IE-iMcV-T1-Mux/4 + Ethernet
Operation Manual
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Table of Contents
FCC Radio Frequency Interference Statement-------------------------------------------------- i
Warranty ------------------------------------------------------------------------------------------------ i
About the IE-iMcV-T1-Mux/4 + Ethernet------------------------------------------------------- 1
Configuration Control ------------------------------------------------------------------------------- 3
LED Operation---------------------------------------------------------------------------------------- 7
10/100BaseT Connector --------------------------------------------------------------------- 7
T1 RJ-48 Connectors-------------------------------------------------------------------------- 7
SFP Ports----------------------------------------------------------------------------------------- 8
DIP Switch Assignments----------------------------------------------------------------------------- 9
DIP Switch Assignments---------------------------------------------------------------------- 9
Installation Instructions-----------------------------------------------------------------------------10
Configuration Options------------------------------------------------------------------------------11
Ethernet Port---------------------------------------------------------------------------------- 11
Packet Size------------------------------------------------------------------------------------ 11
Auto Negotiation----------------------------------------------------------------------------- 11
Forcing the Speed, Duplex Mode, and Flow Control-------------------------------- 11
Bandwidth Control -------------------------------------------------------------------------- 11
FX LinkLoss and LFPT ----------------------------------------------------------------------- 11
FX LinkLoss (FXLL)--------------------------------------------------------------------------- 11
Fiber Fault Loopback (FFL) ---------------------------------------------------------------- 12
T1 Ports---------------------------------------------------------------------------------------- 12
Alarm Level ----------------------------------------------------------------------------------- 12
Alarm Conditions ---------------------------------------------------------------------------- 12
Loopback-------------------------------------------------------------------------------------- 13
Console Screens -------------------------------------------------------------------------------------14
Login Screen ------------------------------------------------------------------------------------- 14
Main Menu--------------------------------------------------------------------------------------- 15
Unit Configuration Screen -------------------------------------------------------------------- 15
Port Alarm Status Screen ---------------------------------------------------------------------- 16
SFP Line Status Screen ------------------------------------------------------------------------- 17
Ethernet Port Configuration Screen --------------------------------------------------------- 17
Ethernet Port Status Screen ------------------------------------------------------------------- 18
T1 Port Configuration Screen----------------------------------------------------------------- 18
Host T1 Port Setup Screen----------------------------------------------------------------- 19
T1 Port Status Screen--------------------------------------------------------------------------- 19
Fiber Optic Port Verification------------------------------------------------------------------ 20
T1 Port Verification----------------------------------------------------------------------------- 21
10/100BaseT Ethernet Mating Connector Pinout------------------------------------- 21
T1 Port Mating Connector Pinout-------------------------------------------------------- 22
RS-232 Port Mating Connector Pinout-------------------------------------------------- 22
RS-232 Serial Console Port---------------------------------------------------------------- 23
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Troubleshooting -------------------------------------------------------------------------------------24
Specifications-----------------------------------------------------------------------------------------25
Standards/Compliance -----------------------------------------------------------------------------25
Definition of Terms/Acronyms--------------------------------------------------------------------26
IMC Networks Technical Support----------------------------------------------------------------29
Fiber Optic Cleaning Guidelines-----------------------------------------------------------------30
Electrostatic Discharge Precautions--------------------------------------------------------------30
Safety Certifications ---------------------------------------------------------------------------------31
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About the IE-iMcV-T1-Mux/4 + Ethernet
Overview
The IE-iMcV-T1-Mux/4 + Ethernet is a media converter that transports four
independent T1 lines over an existing single (or dual, “1+1”) standard fiber optic line
operating at an effective rate of 155Mbps. One serial link (RS-232) and one Ethernet
(10/100BaseT) connection are also multiplexed onto the fiber link(s). Each of these
communication channels is transported end-to-end at full wire speed with very low
latency. A maximum packet size of up to 1916 bytes is supported on the Ethernet
port.
The serial link can be used for extending an independent RS-232 interface to the
remote POP location for use in managing or controlling other devices at the POP and
supports any data rate up to 120Kbps. In addition, each unit also supports an RS-232
console port for local configuration by technical support personnel. The console port
is used for end-to-end system management, fault detection/isolation and system
diagnostics.
The IE-iMcV-T1-Mux/4 + Ethernet provides fault indications on the T1 and fiber links
resulting from real-time active faults. The equipment detects both T1 and fiber LOS
events as well as degraded T1 or fiber lines. The unit will automatically forward AIS
signaling to the remote unit after detecting an LOS (Loss Of Signal) condition on any
incoming T1 line. Severe receive optical link failures will result in the automatic
generation of AIS signaling onto the T1 lines connected to the unit receiving the
corrupted optical signal.
