Notational Conventions Used in this Guide
TIP: A tip provides a suggestion to make setting up or working with the device easier.
NOTE: A note draws attention to important information.
CAUTION: A caution warns of things or actions that might damage the equipment.
WARNING: A warning warns of things or actions that might cause injury, death, or
other severe consequences.
Copyright
© 2011 Extron Electronics. All rights reserved.
Trademarks
All trademarks mentioned in this guide are the properties of their respective owners.
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Introduction
This section introduces you to the VN-Matrix 200 Series (VN 200). The topics covered in
this section are:
•
•
•
•
•
•
•
•
•
NOTE: This document covers the VNC 200 DVI-I (Codec) matrix switcher only,
although both the VNE 200 and VND 200 may be referenced. Encoder
features may apply to the VNE 200. Decoder features may apply to the
VND 200.
Overview
The VN-Matrix 200 devices distribute RGB video and graphics from a source computer or
similar graphical device across an IP network to one or more viewing stations.
An RGB signal is captured or acquired by a VNC 200 or VNE 200 unit and encoded into a
TCP or RTP data stream for transport across a local area or wide area network. Elsewhere
on the network another VNC 200 or a VND 200 unit can decode the stream back into an
analog RGB or digital (DVI) signal suitable for display on a wide range of display devices.
In addition to an RGB signal, the VNC 200 can provide cross-network transport of:
•
•
Digital audio (SPDIF)
Serial data (RS-232).
NOTE: Digital audio may accompany video, graphics, or both sources. The VN 200
cannot transport an “audio only” signal.
RS-232 serial data can be distributed between VNC 200 units unidirectionally as part of
the source stream (data channel) or bidirectionally independent of any source streams
(passthrough).
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Firmware Version
This user guide is based on v3.8 firmware. You can check for newer firmware releases and
user guide updates by visiting our web site at www.extron.com/downloads.
TIP:
Product Range
There are three VN 200 Matrix products. These units are compatible with each other, but
there are some feature limitations and differences between each variant.
VNC 200 DVI-I — Codec
This unit:
•
•
•
May be configured as either an encoder or a decoder
Supports the full use of remote keyboard and mouse
Remote and RS-232 ports are enabled
REMOTE
RS-232
IN
TO PC
IN
POWER
OVER LAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPDIF
1 — LAN — 2
OUT/LOOP
DVI-I
IN
CODEC
Figure 1. VNC 200 DVI-I, CODEC — Back Panel
VNE 200 DVI-I — Encoder Only
The VNE 200 is an encoder-only device and is compatible with the other products in the
VN-Matrix family.
NOTE: The VNE 200 does not support:
• Mouse and keyboard operation
• RS-232 client / server operation
REMOTE
RS-232
IN
POWER
OVER LAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPDIF
1 — LAN — 2
OUT/LOOP
DVI-I
IN
Encoder
Figure 2. VNE 200 DVI-I, Encoder — Back Panel
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VND 200 DVI-I — Decoder Only
The VND 200 is a decoder-only device and is compatible with other VN-Matrix products
including the VNM Enterprise Controller and the VNC 200 configured as a controller.
The VND 200 does not support:
•
•
Mouse and keyboard operation
RS-232 client / server operation
REMOTE
RS-232
IN
POWER
OVER LAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPDIF
1 — LAN — 2
OUT/LOOP
DVI-I
IN
Decoder
Figure 3. VND 200 DVI-I, Decoder — Back Panel
Functional Overview
Device Name
VNC 200 DVI-I
Part Number
Standard Features
Codec, video, keyboard
Optional Features
by License
60-1117-01
Whiteboard and data
and mouse, output scaling, support
RS-232
VNC 200 DVI-A 60-1118-01
Codec, video, audio,
keyboard and mouse,
output scaling, RS-232
Whiteboard and data
support
VNE 200 DVI-I
VND 200 DVI-I
60-1119-01
60-1120-01
Encoder, video, audio
None
None
Decoder, video, audio,
output scaling
The VNC 200 can be configured to operate in one of two modes:
•
•
As an encoder to encode a source and stream it across a network
As a decoder to decode and display a VNC 200 data stream from a network
Any VNC 200 matrix system will contain at least two devices, one configured as an
encoder and the other as a decoder. Multiple encoders and decoders may co-exist on the
same network.
Encoder Source Compatibility
As an encoder, the VNC 200 is compatible with digital (DVI) and analog (RGB) graphic
standard supported sources).
The VNC 200 incorporates advanced image acquisition circuitry which can auto-detect a
wide range of source types without the need for any additional setup.
For special or non-standard source formats, user-customizable source modes can be
NOTE: The VNC 200 provides analog-to-digital or digital-to-analog conversion via its
monitor connections. Therefore, it is possible to use a digital monitor with an
analog source and vice versa.
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Decoder Display Capability
As a decoder, the VNC 200 is compatible with both digital (DVI) and analog (RGB)
graphics sources up to UXGA (1600 x 1200 at 60 Hz, 24-bit color) resolution.
NOTE: By default, sources are displayed at their native resolution and format.
The decoded image may also be scaled by the decoder to match the native
resolution of the local display.
Control Capability
Source control
The VNC 200 provides loop-through connections for the keyboard and mouse of the
source computer. Local keyboard and mouse control of the source computer is fully
maintained while connected to the VNC 200. In addition, keyboard and mouse functions
can be remotely controlled from the viewing station.
System setup and configuration
Low level communications setup of the VNC 200 is achieved using a serial data link
connected to the Remote port. High level configuration is achieved via the network using
the Integrated Web Management System.
Integrated web management system
The VNC 200 incorporates an integrated web management system (web interface). This
allows any VNC 200 unit on a network to be configured via a PC/laptop (on the same
network), using a standard web browser (for example, Internet Explorer or FireFox).
One VNC 200 unit on the network must be designated as a controller. This unit acts as
a server for the web interface and also holds a database of all VNC 200 devices on the
network.
Any VNC 200 unit, whether it is configured as an encoder or decoder, can be used as a
controller.
The web interface includes a full online help system.
Remote Control
RS-232 serial data can be routed between selected VNC 200 units, for example, to provide
remote control of a source.
Network Requirements
VNC 200 uses highly efficient compression algorithms to minimize the amount of required
data transported across the network.
It is, however, crucial to the effective operation of the VNC 200 that sufficient data
throughput can be achieved, especially where multiple sources are being encoded.
The efficiency of a network will be directly affected by the speed and configuration
of each element within its infrastructure, that is, switchers and routers. The VNC 200
will achieve optimum transmission results over a dedicated 1 Gbps network (gigabit
Ethernet). For more general information on networks and network performance, see
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Example System Application
The diagram below shows an example system application utilizing eight VNC 200 units.
Four are configured as encoders (sources) and four as decoders (displays). Each device is
connected to the network.
Configuration of each device, including which source is displayed on which display, can
be achieved by any PC or laptop on the same network using the VNC 200 integrated web
management system.
Figure 4. Using the VN 200 Matrix to Integrate a Web Management System
In this example, each of the four sources is shown separately on the four displays.
Potentially however, any display can broadcast any source.
Data Transport Methods
Source data from a VNC 200 or a VNE 200 encoder can be distributed to multiple displays/
decoders (one-to-many) or to a single display/decoder (point-to-point).
Video data is transported from the source (encoder) to the display (decoder) using one of
three methods:
•
•
•
Multicast RTP
Unicast RTP
Unicast TCP
A description of each method, together with its advantages and disadvantages, can be
found on the next few pages.
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Multicast RTP
This method uses a real-time variation of UDP (User Datagram Protocol), called RTP (Real-
time Transport Protocol). Multicast RTP allows a source to be displayed on any number of
displays.
SOURCE
DISPLAY
RTP
RTP
RTP
RTP
RTP
RTP
VN-MATRIX
(encoder)
VN-MATRIX
(decoder)
NETWORK
VN-MATRIX
(decoder)
Encoder sends data using RTP
to a multicast group
VN-MATRIX
(decoder)
VN-MATRIX
(decoder)
Any number of decoders can be
part of the multicast group
Figure 5. Multicast RTP
The source encoder uses RTP to send data to a multicast group. The source encoder does
not need to know the IP address of any decoders that use that source.
RTP provides very low latency which is important for video transport. Unlike other
protocols, RTP packets include a timestamp. Therefore, if packets are received in the
wrong order they can easily be sorted into the correct order for display, or discarded if the
timestamp is out-of-date.
However, because RTP is a connectionless protocol, data delivery is not guaranteed. Where
data packets are lost (for example, due to excessive network traffic) the VNC 200 carefully
manages the data stream to minimize any image disruption.
Unicast RTP
Like multicast RTP, this method uses a real-time variation of UDP protocol, called RTP. This
method can be used where the network infrastructure does not support multicast traffic.
Unicast RTP should be used as a point-to-point configuration (that is, single source to
single display) but can be used for up to four displays.
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SOURCE
DISPLAY
RTP
RTP
RTP
RTP
RTP
VN-MATRIX
(encoder)
VN-MATRIX
(decoder)
NETWORK
VN-MATRIX
(decoder)
Encoder sends data using RTP
to up to 4 specified decoders
VN-MATRIX
(decoder)
VN-MATRIX
(decoder)
Figure 6. Unicast RTP
The source encoder defines the display decoder(s) that the source is available to, but the
decoder chooses which source to display.
RTP provides very low latency which is important for video transmission. Unlike other
protocols, RTP packets include a time stamp. Therefore, if packets are received in the
wrong order they can easily be sorted into the correct order for display, or discarded if the
timestamp is out-of-date.
However, because RTP is a connectionless protocol, data delivery is not guaranteed. Where
data packets are lost (for example, due to excessive network traffic) the VNC 200 carefully
manages the data stream to minimize any image disruption.
Unicast TCP
This method transmits data using standard TCP (Transmission Control Protocol) and should
only be used for single point-to-point transfer of data.
SOURCE
DISPLAY
TCP
TCP
VN-MATRIX
(encoder)
VN-MATRIX
(decoder)
NETWORK
Decoder makes a TCP connection
with the specified encoder
Figure 7. Unicast TCP
TCP is a connection-based protocol and, therefore, data is guaranteed to be delivered.
However, in the event of excessive network traffic, delivery may be delayed and will impact
real-time performance.
The decoder defines which source to connect to. Other than defining an IP Address and
source type (if required) no special source encoder setup is required.
NOTE: Multiple decoder connections are theoretically possible using this method but
NOT recommended. Each additional connection will create extra loading on
the encoder CPU which will ultimately result in poor display performance. In
addition, multiple TCP streams carrying the same source data is an inefficient
use of network bandwidth.
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Front Panel Features
LAN-1
LAN-2
STATUS
VN-MATRIX 200 SERIES
RGB/DVI OVER IP
Figure 8. VN-Matrix 200 Front Panel
Indicators
The following indicators are visible on the front of the VNC 200:
Name
Color
Function
Green
• Fully Lit – When the unit is receiving power from the 12V supply input.
POWER -
• Flashing – An over temperature condition has occurred or there was a power
overload or underload condition. Cycle the power off and then on to reset.
LAN - 1
Indicates the status of network port 1:
Orange
Orange
Green
• Fully Lit or Flashing Intermittently – Control or source data is being
transmitted or received by the port.
• Unlit – No data or no network connection detected.
LAN - 2
STATUS
Indicates the status of network port 2:
• Fully Lit or Flashing Intermittently – Control or source data is being
transmitted or received by the port.
• Unlit – No data or no network connection detected.
Indicates the source status of the VNC 200:
Condition Encoder (source)
Decoder (display)
No source input detected
No source being
received
Unlit
Source being streamed
Source being received
N/A
Flashing
Fully Lit
Source present but not being streamed
(that is, unit currently disabled or in
standby mode)
NOTE: During the VNC 200 boot up period (typically 20-30 seconds) the NETWORK and STATUS indicators
may light up or flash intermittently while the unit initializes.
Reset Button
The VNC 200 is fitted with a concealed reset button on the front panel. This can be used
to reboot the operating system, for example, during firmware upgrade procedures.
To activate this button, insert the blade of a very small screwdriver (or similar tool) or
straightened paper clip into the hole on the front panel to the left of the LED indicators.
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Rear Panel Features
e
g
j
k
REMOTE
RS-232
IN
TO PC
IN
POWER
OVER LAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPDIF
1 — LAN — 2
OUT/LOOP
DVI-I
IN
Figure 9. VN-Matrix 200 Rear Panel
a DC power connector — The VNC 200 requires a 12 VDC regulated power supply via
this connector. A suitable power supply unit (PSU) is provided.
CAUTION: Unless otherwise stated, the power supply unit is not suitable for use
in air handling spaces or in wall cavities.
b Audio SPDIF connectors — Two female RCA connectors for input or output/
loop-through of digital audio signals through S/PDIF coaxial cables.
NOTE: Loop-through means that the input is output unprocessed. This feature
only applies to an encoder or a codec configured as an encoder. It does
not apply to a decoder.
c LAN network connectors (1 and 2) — Two female RJ-45 connectors are used
to connect the VN 200 to an Ethernet network. Typically, port 1 is used for data
streaming and device configuration (using the web interface). Port 2 is reserved for
future use and special applications.
d Keyboard connector — Connect the keyboard to the PS/2 port.
e Mouse connector — Connect the mouse to the PS/2 port.
f PC keyboard connector — Connect the VN 200 PS/2 keyboard port to the PS/2
keyboard port of the PC.
g PC mouse connector — Connect the VN 200 PS/2 mouse port to the PS/2 mouse
port of the PC.
h DVI-I out/loop connector — Connect the computer monitor to the female DVI-I
output/loop-through port.
NOTE: Loop-through means that the input is output unprocessed. This feature
only applies to an encoder or a codec configured as an encoder. It does
not apply to a decoder.
i DVI-I input connector — Connect the DVI-I output port of the computer to the
female DVI-I input port.
j Remote serial connector — This male 9-pin communications port is typically used to
configure the VN 200.
k RS-232 serial connector (over LAN) — This male 9-pin port is typically used to
transmit and receive data across a network.
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Installation
and Basic Setup
Procedure
This section describes the following:
•
•
•
•
•
•
Choosing a Suitable Location for Mounting
The VNC 200 is designed to be used either as a free-standing unit or mounted in a
19-inch rack using optional mounting kits.
CAUTION: Whichever installation method you choose there are certain environmental
be observed in order to ensure safe and reliable operation.
For rack-mounted applications the criteria detailed in “Mounting
Requirements” must also be observed.
Environmental Requirements
CAUTION: The criteria in this section must be observed for all installations of the
VNC 200, whether free-standing or rack-mounted.
Orientation
The VNC 200 is designed to be used free-standing on a stable, horizontal surface. It can,
however, be used in any orientation subject to the necessary ventilation requirements.
Temperature
DO NOT install or operate the VNC 200 in an area where the ambient temperature
exceeds 35°C (95°F) or falls below 5°C (35°F).
As with all electronic equipment, the VNC 200 and its associated PSU produce heat which
may affect the ambient temperature.
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After the VNC 200 has been in use for a period of time the external casing may become
slightly warm to the touch. Ensure that any adjacent surfaces will not be affected by the
heat.
Ventilation
DO NOT obstruct the ventilation openings during use. The VNC 200 has an integral
forced-air cooling system. A fan draws air in through the ventilation openings in the front
panel and expels the heated air through the openings in the back panel. The fan speed is
controlled automatically by an internal temperature sensor. The fan may, therefore, appear
to run faster as the unit warms up or if the ambient temperature is increased.
A self-resetting thermal cutout will shutdown the VNC 200 if the temperature exceeds
design limits.
Humidity and Water
DO NOT install or operate the VNC 200 in an area:
•
•
•
In which the ambient relative humidity exceeds 85%
That is prone to condensation
Near water or in a location which may be prone to water seepage
Mounting Requirements
Tabletop Mounting
If not already attached, attach the four rubber feet to the bottom of the unit and place it
in a suitable location.
CAUTION: For rack-mounted installations, the following criteria must be observed
(in addition to the environmental requirements listed in “Environmental
UL Guidelines for Rack Mounting
The following Underwriters Laboratories (UL) guidelines are relevant to the safe installation
of these products in a rack:
1. Elevated operating ambient temperature — If the unit is installed in a closed or
multi-unit rack assembly, the operating ambient temperature of the rack environment
may be greater than room ambient temperature. Therefore, install the equipment in
an environment compatible with the maximum ambient temperature (Tma: +95 °F,
+35 °C) specified by Extron.
