Nortel Modular Ics 6.0 Installer Guide

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Possible problem
The line has been disabled for maintenance purposes.
Solution
Enable the line.
OR
If the line will be out of service for some time, configure 
another line to replace it on the telephone.
Possible problem
The loop or line has not been provisioned.
Solution
Provision the loop or line.
Selected line pool displays: No free lines 
If the user selects a line pool and the telephone displays No 
free lines, refer to this section for solutions.
Possible problem
If this happens often, there are not enough lines in the line pool 
to serve the number of line pool users.
Solution
If the line pool contains loop start trunks, enter programming 
and move under-used loop start trunks from other line pools 
into the deficient line pool.
OR
If the line pool contains E&M trunks, order more trunks from 
the telephone company or private network vendor. Install 
additional Trunk Cartridges of the appropriate type. In 
programming, add the new trunks to the deficient line pool. 
						

							562 / Problems with optional equipment
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Problems with optional equipment
Analog Terminal Adapter
1. Check the connections to the jack.
2. Check the connections to the ATA.
3. Disconnect the ATA and replace it with a working 
telephone. If the telephone still works properly, the ICS 
and/or the SM are operating properly.
4. Verify that the programming has been done as described in 
the Programming Record and the Norstar Analog 
Terminal Adapter Installation Card
.
5. If the trouble seems to be in the ICS or SM, double-check 
all wiring and programming options. Also refer to 
Problems with BRI service on page 570 or Data Module 
down on page 575.
OR
If the trouble seems to be with the ATA, disable the ATA 
and replace it with a known working one.
Running a Maintenance session to test an ATA
1. Run a Maintenance session to ensure that the ATA is not 
disabled. See Port/DN status on page 488.
2. Disable the port connected to the ATA using 
Port/DN status.
3. Enable the port connected to the ATA using 
Port/DN status. 
						

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Auxiliary ringer
1. If the auxiliary ringer is used for Schedules (Night, 
Evening, or Lunch service), ensure that Schedules is 
activated from the control telephone.
2. Check the wiring between the auxiliary ringer generator 
and the ringing device. Refer to the auxiliary ringer wiring 
chart.
3. Check the wiring between the auxiliary ringer generator 
and the distribution block:
Auxiliary ringer wiring
4. Ensure that the auxiliary ringer contacts are operating 
properly by checking with an ohmmeter across the 
auxiliary ringer pin contacts listed above.
5. Check that the auxiliary ringer pin contacts are 
programmed to operate in conjunction with any or all of 
the features in the auxiliary ringer programming chart 
shown below.
Auxiliary ringer programming
The current capacity of the Norstar relay contacts is 
50 mA DC. They are designed to operate with the auxiliary 
ringer generator, or equivalent.
FeaturePin
Auxiliary ring (Make)44 (Yellow-Brown)
Auxiliary ring (Common)19 (Brown-Yellow)
FeatureProgrammed in
Auxiliary ringerTerminals&Sets
Auxiliary ringerLines
SchedulesServices 
						

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External paging
1. Use the Button Inquiry feature (²¥â) to verify the 
feature of a programmable memory button.
2. Check the wiring between the 50-pin connector and the 
paging amplifier or between the connections shown in the 
external paging wiring chart.
External paging wiring
3. Test external paging ²ßÛ to ensure that it is 
working. The nominal output signal from the Norstar ICS 
is 100 mV across 600 Ω.
Music on Hold/Background Music trouble
Although Music on Hold and Background Music are separate 
features, they share the same wiring and customer-supplied 
music source.
1. Ensure that the proper feature access code (²¡ß) is 
turned on. Adjust the volume using the volume control bar.
2. Use the Button Inquiry feature (²¥â) to verify the 
feature on a programmable memory button.
3. If there is trouble with Music on Hold or Background 
Music, check Featr settings in System prgming.
4. Check the wiring between the music source and the 50-pin 
connector. See Wiring charts on page 241.
FeaturePin
Page out (Tip)40 (Black-Slate)
Page out (Ring)15 (Slate-Black)
Page (Make)41 (Yellow-Blue)
Page (Common)16 (Blue-Yellow) 
						

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5. Ensure that the music source is turned on, is operational, 
and the volume control is set properly.
6. Any music source with a low-output impedance, less than 
3,300 Ω, can be connected. The output level must be less 
than one volt. 
						