In addition, Code Violation (CV) errors are detected on all incoming T1 lines and BER
calculations for the optical line are constantly being performed by circuitry within the
unit's optical receiver. Error conditions are displayed on the unit’s front panel LED
indicators and reported to system management software (if equipped) where more
detailed error information can be displayed on the user’s Graphical User Interface
(GUI).
Modules equipped with 1+1 fiber redundancy can benefit from the enhanced
reliability of a protected fiber link and the system’s ability to automatically switch to
the “best” fiber line should one line become impaired or fail. This automatic
switchover capability is designed to occur rapidly (<50 milliseconds), minimizing data
loss and system down time. In addition, automatic switchover can be overridden;
this allows the end-user to force the unit to receive on a specific optical line if desired
to support periodic maintenance.
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The IE-iMcV-T1-Mux/4 + Ethernet offers the following features:
• Four T1 ports with RJ-48 connectors
• One full bandwidth Ethernet 10/100BaseT port (specific model)
• 1+1 protection switching via two SFP-based optical ports (specific model)
• DDMI supported on SFP ports
• One end-to-end serial RS-232 port on an RJ-45 connector, supporting up to 120K
baud rate
• Local CLI management console port on a Mini Jack connector
• Remote management capability through iMediaChassis series with SNMP
Management
• AIS generation on signal loss on all T1 interfaces
• SNMP Alarm TRAP reporting in managed chassis
• AutoCross for the Ethernet port
• Last Gasp on remote power loss
• Supports all MSA-compliant SFPs, 155mpbs
• Link Fault Pass-Through (LFPT)
• Bandwidth control, 10/100 Frc/Adv, Flow Control, FXLL
The IE-iMcV-T1-Mux/4 + Ethernet module is a dual-wide iMcV module.
Compatible chassis include the following:
•
•
•
iMediaChassis series
MediaChassis series (2 slot models )
IE-MediaChassis series (2 slot models)
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Product Application
The IE-iMcV-T1-Mux/4 + Ethernet delivers 4 T1 lines to a customer's site over a
protected, dedicated fiber line. In addition, one serial RS-232 line and one
10/100BaseT Ethernet line can be carried at the same time. All configurations run at
full line rates with no interaction.
10/100BaseT
10/100BaseT
(1 Port)
(1 Port)
ISP Internet
Customer
LAN
T1-Mux
(Subscriber)
T1
(4 Port)
-
T1 Mux
Dedicated
Fiber
(Network)
T1
(4 port)
Customer
PABX
TDM Network
PSTN
Console RS232
Host
Remote
Serial Port
Console
Serial Port
Console
Dedicated
Fiber
Protection
(1+1)
Local Far End
Remote Far End
Managed Modules
The IE-iMcV-T1-Mux/4 + Ethernet modules are installed as a Host/Remote pair; the
fiber connection is IMC proprietary. Host or Remote configuration is selected by an
onboard DIP Switch setting. The Host/Remote pair can be remotely managed when
the HOST is installed in an iMediaChassis with an SNMP Management Module.
Configuration Control
Some iMcV-Modules offer Configuration Control; labels on the front faceplate are
identified as such. Configuration Control has been implemented to assist the end user
by retaining the latest configuration regardless of how that configuration was
implemented (via DIP Switch settings or SNMP), when an SNMP Management
Module is present in a managed chassis.
Historically, if an SNMP Management Module was installed in a chassis, SNMP would
override the DIP Switch settings of a module. Utilizing Configuration Control, the
end user has three conditions under which the configuration of an iMcV-Module may
be impacted:
•
Changing or installing an SNMP Management Module into a chassis with an IE-
iMcV-T1-Mux/4 + Ethernet populated in a chassis
-
The IE-iMcV-T1-Mux/4 + Ethernet will transfer its saved configurations to
the SNMP Management Module. If there is no SNMP Management Module,
the IE-iMcV-T1-Mux/4 + Ethernet will function based on its DIP Switch
settings. If the DIP Switches have not been changed, the stored
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configuration on the unit will be used. The stored configuration can be
retrieved from the SNMP Management Module or the DIP Switches.
Replacing the same type of iMcV-Module
•
•
-
If the DIP Switch settings are the same as the settings on the removed IE-
iMcV-T1-Mux/4 + Ethernet, the new IE-iMcV-T1-Mux/4 + Ethernet gets its
configuration settings from the SNMP Management Module.
