®
®
NOVEMBER 2008
ACU5051A
NETWORK SERVICES
ACU5052A
ServSwitch™ SRX
USER GUIDE
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Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
CUSTOMER
SUPPORT
INFORMATION
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
contents
®
Welcome
Introduction
Thank you for choosing the ServSwitch Wizard SRX
extenders which provide a very effective way to put
distance between your computer and its peripherals.
Using the Wizard SRX extenders does not mean
that you need to compromise on functionality in
any way. Our highly efficient transmission methods
mean that high video resolutions of up to 1920
x 1440 are supported together with CD quality
digital sound that produces no crackles - even
in the quietest interludes. The USB connections
are seamless and thanks to our unique ‘Bi-tripos’
circuitry, four full speed USB 2.0 devices can
be used simultaneously with full support for
disconnect/re-connect at any time without causing
errors.
The Wizard SRX extenders have been designed
to be quick to install and totally transparent in
operation. All connectors are industry standard and
the video sharpness adjustments are made using a
simple rotary dial.
The compact casings and ease of use of the Wizard
SRX modules belie the ingenuity of their operation.
Using our proprietary transmission techniques we
are able to reliably transfer more signals than ever
before along a single length of Category 5, 5e or
6 twisted pair cabling. What this means for you is
that your video, audio, USB keyboard, USB mouse
and two other USB channels are all readily and
reliably available at up to 50 metres away.
Where two screens are required, a dual VGA variant
provides double video channels in addition to full
support for an RS232 serial device. So whether you
are extending your workplace or creating a cost-
effective distributed audio visual system, the Wizard
SRX extenders provide the power and flexibility to
create the right solution.
PC
OUT
BLACK BOX
BLACK BOX
POWER
POWER
SRX
SRX
IN
CATx link cable(s)
SHARPNESS
OUT
VIDEO 1
VIDEO 2
Up to 50 metres
separation
LOCAL
REMOTE
AUDIO
RS232 SERIAL
LINK
TO REMOTE
ON
LINK
IN
TO LOCAL
®
®
®
®
ON
USB
724-746-5500
724-746-5500
USB
device
USB
device
Serial
device
Secondary video, RS232 serial and a second link cable are available only with the Wizard SRX Dual VGA variant
*
ꢁ
®
Supplied items
Wizard SRX standard extender modules
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USB (A to B
type) lead
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Video lead
(ꢀ5 way, male to male)
SRX local
module
SRX remote
module
Self adhesive
feet
Power adapter and
country- specific
power lead (for
remote module)
Audio lead
(ꢂ.5mm jacks)
CD-ROM
Wizard SRX dual VGA variant extender modules
The Dual VGA variant package includes all of the above ancillary items plus:
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Video lead
(ꢀ5 way, male to male)
RSꢁꢂꢁ serial lead
(9 way male to female)
SRX Dual VGA
local module
SRX Dual VGA
remote module
ꢂ
®
Installation
Connections
Mounting
Installation of the SRX modules is straightforward with minimal configuration
requirements in most cases.
The SRX modules offer two main mounting methods:
• Supplied four self-adhesive rubber feet
• Rack mount brackets - see below
Important
ON
Do not attach a USB hub to the SRX remote, nor plug the SRX local module into
another USB hub. To do so will reduce the maximum cable length over which the
system will extend USB; also, some USB hubs may not provide enough power to
operate the local unit.
2
3
4
5
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Connections at the local module
O
3 Optionally connect local speakers
to the audio output connector
on the local module.
1 Where possible ensure that power is disconnected from the computer
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LO
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system to be connected.
L
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2 Attach the video, USB (see the
Important note on page 5) and
(optionally) audio connections
from the computer system to
the relevant sockets on the
local module.
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To local
speakers
To speaker
output port
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4 Optionally connect a local video
monitor to the video out feed-
through connector on the local
module.
Note: The dual VGA
variant has its primary
video, USB and audio
connectors arranged
in a similar manner to
the single unit (shown
above).
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To USB port
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To primary video
output port
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LOCAL
[Dual VGA variant only]
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Optionally attach a second
video input from the computer
system to the upper video in
socket on the local module.
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A
To local
monitor
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[Dual VGA variant only]
Optionally attach a second
video monitor to the upper
video out socket on the
local module.
P O
W E R
To secondary video
output port
To secondary
local monitor
ꢄ
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5 Attach the connector of the
category 5, 5e or 6 link cable (up
to 50 metres in length) to the
‘TO REMOTE’ socket on the local
module (labelled ‘LINK 1’ on dual
VGA variants).