2. Reduced air flow — Install the equipment in the rack so that the equipment gets
adequate air flow for safe operation.
3. Mechanical loading — Mount the equipment in the rack so that uneven mechanical
loading does not create a hazardous condition.
4. Circuit overloading — Connect the equipment to the supply circuit and consider the
effect that circuit overloading might have on overcurrent protection and supply wiring.
Appropriate consideration of the equipment nameplate ratings should be used when
addressing this concern.
5. Reliable earthing (grounding) — Maintain reliable grounding of rack-mounted
equipment. Pay particular attention to supply connections other than direct
connections to the branch circuit (such as the use of power strips).
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Rack Mounting
Always use the special under-desk mounting kits (optional) to secure the VNC 200. See
included with each kit. It will be necessary to remove the four feet prior to rack mounting.
Never place other units directly on top of the VNC 200 when it is rack-mounted as this will
place excessive strain on the mounting brackets.
Under-desk Mounting
Always use the special under-desk mounting kit (optional) to secure the VNC 200. See
included with each kit.
Power Connection via PSU
Always ensure that the power supply is the correct voltage and frequency for all
equipment within the rack, and that it has a good ground (earth) connection.
Where a power strip is used, always ensure that the current rating of both the power strip
and the supply is sufficient for all equipment within the rack.
The VNC 200 must be powered from a 12 VDC regulated supply. A suitable power supply
unit (PSU) is provided. The power connection details that follow relate to the PSU.
CAUTION:
• Never connect the VNC 200 directly to the power source.
• To ensure CE compliance always use the PSU provided.
• If a backup or replacement PSU is required, always use an Extron approved
PSU.
Supply Requirements for PSU
CAUTION: Always observe the following instructions to ensure safe and reliable
operation of the PSU.
Always ensure that the supply voltage is single phase only and is within the permitted
range:
100 – 240 VAC (0.45 A Max.) 50 – 60 Hz.
NEVER connect the PSU to a DC supply.
DO NOT allow the power outlet to be overloaded. This is particularly important to check
when powering several items of equipment from a single power outlet (that is, within
rack-mounted installations).
WARNING:
• This equipment must be grounded.
• To avoid the possible risk of electric shock or product damage due to con-
densation, ALWAYS allow the PSU to adapt to the ambient temperature and
humidity for at least thirty minutes BEFORE switching on. This is particularly
important when moving the unit from a cold location to a warm location.
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Power Cord for PSU
The PSU is equipped with a 3-pin (male) type connector which requires a power cord fitted
with a corresponding 3-pin IEC320 (female) connector.
The type of power cord that is supplied will be appropriate for use in your country:
WARNING: Do not allow anything to rest on the power cord.
Power-up Procedure
You must always ensure that the VNC 200 is powered on at the same time as the source
computer or slightly before.
Powering the VNC 200 after the source computer may result in the source computer not
correctly detecting the mouse, keyboard, monitor, or all three.
Attaching a Power Plug
If you are attaching a plug to an unterminated power cord (or replacing an existing
plug), you must fit a plug that is:
•
•
•
•
Rated for use with mains voltage
Equipped with a grounding pin or connection
In compliance with any applicable national or local electrical regulations
Fitted with a correctly rated fuse (applicable to UK-style plugs only (see “Setup
WARNING: Never attempt to fit or use a plug without a ground connection.
Wiring Details
The wires of both power cords (supplied with each VNC 200) are color-coded as shown in
the table below. Be sure to connect your plug in accordance with the following guidelines:
Connect the wire colored...
to the plug terminal identified with...
Brown
‘L’ or ‘Live’ or ‘Line’
(or colored red or brown)
Blue
‘N’ or ‘Neutral’
(or colored blue or black)
Green and Yellow
‘E ’ or ‘E’ or ‘Earth’ or ‘Ground’
(or colored green or green-and-yellow)
WARNING: If you are unsure of the connections, or if the markings in your plug do
not match those given above, consult a qualified electrician.
NOTE: The PSU is double insulated and does not require an ground connection.
However, the ground cable of the lead must be connected in the plug.
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External Supply Protection
CAUTION: The power cord supplied with this product is rated at 10A maximum and
must be protected from overload by an external fuse or circuit breaker.
Fused plugs (UK style)
If the power cord is fitted with a UK style BS1363 3-pin plug (i.e. with provision for an
internal fuse), then it must be fitted with a BS1362 ASTA approved 1 inch cartridge
fuse.
This fuse must be rated at a maximum of 10A/250V. Since the current draw of the
PSU is less than 1A, a fuse of a lower rating not less that 3A/250V may be used.
WARNING: Never attempt to fit a fuse or circuit breaker of a higher maximum
rating than shown above.
Unfused plugs or hard-wired
If the power cord is fitted with an unfused plug or it is hard-wired into a power strip,
then the power cord must be protected by an external fuse or circuit breaker of a
rating shown in the table below:
Supply Voltage
110V nominal
230V nominal
Maximum Fuse Rating
Minimum Fuse Rating
10A
3A
10A
3A
WARNING: Never attempt to fit a fuse or circuit breaker of a
higher maximum rating than shown above.
Setup and Connection Procedure
Setting up and connecting an VNC 200 system is best undertaken in three steps.
•
Step 1. Network Communications Setup
Configure the network settings for each device using a PC or laptop and serial
data link, ensuring that one device is configured as a controller (see“Network
•
Step 2. Connect Devices
Connect each device to the network and connect its associated source or display
Step 3. System Configuration
Use a PC or laptop connected to the VN-Matrix network to access the web interface
(served by the controller) to configure each device to be an encoder (source) or
decoder (display) (see “System Configuration”).
CAUTION: Do not proceed with connecting or configuring the VNC 200 for an
existing network until you are certain you know what you are doing.
Incorrect connection or configuration may cause disruption to other
network users.
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Network Communications Setup
To establish a serial communication link…
1. Using a null modem serial cable, connect the serial port of a PC or laptop to the
Remote serial port on the VNC 200 to be configured.
REMOTE
RS-232
IN
TO PC
VNC 200
IN
POWER
OVER LAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPDIF
1 — LAN — 2
OUT/LOOP
DVI-I
IN
PSU
Power
Source
Figure 10. Establishing a Serial Communication Link
2. On the PC or laptop, run a terminal emulation program such as HyperTerminal with
the following comm settings:
Baud rate:
Data bits:
Parity:
Stop bits:
Flow control:
115200
8
None
1
None
NOTE: HyperTerminal is supplied with most Windows® operating systems.
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To access the setup menus…
1. Connect power to the VNC 200 or, if already connected, cycle the power off then on.
2. The VNC 200 will start sending setup/diagnostic data which should appear in the
HyperTerminal window. After a few seconds, this will conclude with a display similar
to this:
VN Matrix(R) Maintenance Console: ver3.1c
(none) login: ThorPci Init
registering plx interrupt routine = D17F89FC, -780166896
Hello kernel
thor_init_module: pre-ioremap
thor_init_module: post-ioremap
Hello kernel, this is MK registering
registering plx interrupt routine = D296BD30, 0
3. Press the <Enter> key. The VNC 200 should respond with the following login prompt:
VN Matrix™ Maintenance Console: ver3.1c
192.168.0.1 login:
NOTE: The login prompt will be preceded by the current IP address of the unit.
4. Type: config<Enter>
5. When prompted for a password type configfollowed by the <Enter> key. The
following menu of options will then appear:
Network Port 1
0. Speed/Duplex: auto_10_100_1000
Network Port 2
10. Speed/Duplex: auto_10_100_1000
1. Boot method:
2. Address:
static [dhcp]
192.168.0.1
255.255.255.0
192.168.0.1
11. Boot method:
12. Address:
static [dhcp]
192.168.1.1
255.255.255.0
192.168.0.1
3. Netmask:
4. Gateway:
5. Broadcast:
6. MTU:
13. Netmask:
14. Gateway:
15. Broadcast:
16. MTU:
1500
1500
0
7. Controller IP:
192.168.0.18
17. IP forwarding:
8. Controller port: 5432
9. Exit
18. Webserver port: 80
NOTE: The IP address details shown above are for illustration only and do not
represent values that will work in a particular application.
The following table describes the menu options in greater detail.
6. Change the settings as required by typing the option number followed by the <Enter>
key. Then type the new value followed by the <Enter> key.
For example, to change the Network Port 1 IP address to 172.28.232.16:
Type: 2<Enter>, then type: 172.28.232.16<Enter>
NOTE: Do not include any leading zeros when typing IP addresses.
For example, type 192.168.0.18and not 192.168.000.018.
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Network Port Specific Options
Option Function
Comment
0 and 10 Network port link speed
Select this option to set the network link speed.
1 and 11 Set STATIC or DHCP
Entering 1 or 11 will toggle this option. When DHCP is selected,
items 2 through 5 and 12 through 15 are not accessible.
NOTE: It is necessary to assign a known IP address for the
controller. This address must be entered manually
into each VNC 200 unit. Therefore it is not always
practical to use DHCP. It is recommended to use a
static IP address scheme.
2 and 12 Set the local address of the
network port
Network port 1 is assigned to the RJ-45 connector.
Network port 2 is assigned tto he RJ-45 connector.
Standard Ethernet IP addressing rules apply.
Do not use any leading zeros in the IP address.
For example: 172.28.12.100 is valid, 172.028.012.100 is not
valid.
3 and 13 Set the appropriate subnet mask
for the network.
Standard Ethernet subnet rules apply.
Do not use leading zeros in the subnet mask.
For example: 255.255.10.0 is valid, 255.255.010.0 is not valid.
4 and 14 Set the IP address of the default
gateway.
Required for VNC 200 systems that include multiple subnets.
The default gateway must be on the same subnet as the port to
which it is assigned.
NOTE: Setting the gateway address allows for bit rate
statistics to be displayed in the streams panel of the
encoder bandwidth page.
Only one default route is supported. Once a value is set on
either option, the other option is no longer available. To clear a
gateway address, select the option (4 or 14) and press <Enter>
with no value set.
Standard Ethernet IP addressing rules apply. Do not use any
leading zeros in the IP address, that is, 172.28.12.100 is valid,
172.028.012.100 is not valid.
5 and 15 Set the broadcast address.
Not required.
6 and 16 Set the value of the maximum
transmission unit, for example,
This value will affect the performance of the system. A large
value can cause packets to be fragmented (split) while a small
the number of bytes (payload) in a value may not make efficient use of the network capacity.
frame.
For Ethernet this value is normally set to 1500. In certain
circumstances this value may need to be changed to better
match the network that is in use.
Unit Specific Options
7
Set the IP address of the controller. Only one VNC 200 may be configured as a controller.
The controller IP address must be set to the IP address (option
2 and 12) of either network port on the unit designated as the
controller. This is the port over which control data is sent.
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17
IP forwarding
By default, this parameter is set to 0. For normal operation,
there is no need to modify this setting. Setting a value 1 will
enable IP forwarding between the two network ports on the
device. This function is not required for normal operation of the
device.
8
Set the number of the port that is By default this is set to 5432, and this may be changed if
used for communications with the required. Note that all VNC 200 units MUST have the same port
system controller.
number assigned.
18
Set the port number that is used
for communication with the web
server.
By default this is set to 80, and this may be changed if required.
Note that the web browser in use must use the same port
number.
NOTE: Option 18 is only visible on the controller.
9
Reboot and activate settings.
Reboot the VNC 200 to activate any changes made.
NOTE: Typing rebootat the HyperTerminal cursor will also
reset the unit.
NOTES:
• For normal applications only Network Port 1 settings need to be configured.
• Options 1 and 11 are toggle action. For example, to switch between static and DCHP
modes simply type 1 <Enter>. The currently selected mode is the option listed first.
When DHCP mode is selected, options 2, 3, 4, and 5 (or 12, 13, 14, and 15) will not
be displayed.
• Only one VNC 200 may be configured as a controller (see below). The controller IP
(option 7) must be set to the IP address of the unit designated as the controller.
To configure a VNC 200 as a controller…
1. Ensure the boot method for Network Port 1 is set to static (option 1).
2. Set the IP address (option 2) and controller IP (option 7) to the same value.
To implement the new settings…
1. Once you have completed making any changes, type 9<Enter> to exit the menu. The
VNC 200 will now reboot automatically to implement the new settings.
2. If the unit does not reboot for any reason or you want to perform a manual reboot,
type reboot<Enter> at the command prompt (or cycle the power off and on) to
reboot the unit and implement the new settings.
The VNC 200 is now ready for connection to the network.
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Connect Devices
Supplied cables
A set of cables is supplied with the VNC 200 to accommodate a variety of standard
connection requirements. The VNC 200 is compatible with both digital (DVI) and
analog signals. The unit is provided with the additional cables that you may require.
Source
Display
(Encoder) (Decoder)
Cable Description
√
√
√
Mouse and keyboard cable (PS/2 to PS/2) (2 off)
Digital monitor cable (DVI-D to DVI-D)
√
√
√
√
√
Analog monitor cable (15-pin high-density D-type to
DVI-A)
DVI-A to 15-pin high-density D-type adapter
For connection diagrams, see the sections as indicated
by the circled reference numbers:
a b c d
NOTES:
• Disconnecting and reconnecting PS/2 cables to a computer that is already
switched on may cause loss of mouse and keyboard control or cause the
computer to freeze. It is recommended, therefore, that the connections are made
• If you use a monitor cable or adapter other than that provided with the VNC
200 (configured as an encoder), you must ensure that all pins are properly
interconnected, otherwise the computer graphics card or monitor may not
operate correctly.
Network connection
CAUTION: Do not proceed with connecting the VNC 200 to an existing network
until it is correctly configured using the procedure in “Network
Communications Setup.” Incorrect connection or configuration may
cause disruption to other network users.
Typically, the VNC 200 will connect to a convenient network point on an existing in-
house network. Use a standard CAT 5E, CAT 6, or better patch cable for this purpose.
A patch cable is not supplied with the VNC 200, but it is available in a variety of
lengths.
If a convenient network connection point is not available, it will be necessary to have
one installed. Consult your IT or network administrator for advice. Alternatively, the
VNC 200 and source computer can share a connection by using a network switch.
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Hubs are not suitable for use with the VNC 200 as they restrict bandwidth.
NOTE: For normal VNC 200 operation, use Network Port 1 only.
TIP:
With the VNC 200 powered and connected to a network, the Network
Status Indicator (next to the network connector) should be lit, as follows:
Connecting a digital source
SOURCE COMPUTER
SPDIF audio out
mouse keyboard
DVI monitor out
Phono
to
Phono
PS/2
to
PS/2
DVI-D
to
DVI-D
IMPORTANT!
Fit clip-on ferrite
to this end of cable
REMOTE
R2
IN
TO PC
VNC 200
(Encoder)
IN
POWER
OVEAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPDIF
— LAN — 2
OUTOOP
DVI-I
IN
PSU
NETWORK
Power
Source
DVI
MONITOR
Figure 11. Connecting a Digital Source
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Connecting an analog source
SOURCE COMPUTER
SPDIF audio out
mouse keyboard
analog monitor out
15-pin
Phono
to
Phono
PS/2
to
PS/2
IMPORTANT!
Fit clip-on ferrite
to this end of cable
HD-type
to
NETWORK
DVI-A
REMOTE
R2
IN
TO PC
VNC 200
(Encoder)
IN
POWER
OVEAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPDIF
— LAN — 2
OUT/LOOP
DVI-I
IN
DVI-A to
15-pin HD-type
Adapter
PSU
NETWORK
Power
Source
ANALOG
MONITOR
Figure 12. Connecting an Analog Source
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Connecting a digital display
Power
Source
NETWORK
PSU
VNC 200
(Decoder)
REMOTE
RS-232
IN
TO PC
IN
POER
OVER LAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPIF
1 — LAN — 2
OUTOOP
DVI-I
IN
Phono
to
Phono
SPDIF audio in
AMPLIFIER
DVI
DISPLAY
Figure 13. Connecting a Digital Display
NOTE: The VNC 200 provides both an analog and digital output signal regardless
of the original source format.
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Connecting an analog display
Power
Source
NETWORK
PSU
REMOTE
RS-232
VNC 200
(Decoder)
IN
TO PC
IN
POER
OVER LAN
OUT/
LOOP
12V DC
5A MAX
AUDIO
SPIF
1 — LAN — 2
OUTLOOP
DVI-I
IN
DVI-A to
15-pin HD-type
Adapter
Phono
to
Phono
SPDIF audio in
ANALOG
DISPLAY
Figure 14. Connecting an Analog Display
NOTE: The VNC 200 provides both an analog and digital output signal regardless
of the original source format.