-
If the DIP Switch settings are different, then the configuration of the module
is determined by the DIP Switch settings. (The settings are forwarded to the
SNMP Management Module and the values are saved.)
Installing a different model of an iMcV-Module
-
If another type of module is installed into the same slot in a chassis, the
SNMP Management Module clears the memory of the previous
configuration for that slot; the installed iMcV-Module configures itself and
its configuration is forwarded to the SNMP Management Module, where the
values are saved.
The SNMP Write Lock switch does not impact any iMcV-Module or IE-iMcV-Module
with Configuration Control. Removing and installing a new SNMP Management
Module will no longer impact these modules, either. However, if there is a mixture of
iMcV-Modules with and without Configuration Control, the Write Lock Switch and a
new SNMP Management Module must be taken into consideration.
If the command cleandb is applied to an SNMP Management Module, all the settings
for the modules will be removed, but the Configuration Control modules will still be
based on the last change made. Those without Configuration Control will be set to
their default settings.
NOTE
If the end user has a mixture of standard iMcV-Modules as well as Configuration Control
iMcV-Modules, it is important to understand how SNMP and DIP Switches will impact the
cards depending on their capability. Standard iMcV-Modules cannot be upgraded to
Configuration Control capability, so it is strongly recommended to set the DIP Switches on
the modules and then configure them via software to match the same settings.
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1+1 Protection on the Fiber Interface mode
The fiber transport is a 1+1 protection switched transport. It provides very fast (<50
mSec) switch-to-protect timing by transmitting the same information on both fibers at
the same time. The fiber receiver then chooses the fiber to receive based on the
validity of the line. Once the selection is made, the receiver will stay on that fiber line
until it enters a fiber defect state at which time another fiber selection process is
started (non-revertive switching). Once a switch-to-protect has occurred, a hold off
time (1 second minimum) is used to prevent another switch-to-protect from occurring
too soon after a protection switch.
If protection is not enabled, SFP port A will be used by default and no alarm or defect
information will be provided for SFP port B. The LEDs associated with the backup
fiber line will only be active if protection is enabled.
When protection is enabled, error reporting for the backup fiber line is limited to the
Signal LOS condition. Signal LOS will generate an SFP Down trap.
A Remote Alarm Indication (RAI-F) signal is sent back to the fiber if the received fiber
is in BER or LOS defect condition. In this way the far end unit is alerted of a fault
condition on the local fiber line.
Serial Port Connection
10/100BaseT
Connector
RS-232
Connector
T1 RJ-48
Connectors
SFP
Ports
Console
The IE-iMcV-T1-Mux/4 + Ethernet includes a console serial port. To establish a link
between a module's console port and a local PC, connect the Mini Jack to DB9
adapter (optional accessory available through IMC Networks, part number
825-39950). This RS-232 serial connection provides access to the IE-iMcV-T1-Mux/4
+ Ethernet module CLI configuration screens. Set the computer/terminal for VT-100
emulation 38.4K baud, 8 data bits, 1 stop bit, no parity and no flow control.
,
Under the VT-100 emulation, set the backspace key to send delete.
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iView² Management Software
iView² is the IMC Networks management software designed specifically for the IMC
Networks “iMcV” family of modules. It features a GUI and gives network managers
the ability to monitor and control the manageable IMC Networks products.
iView² is available in several versions, including WebServer version 3.0, and can also
function as a snap-in module for HP OpenView Network Node Manager and other
third party SNMP Management software. For assistance in selecting the right version
of iView² for your operating system, please visit:
iView2 supports the following platforms:
•
•
•
•
Windows 2000
Windows XP
Windows Vista
Windows 7
Please see the SNMP Management Module for software configuration options.
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LED Operation
The IE-iMcV-T1-Mux/4 + Ethernet features diagnostic LEDs as explained below.
10/100BaseT Connector
LNK:
•
•
•
OFF when port is not linked/connected
Glows green when link is established
Blinks green during data activity
FDX:
•
OFF when port is not connected or when running at
half-duplex
•
•
Glows yellow when port is running at full duplex
Blinks yellow when collisions occur
T1 RJ-48 Connectors
ALARM:
STAT:
•
•
OFF during normal operation
Blinks red+green simultaneously
when CV errors detected on the T1
line
Glows red+green when loss of
service (LOS) is detected, OR
continuous bit errors are detected
on the T1 line at far end of the
optical line
Blinks red when local CV errors
detected on T1 line.