6 [Dual VGA variant only]
Optionally attach a serial
connection lead to the female
connector on the local module
and attach the other end to
a vacant serial port on your
computer.
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LOCAL
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Link to remote
module
To computer
serial port
Local module power
In the majority of installations, the local module will derive all of its power
successfully from the USB link with the computer system. However, if insufficient
[Dual VGA variant only] Attach
the connector of a second
category 5, 5e or 6 link cable
(up to 50 metres in length) to
the ‘LINK 2’ socket on the local
module.
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voltage is available from the computer system, the green indicator
adjacent to the link connector will flash. If this occurs (or if you do
not intend to use the USB connection with the computer) you will
need to purchase and use a power supply identical to the one used
for the remote module from your Black Box stockist.
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1 If external power input is necessary, attach the output
connector of the optional power
Low power
indicator
supply to the ‘POWER’ socket of
the local module.
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2 Attach the IEC power lead to the
power supply body and insert the
mains plug of the lead to a
nearby power outlet.
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Secondary link to
remote module
P O
W
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Note: If a power adapter is
plugged into the module but
not switched on, it will prevent
the unit from deriving power
from the USB connection.
To optional
power supply
ꢅ
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Connections at the remote module
3 Attach the leads of up to four
USB devices (two of which are
usually a keyboard and mouse)
to the sockets located adjacent
to the video output connector.
1 Place the remote module adjacent to the user location.
2 Attach the lead from the video
monitor to the video out socket
on the remote module.
TE
REMO
®
TE
REMO
®
To USB devices,
e.g. keyboard,
mouse, etc.
See the Important note on page 5
To video
monitor
[MS2 variant only] Note: When connecting four USB devices to the unit,
ensure that their total power requirements do not exceed 1700mA (1.7A).
The USB standard states a maximum allowable current draw of 500mA
(0.5A) per device, although most devices remain well below this limit - USB
keyboards and mice typically require 100mA. Each X50 contains a self-
resetting fuse that will prevent damage by shutting down the unit if the
total power draw becomes excessive.
TE
REMO
[Dual VGA variant only]
®
Optionally attach the lead from
a second video monitor to the
upper video out socket on the
remote module.
B
A
4 [Dual VGA variant only] Optionally
REMO
®
attach a serial device lead to the
male serial connector on the
B
remote module.
A
To secondary
video monitor
To RSꢁꢂꢁ
serial device
ꢆ
®
5 Optionally attach the lead from
your stereo speakers to the audio
output socket on the remote
module.
7 Attach the output connector
of the power supply to the
‘POWER’ socket of the remote
module.
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S H A R N E S S
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To speakers
6 Attach the connector of the
category 5, 5e or 6 link cable
(up to 50 metres in length) to
the ‘TO LOCAL’ socket on the
remote module (labelled ‘LINK
1’ on dual VGA variants).
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O
To power
supply
O N
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S H A R N E S S
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8 Attach the IEC power lead to the power supply body and insert the mains
plug of the lead to a nearby power outlet.
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Link to remote
module
[Dual VGA variant only] Attach
the connector of a second
category 5, 5e or 6 link cable (up
to 50 metres in length) to the
‘LINK 2’ socket on the remote
module.
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S H A R P N E S S
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To mains
outlet
Secondary
link to
remote
module
9
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Dual user configuration
You can combine two Wizard SRX extender sets to create a dual
user configuration. Such an installation would allow a single
computer to be controlled from two different positions, with each
position receiving the same audio visual output and having equal
and concurrent control over the computer. Arbitration between the
two positions is handled by the computer’s USB system and so this
arrangement is better suited to situations where two users would
not often require simultaneous access.
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First local module
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BLACK BOX
POWER
SRX
1
SHARPNESS
REMOTE
LINK
TO LOCAL
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ON
724-746-5500
Video crosslink
from first to
second local
module
Audio, USB and
video from the PC
PC
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CATx link (up to 50m)
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BLACK BOX
POWER
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LOCAL
IN
VIDEO
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OUT
Audio crosslink
AUDIO
LOCAL
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from first to
second local
module
LINK
IN
USB
TO REMOTE
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ON
724-746-5500
Video and audio crosslinks are
made from first local module to
OUT
the second local module
BLACK BOX
POWER
SRX
IN
OUT
LOCAL
LINK
IN
TO REMOTE
®
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ON
724-746-5500
Second USB
from the PC
CATx link (up to 50m)
Both local modules
require their own
USB links to the PC
USER
BLACK BOX
POWER
SRX
2
SHARPNESS
Most of the connections are similar to the standard configuration. The main
difference is in the links to the second local module. Use an audio link lead to
connect the audio out socket of the first local module to the audio in socket of
the second. Similarly, use a video link lead to connect the video out and video
in ports. The second local module then requires its own USB link directly to the
computer. In all other respects follow the standard instructions to connect CATx
links and all of the remote module connections.