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System
Configuration
This section describes the following:
•
•
•
•
VNC 200 Web Interface
Once all VNC 200 devices have been correctly set up for (and connected to) a network,
any further system configuration is achieved via the VNC 200 web interface. This contains
a number of pages which provide access to various system parameters.
TIP:
This section provides step-by-step instructions for using the web interface and
is aimed at new users of the VNC 200 system. Advanced users may wish to
The web interface is “served up” by the VNC 200 device that was designated as
the controller during the network setup procedure (see “Setup and Connection
laptop that is connected to the same network as the VNC 200 devices.
Suitable browsers include, but are not limited to:
•
•
Microsoft® Internet Explorer (v6 and above)
Firefox®, Mozilla® (v1.3 and above)
NOTE: Whatever browser is used, it must be configured to accept cookies and
be JavaScript-enabled. For further help on configuring your browser, see
Accessing the web interface
1. Enter the IP address of the controller device into the address bar of the web browser,
for example, http://192.168.0.18. The following web page illustration appears in
the web browser.
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Figure 15. VN-MATRIX Controller Log In Screen
2. Enter the appropriate username and password.
The VNC 200 has two user accounts:
•
•
admin — Allows full read and write access to all setup parameters.
public — Allows read only access to setup parameters.
NOTES: • As shipped from the factory, the password for both accounts is
the same as the username (the password is “admin” for the
administrator account and “public” for the public account).
• The username and password are case sensitive.
• For intial setup, use the admin username.
Initially, the password for both accounts is the same as the username (that is, the
account name). It is recommended that these passwords be changed after logging in
3. Click the Log Inbutton. If the login details are correct the Device List page will
appear (see the next section).
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Device List Page
Figure 16. Device List Page
This page lists all VNC 200 devices detected on the network.
NOTE: If devices are added after this page is displayed they will not automatically
appear on this list. You will need to refresh the list by clicking the Device
Listtab, or by refreshing the browser.
Once a VNC 200 device has been detected and listed on the Device List page, an entry will
be displayed even if the device is subsequently disconnected. All valid devices are listed by
device name and their current IP address. Missing devices are easily identified by the lack
of an IP address. These devices are not currently available (for example, the device may be
disconnected from the network or powered down).
The current configuration status of each device is also identified by an icon:
Unconfigured device
Configured as an encoder (source)
Configured as a decoder (display)
Configured as a PC system such as a recorder or playback device
In a new system, all VNC 200 devices will typically be in an unconfigured state. The
remainder of this section will guide you through the process of configuring each VNC 200
as either an encoder (source) or decoder (display).
Online help
Online help is available for each page in the web interface by simply clicking
the Helptab.
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Interface timeout and logging out
If the web interface is left unattended or is not used for a period of 30 minutes it will
automatically logout. You can start using the interface again by re-entering your login
details.
To logout of the web interface…
Click the Logouttab on any page or close the web browser.
Save All tab
On the Device List page only, there is a Save Alltab.
Clicking the Save Alltab will save all current settings (including those that have been
updated) for all VNC 200 units.
The following procedure assumes that a valid source is connected to the VNC 200. For
NOTE: This procedure provides a basic level of configuration which will be
adequate for most systems. For additional options, see “Advanced Setup
Procedures.”
Figure 17. Configuring a VNC 200 as an Encoder
a On the Device List page, click the device that you want to configure. The Device page
will appear.
b If the device has not been configured (Device Type is none), click the create source
button (see Device Setup Mode on the Helptab).
TIP: You can change the default device name to be more relevant to the source
input (for example, Camera1). See Ç below.
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Figure 18. Device — Create Source button
c Check that the Modefield is set to enable (see the Device Setup Mode on the Help
tab).
TIP: To help identify this device during setup or troubleshooting, check the
Identifybox to display the device name on the local monitor (where
connected). See the Device Setup Identify checkbox on the Help tab Ñ.
Figure 19. Device Mode
dClick the Save Alltab.
eClick the videoPort0icon. The Configure page will appear.
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Figure 20. Configure Page
g Check that the Current Modeshows the format of the connected source. If it does
h Check the Multicast Enablebox if RTP multicast source streaming is required,
otherwise ensure this box is unchecked to enable RTP unicast.
TIP: If your source or local monitor uses EDID, you may need to look at these
i Does the source have an audio channel?
No...
Yes...
If a local monitor is connected it should now be
displaying the source. If it is not, see “Source
Checkup.”
Audio”.
j Repeat this procedure (from step a) for each encoder in the system. To configure the
VNC 200 device as a decoder (display), see “Configuring a VNC 200 as a Decoder
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Additional Setup for Audio
Figure 21. Device Page — Audio
a Click the Devicetab to return to the Device page.
b Click the audioPort0icon. The Configure page will appear.
Figure 22. Configure Page — Audio
c Check that the Audio Statusshows a valid audio source type. If it does not, see
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e Check the Multicast Enablebox if RTP multicast source streaming is required,
otherwise ensure this box is unchecked to enable RTP unicast. This must be the same
as the videoPort setting.
f Click the Save Alltab. Encoder setup is now complete.
for each encoder in the system. To configure a VNC 200 device as a decoder display
Additional Information for Encoder Setup
Input mode
The default and recommended input mode for a VNC 200 encoder is auto. This mode
provides full detection of the applied source and automatic configuration of input
parameters. It has the additional advantage that if a different source is connected at
any time, the VNC 200 will automatically reconfigure the input for the new source.
Auto mode will detect most standard video and graphic source formats. However, the
VNC 200 may not autodetect correctly if the source input:
•
•
•
•
Is a non-standard format
Is an RGsB (sync on green) or YPrPb source type
Has a poor quality signal
Has Macrovision® copy protection
In these cases, to achieve reliable operation, some fine-tuning may be necessary. A
predefined or custom input mode can also be applied.
EDID options
Many modern computers and monitors are capable of using EDID (Extended Display
Identification Data). This allows a computer graphics card to be ‘aware’ of the
capabilities of the display connected to it. The VNC 200, when configured as an
encoder, provides different options for handling EDID.
Figure 23. Handling EDID
a The Monitor EDIDfield shows the local monitor display type. If no local monitor is
connected or the monitor does not support EDID, this will show No Device.
b The Reported EDIDfield shows the EDID that VNC 200 reports back to the source
device. Transparent mode will report the current or last connected monitor type.
Alternatively, choose one of the listed display types.
Identify Mode
As an aid to setting-up a VNC 200 encoder in a large or complex system, use the
Identifyfunction to display the device name on the local monitor (if using a local
monitor).
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Figure 24. Identify Mode
Check the Identifycheckbox, then click the updatebutton. The device name will
appear on the local display. See the following example.
Figure 25. Identify Mode Example
NOTES: • The name will only display if a valid source is connected and has been
correctly detected by the VNC 200.
• The name only displays on the local display output. It does not appear as
part of the streamed source.
Device mode
A VNC 200 encoder can be configured in four modes:
•
•
•
•
Enable Allows the source to be streamed.
Disable Prevents a source from being streamed.
Standby Prevents a source from being streamed.
Test Displays a splash screen with the text “test mode”. Normal streaming is
suspended.
For normal operation, enable must be selected.
Audio status
Where a valid digital audio signal is connected to the digital audio IN connector, the
type of signal will appear in the Audio Statusfield on the Configure (audioPort)
page.
The VNC 200 supports the auto-detection of 44100 Hz and 48000 Hz digital audio
sources.
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Advanced setup options
The encoder set up procedure on the preceding pages will achieve a basic level of
operation which will be adequate for most normal applications.
The following advanced setup options are possible.
Fine-tuning of input parameters
Creation of custom input modes
Changing video compression
Managing bandwidth usage
Changing audio compression
Configuring a VNC 200 as a Decoder (Display)
The following procedure assumes that at least one VNC 200 encoder has been configured
It is also assumed that a suitable display device is connected to the VNC 200. For details
NOTE: This procedure provides a basic level of configuration which will be adequate
for most systems. For additional advanced setup options, see “Additional
Figure 26. Configuring a VNC 200 as a Decoder
a On the Device List page click the device that you want to configure as shown in the
above image. The Device page will then appear.
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Figure 27. Device Page for Decoder Setup
b Check that the Modefield is set to enable as shown above. Click the create display
button (see Ç above). See the Helptab for details.
TIP: You can change the default device name to be more relevant to the source
input, for example, Screen1. See É above.
NOTE: Device names can use letters and numbers as well as the underscore and
hyphen characters, but must not include spaces.
c For more information see Device Setup on the Helptab.
TIP: To help identify this device during setup or troubleshooting, check the
Identifybox Ñto display the device name on the local monitor (where
connected).
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Figure 28. Device Page Setup
d Click the Save Alltab as shown above.
e Click the display0icon as shown above.
The Display page will appear.
Figure 29. Display Page — Decoder
f Check that the Output Formatis set to autoas shown above. This forces the output
format to be the same as the chosen source.
Tip: The Nodata Splash option determines how the display output behaves if no
source is selected or if the source stops streaming for some reason (see ä
above). See Nodata Splash on the Helptab for more information.
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g If the source type is RGsB (sync on green), ensure that SoGis checked as shown below.
Otherwise, it should be left unchecked as shown in the previous diagram. This forces
the output format to be the same as the chosen source.
Figure 30. Selecting a Source Stream
h Select one of the available source streams as shown above.
Each source is listed by the device name, videoPort name, and suffixed by the
connection type.
•
•
•
_rtp is an RTP Unicast connection
_rtp(m) is an RTP Multicast connection
_tcp is a TCP Unicast connection
i If the chosen source has an audio channel, check the audio enablecheckbox.
Otherwise, leave the box unchecked as shown in the previous diagram.
j Click the Updatebutton and the Save Alltab as shown above. The chosen source
Additional Information for Decoder Setup
Identify mode
As an aid to setting-up a VNC 200 decoder in a large or complex system, use the
Identifyfunction to display the device name on the display output.
NOTE: Source Identifydisplays the name of the source stream that is being
decoded. The text appears to the right of the Identifytext.
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Figure 31. Identify Function
a Check the Identifycheckbox as shown above.
b Click the Updatebutton. The device name will appear on the display (see the
following illustration).
Figure 32. Device Name
NOTES: • The device name will only display if a valid source is currently
selected and being displayed.
• The device name only displays on the selected output device. It does
not appear as part of the streamed source on other displays.
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Figure 33. Nodata Slash Mode
Nodata Splash Mode
If a VNC 200 decoder is not displaying a source (for example, if no source is selected,
has become disconnected, or is in the wrong format), it offers two different display
options.
The required option is selected using the Nodata Splashcheckbox:
•
•
Displays a splash screen (see example
right),
or
Displays the last frame of valid source
data (black if no data is available).
Scaling
In normal operation the decoder output format is set to auto and the output
resolution will be the same as the encoded source resolution.
For applications where it is necessary to set the output of the decoder to match the
resolution of the locally connected display, the scaleoption may be enabled and the
required output resolution can then be selected from the Output Formatdrop down
list, as shown below.
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Figure 34. Decoder Output Format
Clean switching
Clean switching provides a method by which streams may be decoded and displayed
without disruption to the image that is displayed on the local decoder display.
Clean switching is supported in the VN Matrix Enterprise Controller that manages all
aspects of the system configuration.
Device mode
A VNC 200 decoder can be configured in four modes:
•
•
•
Enable
Allows the selected source to be displayed,
Disable
Standby
Prevents a source from being displayed (display is blank),
Prevents a source from being displayed (display shows “no data”
splash screen).
•
Test
Displays a splash screen with the text “test mode.”
For normal operation, enable must be selected.
Advanced setup options
The decoder set up procedure on the preceding pages will achieve a basic level of
operation which will be adequate for most normal applications.
The following advanced setup options are possible.
Setting optimum playback delay
Monitoring bandwidth usage
Creation of custom output modes
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Troubleshooting
If you have followed the procedures on the preceding pages, you should by now have set
up at least one VNC 200 encoder, one VNC 200 decoder, and be able to display the source
(encoder) on the display (decoder). If not, this section will help to diagnose most problems
that you may encounter.
Display Checkup
Most problems in a VNC 200 system will manifest themselves as some kind of disruption
of the target display. Use the flowchart on the following page as a starting point to trace
common problems, either with the decoder (display) or elsewhere in the system.
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Source Checkup
When diagnosing problems with an encoder or source, it is highly recommended that
a local monitor be connected to the VNC 200. If a monitor is not already connected as
part of the system, it is suggested that one be connected temporarily. See the following
flowchart.
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System Checkup
Follow this checkup to ensure that all VNC 200 devices in your system are online and
correctly configured as either encoders or decoders.
•
•
Navigate to the Device List page.
Figure 35. System Checkup on Device List Page
Item
Test
Is each device correctly configured
as either
Unconfigured devices are marked with a
For recorder information see the VNM Recorder
User Guide.
.
• A PC system/Recorder?
• An Encoder?
• A Decoder?
Is an IP address shown with each
device?
If there is no IP address shown, then this indicates
that the device is offline.
• Ensure that the device in question is powered.
• Ensure that all network cables are connected.
• Ensure that the device is correctly configured for
network operation.
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Controller Checkup
Follow this checkup flowchart if you cannot establish contact with the VNC 200 controller
device using the web browser on a control PC.
START
Check that you are using a supported web browser.
Check that the VN-Matrix controller device is
powered and connected to the network.
Check that you have the correct IP address for the
VN-Matrix controller device and try pinging the
controller from the control PC.
NO
YES
Did the controller
respond to pinging?
Try rebooting the VN-Matrix
controller and/or control PC.
Check that the VN-Matrix controller and
control PC are on the same subnet.
Figure 36. Controller Checkup
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Serial Transport
and Control
Methods
This section describes the following:
•
•
•
•
Overview
Setting Up a Serial Passthrough Group
Serial/Telnet Commands
Data Stream Mode
Overview
Routing of external serial (RS-232) communications can be achieved between any VN 200
units on the same network.
Serial traffic can be:
•
•
•
•
Unidirectional as part of a source stream (encoder to decoder)
Data Stream Mode (licensed option)
Bi-directional and independent of any source stream
Passthrough Mode.
In addition, serial commands can be sent via any VN 200 device to the VN 200 controller,
allowing dynamic control of system parameters (Remote Control Mode).
Passthrough Mode
In this mode, data received by a device (input) is transmitted using TCP/IP over the network
and then converted back to serial data by a device (output). Data flow is fully bi-directional
and totally independent of whether a VN 200 is configured as an encoder or decoder.
One device within a passthrough group is designated as a server. One or more devices are
then connected as clients (in passthrough mode):
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RS-232
TCP
TCP
TCP
TCP
RS-232
VN-MATRIX
(server)
VN-MATRIX
(client)
NETWORK
RS-232
RS-232
VN-MATRIX
(client)
Data input to the server is sent to the
outputs of all clients simultaneously.
VN-MATRIX
(client)
Data input to each client is sent to the
server output. Simultaneous data input
is processed on a "first in first out" basis.
Serial ports on each VN 200 need not share a common baud rate. However, where a
large amount of data is sent from a high speed to a low speed data link, some form of
handshaking or flow control may be required to prevent buffer overflow on the output
device. Standard flow control methods are fully supported.
Any number of serial passthrough groups may exist on the same network. To set up a
Setting Up a Serial Passthrough Group
1. Decide which VN 200 unit will be the server in the passthrough group and which
will be the client(s), and connect your serial devices to the VN 200 RS-232 ports
accordingly.
Remember, communication can only take place between server and client(s), not
between clients.
3. From the Device List page, click on the device you want to configure as the server.
4. From the Device page, click the Peripheralstab to display the following:
Figure 37. Peripherals Page
5. Using the modedrop-down menu select the server option.
6. Change the other settings as required, then click the Save Alltab.
Then, for each client in the group…
1. Return to the Device List page (by clicking on the Device Listtab).
2. Click on the device you want to configure as a client, then click the Peripheralstab.
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3. The Serial Port Control options are shown below.
4. Using the modedrop-down menu select the client option (note that this will reveal the
destination box).
5. Using the destinationdrop-down menu select passthroughfor the appropriate
server.
6. Change the other settings as required, then click the Save Alltab.
Serial / Telnet Commands
The following commands can be used to provide basic remote control of a VN 200 system.
Commands can be issued either as part of a serial remote control configuration or by
using a Telnet application via the network.