Glows red when LOS detected on
the local T1 line, OR
•
Off if not
equipped
Glows green
during normal
operation
•
•
•
Glows
red+green when
out-of-service or
when the port is
in a loopback or
test state
•
•
•
Glows red when
the Host to
Remote fiber
link(s) is down or
badly corrupted
when continuous errors are
detected on the local T1 line
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SFP Ports
One model offers two SFP (A and B) ports for 1+1 protection; a
second model offers one SFP without protection.
ACT:
•
•
•
Glows green when the SFP port is the active receive line.
OFF when the SFP is not the receive line
Glows red+green when the SFP port is manually forced to
be the active receive line
LNK:
•
•
Glows green when there is a valid link
Glows red when a loss of optical signal occur, LOF, or with
continuous optical bit errors
or
RAI
:
•
•
Off when no remote defects are detected
Glows red+green when remote LOS or BER detected
MSA
:
•
•
•
Off when no SFP is installed in the port
Glows green when no SFP alarms are detected
Glows red+green when SFP alarms or defects are detected
at remote end
•
Glows red when SFP alarms or misconfigurations are
detected locally, i.e., when the SFP is missing, or when SFP
speed is not at 155Mbps
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DIP Switch Assignments
DIP Switch Assignments
A single 10-position DIP Switch is located on the unit to set the configuration. The
switch positions are defined as follows:
Switch #
Function
Host/Remote
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Settings
Factory Default
1
2
3
4
5
6
7
8
9
OFF = Host, ON = Remote
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
10
NOTE
Switch #1 must be set to ON at the Remote location.
Switches #2 through #10 are reserved for factory use only and must be OFF for proper
operation.
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Installation Instructions
Each IE-iMcV-T1-Mux/4 + Ethernet module requires two slots in an iMedia Chassis
Series, MediaChassis/2 Series, or IE-MediaChassis/2 series. To install the module in a
chassis, remove the blank faceplates covering the slots where the module is to be
installed. Then slide the module into the chassis card guides until the module is
seated securely in the slots. Secure the module to the chassis by tightening the
captive screw.
All IE-iMcV-T1-Mux/4 + Ethernet units are shipped from the factory configured as
Host units. The IE-iMcV-T1-Mux/4 + Ethernet modules must be installed in pairs.
For two IE-iMcV-T1-Mux/4 + Ethernet units to properly operate together one unit
needs to be configured as a Remote. Configuration as a Host or Remote is controlled
via a DIP Switch setting (S1-1).
Small Form-Factor Pluggable Ports (SFP)
The fiber link on the IE-iMcV-T1-Mux/4 + Ethernet module is supported through one
or two SFPs (depending on the model) running at 155Mbps. Many SFPs, including
those from IMC Networks, feature enhanced diagnostics capabilities Data and
Diagnostic Management Information (DDMI). DDMI statistics provide real-time
access to transceiver operating parameters such as voltage, temperature, laser bias
current, and both transmitted and received optical power. DDMI information can be
accessed in iView2. Any MSA-compliant SFP, 155mbps, can be installed in one or
both SFP ports (model specific).
AutoCross Feature
The 10/100BaseT Ethernet port on the IE-iMcV-T1-Mux/4 + Ethernet includes an
AutoCross feature that automatically selects between a crossover workstation and a
straight-through connection depending on the connected device.
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Configuration Options
The following sections describe the configurable features.
From the CLI "Unit Configuration," use the "Factory Default" command to restore the
unit's default settings in the CLI, under Unit Configuration. This restores the card's
default configuration and resets the default username and password.
User: admin / Password: admin
Ethernet Port
If the Ethernet port is not used, it can be set to disabled via a console session or via
iView², to effectively block all traffic on this port.
Packet Size
The Ethernet port can accommodate packets up to 1916 bytes.
Auto Negotiation
The IE-iMcV-T1-Mux/4 + Ethernet ships from the factory with Auto Negotiation
enabled on the Ethernet port. In this mode, the port negotiates for speed, duplex
and flow control.
Forcing the Speed, Duplex Mode, and Flow Control
The Ethernet port on the IE-iMcV-T1-Mux/4 + Ethernet can be selectively advertised
or manually forced for 10 Mbps or 100 Mbps operation at Half- or Full-Duplex (i.e.,
10 Mbps Full-Duplex, 10 Mbps Half-Duplex, 100 Mbps Full-Duplex, etc.). Flow
control can also be enabled on the Ethernet port when the connecting equipment
supports this. These features can be enabled through iView²/CLI.