REMOTE
LINK
TO LOCAL
®
®
ON
724-746-5500
ꢀ0
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Video display (DDC) information
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The Display Data Channel (or DDC) is an industry standard scheme which allows
video monitors to declare their capabilities to the computer’s video adapter
circuitry, allowing the latter to optimise their outputs accordingly. Since the
widespread adoption of the scheme, video adapters have become increasingly
dependent on receiving relevant DDC information during startup, before they
will output anything more than a rudimentary video signal.
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DDC indications
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When power is first applied to the local module (either from
the computer’s USB port or an optional power adapter) it will
search for valid DDC data on its video out connector. During
this process, the yellow indicator (built into the link connector)
will flash to indicate its progress:
It is not possible to transmit DDC data back from the video monitor that is
attached to the remote module to the computer’s video adapter. Therefore,
during startup of the local module, it will search for a video monitor connected
to its local feed-through connector:
• If no valid DDC information is located, the yellow indicator
will give one very short flash, representing an attempt to
read data. No changes will be made to the information already stored within
the local module.
• If a local video monitor is found, its DDC information will be compared to
the information already stored and, if different, will be copied, stored and
presented to the video adapter upon request.
• If the DDC information is the same as that already stored, no change will be
made and the yellow indicator will give one single flash as the information is
checked and normal operation resumes.
• If no local video monitor is found, the local module will make available its
previously stored set of DDC parameters to the video adapter upon request;
or, if none were stored, a default set.
• If different DDC information is located, the yellow indicator will flash rapidly
for 2 to 3 seconds while the new information is stored. A single flash will
then be given as the information is checked and normal operation resumes.
In either case, the DDC information taken by the video adapter will be used
to determine the video output that is sent via the SRX modules to the remote
monitor.
The local module’s yellow indicator also provides fault indications to assist with
troubleshooting:
• Two flashes - Checksum error prior to copying - no information will be
programmed.
If you find that the default DDC information is not completely suitable for your
remote monitor, try temporarily connecting your remote monitor to the video
out port of the local module. When the local module is powered up, it will read
and store the DDC information from your monitor. You can then return the
monitor to its remote position and the new DDC information will be used at
every power on.
• Three flashes - Too much data to fit into the module - the module can hold a
maximum of two pages of DDC information.
• Rapid flashing followed by four flashes - data was lost during copying - the
default data was substituted. Repeat the power on process.
• Rapid flashing followed by five flashes - Checksum error during copying
- the default data was substituted. Repeat the power on process.
ꢀꢀ
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Video sharpness adjustment
The Wizard SRX remote module includes a straightforward video adjustment to
control picture sharpness on the remote monitor.
To adjust video sharpness
1 On the computer, display a suitable
high contrast image (see right).
To display a suitable high contrast image
The best way to clearly view the effect of
sharpness and brightness adjustments is to
display a high contrast image, with vertical
edges, on the screen.
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2 Insert a small flat-bladed
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X
screwdriver into the SHARPNESS
adjustment hole so that it engages
with the slot in the rotary dial.
S H
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S S
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• Open a word processor, type the capital
letter ‘H’, or ‘M’ and increase the point
size to 72 or higher. For best results, the
background should be white and the
character should be black.
3 Turn the rotary dial fully
clockwise - you should see
a bright white shadow
to the right of your high
contrast image:
High contrast
black character
on white
Black or bright
white shadow
on the right
indicates
the need for
sharpness
background
4 Turn the rotary dial anti-
clockwise until the white
adjustment
shadow disappears and the
edges of your image become sharp.
®
Sharpness control for
the second (B) video
channel
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L O C A
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L I N K
The remote module for the
dual VGA variant includes
two separate sharpness
adjustments for each video
channel (the upper dial
corresponds to the upper
video output socket).
X
B
S H A R P N E S S
A
P O
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Sharpness control
for the first (A) video
channel
ꢀꢁ
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Operation
Peripheral operation
General use
In use, the SRX modules should be transparent - the system and its peripherals
should operate exactly as normal, the only difference being that they are now up
to 50 metres apart.
USB
Each SRX remote module provides four USB outlets, each of which can support
USB 2.0 peripherals at speeds up to 12Mbps. The SRX appears to the computer
as a four-port USB hub.
In some installations, you may see some ‘shadows’ to the right of high contrast
screen characters. This can be caused by an incorrectly selected sharpness setting
and it may be necessary to make adjustments to correct this. Please see Video.
sharpness.adjustment in the ‘Installation’ section.