In either case, a control session must first be initiated by sending a valid username and
password.
All commands must be terminated with a new line character (carriage return not required).
In programs such as Telnet, this is accomplished by pressing the Enter key.
Control Session Commands
user <username>
Initiates a user login. To be able to change system settings you must login using the
“admin” user account.
Example: user admin
pass <password>
Specifies the password for the user account. By default this will be ‘admin’ but may have
Example: pass admin
exit
Terminates the current remote control session.
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Device Commands
mode <deviceid> <state>
Changes the operating mode of the specified device.
<deviceid> Is the device serial number of the device or the user-defined device name.
<state> Is the required mode and can be set to:
• enable – for normal operation
• disable – to stop encoder source streaming or stop display output on a decoder
• standby – to stop encoder source streaming or display splash screen on a decoder
Example: mode 16 enable
channel <deviceid> <window> <sourceid.videoport.protocol>
Changes the source being displayed in a window of the specified decoder device.
<deviceid> Is the device serial number of the device or the user-defined device name.
<window> Is the window object number. Currently this can only be 0.
<sourceid.videoport.protocol> Is the source to be displayed, where:
• source id is the serial number of the source device
• videoport is the video input number, usually set to 0
• protocol specifies either RTP or TCP, set to 0 for RTP or 1 for TCP
Note: Full stops (.) are required between the sourceid, videoport, and protocol values.
Example: channel 17 0 16.0.1
optimization <deviceid> <videoport> <mode>
Changes the compression transform for the specified encoder device.
<deviceid> Is the device serial number of the device or the user-defined device name.
<videoport> Is the video input number, usually set to 0.
<mode> Is the source transform to be used and can be set to:
• video – for video sources
• graphics – for graphics sources
Example: optimization 16 0 video
bandwidth <deviceid> <videoport> <bandwidth>
Changes the target bandwidth value for the specified encoder device.
<deviceid> Is the device serial number of the device or the user-defined device name.
<videoport> Is the video input number, usually set to 0.
<bandwidth> Is the bandwidth value in megabits per second.
Example: bandwidth 16 0 5
Response Messages
All commands (except for userand exit)will generate an OKresponse message if the
command is successfully executed.
Unrecognized commands or invalid command parameters will generate an error message
in the format fail:followed by a brief description of the error, for example fail:
unknown command.
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Data Stream Mode
NOTE: Data stream mode is not supplied as a standard feature on VNC 200 Codec
devices.
In this mode, data received by an encoder is transported to the decoder, along with video
and audio, as part of the source stream. Data transport in this mode is unidirectional and
is capable of being recorded (and played back) by the VNM Recorder.
RS-232
TCP
TCP
RS-232
VN-MATRIX
(encoder)
VN-MATRIX
(decoder)
NETWORK
Data input to the encoder is sent to the
decoder as part of the source stream
along with video and audio
Both units are set to serial server mode
Serial ports on each VN 200 need not share a common baud rate. However, where a
large amount of data is sent from a high speed to a low speed data link, some form of
handshaking or flow control may be required to prevent buffer overflow on the output
device. Standard flow control methods are fully supported.
NOTE: No data will be transported until the decoder connects to the encoder stream.
Setting Up a Serial Data Stream
2. From the Device List page click on the required encoder device.
3. From the Device page click the Peripheralstab to display the following:
Figure 38. Peripherals Page
4. Using the modedrop-down menu select the server option.
5. Change the other settings as required, then click the Save Alltab.
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6. Return to the Device List page and do the same for the decoder device.
NOTES: • No data will be transported until the decoder connects to the encoder
stream.
• The Peripheralstab is NOT present in the VN 200 device type.This is
for bullets after a first bullet level.
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Remote Keyboard
and Mouse
Operation
This section describes the remote keyboard and mouse operation.
Overview
When a PC source is being viewed by a VN 200 decoder, remote keyboard and mouse
control of the source PC can be achieved via the decoder unit.
For remote keyboard and mouse functionality to be possible:
•
•
•
The keyboard and mouse ports of the source PC must be fully connected to the
A keyboard and mouse must be connected to the VN 200 decoder
The decoder must currently be viewing the PC source.
To Initiate a Remote Control Session Using Hot Keys
Using the keyboard attached to the VN 200 decoder, press the <Scroll Lock> key twice,
followed by the <F1> key.
The source monitor will briefly show
MK:Remote in the top left-hand corner…
The display monitor will briefly show
MK:Forward in the top left-hand
corner…
MK:Remote
MK:Forward
NOTE: Local keyboard and mouse control of the source will be disabled. See below
for instructions on regaining local control.
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To Terminate a Remote Control Session Using Hot Keys
Using the keyboard attached to the VN 200 decoder or encoder, press the <Scroll Lock>
key twice, followed by the <F2> key.
Both the source monitor and display monitor will briefly show MK:Local in the top
left-hand corner as shown here.
MK:Local
MK:Local
Mouse and Keyboard Control
1. Login to the web interface (see “System Configuration”).
2. From the Device List page click on the required encoder device.
3. From the Device page click the Peripheralstab to display the following:
Figure 39. Peripherals Page
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Configuring mouse and keyboard control
The Mouse and Keyboard control may be configured using the options provided in the
Peripheralstab. This configuring can be used to modify the way in which the hot keys
(covered on the preceding pages) operate, as described in the following tables.
Source
(Encoder, VNC 200 DVI-I and VNC 200 DVI-I A Only)
Item
Control
Description
Option
MK mode
Enable
Allows remote mouse and keyboard connection from a
decoder.
This is the default state of this control.
Disable
Not used
Blocks remote mouse and keyboard connection from a
decoder.
Effectively disables hot key feature.
MK IP
Not used on the encoder end of the connection.
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Display
(Decoder, VNC 200 DVI-I and VNC 200 DVI-I A or VND 200 DVI-I)
Item
Control
Description
Option
MK mode
Disable
Blocks remote mouse and keyboard to an encoder.
Effectively disables hot key feature.
Keyboard
Normal mouse and keyboard operation
Permits the hot key feature.
This is the default state of this control.
Keyboard &
Keep alive
The mouse and keyboard connection will be reestablished
if it fails, providing that the target encoder is configured
with Mode = Enable.
Works in conjunction with the hot key feature.
Force
The mouse and keyboard connection is made
permanently, independent of the hot key from the local
keyboard (if present).
The connection is made to the currently selected source
(stream), providing that the stream is not multicast or
imported from another control domain.
MK IP
IP address
This takes the value of the IP address of the target
encoder device.
This feature is to be used whenever the target encoder
is configured for multicast or when the source stream is
imported from another control domain.
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Advanced Setup
Procedures
Encoder Set Up
This section provides details for advanced set up options for a VNC 200 encoder.
•
•
•
•
•
Changing video compression —
Managing bandwidth usage —
Changing audio compression —
Advanced Source Setup
For most applications, it is recommended that the source input of a VNC 200 be set to
automode. This enables the device to detect the electrical and timing characteristics of
the input signal and determine the exact source type. It will then invoke the appropriate
input parameters for optimum processing of that source.
This also has the advantage that if the input source changes to another source type (for
example, if the source input is derived from a source switcher) it can change input setup
automatically without any user intervention.
While the automode will work with most standard video and graphics standards, there
are some circumstances (particularly with analog sources) where some additional fine-
tuning may be required. For example, when the source:
•
•
•
Is an RGsB (sync on green) or YPrPb source type
Has Macrovision® copy protection
Does not have a completely standard signal format,
In extreme circumstances, it may even be necessary to create a custom input mode. For
example, when a source:
•
•
Is completely non-standard
Has a poor quality signal
NOTE: The advanced source setup procedures described here are only required
for analog sources. For digital (DVI) sources, the input mode should always
be set to auto.
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Video Setup Page
All advanced source setup is achieved via the Video Setup page. To access the Video Setup
page, follow the numbered steps in the diagram below. Click on the Video Setuptab on
the Configure (videoPort) page for the relevant VNC 200 encoder.`
1
2
3
Figure 40. Video Setup
For most source types it is recommended that you select autofrom the modedrop-down
menu, allowing full auto-detection of the source.
To apply a fixed input mode, select the required mode from the modedrop-down list and
click Updateor the Save Alltab.
NOTE: Selecting a fixed input mode disables the auto-detect function.
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Fine-tuning a Source (Manual Overrides)
The following adjustments are classed as manual overrides. These adjustments are not
saved as part of the current source modeand, once applied, will remain in force until they
are changed.
b
d
a
c
e
Figure 41. Manual Overrides
a Phase (Pixel Clock) — When an analog graphics signal is being digitized, it is
essential that each pixel be sampled as close as possible to its center in order to
obtain a stable value. Sampling too close to a pixel boundary will cause unreliable
data capture and result in noise or artifacts, especially between pixels of significantly
different hue or intensity.
Normally phaseis set to auto. This allows the VNC 200 to automatically determine
the optimum clock phase. If the auto setting proves unsatisfactory for any reason,
try adjusting the phasemanually by selecting a value between +32and -32. Positive
numbers advance the clock phase relative to the start of the active line while negative
numbers retard the clock phase.
TIP: Optimum phase adjustment is easier to establish when a suitable test pattern
is displayed. Typically, this will contain a series of alternating black and white
vertical lines at one pixel intervals.
b Macrovision Defeat — Macrovision copy protection is often applied to
commercially produced videos and DVDs. This adds additional sync-level pulses to the
video waveform and these need to be ignored for proper auto-detection on the
VNC 200.
If you know (or suspect) that your source material has Macrovision encoding, check
the macrovision defeatoption on the Video Setup page.
Leave this parameter unchecked for all other sources. Checking this parameter for
non-Macrovision sources may result in tearing at the top of the image.
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c Blanking (Image Positioning) — In analog video and graphics sources, active
video occupies an area in the middle of the video frame. Around this is a non-active
area used for horizontal and vertical blanking signals.
The VNC 200 normally ignores the blanking area and only digitizes the active video
area. To do this, it needs to know the position of the first active line of video and the
first active pixel on that line. This is controlled by the blankingparameter. This is
normally set to autowhich allows the VNC 200 to calculate the values automatically.
If required, the calculated values for the first line and first pixel can be adjusted by
applying a manual offset. To do this, set the blankingparameter to manualand type
a positive or negative integer value into the pixelsor linesfields as required and
click Update.
NOTE: The offsets are made relative to the current Source Format ‘digFirstPixel’
and ‘digFirstLine’ values.
d Color Space (RGB / YPrPb) — Because of the similarity between analog RGsB (sync
on green) and component YPrPb signals, sources using these transports may not
auto-detect correctly.
RGsB and YPrPB sources have different color spaces and if the wrong setup is applied
the resulting image, although stable, will have a red or green color cast.
Set the color space parameter to either RGB or YPrPb as required.
e Resync — Click to force an auto-detection of the source.
Custom Input Modes
There may be instances when a VN-Matrix device configured as an encoder may not
detect an input source. Examples of this may include:
•
An unrecognized input source that is not defined in the User Source Format of the
encoder.
•
The timing of the input source may deviate from the standard timings for that signal.
In these situations, you will need to create a custom input mode for the new source.
NOTE: Custom input modes are only necessary for analog sources. A VN-Matrix
will automatically create custom input modes for DVI sources based on
their EDID.
Setting the Proper EDID Mode
It will be easier to configure the custom input mode if the EDID mode on the VN-Matrix
encoder is set correctly.
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1
2
3
Figure 42. Setting the EDID Mode
To set the EDID mode, perform the following steps:
1. From the web interface, select the VN-Matrix defined as an encoder (source) device.
2. Click the videoPort0 icon.
3. Click the Configuretab.
4. Select the appropriate EDID mode. In most cases, Transparentwill be the correct
option. This will allow the EDID data of the display to pass through the matrix to the
source PC.
5. Reboot the source PC to ensure it reads the proper EDID selection.
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TIP: The EDID of your monitor has a huge effect on what mode your graphics
card displays. Also, the mode selected on the source PC may not produce the
expected output resolution.
For example, if the EDID of a monitor does not report any widescreen modes,
your graphics card may still allow resolutions such as 1280x960, 1280x768,
or 1280x720.
In this instance, the PC may output 1280x1024, and letterbox the widescreen
image so it is vertically centered on the monitor.
So, while you have selected a mode such as 1280x960 on the PC, VN-Matrix
(and your monitor) will detect this as 1280x1024.
In this situation, if VN-Matrix detects a valid 1280x1024 input mode, creating
a custom input mode is unnecessary, as the mode will likely be ignored by
VN-Matrix since it had already found an internal mode that correctly captured
the source.
Creating a custom input mode
Creating a custom input mode involves four basic steps:
1. Configure a source to display the unrecognized source format and connect it to the
VN-Matrix encoder.
2. Create a custom input mode to match the resolution and timing of the source.
3. Verify that the VN-Matrix encoder can automatically detect (auto-detect) the source
format created in step 2.
4. Fine-tune the custom input mode.
NOTE: Once the custom input mode is created for the VN-Matrix encoder, you
will probably need to create a custom output mode to match it (see
TIP: When creating a custom input mode, it is recommended that a monitor be
connected to the video loop out of the VN-Matrix encoder, as well as the
video out of the VN-Matrix decoder.
It is also recommended that the same monitors be used in the final system
configuration.
Control PC
VN-Matrix Decoder
VN-Matrix Encoder
Network Switch
Figure 43. Input Configuration Example
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NOTE: A stable video signal on the loop output of the VN-Matrix encoder does
not necessarily indicate that the signal is being properly recognized
since a VN-Matrix encoder generates the loop output signal by passing
sync directly from the input connector to the output connectors (a
passthrough), so it is not dependent on any previously stored modes to
create a loop output.
TIP: A word about active image detection
Before creating the custom mode, be aware that VN-Matrix may report
inaccurate values for active horizontal pixels (digHSize) and active vertical lines
(digVSize).
VN-Matrix analyzes the content displayed by the source PC to determine
these values. As a result, if your source is displaying a 100 pixel by 100 pixel
white box against a black background, VN-Matrix may report a digHSize value
of 100, and a digVSize value of 100 as well.
Given this fact, it is good practice to ensure that your PC is displaying a full
image, preferably full white or a moiré pattern, before creating a custom
input mode.
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1
2
3
Figure 44. Custom Input Mode
1. From the web interface, select the VN-Matrix device defined as an encoder
(source) a.
2. Click on the VideoPorticon b.
3. Select the Video Setuptab c.
4. Set phaseto Auto.
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5. Set the macrovision defeatmode to the appropriate setting. If the source has
Macrovision encoding, select the check box; otherwise, leave it deselected.
6. Set color spaceto RGB or YPrPb, based on the input signal type.
NOTE: The above values are not saved as part of the source format; they are
global setting saved for the mode selected in the modedrop-down list. If
autois selected in the modedrop down list, the settings will apply to any
detected mode.
7. Set blankingto auto.
8. Select a source type similar to the desired source type in the namefield of the User
Source Format region. If an existing (incorrect) mode was detected and displayed in
the currentModefield, select that mode from the drop-down list.
9. Click the New Sourcebutton, and enter a name for new source format. Suggested
naming scheme is “Hres x Vres Frequency Timing,” for example, “1360x768
60Hz CVT.”
10. Select the appropriate interlace mode by selecting the Interlacebox for an
interlaced source, or leaving it deselected for a progressive source.
11. If configuring a HD video mode that uses TriSync, set the Trisync Ignoreto 100.
Otherwise, leave at 0.
12. Copy the value in the Device Status monLineCountfield to the User Source Format
LineCountfield.
13. Copy the value in the Device Status monLinePeriodfield to the User Source Format
LinePeriodfield.
14. Enter the pixels per line in the Pixels Per Linefield. If this is unknown, consult a
VESA timing chart, or calculate the value by using the following formula:
Pixels Per Line of Detected Source *(1+(Desired Mode HSize - digHSize)/digHSize.
For example, if the new mode you are creating has a resolution of 1360x768, but
1280x768 was the detected mode, and digFirstPixel was 401, the formula would be:
(digFirstPixel-1+digHsize) * (1 + ((1360 - 1280)/1280)); resulting in:
(401-1+1280) * (1 + 80/1280); resulting in:
1680 * (1 + .0625); resulting in:
1680 * (1.0625) resulting in:
1785
15. Enter the active horizontal resolution in the HSizefield.
16. Enter the active vertical resolution in the VSizefield.
17. Copy the value in the Device Status digFirstPixelfield to the User Source Format
FirstPixelfield.