Bandwidth Control
The IE-iMcV-T1-Mux/4 + Ethernet includes bi-directional bandwidth control in 32
Kbps increments (configurable via iView2).
FX LinkLoss and LFPT
During normal operation, link integrity pulses are transmitted by all point-to-point
Ethernet devices. When an IE-iMcV-T1-Mux/4 + Ethernet receives valid link pulses,
it knows that the device to which it is connected is up, and that the cable coming
from that device is intact. The appropriate “LNK” (link) LED is lit to indicate this.
However, these signals are not normally transmitted across a normal store and
forward Ethernet bridge function. A failed Ethernet line on one end of the fiber link is
not forwarded to the Ethernet port at the other end of the optical transport. A failed
optical line is also not normally forwarded to the Ethernet port. The FX LinkLoss and
LFPT functions are used to enable these features.
Both the LinkLoss and LFPT features are set to "Disabled" by default.
FX LinkLoss (FXLL)
FX LinkLoss is a link integrity monitoring feature that forwards fiber link faults to the
RJ-45 DATA port to indicate that a fiber link fault has occurred. FX LinkLoss can be
enabled in iView²/CLI.
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Fiber Fault Loopback (FFL)
When a Fiber LOS is detected, the unit sends a Remote Alarm Indication) back to the
fiber in the opposite direction. The reception of fault indication on the fiber line
inhibits sending a LINK signal to the Ethernet port. This function can be enabled at
both ends of the fiber line without causing a "lock-up" condition and will
automatically clear when the fault is cleared. FFL can be configured at both ends of
the fiber line with no lock-up condition.
Last Gasp
The iMcV-FiberLinX-II includes a Last Gasp feature, which sends a trap Flinx Unit
Down for the Host unit or a Flinx Remote Unit Down for the Remote unit (as seen in
iView²) when the power to the module fails.
T1 Ports
Alarm Level
T1 lines are defined as LOST when no signal is received as defined by ITU G.775
specifications Loss Of Signal (LOS), and are considered in error with a BER of 10^-6.
If either of these conditions lasts for more than 2.5 seconds, an ALARM state is
declared. This error condition must be absent for 10 seconds for the alarm state to
clear.
The starting and ending event of all alarm conditions will generate an SNMP TRAP
when the unit is installed in a managed chassis and set to the in service state. During
initial installation or normal maintenance, the end-user can place the unit in the Out-
Of-Service (OOS) state to inhibit unwanted SNMP TRAP alarms.
Alarm Conditions
•
•
•
•
•
•
Last gasp (remote lost power)
T1 Port Up
T1 Port LOS
Fiber port Up / LOS
SFP removed/installed
Service state change
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Loopback
Each T1 port can be tested in loopback mode by enabling either a Host loopback or
Remote loopback test path. This capability allows the end-user to help troubleshoot
and isolate system problems such as improper/broken line terminations, cables or
malfunctioning equipment.
With Host loopback, the T1 copper port, connected to the Host unit, is looped back
to that port within the local unit. T1 data coming from the remote unit to that port
over the optical link is also looped back to the remote unit at the same point within
the local unit.
With remote loopback, an T1 line connected to the Host unit is transported onto the
optical link and looped back within the remote unit back onto the optical link
without passing onto the copper T1 line of the remote unit. The remote’s incoming
T1 copper line is also looped-back to the copper line within the remote unit.
The default value for loopback is "none."
Copper
Fiber
Fiber
T1
T1
T1 Mux HOST
T1 Mux REMOTE
Fiber
Copper
HOST
Remote
Loopback
Loopback
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Console Screens
Configuration Using the Console Port
The following section describes configuration using the console screens. The Remote
module is only configured through the Host.
Login Screen
After running through an initial self test, the log-in screen is displayed (the diagnostic
information displayed below is for illustration purposes only and may differ from the
actual screen display):
The username is case sensitive with a maximum length of 16 characters. After a
username is entered, the system prompts the end-user for a password. Note that the
default user name and the default password is admin
.
Password is case sensitive with a maximum length of 16 characters. After the system
validates the username and password, the Main Menu is displayed.
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Main Menu
From the main menu, the end-user can view essential unit configuration data and a
clock indicating when the displayed information was last refreshed.
Menu Options
1
2
3
4
5
6
7
8
= Refer to the Unit Configuration Screen
= Refer to the Port Alarm Status screen
= Refer to the SFP Line Status screen; SFP DDMI alarms are also displayed
= Refer to the Ethernet Port Configuration screen
= Refer to the Ethernet Port Status screen
= Refer to the T1 Port Configuration screen
= Refer to the T1 Port Status screen
= Logout
NOTE
On all configuration screens, the title is the same as the "option" selected from the
previous screen.
