Nortel Compact Ics 6.0 Installer Guide

Problems with optional equipment / 271
P0992669 03Compact ICS 6.0 Installer Guide
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 rms across  
600 Ω.
Music on...

272 / Problems with optional equipment
Compact ICS 6.0 Installer GuideP0992669 03
4. Check the wiring between the music source and the 50-pin connector. 
See the wiring charts in the Installation section.
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 (for example, less 
than 3,300 ohms) can be connected. The output level must be less than 
one volt. 

Problems with Trunk Cartridges / 273
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Problems with Trunk Cartridges
Check first for user configuration problems, then wiring and programming 
errors before replacing Norstar equipment.
Trunk Cartridge trouble
1. Check that the cartridge is properly inserted in the ICS.
2. Run a Maintenance session to ensure that the cartridge is not disabled.
If the problem persists:
1. If AC power is present and the LED indicator on the ICS is off, see the 
section on ICS down...

274 / Problems with BRI service
Compact ICS 6.0 Installer GuideP0992669 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...

Problems with BRI service / 275
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“Out of service” is displayed when a BRI line is 
selected (LED for loop is lit)
Possible problem
The loop is configured incorrectly. Layer 1 is present but Layers 2 and 3 
are not working.
Solution
1. Verify that the SPIDs and Network DNs are programmed correctly in 
Hardware.
2. Verify that the loop and lines are provisioned.
All the LEDs on a BRI Card are flashing
Possible problem
The card is not configured properly.
Solution...

276 / Problems with BRI service
Compact ICS 6.0 Installer GuideP0992669 03
Caller hears one ring and then a fast busy signal 
when placing a call on a BRI line
Possible problem
CACH or EKTS, which are not supported by Compact ICS, is included in 
the ISDN services package.
Solution
1. Contact your service provider and ensure that CACH or EKTS are not 
part of the ISDN services package. These services must be turned off 
at the switch.
2. Verify that the Network DNs have been programmed correctly, and...

Problems with the NT1 / 277
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Problems with the NT1
The table gives the meaning of the indicators found on the stand alone NT1 
manufactured by Nortel. Other models or makes of NT1 may have different 
indicators. For more information about the NT1, see the ISDN chapter.
NT1 status indicators  
 IndicatorStateMeaning
off
on
flashingpower is unavailable
power is available
system is on backup power
S or Toff
on
flashingnormal operation
no synchronization with...

278 / ICS down
Compact ICS 6.0 Installer GuideP0992669 03
ICS down
If AC power is present and the indicator light on the ICS is off, replace the 
fuse in the ICS (see illustration on next page). 
1. Disconnect all central office and station lines from the ICS. Power 
down the ICS by unplugging it.
2. After powering down the ICS, use fingernails or screwdrivers to pinch 
the tabs on the fuse drawer and remove it from the ICS. The cables can 
easily and safely be pushed aside to reach the fuse drawer.
3....

ICS down / 279
P0992669 03Compact ICS 6.0 Installer Guide
Changing a fuse    
Fuse drawer
Bottom view of ICS Fuse 

280 / Problems for network or remote users
Compact ICS 6.0 Installer GuideP0992669 03
Problems for network or remote users
Remote feature code gets no response
Possible problem
A Norstar user has called into another Norstar system and is trying to 
activate a remote feature but gets no response after dialing the feature code.
Solution
1. If a COS password is needed for remote access, make sure the user has 
entered the appropriate password.
2. Make sure that the remote caller is dialing the feature code...