18. Copy the value in the Device Status digFirstLinefield to the User Source Format
FirstLinefield.
19. Click the Updatebutton. This will copy the User Source Format settings into the User.
Source.Config file of the VN-Matrix device designated as the controller.
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20. Click the Save Sourcebutton; this will save the User.Source.Config file of the VN-
Matrix device designated as the controller.
21. With the modedrop down list still set to auto, the VN-Matrix device should now
select the new user mode in the currentModefield.
22. Put up a moiré pattern and check for any clocking errors. If clocking errors exists,
select the User mode from the Namedrop-down menu and adjust the value in the
PixelsPerLinefield. Each time you enter a new value in the field, you must click the
Updatebutton, click the Save Sourcebutton, and reboot the VN-Matrix controller
and encoder. Repeat this process until the clocking error is gone.
After creating your custom input mode, if the decoder does not find a suitable output
mode, you will need to create a custom output mode (see “Creating a custom
output mode”).
Managing Compression and Bandwidth Settings
The VNC 200 can apply various types of compression to an input source in order to reduce
the volume of source data being streamed across the network.
In addition, various parameters are provided to manage and, if necessary, limit the amount
of data flow to ensure that the available network bandwidth is not exceeded.
The default compression settings applied by the VNC 200 offer a good balance
between the quality of the displayed material and network bandwidth. Where network
bandwidth is restricted, extra compression can be applied. Depending on the source
type and content, significant reduction in streamed data can be achieved with little or no
perceptible affect on image quality.
Alternatively, where network bandwidth is not an issue, compression can be reduced to
provide increased image quality. However, in most cases, there is no real benefit in doing
this due to the highly efficient compression algorithms used by the VNC 200.
Bandwidth (Source) Page
All advanced source setup is achieved via the Bandwidth (source) page. This is accessed by
clicking the Bandwidth Managementbutton on the Configure (videoPort) page for the
relevant VNC 200 encoder.
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Bandwidth Management
This page can be set to show two levels of detail, by selecting the More Detailor Less
Detailbutton.
The above view provides simple control of the Encoder compression settings. Select More
Detailto reveal the view as shown below.
Using the lower control panel (Video Quality), provides for more complex control of the
encoder compression settings.
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Bandwidth Management – Simple Control
Setting the maximum bit rate
The maximum bit rate of the streamed image may be set using the Bandwidth slider.
The Bandwidthslider may be adjusted from unlimited to 1 Mbps. The selected maximum
bit rate is displayed on the right hand side of the slider bar.
When the slider is set to unlimited, no bit rate limit is applied and the actual bit rate will
depend on the complexity (detail and motion) of the source image.
As the slider is adjusted to reduce the maximum bit rate, the encoder will progressively
drop frames in order to limit the instantaneous bit rate. The number of frames dropped
will depend on the source image complexity.
Note that this setting is independent of the Video Quality setting described below.
Setting the video quality
The Video Qualityslider controls the amount of spatial compression that is applied to
the source image.
The Video Qualityslider may be adjusted, in
steps, from high to low video quality.
A high setting will provide the highest image
quality (with the lowest compression).
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A low setting will provide the lowest image
quality (with the highest compression).
The bit rate of the streamed image will be
affected as the Video Qualityslider setting is
adjusted.
Note that a low setting may result in a blocky
looking picture.
Transform setting
The compression system supports two Transformtypes:
• Graphicsis optimized for text and sharp lines, such as is present on most computer
screens.
• Videois optimized for smooth tone changes such as is present in movies and other
video content.
Bandwidth Management – Advanced Control
The controls in this section provide access to the complete set of image quality and bit rate
tools for the VNC 200 encoder.
The controls are divided into two main categories.
•
•
Video Quality
Bandwidth
Some of the controls that are available in the simple control interface previously described
are also present in this section. Where controls are duplicated, the settings will coincide.
Spatial Compression settings
The level of spatial compression is set using the Luminance and Chrominance control. These
controls are normally locked, with an optimal offset of 2 units between them.
A Luminance value of 0 provides the minimum spatial compression; a Luminance value of
10 provides the maximum spatial compression.
If required, the Chrominance compression may be set independently by clearing the Lock
check box.
A spatial compression setting of 4/6 will provide visually lossless compression.
NOTE: By default, the luma chroma offset is set to 2 whenever the simple (standard)
management scheme is selected.
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Temporal compression setting
Temporal compression may be applied by selecting the Temporalcheck box. By default, this
option should always be selected.
Temporal compression causes data to be transferred only when a change occurs between
frames.
Quality Control settings
The Thresholdsetting modifies the detection point of the temporal compression algorithm.
A value of 0 results in all changes between frames being sent.
As the threshold value is increased, only changes above a certain level are sent, thus reducing
the bit rate. This control is used to compensate for image sources that have a level of noise
in them. In general, there is always a certain amount of noise in any source that is produced
by an analog method. By applying a threshold, this noise can effectively be ignored by the
PURE3 compression engine, resulting in a lower transmitted bit rate.
•
A setting of 0 is suitable for DVI computer generated sources. Sources with more
noise or video-type motion should use a setting between 1 and 4. Camera sources
should always use a value greater than 0.
•
Motion compression can be modified between 0 and 15, where 0 is no additional
motion compression and 15 is full motion compression. When enabled, where
motion is detected on the screen that area is compressed more heavily. This reduces
bandwidth at a time when the eye cannot perceive significant detail. When the
motion stops, the screen area is resent at the standard resolution preserving the screen
integrity.
Chromacontrols whether the temporal algorithm should consider changes in the color or
chrominance of the image. Enabling chroma gives better results on digital simulation type
sources, however chroma thresholds can increase the transmit bandwidth by up to 20%
so it should be disabled on bandwidth sensitive systems. It is usually not required on
video/camera type sources.
RefreshRatecontrols how frequently the non-changing parts of the screen are updated
in temporal compression mode. This is useful when connecting new displays to a
temporally encoded source and to fill in gaps in the data when using a lossy network
transport such as RTP. A value of 1 refreshes the screen in one second, a value of 0.1
refreshes the screen 10 times per second. A value of 0 disables the refresh.
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Monitoring the bit rate
The bit rate of the streamed image may be monitored at the Streams information area of
the Bandwidth Management page.
The Streamslist shows network statistics for current RTP streams. For each RTP stream,
three values are presented: the Transmit Bandwidth (in Megabits-per-second), the
packet Drop Percentage and the Round Trip delay Time (RTT — in microseconds). The
Tramsmit Bandwidth is the true bandwidth of the source measured over the last second.
All of this data may not have arrived at the destination if the link shows packets are
being dropped. Most networks show a small amount of dropped traffic, but when this
rises above 5% it indicates the capacity of the link has probably been exceeded. A lightly
loaded network will show a fairly constant RTT. When this value starts to rise or fluctuates
excessively it indicates the network is congested. Usually when network capacity has just
been exceeded, the RTT will rise to a large value just before packets start being dropped.
The link latency will rise as RTT increases.
Bandwidth Management Settings
The VNC 200 can apply various control modes that allow the bit rate to be managed.
These control modes are selected in the Modedrop-down box as described below. The
Target bandwidth (Mbps)field and the Frame Drop Percentagefields are also
described.
•
•
None – No bandwidth management policy will be followed apart from the underlying
compression settings.
Manual Frame Drop – Allows the user to specify the precise fraction of frames
to drop. This doesn’t manage the bandwidth at a fixed level, but does result in a
smoother update given rapidly changing video content types. The percentage of
frames to discard is entered into the Frame Drop Percentagefield. For example, a
value of 95 (95%) will discard 19 out of every 20 frames and will therefore reduce a
60 fps video signal to 3 fps.
NOTE: Slowing the frame rate to around 1 fps may cause the decoder to behave
as if the source stream has been interrupted and it may start flashing up
the no source splash screen.
•
•
Shared Flowrate – the total network video traffic for all streams of this source is
limited to the flowrate (in Mbps) specified in the Target Bandwidthfield. Frames are
dropped if the instantaneous data rate is higher than the flowrate.
Peak Flowrate – the network video-traffic for each stream of this source is limited
to the flowrate (in Mbps) specified in the Target Bandwidthfield. Frames are
dropped if the instantaneous data rate is higher than the flowrate.
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•
•
CBR-F – The compression settings are dynamically modified to maintain the
transmit bandwidth at the specified rate. Additional refresh is added to maintain the
bandwidth as required. Filter averages bit rate over a period of one second.
PBR-F – The compression settings are dynamically modified to limit the transmit
bandwidth to the specified rate or below. The specified compression setting is used as
the minimum compression value. Filter averages bit rate over a period of one second.
•
•
CBR-DFM – Same as CBR-F except frames are dropped when a larger reduction than
can be achieved with just compression settings, is required.
PBR-DFM – Same as PBR-F except frames are dropped when a larger reduction than
can be achieved with just compression settings, is required.
Flowrate control modes limit the instantaneous traffic on the network and are useful
where the network pipe between source and display has limited bandwidth and
drops traffic when this rate is exceeded. Non-flowrate control modes limit the average
bandwidth, but the instantaneous bandwidth can be high. Non-flowrate control modes
are best used on a LAN where the user does not wish the VNC 200 to consume excess
bandwidth.
NOTE: The actual bandwidth usage for Unicast transports will be multiplied by the
number of data stream destinations. For example, if the encoder has two
Unicast RTP connections plus a TCP connection, it will be sending three data
streams across the network.
Audio Compression
The S/PDIF digital data bus can carry two types of data:
•
•
2-channel (stereo) uncompressed audio, or
Encoded digital data (typically AC-3 (Dolby Digital) format).
The VNC 200 supports limited compression of S/PDIF audio sources. This is controlled by
the Compressionsetting on the Configure (audioPort) page. The following compression
options are available:
Compression
2 Channel Audio Source
AC-3 Audio Source
No compression 24 bit native data
(2975 kBps)
24 bit native data
(2975 kBps)
Compress 1
Compress 2
Compress 4
16 bit data, full sample rate
(1517 kBps)
16 bit data, zeros run length encoded
(430 kBps)
16 bit data, 1/2 sample rate
(784 kBps)
16 bit data, zeros run length encoded
(430 kBps)
16 bit data, 1/4 sample rate
(418 kBps)
16 bit data, zeros run length encoded
(430 kBps)
NOTE: The native uncompressed setting passes the full 24 bit payload plus the
four S/PDIF control bits updating on a continuous frame basis. Other modes
only transmit 16 bit data and reduce the S/PDIF control bits update rate to
once per second.
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Decoder Set Up
This section provides details for advanced set up options for a VNC 200 decoder.
•
•
•
Setting Optimum Playback Delay
During playback of a source stream, data is transported from a VNC 200 encoder across
the network and into a buffer on the VNC 200 decoder. Data is then read from the buffer
and output to the display. Because of the inherent time delay (latency) for data to be
transported across the network, it is not possible for the decoder to display the source at
exactly the same time as it is being encoded.
For this reason, the VNC 200 decoder imposes a playback delay to account for the total
data transit time. It also ensures smooth playback of a source stream by equalizing the
flow of data into and out of the decoder buffer.
Setting the playback delay too small may cause the buffer to “underrun” (data is read
from the buffer quicker than it can be written). This will result in the playback image
jumping as network loading changes.
Setting the playback delay too large will cause excessive image latency and may,
particularly on high bandwidth datastreams, cause the buffer to “overflow” (data is
written to the buffer quicker than it can be read). This will result in “jumpy” screen
updates and screen flashing.
NOTE: When a source has both a video and audio stream, these are treated
separately and can be subject to different processing delays. In many
applications, this will not present any noticeable issues. However, with some
source material, especially where correct lip-sync must be maintained, it may
be necessary to set different values for the video and audio playback delay.
The default playback delay is 0.1 seconds which will be suitable for most applications and
is the minimum recommendation for a 30 Hz source (or a 60 Hz interlace source). For a
60 Hz frame rate source, the minimum recommended playback delay is 0.05 seconds.
Valid playback delay settings can be determined by setting values then checking the
Pipeline Status Meter.
Bandwidth monitoring page
Playback delay is adjusted via the Bandwidth page for the VNC 200 decoder. This is
accessed via the video or audio hyperlink on the Display page:
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1
2
3
Figure 46. Bandwidth Monitoring Page
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Adjusting the Playback Delay
a Open the video Bandwidth page for the video object.
b Enter a value into the Playback Delayfield and click the Updatebutton.
c Check the Pipeline Statusindicator to ensure that the Playback Delayis at a
valid level:
Setting is valid and should give a stable image.
Playback delay is too small. This will result in the playback image jumping
as network loading changes.
Playback delay is too large. This will increase the image latency and may
result in internal buffer overflow on high bandwidth data streams. This
will cause a jumpy and flashing screen.
d If the source also has an audio stream, open the audio Bandwidth page for the audio
object and adjust the playback delay in the same way.
Tip:
To achieve lip-sync between video and audio streams, adjust the video
playback delay first to obtain a normal meter reading, and then adjust
audio playback delay as required.
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Custom Output Modes
The Output Format Management screen allows the user to create custom video formats
for displaying decoded video data streams.
1
2
3
Figure 47. Custom Output Mode
One of the issues that has been encountered with some graphics sources when used in
conjunction with VN-Matrix encode and decode systems is that the encoder will often
produce a loop through image and state that it has detected a valid input mode, but the
decoder will output a display splash screen that states “No Matching Output Mode.”
This following section describes how to create a custom output mode that will be
automatically selected by the decoder when it sees the corresponding input mode from
the encoder.
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Creating a CVT output mode
This procedure will require the user to access the VN-Matrix decoder unit over a Telnet
connection and access the VN-Matrix web GUI using a browser window.
1. Ensure that the graphics source that is causing issues is connected to the VN-Matrix
encoder, and that the encoder has detected the correct mode for that source.
NOTE: Make sure that the source is displaying an image that occupies the entire
desktop, such as a window that has been maximized.
2. Verify that an image is present on the loop-through output of the encoder.
3. Connect a PC to the VN-Matrix network and start the VN-Matrix web GUI. See
4. From the web GUI, select the encoder. Click on the videoPort0link in the
Configuration region, and then select the Video Setuptab.
5. When the Video Setup page is displayed, make a note of the horizontal resolution
(digHSize) and vertical resolution (digVSize) that is displayed in the Device Status
section of the page. These will be used as the basis for the new output mode.
6. From the web GUI, select the decoder that is displaying the “No Matching Output
Mode” screen, and click the display0link in the Configuration region. From this
page select the Formattab.
7. Once the Format tab is displayed, click the 1`button.
8. Enter a name for the mode that you are trying to build. It is a good idea to use the
resolution, refresh rate and PC type (such as Mac, Linux, etc.) in the title. In this case,
we will use the name “1280x960_60Hz_Dell.” Select OK.
9. Now using the Name drop-down, select the mode 1280x960_60Hz_Dell.
10. In the Active Pixelsfield, enter the horizontal resolution that was noted in step 5.
11. In the Active Linesfield, enter the vertical resolution that was noted in step 5.
12. In the Frame Ratefield, enter the refresh rate of the source.
13. Select the CVTbutton. The VN-Matrix unit will now attempt to build a mode using
the standard CVT timing calculator. The remaining values on the screen will update
automatically.
14. Select Updateand then select Save Formats.
15. From the source machine that is supplying the encoder, change the resolution and
allow the encoder to display the image on the loop out. This will force the VN-Matrix
to change both input and output modes.
16. Change back to the original resolution.
If the image appears OK on the decoder, the new mode that you have just created is
working correctly. The mode creation is now complete and you may stop here.
If the decoder still displays the “No Matching Output Mode” splash screen, the mode that
has been created is not a close enough match to the source to be automatically selected.
Continue to the next section of this document to resolve this.
Creating a custom output mode
If the CVT output mode you created in the previous section is not automatically selected
when choosing the source in question, you will need to create a new mode and manually
enter specific timing values for the mode.
To do this, perform the following steps:
1. Select the decoder in the Device List tab of the web GUI.
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2. Select the Devicetab.
3. Click on the display0link in the Configuration region.
4. Use the Output Formatdrop-down list to select the mode you created in the
previous section.
5. Select Update. The source should now be displayed correctly on the decoder output.
The mode must now be modified so that it can be detected automatically when the source
is connected to the encoder.