Unit Configuration Screen
The unit configuration screen displays the names of the Host and Remote units as
well as the service state, whether fiber protection is enabled and the SFP BER alarm
level. In addition, the unit time can be set from this screen and the username and
password can be set/reset.
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The screen displays the current status for items 1 through 8. For security reasons, the
current username and password are not displayed.
For items 1 through 8, enter the number of the menu item to be changed, and then
enter the new value when prompted. The unit and port names can be assigned by
the end-user and are used in SNMP associated TRAP alarm messages.
Port Alarm Status Screen
The Port Alarm Status screen displays the status of the Host and Remote alarms on
each of the unit's ports. This screen can be refreshed as needed to display current
data.
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SFP Line Status Screen
The SFP Line Status screen displays the status of the Host and Remote SFP links.
The detailed SFP information may be viewed by entering "1" for SFP A or "2" for SFP B.
Displayed data includes the manufacturer name, code, part number and revision
number. These values may not be modified.
For SFP modules that support DDMI values for temperature, voltage, diode current
and optical receive/transmit, levels can be obtained through SNMP Management
Module.
Ethernet Port Configuration Screen
The screen displays the current values for items 1 through 11 for both the Host and
Remote site.
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Enter the number of the menu item to change its configuration, and then enter the
new value(s) when prompted.
Ethernet Port Status Screen
This screen displays the current Ethernet port status for both the Host and Remote
site.
T1 Port Configuration Screen
Use this screen to access the loopback and name details for each of the four T1 ports.
Enter the number of the menu item to edit, and enter the new value(s) when
prompted.
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Host T1 Port Setup Screen
Enter the number of the menu item to edit, and enter the new value(s) when
prompted.
T1 Port Status Screen
Use this screen to display the current status for each of the four T1 ports for the Host
and Remote units.
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Fiber Optic Port Verification
As a troubleshooting aid, the fiber optic ports can be verified by placing a physical
loopback optical line on the ports and verify the LED behavior as shown:
The ACT LED will arbitrarily be configured to either the A or B fiber line. The RAI LED
is RED/GREEN indicating that there is something wrong at the far end of the fiber line
(in this case, the remote unit is missing). The ALARM LED is RED because the T1 port
is not connected. The STAT LED is RED when there is no fiber link but turns GREEN
when the fiber link is valid.
NOTE
The T1 ports are all sending AIS. However, with the fiber looped, it is because of
the LOS on the T1 port. Without the fiber looped, it is because of the LOS of the
fiber port.
WARNING
An optical loopback will also loop back the Ethernet port. If the network cannot
tolerate this, remove the Ethernet port connection before connecting the fiber
loopback.
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T1 Port Verification
By placing a physical loopback connection on the T1 port, a valid signal can be
detected by each individual T1 port to verify its operation. Without the fiber looped,
the ALARM LED for the looped T1 port will show RED/GREEN indicating there is a
problem at the far end of the fiber transport (In this case the far end unit is missing)
and the STAT LED is RED because the fiber is in LOS. With the fiber looped, the T1
port will only show a normal GREEN STAT LED.
10/100BaseT Ethernet Mating Connector Pinout
The following table lists the pin configuration for the standard RJ-45 Ethernet
connector.
Pin
1
2
3
4
Signal
Transmit +
Transmit -
Receive +
None
5
None
6
7
Receive -
None
Pin 1
8
None
NOTE
MDI/MDIX AutoCross function will automatically transpose the Transmit and
Receive lines if required.
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T1 Port Mating Connector Pinout
The following table lists the pin configuration for the standard RJ-48 T1 port mating
connectors.
Pin
1
2
Signal
Receive 1 (Tip in to unit)
Receive 2 (Ring in to unit)
None
3
4
5
6
Transmit 1 (Tip from unit)
Transmit 2 (Ring from unit)
None
7
8
None
None
Pin 1
NOTE
The pin configuration is consistent with a DTE interface.
RS-232 Port Mating Connector Pinout
The following table lists the pin configuration for the RS-232 port mating connector.
Pin
1
Signal
None
2
None
3
None
4
5
6
7
Signal Ground
Receive Data (in to unit)
Transmit Data (out of unit)
None
Pin 1
8
None
This port provides an end-to-end RS-232 line that can support up to 120K Baud and
is transparent to all RS-232 protocols.