If the link between the modules is interrupted, any connected USB peripherals
will be automatically disabled and re-enabled once the connection is restored.
[MS2 variant only] Note: When connecting four USB devices to the unit, ensure
that their total power requirements do not exceed 1700mA (1.7A). The USB
standard states a maximum allowable current draw of 500mA (0.5A) per device,
although most devices remain well below this limit - USB keyboards and mice
typically require 100mA. Each X50 contains a self-resetting fuse that will prevent
damage by shutting down the unit if the total power draw becomes excessive.
Dual user arbitration
When using two sets of SRX modules to allow two users to access a single
computer, be aware that arbitration between the users is handled by the USB
sub-system of the computer. Unlike with other Black Box products, this means
that both users can control the computer at exactly the same time and the
resulting keyboard and mouse influences will be an amalgam of the two inputs
- i.e. a mouse move to the right by one user will cancel out a simultaneous left
mouse move by the other. The same is also true when the local module has
feed-through peripherals attached to it, adjacent to the computer.
RS232 serial
The dual VGA variant modules provide additional support for an RS232 device.
The 9 way male D-type socket on the remote module supports speeds up to
115,200 baud and all PC-AT flow control pins are supported.
For this reason, the SRX dual user arrangement is better suited to situations
where two users would not often require simultaneous access.
ꢀꢂ
®
Further information
Troubleshooting
Getting assistance
If you are still experiencing problems after checking the list of solutions in the
Troubleshooting section then we provide a number of other solutions:
Status indicators
The green and yellow indicators built into the link connectors on each module
provide useful feedback regarding the connection and power status:
• Email
in the US:
in the UK:
During startup (of the local module)
• One very short yellow flash: no valid DDC information available from
a locally connected video monitor, no changes made to stored DDC
information.
• Phone
in the US:
in the UK:
ꢅꢁꢃ-ꢅꢃꢄ-5500
+ꢃꢃ (0)ꢀꢀꢆ 9ꢄ5 ꢄ000
• Single yellow flash: DDC information being read from a locally connected
video monitor, but no changes made to stored DDC information.
• Rapid yellow flash for 2 to 3 seconds, followed by single flash: New DDC
information being read and stored from a locally connected video monitor.
• Two yellow flashes - Checksum error prior to copying - no information will
be programmed.
• Three yellow flashes - Too much data to fit into the module - the module
can hold a maximum of two pages of DDC information.
• Rapid yellow flashing followed by four flashes - data was lost during copying
- the default data was substituted. Repeat the power on process.
• Rapid yellow flashing followed by five flashes - Checksum error during
copying - the default data was substituted. Repeat the power on process.
During operation (either module)
• Continual yellow: Valid CATx link to other module sensed.
• Continual green: Correct power input sensed.
• Green flashes: Power input too low for normal operation. In the case of the
local module, this may be because the USB connection is unable to provide
sufficient power. In these cases, an external power supply should be used
with the local module.
Important
Do not attach a USB hub to the SRX remote, nor plug the SRX local module into
another USB hub. To do so will reduce the maximum cable length over which
the system will extend USB; also, some USB hubs may not provide enough
power to operate the local unit.
ꢀꢃ
®
Safety information
• For use in dry, oil free indoor environments only.
• Do not use to link between buildings.
• Ensure that all twisted pair interconnect cables are installed in compliance
with all applicable wiring regulations.
• Do not connect CATx link interfaces (RJ45 style connectors) to any other
equipment, particularly network or telecommunications equipment.
• Warning – the power adapter contains live parts.
• No user serviceable parts are contained within the power adapter - do not
dismantle.
• Plug the power adapter into a socket outlet close to the module that it is
powering.
• Replace the power adapter with a manufacturer approved type only.
• Do not use the power adapter if the power adapter case becomes damaged,
cracked or broken or if you suspect that it is not operating properly.
• If you use a power extension cord with the remote module, make sure the
total ampere rating of the devices plugged into the extension cord do not
exceed the cord’s ampere rating. Also, make sure that the total ampere
rating of all the devices plugged into the wall outlet does not exceed the
wall outlet’s ampere rating.
• Do not attempt to service the modules yourself.
• The power supply can get warm in operation – do not situate it in an
enclosed space without any ventilation.
ꢀ5
®
Radio Frequency Energy
A Category 5 (or better) twisted pair cable must be used to connect the units in
order to maintain compliance with radio frequency energy emission regulations
and ensure a suitably high level of immunity to electromagnetic disturbances.