To do this, you will:
1. Retrieve timing information using a telnet session.
2. Enter the observed timing values in the VN-Matrix web GUI.
Opening a telnet session on port 4002 with a VN-Matrix decoder
To open a telnet session with the VN-MATRIX decoder, perform the following procedure:
1. From the Windows taskbar, open a terminal window and then type telnet xxx.
xxx.xxx.xxx 4002where xxx.xxx.xxx.xxxrepresents the IP address of the
VN-Matrix decoder. Then, press <Enter>.
Source information will now continually be streamed to the telnet window. Although
the numeric values may be different, you will see a line similar to the one shown
below:
resolution update message: 1280,960,60,1000,1800,fbbd,108001440,1:
The first five numeric values are interpreted as:
Parameter
1280
Meaning
Active area width of current source (in pixels)
Active area height of current source (in pixels)
Frame rate of current source, in Hz
Total line count of current source
Total pixels per line of current source
960
60
1000
1800
2. Write down the values that are reported for:
•
•
•
•
•
Active area width
Active area height
Frame rate
Total line count
Total pixels
These values will be required in the next section.
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Entering the timing values in the VN-Matrix web GUI
1. Return to the VN-Matrix GUI and navigate to the Formattab of the decoder. In the
Namedrop-down dialog ensure that the mode that you have just built is selected and
click Update.
Figure 48. User Output Format
2. Calculate the correct horizontal values for the mode that we are using. We will
assume that the Horizontal Left Border, Horizontal Right Border,
Horizontal Front Porch, and Horizontal Sync Widthare already correct.
3. Enter the Active Pixels, Frame Rate, and Total Pixelsthat were returned in
the telnet session.
4. Calculate the Horizontal Back Porchvalue. This value is calculated with the
formula:
Total Pixels – (Active Pixels in width + Horizontal Left Border + Horizontal Right Border
+ Horizontal Front Porch + Horizontal Sync Width)
In the above example, this equates to:
1800 – (1280 + 0 + 0 + 80 + 128) = 312
5. Enter your value into the Horizontal Back Porchfield.
6. We must now calculate the correct vertical values for the mode. We will assume that
the Vertical Top Border, Vertical Bottom Border, Vertical Front Porch,
and Vertical Sync Widthare already correct.
7. Enter the Active Linesand Total Linesthat were returned in the telnet session.
8. Calculate the Vertical Back Porch. This value is calculated with the formula:
Total Lines – (Active Pixels in height + Vertical Top Border + Vertical Bottom Border +
Vertical Front Porch + Vertical Sync Width)
In the above example, this equates to:
1000 – (960 + 0 + 0 + 3 + 4) = 33
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9. Enter your value in the Vertical Back Porchfield.
10. The final element is to calculate the Pixel Clock Frequency. This is calculated with
the formula:
Total Lines x Total Pixels x Frame Rate
In the above example, this equates to:
1000 x 1800 x 60 = 108000000
11. Enter your value in the Pixel Clock Frequencyfield.
12. Click Update, and then click Save Formats. The new mode should now be an exact
match for the connected source.
13. To test the new mode select the Displaytab on the decoder, and ensure that Autois
selected in the Output Formatselector
14. Switch the resolution on the source to a different resolution and then switch it back
again. The mode should be displayed automatically.
Controller Configuration
The unit that has been designated as the controller for the system is responsible for
all communications to the VNC 200 devices that are part of that system. In addition,
all system specific information is held on the system controller. Each time a system is
powered, each device communicates with the controller to obtain information about its
status within the system as a whole.
The controller is the device that serves the web page for the browser to provide user
control.
Changing User Login Passwords
2. From the Device List page click the Accountstab.
The following page will appear:
Figure 49. Accounts Page
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The VNC 200 has two user accounts:
Admin Allows full read and write access to all setup parameters. The default user
name and password for this account is admin, admin.
Public
Allows read only access to setup parameters. The default user name and
password for this account is public, public.
3. Enter the Current Passwordfor the user account you want to change.
4. Then enter the new password in both the New Passwordand Confirmfields.
NOTE: The password can include letters, numbers, and the underscore character,
and is case sensitive.
5. Click the Updatebutton to save the change. The new password will be required the
next time you login.
Note: The Recorder GUI Account (recgui) is provided for specific system use. It
is not required for normal operation and is not covered in this user guide.
Controller Licensing
Each VNC 200 device is supplied with a default level of functionality which can be
upgraded by obtaining a special license key from Extron. Device licensing is discussed here.
In addition to the individual device licenses, the system itself holds a license on the unit
that has been designated as the controller for the system. This license defines which
VNC 200 devices are permitted to run on the system.
Currently, the controller license is used to license (permit) the correct number of seats
when using the VNM Software Decoder.
A license key contains two elements – a structure and a checksum. New licenses may be
obtained from your Extron dealer when they are required.
Upgrading Device Firmware
Extron may issue firmware upgrades for the VNC 200 in order to make new functionality
available. Details of the latest firmware release will be published on our website.
Upgrades are supplied in a single file. An example filename is upgrade_ver3.3c.tar where
ver3.3c is the version number. Before you start, you will need to copy the upgrade file on
to the computer that you use to access the VNC 200 controller.
The update process is split into the following stages:
Stage
Function Summary
Performed On
UPLOAD
Copy the upgrade file from the control PC
The VNC 200 controller
to a temporary storage area on the VNC 200 only
controller
PREPARE
Unpack and copy the new firmware (from the Each VNC 200 device
controller) into the VNC 200 alternate flash
memory.
including the controller
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ACTIVATE Reboot the VNC 200 to start using the new
firmware. This is a temporary mode that
allows you to test the new firmware. If you
encounter any problems, you can”back out”
of this mode and return to the previous
firmware version.
Each VNC 200 device
including the controller
COMMIT
Reboot the VNC 200 to start using the new
firmware permanently.
Each VNC 200 device
including the controller
All stages of the upgrade process are carried out using the web interface. It is
recommended that all VNC 200 units in the same system are upgraded to the same
firmware version to ensure full compatibility.
NOTES:
• Performing the ACTIVATE function on the controller will cause the device to
reboot and, as a result, the upgrade file (in the temporary storage area) will
be erased. It is recommended, therefore, that you PREPARE all devices first,
after which the upgrade file will no longer be needed. Then perform the
ACTIVATE function on each device, starting with the controller.
• The ACTIVATE function must be performed on the controller device first,
such that the new firmware is in control of upgrading the remaining devices.
• When performing ACTIVATE or COMMIT on the controller, the device will
reboot.
This will cause temporary loss of the web interface, since this is provided by
the controller.
• Wait for 30 seconds to allow the device time to reboot, then refresh the
browser.
To upload the firmware file to the VNC 200 controller
2. From the Device List page click on the VNC 200 controller device.
3. From the Device page click the Upgradetab. The Upgrade page will appear:
1
2
a This is the existing firmware version.
b This is the version you will be upgrading to.
4. Click the Browsebutton to navigate to the required upgrade file, or type the path and
filename directly into the field provided.
5. Click the Uploadbutton to begin uploading the file to the VNC 200 controller. This
may take a few minutes.
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Device Firmware”) starting with the controller unit.
To install the new firmware into each VNC 200 unit
NOTE: You must upgrade the VNC 200 controller first. Please note, however, that
once you go past the READY TO ACTIVATE stage, the unit will reboot and the
upgrade file will be erased from the controller. It is recommended, therefore,
that you get ALL devices to the READY TO ACTIVATE stage before completing
the controller upgrade, otherwise you will need to upload the file again (as
described in the previous section).
1. From the Device List page, click on the VNC 200 unit that you want to upgrade.
2. From the Device page click the Upgradetab. The Upgrade page will appear.
3. Click the Select Firmware Versiondrop-down menu and choose the new
firmware file you want to install. Usually there will only be one file listed (the file that
you uploaded using the procedure in the previous section).
The remainder of the installation procedure is achieved using the forwardand (if
necessary) reversebuttons, to move the installation between the various stages. The
current stage/status is indicated by the Device Upgrade Statusfield.
The process allows you to temporarily install and test the new firmware and, if everything
is OK, you can then permanently install (commit) the new firmware. Up until the last stage
it is possible to return to the existing firmware version.
The process is summarized in the following diagram:
Figure 50. Firmware Upgrade Page
4. Click the forwardbutton. The Device Upgrade Statusfield will show PREPARE
and percentage progress. This stage may last a few minutes.
TIP: The chosen firmware version is confirmed in the Upgrade Versionfield.
5. When READY TO ACTIVATEappears, click the forwardbutton again.
6. The unit will then reboot. Once rebooted the Device Upgrade Status field will show
READY TO COMMITand the VNC 200 will be using the new firmware. Test for correct
operation.
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7. If everything is working correctly, click forwardagain to permanently install the new
firmware. The Device Upgrade Statusfield will show COMMITTINGand percentage
progress. This stage may last a few minutes.
NOTE: If you experience any problems, click reverseto return to the previous
stage.
8. When the Device Upgrade Statusfield returns to WAITthe unit is ready for use.
Changing a Device Licence
Each VNC 200 unit is supplied with a default level of functionality which can be upgraded
by obtaining a special license key from Extron.
A license key contains two elements – a “structure” and a “checksum”. These are entered
using the License page which is accessed via the license managementbutton on the
Device page:
1
2
Figure 51.
Changing a Device License
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Alarms and SNMP
This section describes the following:
•
•
•
Overview – SNMP
Overview – Alarms
The VN-Matrix system is configured to generate alarms for error conditions. A list of these
error conditions and their meanings are presented on the following pages.
Alarms can be monitored at a number of locations throughout the web GUI
•
•
In the Alarms page
•
In the list immediately below the Filter Settings box. This details the alarm
conditions that are currently active on the system.
In the Alarm Logs page
•
In the list immediately below the Filter Settings box. This provides a historical log
of when an alarm condition was raised and cleared.
•
•
In the Device List page
Where a traffic light system is used to represent the status of a device.
In the top left hand corner of each page in the web GUI.
Where the device status and system status is displayed.
•
•
In addition the red LED located on the front panel of the VN-Matrix device will illuminate
whenever a critical alarm is triggered.
Alarm conditions, once triggered, will remain active until the error that caused it has
cleared and then for an additional five seconds.
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Alarms Page
The Alarms screen enables a user to define and monitor system alarms.
Figure 52. Alarms Page
Filter Settings
The Filter settings section allows the default settings for each alarm type to be modified.
•
•
•
Alarm Type — Select the particular alarm that is to have its default setting changed.
Alarm Source — Select the device on which the alarm is to change.
Alarm Severity — Set the alarm severity. Each alarm condition has a default
severity which may be overwritten using the filter controls. Note that the default
setting is listed in this drop-down list is independent of any changes that have been
made to the alarm severity.
•
Alarm Reporting — Set the alarm to be either “reporting” or “not reporting”.
Each alarm condition has a default reporting setting. Note that the default setting is
listed in this drop-down menu list is independent of any changes that have been made
to the alarm reporting.
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Alarm Type
This drop-down menu lists the available alarm error conditions for all units. Alarm error
conditions are divided into two categories:
•
•
Alarm errors that occur on an encoder
Alarm errors that occur on a decoder
In addition, there is one alarm error that only occurs on the device that is configured as
the system controller.
Alarm Source
Alarm filters may be set for either a single, specific unit or for all VN 200 devices in the
system.
Alarm Severity
Alarms may be set to one of three severities.
Alarm Severity
Description
Critical
When triggered, a critical alarm will illuminate the red LED on the
front panel of the affected unit. In addition, the normally open
contacts of the relay accessed via the Comm 2 connector will be
closed.
The traffic light indicator for the device (Device List) will be shown
in red.
Warning
None
When triggered, a warning alarm will result in the traffic light
indicator for the device (Device List) showing in amber.
A setting of None effectively filters the alarm condition. The alarm
will still appear in the alarms list, but it will not affect any colored
indicators.
Alarm Reporting
An alarm condition may be either reporting or not reporting.
A reporting condition will cause an SNMP trap to be sent to an SNMP client whenever that
alarm condition is triggered.
Applying Alarm Filter Settings
Changes made to the Filter Settings may be applied from the Apply Filter Change
button.
Changes made will be lost after a power down unless the Save Alltab is used to make
these changes permanent.
Alarm List
The Alarm list provides information on all alarm events that are currently active. The list is
refreshed each time the Alarmstab is selected.
Alarm events that are listed may be sorted by Type, Raise Time, and Severity. Position the
mouse pointer over the required sorting heading (Type, Raise Time, or Severity) and left
click to change the list order. The list will be refreshed each time the sorting criteria is
applied.
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Alarm Logs
A historical list of the last 200 alarm events is provided in the Alarm Logspage.
The log provides data on when an alarm error condition was raised and cleared. Each
event is paired in the log so a raise and clear event is listed together.
The log holds a historical record of the last 200 alarm events. When more than 200 events
occur, the oldest event is deleted from the log.
Alarm events that are listed in the log may be sorted by Type, Raise Time and Severity.
Position the mouse pointer over the required sorting heading (Type, Raise Time, or
Severity) and left click to change the list order. The list will be refreshed each time the
sorting criteria is applied.
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Alarm Type Description - Encoder
Alarm Type
Description
Action
Default Settings
No source
No source present at the input.
Check input connections; Critical, reporting
is there an output on the
loop through connector?
Bad source syncs
Source is present, but
unrecognized ue to bad sync mea-
surement.
Critical, reporting
No SDI source lock
Applicable to VN 300, ignore for
VN 200.
Critical, reporting
Critical, reporting
Critical, reporting
Unsupported SDI
mode
Applicable to VN 300, ignore for
VN 200.
Unsupported mode
Source is present, mode not
supported.
Bad source
Critical, reporting
Warning, reporting
Analog phasing
error
Hardware encoding
error
The hardware is unable to encode
the input signal.
Critical, reporting
Critical, reporting
Unsupported audio
source
Data rate overload
The compressed data rate is too
high.
Increase the compression Critical, reporting
or reduce the required bit
rate
Network overload
The network is dropping too many
packets.
Warning, reporting
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Alarm Type Description - Decoder
Alarm Type
Description
Action
Default settings
No decoder video
data
Indicates that there is a valid
connection, no video data
present. Usually accompanied by
“no source data stream” message
in the web interface.
Warning, reporting
No decoder mode
No source report
Recovered audio
No matching decoder mode for
the incoming stream.
Warning, reporting
Warning, reporting
Unable to detect the format of
the received data stream.
Warning, reporting
Warning, reporting
No decoder audio
data
Bad audio at decoder
Bad audio PLL
Warning, reporting
Warning, reporting
Warning, reporting
Video network
packets dropped
Excessive network packet loss has
occurred.
Decoder buffer
overflow
The incoming data rate is high;
reduce the pipeline delay.
Warning, reporting
Warning, reporting
Warning, reporting
Warning, reporting
Warning, reporting
Warning, reporting
Decoder buffer
underflow
The incoming data rate is too low;
increase the pipeline delay.
Bad video PLL
The decoder cannot synchronize
to the video data.
No decoder ANC data The decoder is not receiving any
embedded audio (ancillary) data.
Missing ANC at
decoder
The Decoder is receiving poor
quality ANC data.
Recovered ANC
Error correction has recovered
corrupted / missing ANC.
Alarm Type description - Controller
Alarm Type
Description
Action
Default Settings
Bad device
The controller is unable to contact Check the device in
the specified device. The device is question.
Critical, reporting
not available or has failed.
Note that this alarm is only
generated on the controller.
Is power applied?
Is the network cable /
connection present?
Has the unit been
removed?
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Overview – SNMP
The VN 200 device has the ability to report alarm events via an SNMP trap, providing
simple integration with network management systems (NMS).
When communicating using SNMP, the VN 200 complies with the requirements of
SNMPv3.
When generating SNMP traps, the VN 200 complies with the requirements of SNMPv1 and
SNMPv2c.
Using SNMP - Password
The SNMP password is the same as the administrator password. By default this is set to
admin.
Note: It is necessary to enter the administrator password in the accounts page before
SNMP can be used. This process must be carried out for each of the following
circumstances.
• When first using the system
• After a firmware upgrade to the system
•
•
When first using the system
After a firmware upgrade to the system
A password for SNMPv3 is required to be eight characters long. If the administrator
password is less than eight characters in length then the remaining characters are packed
as follows
•
admin becomes adminadm
If the administrator password is longer than eight characters then the value is
concatenated
•
concatenate becomes concaten
SNMP Trap Version
The VN 200 supports both version 1 and version 2 SNMP traps (SNMPv1 and SNMPv2c).