							566 / Problems with trunk cartridges service
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Problems with trunk cartridges 
service
Check first for user problems, then wiring and programming 
errors before replacing Norstar equipment.
1. Check that the cartridge is properly inserted in the ICS or 
Trunk Module.
2. Run a Maintenance session to ensure that the cartridge is 
not disabled.
If the problem persists:
If the Trunk Cartridge is installed in the ICS and the AC power 
is present and the LED indicator on the ICS is off, replace the 
ICS.
If the Trunk Cartridge is installed in a Trunk Module:
1. If AC power is present and the LED indicator on the Trunk 
Module is off, replace the Trunk Module.
2. Replace the fiber cable.
3. Replace the Trunk Cartridge.
4. Replace the Expansion Cartridge.
5. Replace the ICS.
Notify service provider of T1 or PRI signaling 
disruption.
Notify your T1 or PRI service provider before 
disconnecting your T1 or PRI lines, removing 
power to your system, or performing any other 
action that disrupts your T1 or PRI signaling. 
Failure to notify your T1 or PRI service provider 
may result in a loss of T1 or PRI service. 
						

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Refer to Installation on page 209 for information about 
replacing components.
Digital Trunk Interface trouble
1. Run a Maintenance session to verify that the Trunk 
Cartridge is enabled and that the lines are provisioned.
2. Check the LEDs on the front of the DTI:
Alarm:  steady yellow LED upon LOS
Error:   steady yellow LED during
Alarm:  steady red LED during transmit 
Error:   steady yellow LED upon 
Steady green LED while running
Steady red LED duringCFA, OOF CFA, or AIS CFA
Bit Error short term alarm
alarm indication signal
remote alarm indication CFA
downloaded firmware
Continuity loopback testReceive LEDs
Transmit LEDs
In service LED
Loopback test LED 
						

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Receive Alarm — yellow LED on indicates a problem 
with the digital transmission being received. This half-
duplex link is unusable.
Receive Error — yellow LED indicates a minor error as a 
result of degraded digital transmission. Possible causes are 
an ohmic connection, water ingress, or too long a loop.
Transmit Alarm — red LED on indicates an inability to 
transmit. Alarm indication signal (AIS) is being 
transmitted to the terminating switch. This half-duplex 
link in unusable.
Transmit Error — yellow LED on indicates a remote 
alarm indication (RAI) carrier failure alarm (CFA) is being 
sent to the terminating switch. If the Transmit Alarm is not 
on, this indicates a far-end or cable problem.
In service — a flashing green LED indicates that the T1 or 
PRI trunks are out of service because of a running 
loopback test, or because the DTI is being initialized.
Loopback test — red LED on while a continuity loopback 
test is running.
All LEDs flashing continuously — the DTI is being 
initialized.
3. Run a Maintenance session and any loopback tests as 
appropriate.
4. Check the pinout of the cable that connects the DTI to the 
termination point from the T1 or PRI service provider or 
the external channel service unit, and check that the cable 
is properly connected.
5. Check with your T1 or PRI service provider to see if 
through-fed repeaters are used on the T1 or PRI span. The 
DTI does not provide the DC connection required for 
through-fed repeaters.  
						

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If through-fed repeaters are used on the T1 span, disable 
the internal CSU and connect the DTI to an external CSU.
6. If the problem persists, replace the DTI.
Monitoring the T1 or PRI signal
If you are finding minimal faults with the T1 or PRI signal, 
you can monitor the signal to try and isolate the problem. The 
monitor jack on the DTI faceplate provides non-intrusive, 
bridged in-service monitoring of the T1 or PRI signal. Connect 
a protocol analyzer or other test equipment into the monitor 
jack to monitor the signal received from the network, and the 
signal transmitted by Norstar.
Notify service provider of T1 or PRI signaling 
disruption.
Notify your T1 or PRI service provider before 
disconnecting your T1 or PRI lines, removing power to 
your system, or performing any other action that 
disrupts your T1 or PRI signaling. Failure to notify your 
T1 or PRI service provider may result in a loss of T1 or 
PRI service.
Receive signal
Transmit signal 
						

							570 / Problems with BRI service
Modular ICS 6.0 Installer GuideP0992638 03
Problems with BRI service
Each LED on front of a BRI-ST or BRI-U Card corresponds 
with a loop, or indicates an overall state of the BRI 
connections.
The BRI card is connected to the ISDN network (U loop) 
but the LED for one of more loops is not lit
Possible problem
The physical connection or configuration for the network 
connection is not correct (no Layer 1).
Solution
1. Verify the wiring from the network to the distribution 
block.
2. Verify the wiring from the distribution block to the ICS.
3. Use a Meridian 2500 set to test for data on the BRI trunk.
4. Test the network connection by connecting Bellcore 
standard terminal equipment (TE) directly to the network.
BRI Card indicators
LED statusS, T or U-NT loopS or U-LT loop
onnormal operation
offno synchronization 
with ISDN networkno synchronization 
with TE
all flashingCard is not recognized by ICS (not configured in 
Hardware as a valid BRI loop). 
All the LEDs on 
a BRI Card are flashing 
on page 571.
bottom LED only flashingICS is downloading firmware to the card; card is 
new or has changed location, or Feature 
Cartridge has been upgraded