All other interface cables used with this equipment must be shielded in order
to maintain compliance with radio frequency energy emission regulations and
ensure a suitably high level of immunity to electromagnetic disturbances.
European EMC directive 89/336/EEC
FCC Compliance Statement (United States)
This equipment has been tested and found to comply with the limits for a class
A computing device in accordance with the specifications in the European
standard EN55022. These limits are designed to provide reasonable protection
against harmful interference. This equipment generates, uses and can radiate
radio frequency energy and if not installed and used in accordance with the
instructions may cause harmful interference to radio or television reception.
However, there is no guarantee that harmful interference will not occur in a
particular installation. If this equipment does cause interference to radio or
television reception, which can be determined by turning the equipment on
and off, the user is encouraged to correct the interference with one or more
of the following measures: (a) Reorient or relocate the receiving antenna. (b)
Increase the separation between the equipment and the receiver. (c) Connect
the equipment to an outlet on a circuit different from that to which the receiver
is connected. (d) Consult the supplier or an experienced radio/TV technician for
help.
This equipment generates, uses and can radiate radio frequency energy
and if not installed and used properly, that is, in strict accordance with the
manufacturer’s instructions, may cause interference to radio communication.
It has been tested and found to comply with the limits for a class A computing
device in accordance with the specifications in Subpart J of part 15 of FCC rules,
which are designed to provide reasonable protection against such interference
when the equipment is operated in a commercial environment. Operation of this
equipment in a residential area may cause interference, in which case the user at
his own expense will be required to take whatever measures may be necessary
to correct the interference. Changes or modifications not expressly approved by
the manufacturer could void the user’s authority to operate the equipment.
Canadian Department of Communications RFI statement
This equipment does not exceed the class A limits for radio noise emissions from
digital apparatus set out in the radio interference regulations of the Canadian
Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant
les limites applicables aux appareils numériques de la classe A prescrites dans
le règlement sur le brouillage radioélectriques publié par le ministère des
Communications du Canada.
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®
Normas Oficiales Mexicanas (NOM) electrical
safety statement
Instrucciones de seguridad
1 Todas las instrucciones de seguridad y operación deberán ser leídas antes de
que el aparato eléctrico sea operado.
15 En caso de existir, una antena externa deberá ser localizada lejos de las
lineas de energia.
16 El cable de corriente deberá ser desconectado del cuando el equipo no sea
usado por un largo periodo de tiempo.
2 Las instrucciones de seguridad y operación deberán ser guardadas para
referencia futura.
17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean
derramados sobre la cubierta u orificios de ventilación.
3 Todas las advertencias en el aparato eléctrico y en sus instrucciones de
operación deben ser respetadas.
18 Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o
C: El aparato ha sido expuesto a la lluvia; o
4 Todas las instrucciones de operación y uso deben ser seguidas.
5 El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca
de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc.
6 El aparato eléctrico debe ser usado únicamente con carritos o pedestales
que sean recomendados por el fabricante.
D: El aparato parece no operar normalmente o muestra un cambio en su
desempeño; o
7 El aparato eléctrico debe ser montado a la pared o al techo sólo como sea
recomendado por el fabricante.
E: El aparato ha sido tirado o su cubierta ha sido dañada.
8 Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más
allá a lo descrito en las instrucciones de operación. Todo otro servicio deberá
ser referido a personal de servicio calificado.
9 El aparato eléctrico debe ser situado de tal manera que su posición no
interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá,
alfombra o superficie similar puede bloquea la ventilación, no se debe
colocar en libreros o gabinetes que impidan el flujo de aire por los orificios
de ventilación.
10 El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor
como radiadores, registros de calor, estufas u otros aparatos (incluyendo
amplificadores) que producen calor.
11 El aparato eléctrico deberá ser connectado a una fuente de poder sólo
del tipo descrito en el instructivo de operación, o como se indique en el
aparato.
12 Precaución debe ser tomada de tal manera que la tierra fisica y la
polarización del equipo no sea eliminada.
13 Los cables de la fuente de poder deben ser guiados de tal manera que
no sean pisados ni pellizcados por objetos colocados sobre o contra ellos,
poniendo particular atención a los contactos y receptáculos donde salen del
aparato.
14 El equipo eléctrico debe ser limpiado únicamente de acuerdo a las
recomendaciones del fabricante.
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®
© 2008 Black Box Corporation
All trademarks are acknowledged.
Black Box Corporation,
1000 Park Drive,
Lawrence,
PA 15055-1018,
United States of America
Tel: +1-724-746-5500
Fax: +1-724-746-0746
Documentation by:
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BlackBox subsidiary contact details
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www.blackbox.fi
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