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RS-232 Serial Console Port
The following table lists the pin configuration for the RS-232 3-pin Mini Jack mating
connector for the console serial port.
Pin
Tip
Ring
DB9-F Pin#
Signal Name
Transmit
Receive
Direction
Out of Unit
In to Unit
Return
2
3
5
Sleeve
Return
Sleeve
Ring
Tip
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Troubleshooting
•
All IE-iMcV-T1-Mux/4 + Ethernet units are shipped configured as Host units
via DIP Switch #1 = OFF. The Remote unit should be set to DIP Switch #1
= ON. Be sure to confirm that the iMcV-T1-Mux/4 card is set correctly
when used.
•
The fiber transport is independent of all other ports and should be
established first. If this is not possible, a physical fiber loopback can be used
for fiber port verification. A fiber loopback will cause all connected ports to
loop back their respected data.
•
•
If the fiber is not connected, all T1 ports will send the all-ones, AIS signal.
This can be physically looped back to verify T1 port operation.
When a replacement module is added into the same slot of the chassis, the
SNMP managed configuration may become lost or incomplete. To avoid
this situation, wait at least two minutes between removing the old module
and inserting the new module.
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Specifications
Power Consumption (Typical):
0.96A @ +5 VDC
Operating Temperature:
+32°F to +158°F (0°C to +70°C)
Storage Temperature:
-40°F to +158°F (-40°C to +70°C)
Humidity:
5% to 95% (non-condensing)
Dimensions:
Dual Slot iMcV module
MTU:
Maximum packet size up to 1916 bytes
Standards/Compliance
•
•
•
•
•
•
•
•
IEEE 802.3x Flow Control
IEEE 802.3i 10Base-T twisted pair
IEEE 802.3u 100Base-TX twisted pair
IEEE 802.3u 100Base-FX or SX fiber
ITU G.703
ITU G.775
ITU G.824
GR-820-CORE
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Definition of Terms/Acronyms
The following are terms and phrases used within this manual, or which are found in
documents associated with this equipment.
1+1
The Term “1+1” refers to line protection where identical
information is transmitted on two redundant lines. The Receiver
chooses the “best” line to use based on the BER of the line.
AIS
Alarm Indication Signal: Used in T1 signaling, the AIS is a
predetermined bit stream (all ones) that is transmitted (forwarded)
upon the loss of an incoming T1 signal or when the T1 signal is
disrupted.
AMI
Alternate Mark Inversion: A bipolar coding scheme used to
accommodate the ones density requirements of T1 lines in such a
way that successive ones, or marks, must alternate in polarity. AMI
is an older standard, but is still used for transporting voice
transmissions.
AN
Auto Negotiation: A signaling protocol used by an Ethernet PHY to
determine the characteristics (speed, duplex mode) of its “link
partner” and configure itself automatically
B8ZS
Bipolar with 8-Zero Substitution: A line code used for T1 which
converts any string of 8 zeros of a DS-1 signal into a code which at
the far end is converted back to eight zeros. B8ZS coding actually
inserts Bipolar Violations (BPVs) that are realized at the next
multiplexer point and are taken out of the signal.
BER
CLI
CV
Bit Error Rate: The percentage of bits with errors divided by the
total number of bits that have been transmitted, received or
processed over a one second time period.
Command Line Interface: An interface screen, often DOS-based,
used for system management and diagnostics requiring the user to
type commands rather than use a GUI
.
Code Violation: An anomaly of a decoded physical-layer signal
stream resulting in coding (signaling) error(s). Noise bursts or
intermittent connections on a link are the usual causes of code
violations; an HDB3 coding error.
DDMI
Digital Diagnostic Monitor Interface: A defined serial interface and
data format typically used to access SFP internal information
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FFL
Fiber Fault Loopback: When the fiber line fails, the Ethernet port
that is being forwarded over the fiber line is forced out of LINK.
Similar to the Fiber Alert function.
GUI
Graphical User Interface: Software that provides a visual interface
to enable an end-user to manage and monitor network devices.
IS
In-Service stat is the normal state of an active port with normal
error reporting.
LED
Light Emitting Diode: A small stack of lights to indicate link,
duplex or other options.
LFPT
LOF
Link Fault Pass-Through: LFPT can be enabled via iView² or
through the console port.
Loss Of Frame: An error condition where the receiver/decoder
misses detection of the framing signal.
LOS
Loss Of Signal: An error condition where the receiving line
interface unit does not detect a signal.