SNMP Community
The SNMP Communityvalue acts as a password. It is used to authenticate messages
between the VN 200 system and the NMS. By default, the Community string is set to
public. The Community string must match that in use by the NMS; if not, then it may not
be possible to manage the VN 200 device.
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SNMP Trap Destinations
The Filter Settings dialogue in the Alarm Logspage is used to add and remove
destination IP addresses for NMS servers.
The IP address of the NMS should be entered in the Create Trap Destinationbox.
Multiple destinations may be added.
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IP Addressing
What is an IP Address?
A full explanation of IP addressing is beyond the scope of this user guide. However, the
following details will provide you with enough information to get started.
An IP address is a 32-bit binary number that is used to identify each device on an Ethernet
network. This number is usually represented by four decimal numbers (each in the range
0 to 255) separated by dots, for example, 198.123.34.240. This is called “dotted decimal
notation”.
An IP address is divided into two parts:
•
•
The network identifier
The host identifier
On a given network each address must have the same network identifier value but have a
unique host identifier. There are, therefore, different ‘classes’ of address which define:
•
•
the range of valid addresses, and
which parts of the address are used for the network and host identifiers.
The most common IP Address classes are:
Class Name
Class A
Valid Address Range
Identifier Arrangement*
NNN.HHH.HHH.HHH
NNN.NNN.HHH.HHH
NNN.NNN.NNN.HHH
0.0.0.1 to 127.255.255.254
128.0.0.1 to 191.255.255.254
192.0.0.1 to 223.255.255.254
Class B
Class C
*Where: NNN = Network identifier
HHH = Host identifier
Private and Public Address Ranges
Within each of the above classes are a range of addresses designated as “private”
addresses. These are addresses which should only be used on private local networks and
intranets and cannot be accessed directly from the Internet.
10.0.0.0 – 10.255.255.255
172.16.0.0 – 172.31.255.255
169.254.0.0 –169.254.255.255
192.168.0.0 – 192.168.255.255
All other addresses outside these ranges are considered “public” addresses.
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Multicast Address Range
A further range of addresses is available for multicast usage:
224.0.0.0 – 239.255.255.255
These addresses (also known as Class D addresses) are used to allow several devices to be
part of the same multicast group. Each device in the group has the same multicast address
and can effectively send data to all other devices in the same group simultaneously.
Choosing IP Addresses
If your VN 200 units are connected via their own independent network, then follow the
guidelines below for choosing your IP addresses.
However, if you intend connecting your VN 200 units to an existing network, you will need
to advise the network administrator and ask them to allocate suitable addresses to you.
On an independent network, you can (in theory) use just about any addresses you wish.
However, it is generally recommended that you use the Class C format (from 192.0.0.1 up
to 223.255.255.253).
Remember that there are two rules for choosing IP addresses:
•
•
The network identifier must be the same for each address
The host identifier must be unique for each address
Applying these rules to Class C addresses, it can be seen that the first three decimal values
of your IP addresses must all be the same, while the last value is used to uniquely identify
each device.
The following is an example of a valid Class C addressing scheme:
Device
IP Address
Device 1
Device 2
Device 3
208.132.180.41
208.132.180.42
208.132.180.43
NOTE: The host identifiers (41, 42, and 43 in the above example) need not be
sequential or in any particular order. However, it is recommended that you
group the numbers for simplicity.
The following is an example of an invalid Class C addressing scheme:
Device
IP Address
Device 1
Device 2
Device 3
208.132.180.41
192.157.180.42
209.100.123.43
NOTE: These are invalid because the network identifier for each address is not the
same, even though each IP address is unique.
You can use the Ping command from your computer to check that a device at a particular
address is responding correctly (see “Understanding Network Performance”).
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Subnet Mask
The subnet mask is another 32-bit binary number that is used to “mask” certain bits of
the IP address. This provides a method of extending the number of network options for a
given IP address. It works by allowing part of the host identifier to be used as a “subnet
identifier”.
It is important that you set the correct value for the subnet mask. The basic values depend
on the class of IP address being used:
Class Name
Class A
Subnet Mask
255.0.0.0
Class B
255.255.0.0
255.255.255.0
Class C
Using the Ping Utility to Test Communications
You can test for communications between a Windows computer and another device on
the same network by using the Windows Ping utility.
1. From the Windows desktop of the computer, click on the Startbutton, and select
Run. The Rundialog box will appear.
2. In the Openbox, type in the following command:
ping xxx.xxx.xxx.xxx –t
NOTE: Where xxx.xxx.xxx.xxx is the IP address of the VNC 200 device that you
want to test.
3. Click on the OKbutton or press the <Enter> key.
A text window will appear showing a series of response messages; these are explained
below.
4. To stop the ping utility, press <Ctrl + C> on the keyboard.
HINT:
The Ping utility can also be run from the command line of the serial
Response Messages
When you run the Ping utility, it will display a series of response messages, which you can
use to determine the state of the communications link. For example, if you have “pinged”
a device with the address 208.132.180.48, you should get a message similar to the
following:
Reply from 208.132.180.48: bytes=32 time=2ms TTL=32
This is the correct response which indicates that the device at the specified address
is communicating correctly. Note that the response time value may vary according to
network traffic.
If you get the message...
Request timed out.
...this indicates that there has been no response from the specified address. Either the
processor is not receiving data from the computer or not sending data back. Check that
the device is powered up and set to the same address that you “pinged”. Also, check
that you are using the correct type of connecting cables (for example, straight through or
crossover) and that they are not damaged or faulty.
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If you get the message...
Reply from 208.132.180.48: Destination host unreachable.
…this indicates that the IP address of the computer is not in the same class (or subnet) as
that of the device being “pinged”. Check that the subNet mask on both the computer
IP addresses are within the correct range for the chosen class and are compatible (see
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Understanding
Network
Performance
This section describes features of the network.
Network Characteristics
There are a number of characteristics of networks that have to be taken into account
when transmitting image data.
When a conventional analog or digital video signal is sent from a source to a display, the
image is transmitted in real time with negligible delay (or “latency”). The signal itself is
continuous with (even in the case of a digital signal) very little redundancy in the signal
(the great majority of the signal is image data, so little bandwidth is “wasted”). In general,
the signal is not subject to any unpredictable degradation.
Data Packets/Frames
If a digital image stream is sent across a network, it must be “packetized.” The network
itself is indifferent to the nature of data, and simply treats all digital information in a
standard way. Before it can be sent over a network, the data must be reformatted into
packets called “IEEE MAC frames”.
Synchronizes internal
clock generator
Indicates type of payload
Preamble Destination Source
Length
of
Data
IEEE802.2 Header
Optionally with
snap extensions
Data
46 - 1500 bytes
at 10 MHz
C
R
C
Address
Address
Number
of bytes
8
6
6
2
3 or 8
Variable
4
Figure 53. IEEE802.3 Media Access Control frame
Some points arise from this:
•
The data carried within a frame/packet is limited to the MTU (maximum transmission
unit) of the network, typically 1500 bytes.
•
The data must include any additional overhead arising from the protocol being used
(UDP or TCP/IP).
The MTU is the largest physical packet size (measured in bytes) that a network can
transmit. Any messages larger than the MTU are divided into smaller packets before being
sent.
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The introduction of gigabit (1 Gb/s) Ethernet has allowed the introduction of “Jumbo”
frames with more than 1500 data bytes. Clearly the overhead involved by limiting the
number of bytes to 1500 is considerable, and using jumbo frames makes more efficient
use of the network. However, the following should be noted:
•
•
•
•
Many real world networks only operate at 100Mb/s at local level and these cannot
accept jumbo frames.
Many gigabit networks are not configured to accept jumbo frames. Only networks so
configured can use them.
The maximum data size of a jumbo frame is 9000 bytes and typically jumbo frames
carry 8000 data bytes.
While network efficiency goes up with larger frames, the effect of a lost frame or
packet is more serious.
Nodes, Switchers, and Routers
An Ethernet Local Area Network (LAN) will have a number of nodes and, in principle, all
nodes can communicate with each other. The principle used is “Carrier Sense, Multiple
Access/Collision Detection” or CSMA/CD. This means that when not transmitting, all
nodes are listening. When a node transmits, no other node attempts transmission.
However, signal speed limits mean that a “collision” is possible. Such collisions are
detected and the competing parties “back off” for another attempt. The principle works
well for small networks, but introduces inefficiency in networks with high traffic.
Networks are constrained by the use of various switching and routing devices.
•
An Ethernet hub simply allows nodes to be connected together and CSMA/CD
applies.
•
An Ethernet switch intelligently routes internode traffic (nodes only receive traffic
addressed to them). This reduces or eliminates bus contention at the local level. A
switch can also allow a node to operate duplex communication (simultaneous transmit
and receive).
•
•
An Ethernet bridge is a two port switch used for segmenting networks or joining
dissimilar media.
An Ethernet router connects multiple networks and connects to networks of other
types.
Routers and switches use routing tables to determine how traffic is directed. These can be
dynamic, in the sense that they are generated as needed by examining the traffic. They
can also be static, imposing strict rules about how traffic is directed.
This factor is of great importance with respect to transmitting image data over networks.
In practice, unless a network is specifically programmed to carry image data, it is likely that
the data will be blocked at the first router it encounters.
Protocols
For communication to work over networks, there must be some formality about how
communication is done in order to ensure interoperability between different systems.
The ISO proposed a model for this in its Open Systems Interconnection (OSI) model. It
defines seven different “layers” for any intercommunication protocol, starting at the
bottom with a “physical” layer (which might be Ethernet, wireless or some standard serial
communications method) going to the top which is the “application” layer relating to the
actual task in hand.
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The OSI model is used as a reference, and while some systems follow the full model,
others simplify it by combining the functions of certain layers. In particular the protocol
stack (which is the basis of standard Ethernet communication) only has four layers, as
indicated in the figure below.
The Internetwork layer combines the functions of the Data Link and Network layers of the
OSI model and looks after addressing, carrying Internetwork Protocol (IP) within the MAC
frame. The current version of Internetwork protocol is IPv4 which uses a 32 bit address.
IPv6 with 128 bit addressing is being introduced to solve the possible problem of running
out of available IP addresses and to provide certain other enhancements.
The Transport layer is significant with respect to the transmission of images over networks.
It is here that data is formatted into datagrams suitable for transmission by IP. There are
two significant protocols, User Datagram Protocol (UDP) and Transmission Control Protocol
(TCP).
Figure 54. OSI Model
The OSI model (left) defines seven layers of interconnection. The system behaves as if, at
each layer, there is direct connection between each node; but in fact communication is
through the layers. With Ethernet and most data networks the preferred model is the
TCP/IP four layer protocol stack (right).
Comparison between UDP and TCP
The two different transport layer protocols are compared in the following table:
UDP
TCP
Connectionless
Connection oriented
Datagrams must be formatted in application Automatically generates datagrams from
bitstream
Multiple applications using ports
Multiple applications using ports
Unreliable (best effort) communication
Reliable (guaranteed) communication
No flow control (must be in application if
required)
Flow control (deals with out of order data
and error corrections)
No error recovery
Error recovery
Multicast possible (one to many)
Minimum latency
One to one only
Significant latency
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Clearly the most significant difference is that UDP is “best effort” and TCP is “guaranteed
delivery”. TCP is used in most networks for tasks such as exchanging file information
between nodes, because absolute accuracy is required and because the delivery
requirement is usually “point to point”.
The table implies several different methods of transmission, for example:
•
•
•
Broadcast where a message goes to all nodes on the network. Must be UDP.
Unicast where a message goes from one node to another. Must be TCP.
Multicast where a message goes from one node to many nodes, each assigned to a
multicast address group. Must be UDP.
The table has great significance with respect to transmitting images over networks. A few
of the points that arise from it are as follows:
•
•
•
•
Many if not most applications will involve the transmission of an image from one node
to many nodes, indicating that multicast operation is required and that UDP is needed.
Many if not most applications will require minimum latency, again indicating the use
of UDP.
UDP does not provide “reliable” communication, so any application has to take into
account the effect of lost data packets, out of order packets, and errors.
Time critical data (like video) is often sent using an additional protocol called RTP (Real
Time Protocol). This “time stamps” the packets and can be used to endow UDP with
some measure of flow control.
These are not trivial issues. If a data bit goes missing in a dedicated digital video link (like
SDI) the result is not catastrophic – its effect is at a single pixel level within a single video
frame. If a data bit goes missing in an MPEG stream, it can prevent the reconstruction of
an entire group of images.
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Browser
Configuration
Internet Explorer (v6 or Above)
Open Internet Explorer and from the Toolsmenu select Internet Optionsto open the
Internet Options dialog.
To enable cookies:
•
Select the Privacytab and, if required, adjust the slider control to set the required
security level. The VN-Matrix 200 series will operate correctly up to and including
Medium High.
NOTE: Setting the security slider to block all cookies will prevent the VN-Matrix
web interface from operating.
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TIP: If you need to use a high security level, you can click on the Editbutton and
allow the VN-Matrix web interface to use cookies. For example:
To enable JavaScript:
1. Select the Securitytab.
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2. Click the Custom Levelbutton. The Security Settings dialog will appear:
3. Scroll down to the Scripting setting and, under Active scripting, select Enable.
4. Click OKon both dialogs to close and save the new settings.
Mozilla (v1.3 or Above)
Open Mozilla Firefox and from the Editmenu, select Preferencesto open the
Preferences dialog.
NOTE: This procedure is based on Mozilla Firefox version 3.5. Earlier versions may
have a different appearance.
To enable cookies:
1. Select the Privacy & Securitycategory and choose Cookies.
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2. Ensure that either the Enable all cookiesor Enable cookie for the
originating web site onlyoption is selected.
To enable JavaScript:
1. Go to the Advancedcategory and choose Scripts & Plugins.
2. Ensure that the Enable JavaScript for Navigatoroption is selected.
3. Click OKto close the dialog and save the settings.
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Technical Data
VNC 200 Hardware
Connectors
Keyboard and Mouse (PS/2)
Function:
Keyboard and mouse pass-through connections for source
computer
Connector Type:
Pin-out Details:
6-pin mini-DIN (female)
Close-up view of 6-pin female mini-DIN
6
5
4
3
2
1
Pin Function
1
2
3
4
5
6
Data
No connection
Ground
+5 V supply*
Clock
No connection
NOTE: 5 V on pin 4 limited to 200 mA by thermal fuse.
Mating Connector:
Recommended Cable:
Max. Cable Length:
6-pin mini-DIN (male)
Supplied screened PS/2 cable
2.95 meters (9.5 feet)
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Digital Audio I/O (SPDIF In and Out/Loop)
Function:
Input and Output/Loop-Through for digital audio
Connector Type:
RCA Phono Socket
Mating Connector:
Recommended Cable:
Max. Cable Length:
RCA Screened Phono Plug
75W coaxial
10 meters (32 feet)
DVI Input (IN)
Function:
Digital or analog video input for encoding.
DVI-I (female).
Connector Type:
Pin-out Details:
Close-up view of Dual Link female DVI-I input
C1 C2
1
8
9
C5
17
24
C3 C4
Digital Connections
Pin Function
Pin
Function
TMDS 1-
Pin
17
18
19
20
21
22
23
24
Function
TMDS 0-
1
2
3
4
5
6
7
8
TMDS 2-
TMDS 2+
Ground (2/4)
nc
9
10
11
12
13
14
15
16
TMDS 1+
Ground (1/3)
nc
TMDS 0+
Ground (0/5)
nc
nc
nc
nc
DDC Clock
DDC Data
Analog V-Sync
+5 V supply*
Ground (for 5 V)
Hot Plug Detect
Ground (Clock)
TMDS Clock+
TMDS Clock-
NOTE: 5 V supply is provided by VN 200 and limited by 200 mA polyswitch.
All ground pins are linked internally.
Analog Connections
Pin Function
Red signal
C1
C2 Green signal
C3 Blue signal
C4 Horizontal sync
Ground
C5
Mating Connector:
DVI-D or DVI-I (male)
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Recommended Cable:
Maximum Cable Length:
Signal Type:
Supplied DVI cables
2.95 meters (9.5 feet)
DVI (PanelLink® TMDS)
Pixel Clock (DVI sources): Up to 162 MHz
Analog Sources:
VGA 640x480 @ 60,72,75, 85 Hz
SVGA 800x600 @ 56,60,72,75,85 Hz
XGA 1024x768 @ 60,72,75,85 Hz
1152x864 @ 75 Hz
SXGA 1280x1024 @ 60,75,85 Hz
UXGA 1600x1200 @ 60 Hz
WXGA 1920x1200 @ 60 Hz
NOTE: This list may not be fully up to date and other resolutions may also be
supported through custom input modes. Please check with your Extron
dealer if the mode you require is not listed here.