MDI/MDIX
Media-Dependent Interface/ Media-Dependent Interface
Crossover. The ability of an Ethernet port to automatically detect
and configure its cabling connections to accommodate crossover
or non-crossover wiring, depending on its link partner and cabling.
MIB
Management Information Base: A database of objects that can be
monitored by a network management system. Both SNMP and
RMON use standardized MIB formats that allow any SNMP and
RMON tools to monitor any device defined by a MIB.
MSA
Multi-Source Agreement (SFP): The standard an SFP must meet to
be compatible in network devices.
NOC
OOS
Network Operations and Control Center
Out-Of-Service, OOS is used by the CRAFT personnel to turn OFF
the alarm reporting so they can service the line without causing
alarm TRAPS to be sent to the NOC Center. The LEDs display a
line status but do not report any line related alarms back to the
NOC. A card removal or insertion is still reported, but a PORT
up/down or changes to its configuration are not.
POP
Point(s) Of Presence: The demarcation point where carrier owned
equipment is located at the customer site.
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RAI
Remote Alarm Indication: Status information received from the
line indicating there is an alarm condition at the far end of the
transport.
SFP
Small Form-Factor Pluggable: An industry standard optical
pluggable module.
SNMP
Simple Network Management Protocol: A set of protocols for
managing complex networks over a standards-based IP network.
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IMC Networks Technical Support
Tel: (949) 465-3000 or (800) 624-1070 (in the U.S. and Canada);
+32-16-550880 (Europe)
Fax: (949) 465-3020
E-Mail: [email protected]
Web: www.imcnetworks.com
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Fiber Optic Cleaning Guidelines
Fiber Optic transmitters and receivers are extremely susceptible to contamination by
particles of dirt or dust, which can obstruct the optic path and cause performance
degradation. Good system performance requires clean optics and connector ferrules.
1. Use fiber patch cords (or connectors, as appropriate) only from a reputable
supplier; low-quality components can cause many hard-to-diagnose problems in
an installation.
2. Dust caps are installed at IMC Networks to ensure factory-clean optical devices.
These protective caps should not be removed until the moment of connecting
the fiber cable to the device. Should it be necessary to disconnect the fiber
device, reinstall the protective dust caps.
3. Store spare caps in a dust-free environment such as a sealed plastic bag or box
so that when reinstalled they do not introduce any contamination to the optics.
4. If it is suspected that the optics have been contaminated, alternate between
blasting with clean, dry, compressed air and flushing with methanol to remove
particles of dirt.
Electrostatic Discharge Precautions
Electrostatic discharge (ESD) can cause damage to any product, add-in modules or
stand alone units containing electronic components. Always observe the following
precautions when installing or handling these kinds of products
1. Do not remove unit from its protective packaging until ready to install.
2. Wear an ESD wrist grounding strap before handling any module or component.
If the wrist strap is not available, maintain grounded contact with the system unit
throughout any procedure requiring ESD protection.
3. Hold the units by the edges; do not touch the electronic components or gold
connectors.
4. After removal, always place the boards on a grounded, static-free surface, ESD
pad or in a proper ESD bag. Do not slide the modules or stand alone units over
any surface.
WARNING! Integrated circuits and fiber optic components are
extremely susceptible to electrostatic discharge damage. Do not
handle these components directly unless you are a qualified service
technician and use tools and techniques that conform to accepted
industry practices.
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Certifications
CE: The products described herein comply with the Council Directive on
Electromagnetic Compatibility (2004/108/EC).
European Directive 2002/96/EC (WEEE) requires that any equipment that bears this
symbol on product or packaging must not be disposed of with unsorted municipal
waste. This symbol indicates that the equipment should be disposed of separately
from regular household waste. It is the consumer’s responsibility to dispose of this
and all equipment so marked through designated collection facilities appointed by
government or local authorities. Following these steps through proper disposal and
recycling will help prevent potential negative consequences to the environment and
human health. For more detailed information about proper disposal, please contact
local authorities, waste disposal services, or the point of purchase for this equipment.
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19772 Pauling • Foothill Ranch, CA 92610-2611 USA
TEL: (949) 465-3000 • FAX: (949) 465-3020
© 2010 IMC Networks. All rights reserved.
The information in this document is subject to change without notice. IMC Networks assumes no responsibility for any
errors that may appear in this document. IE-iMcV-T1-Mux/4 + Ethernet is a trademark of IMC Networks. Other brands
or product names may be trademarks and are the property of their respective companies.
Document Number 57-80402-00 A1
December 2010
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