Color Depth:
Scan Mode:
DVI Standard:
24-bit maximum
Progressive
DVI 1.0
Display Data Channel
Standard:
DDC2B
DDC Levels:
VIH = 2.4 V
VOH = 0.9 V
ILOADMAX = 2 mA
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DVI Output (OUT/LOOP)
Function:
Loop-through video connection providing buffered output of the DVI IN connector
DVI-I (female)
Connector Type:
Pin-out Details:
Close-up view of Dual Link female DVI-I out/loop
C1 C2
1
8
9
C5
17
24
C3 C4
Digital Connections
Pin Function Pin Function
TMDS 1-
Pin Function
17 TMDS 0-
18 TMDS 0+
19 Ground (0/5)
20 nc
1
2
3
4
5
6
7
TMDS 2-
TMDS 2+
Ground (2/4)
nc
9
10 TMDS 1+
11 Ground (1/3)
12 nc
nc
13 nc
21 nc
DDC Clock
DDC Data
14 +5 V supply*
15 Ground (for 5 V)
22 Ground (Clk)
23 TMDS
Clock+
8
Analog
V-Sync
16 Hot Plug Detect
24 TMDS
Clock-
NOTES: 5 V supply is provided by VNC 200 and limited by 200 mA polyswitch.
All ground pins are linked internally.
Analog Connections
Pin Function
C1 Red signal
C2 Green signal
C3 Blue signal
C4 Horizontal sync
Ground
C5
Mating Connector:
Recommended Cable:
Maximum Cable Length:
Signal Type:
DVI-D or DVI-I (male)
Supplied DVI cables
2.95 meters (9.5 feet)
DVI (PanelLink® TMDS)
Pixel Clock (DVI sources): Up to 162 MHz.
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Analog Sources:
VGA 640x480 @ 60,72,75,85 Hz
SVGA 800x600 @ 56,60,72,75,85 Hz
XGA 1024x768 @ 60,72,75,85 Hz
1152x864 @ 75 Hz
SXGA 1280x1024 @ 60,75,85 Hz
UXGA 1600x1200 @ 60 Hz
Color Depth:
Scan Mode:
DVI Standard:
24-bit maximum
Progressive
DVI 1.0
Display Data Channel
Standard:
DDC2B
DDC Levels:
VIH = 2.4 V
VOH = 0.9 V
ILOADMAX = 2 mA
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Network (1 and 2)
Function:
Two separate network ports (labeled as 1 and 2). Port 1 is
used for primary network connectivity (for data transport
and configuration). Port 2 is reserved for future expansion.
Connector Type:
Pin-out Details:
Shielded RJ-45 socket
Close-up view of RJ-45 female plug
Network
Status
Data
TX/RX
Shield/
Screen
Shield/
Screen
8 7 6 5 4 3 2 1
Pin Function
Pin Function
TX_D1+ (TX+)
BI_D3–
1
2
3
4
5
6
7
8
TX_D1– (TX–)
RX_D2– (RX–)
BI_D4+
RX_D2+ (RX+)
BI_D3+
BI_D4–
Mating Connector:
Recommended Cable:
Max. Cable Length:
Comms Standard:
Shielded RJ-45 plug
CAT 5E or CAT 6 shielded twisted pair (STP)
100 meters (330 feet)
10/100/1000BASE-T (Gigabit Ethernet)
Ethernet (MAC) Address: Each address is unique and in the format 00:E0:AA:10:xx:yy
where yy is in the range 00 – FF.
IP Address:
Factory-set default is:
Port 1: 192.168.0.1
Port 2: 192.168.1.12 (reserved for future use)
Both are user-definable via the serial interface
Optional DHCP mode
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RS-232 Serial I/O (Remote and RS-232)
Function:
Remote – Used for low level setup or system recovery.
RS-232 – Used for cross-network serial communications or
serial remote control of the ES6xxx controller.
Connector Type:
Pin-out Details:
9-pin D-type (male)
Close-up view of 9-pin D-type male
1
5
9
6
Pin Function
Pin Function
DCD
DSR
RTS
1
2
3
4
5
6
7
8
9
RX (data in)
TX (data out)
DTR
CTS
RING
Ground
Mating Connector:
9-pin D-type (female) with metal cover
Recommended Cable:
6-core plus overall screen (low capacitance)
0.22 mm2 min. per core
Max. Cable Length:
Comms Standard:
2.95 meters (9.5 feet)
RS-232
Remote Default Setting:
Baud:
Bits:
115200
8
Parity:
Stop bits:
Flow control:
None
1
None
RS-232 Port Settings
Baud rate
115200
8
Data bits
Parity
None
1
Stop bits
Flow control
None
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Serial Port Login Procedure
1. From the Login: prompt, type configfollowed by the <Enter> key.
2. When prompted for a password, type configfollowed by the <Enter> key.
The following menu will then appear.
Network Port 1
Network Port 2
==============
==============
0. Speed/Duplex: auto_10_100_1000 10. Speed/Duplex: auto_10_100_1000
1. Boot method: static [dhcp]
11. Boot method: static [dhcp]
12. address: 192.168.1.1
13. netmask: 255.255.255.0
2. address:
3. netmask:
4. gateway:
5. broadcast:
6. mtu:
192.168.0.1
255.255.255.0
192.168.0.1
Gateway:
192.168.0.1
14
15. broadcast:
16. mtu:
1500
1500
7. controller ip: 192.168.0.18
8. controller port: 5432
9. Exit
17. ip forwarding: 0
18. webserver port: 80
3. Type the menu option number required followed by the <Enter> key.
4. Where required, type the new value followed by the <Enter> key.
5. To exit the menu and return to the main command prompt, type 9followed by the
<Enter> key.
Command options
The following commands are also supported from the main command prompt:
Exit
To logout from the session
Reboot
Ping
To force the VN 200 device to restart
To test network communications with another device (see
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Telnet Interface – Quick Reference
Starting Telnet
1. Click the Windows Startbutton and click on Run.
In the Openbox, type telnetthen press the <Enter> key.
The telnet application will start in a separate window:
Login Procedure
1. At the prompt, type openfollowed by the Ip address of the VN 200 controller and the
telnet port number (9999), then press <Enter>. For example:
open 192.168.0.18 9999<Enter>
2. At the command prompt, type user admin, then press <Enter>.
3. Then type passfollowed by a space and the appropriate password, then press
<Enter>.
NOTE: By default the password is admin, but this can be changed via the web
options).
5. To logout, type exitfollowed by <Enter>.
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Reference
Information
Specifications
Video input
Number/signal type ........................ 1 DVI-I: analog RGBHV, RGsB, HDTV component video
(progressive, interlaced) or single link digital DVI (DVI-D)
Connectors .................................... 1 female DVI-I
Nominal level ................................. 1.0 Vp-p for Y of component video
0.7 Vp-p for RGB and for R-Y and B-Y of component video
Minimum/maximum levels.............. Analog: 0.0 V to 1.0 Vp-p with no offset
Impedance ..................................... 75 ohms
Resolution range ............................ 640x480 to1600x1200, 1920x1200 (with reduced
blanking) @ 23.97 Hz to 85 Hz
Also 525i, 625i, 720p, 1080i, 1080p
Standards....................................... DVI 1.0
Video processing
Digital sampling ............................. 24 bit, 8 bits per color, 165 MHz standard
Colors ............................................ 16.78 million
Compression.................................. PURE3™ Codec
Frame rate delay............................. 35 ms (70 ms encoding/decoding)
Bit rate........................................... 1 Mbps to 200 Mbps
Bit and frame rate control .............. Selectable
Frame rate...................................... Up to 60 fps @ 1080p
Video output
Number/signal type ........................ 1 DVI-I: analog RGBHV, RGsB, or single link digital DVI
(DVI-D); follows input or is scaled
Connectors .................................... 1 female DVI-I
Nominal level ................................. 0.7 Vp-p for RGB
Minimum/maximum levels.............. 0.0 V to 1.0 Vp-p
Impedance ..................................... 75 ohms
Scaled resolution............................ 640x480 to1600x1200, 1920x1200 (with reduced
blanking) @ 23.97 Hz to 85 Hz
Also 525i, 625i, 720p, 1080i, 1080p
Scan mode..................................... Follow mode: output follows input
Scale mode: set to match the resolution and frame rate of
the local display
Sync
Input type ...................................... RGBHV, RGsB, bi-level component video
Output type ................................... RGBHV
Input level ...................................... 2.75 V to 5.0 Vp-p for RGBHV
0.3 Vp-p for RGsB or component video bi-level sync
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Output level ................................... TTL: 5.0 Vp-p, unterminated
Polarity........................................... Positive or negative (follows input)
Audio input/output
Number/signal type ........................ 1 S/PDIF
Source formats............................... PCM encoded audio, AES/EBU
Connectors .................................... 1 RCA jack
Audio processing
Compression.................................. Audio data is transported without compression by default.
Sampling rate and bit depth decimation may be applied for
uncompressed audio S/PDIF data:
• 16 bit, full sampling rate
• 16 bit, half sampling rate
• 16 bit, quarter sampling rate
Simple run length encoding may be applied for compressed
audio S/PDIF data.
Rates.............................................. 400 kbps to 3 Mbps
Sampling rates ............................... 44.1, 48 kHz
Control/remote — local host — codec, encoder, decoder
Serial control port
VNC 200 DVI........................... (2) RS-232, male 9-pin D connectors: 1 for host
configuration, 1 for control of other products
All other models ...................... (1) RS-232, male 9-pin D connector, for host configuration
Baud rate and protocol................... 115200 baud, 8 data bits, 1 stop bit, no parity, no flow
control
Serial control pin configurations ..... 1 = DCD, 2 = Rx, 3 = Tx, 4 = DTR, 5 = GND, 6 = DSR, 7 =
RTS, 8 = CTS, 9 = ring
Keyboard/mouse ports
VNC 200 DVI, VNC 200 DVI-A. 2 PS/2 mouse ports (female 6-pin mini DIN): 1 input, 1 loop
through
2 PS/2 keyboard ports (female 6-pin mini DIN): 1 input, 1
loop through
Ethernet control ports .................... 2* female RJ-45
NOTE: *Only one of the two RJ-45 ports is used for data and configuration. The other port is
not used.
Ethernet data rate.......................... 10/100/1000Base-T, half/full duplex with autodetect
Ethernet protocol ........................... ICMP (ping), IP, TCP, RTP, RTCP, UDP, DHCP, HTTP, SMTP,
Telnet
System control ............................... VN-Matrix Enterprise Controller, VN-Matrix Enterprise
Retundant Controller
VN-Matrix Web server
Program control ............................. Extron control/configuration software (VNM Viewer, VNM Virtual
Switch) for Windows®
Extron Command Line Interface (CLI)
Microsoft® Internet Explorer® and other Web browsers, Telnet
Network transport
Ethernet data rate.......................... 10/100/1000Base-T, half/full duplex with autodetect
Ethernet protocol
Streaming................................ RTP, RTCP
Transport ................................. TCP, UDP (unicast or multicast)
All supported........................... ICMP (ping), IP, TCP, RTP, RTCP, UDP, DHCP, HTTP, SNMP V3,
Telnet
Video input/output......................... PURE3™ Codec compression
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Audio input/output ........................ PCM, AC3
General
External power supply.................... 100 VAC to 240 VAC, 50-60 Hz, external; to 12 VDC, 5 A
max.
Temperature/humidity .................... Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%,
noncondensing
Operating: +41 to +95 °F (5 to +35 °C) / 10% to 85%,
noncondensing
Cooling.......................................... Fan, vented front to back
Mounting
Rack mount............................. Yes
Enclosure type................................ Metal
Enclosure ....................................... 1.75" H* x 8.5" W x 12.2" D (1U high, half rack wide)
(4.4 cm H* x 21.5 cm W x 30.9 cm D)
*Height with feet is 2.1" (5.3 cm).
(Depth includes connectors.)
Product weight............................... 4.1 lbs (1.9 kg) each
Shipping weight............................. TBD
Regulatory compliance
Safety...................................... CE, c-UL, UL
EMI/EMC ................................. CE, C-tick, FCC Class A, ICES, VCCI
Warranty........................................ 3 years parts and labor
NOTE: All nominal levels are at 10%.
NOTE: Specifications are subject to change without notice.
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Accessories
Supplied Accessories
In addition to this User Guide, the VNC 200 is supplied with the following accessories. If
any of these items are missing or damaged, please contact your Extron dealer immediately:
Part Description
Qty Re-order Code
12 V Power Supply Unit (PSU)
1
1
70-761-01
Power Cord for PSU (with 3-pin ‘Edison’ plug)
— For use in the USA.
27-044-01LF
Digital Monitor Cable (2 meter DVI-D to DVI-D)
1
26-535-01
Analog Monitor Cable (2 meter 15-pin HD-type to DVI-A)
DVI-A to 15-pin HD Adapter
1
1
26-540-01
26-589-01
Mouse and Keyboard Cable (2 metre PS/2 to PS/2)
Serial Cable (9-pin D-type to 9-pin D-type)
2
1
27-727-01LF
27-699-01LF
Optional Accessories
The following optional accessories are also available for use with the VNC 200. Order
these from your Extron dealer:
Part Description
Order
Code
VNM Dual RMK
60-1130-
01
• A kit that allows two VNC 200 units to be installed in a 19 inch
equipment rack. Full instructions are included with the kit.
VNM Quad RMK
60-1131-
01
• A kit that allows four VNC 200 units to be installed, side by side, in a
19 inch equipment rack. Full instructions are included with the kit.
VNM MBU
60-1132-
01
• A kit that allows an VNC 200 unit to be mounted to any convenient flat
surface, such as under a desk. Full instructions are included with the kit.
VNM 12PSR
70-762-01
• A 12 way redundant power supply system, for use when rack mounting
multiple units.
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Extron® Warranty
Extron Electronics warrants this product against defects in materials and workmanship for a period of three years
from the date of purchase. In the event of malfunction during the warranty period attributable directly to faulty
workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components,
to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is
returned within the warranty period, with proof of purchase and description of malfunction to:
USA, Canada, South America,
Japan:
and Central America:
Extron Electronics
1001 East Ball Road
Anaheim, CA 92805
U.S.A.
Extron Electronics, Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
Europe, Africa, and the Middle
East:
Extron Europe
Hanzeboulevard 10
3825 PH Amersfoort
The Netherlands
China:
Extron China
686 Ronghua Road
Songjiang District
Shanghai 201611
China
Asia:
Extron Asia
Middle East:
Extron Middle East
135 Joo Seng Road, #04-01
PM Industrial Bldg.
Singapore 368363
Singapore
Dubai Airport Free Zone
F12, PO Box 293666
United Arab Emirates, Dubai
This Limited Warranty does not apply if the fault has been caused by misuse, improper handling care, electrical
or mechanical abuse, abnormal operating conditions, or modifications were made to the product that were not
authorized by Extron.
NOTE: If a product is defective, please call Extron and ask for an Application Engineer to receive an RA (Return
Authorization) number. This will begin the repair process.
USA: (714) 491-1500
Asia: 65.6383.4400
Europe: 31.33.453.4040
Japan: 81.3.3511.7655
Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk of loss or damage
during shipment. Returned units must include the serial number and a description of the problem, as well as the
name of the person to contact in case there are any questions.
Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality,
performance, merchantability, or fitness for any particular use. In no event will Extron Electronics be liable for direct,
indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been
advised of such damage.
Please note that laws vary from state to state and country to country, and that some provisions of this warranty may
not apply to you.
Extron USA - West
Extron USA - East
Extron Europe
Extron Asia
Extron Japan
Extron China
Extron Middle East
Headquarters
+81.3.3511.7655
+81.3.3511.7656 FAX
+971.4.2991800
+971.4.2991880 FAX
+800.7339.8766
Inside Asia Only
+400.883.1568
Inside China Only
+800.633.9876
Inside USA/Canada Only
+800.633.9876
Inside USA/Canada Only
+800.3987.6673
Inside Europe Only
+65.6383.4400
+65.6383.4664 FAX
+86.21.3760.1568
+86.21.3760.1566 FAX
+1.714.491.1500
+1.714.491.1517 FAX
+1.919.863.1794
+1.919.863.1797 FAX
+31.33.453.4040
+31.33.453.4050 FAX
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