user manual
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1486TONE-BD (Tone-Clock Circuit Pack)
10
come on and off wi thin 30 seconds. Then, all red LEDs of any
Expansion Port Networks will come on and go off within the next 30
seconds.
■ If the Tone-Clock circuit pack being replaced is in an Expansion
Port Network, the system will reset the EPN (EPN cold restart) and
all the red LEDs of the EPN will come on and go off within 30
seconds.
3. If the red LEDs come on but do not go off within 30 seconds, pull the
circuit pack out and reseat it. If the LEDs perform as expected this time,
continue with step 6. Otherwise, there may be a problem with the TDM
Bus; possibly a bent pin in the Tone-Clock circuit pack slot. Follow the
directions in the TDM-BUS maintenance section.
4. If the red LEDs did light, as explained above, then go to Step 6. If the red
LEDs do NOT light, as explained above, then go on to Step 5.
5. Restart the affected Port Network:
■ In the PPN, restart the system via the reset system 2 command.
■ In an EPN, restart the EPN by resetting its Expansion Interface
circuit pack via the reset board command, using the board
address 1a01 for EPN1 and 1a02 for EPN2.
If this step should fail, follow normal escalation procedures.
6. Test the new Tone-Clock circuit pack to verify that it is functioning
properly, using the test tone-clock PC long command, and verify that the
system is operational by placing several phone calls. Where possible, try
calls into, out from, and within the affected Port Network.
If the system is not operating properly, follow normal escalation
procedures.
Port Networks with Two Tone-Clock Circuit
Packs:
1. If both Tone-Clock circuit packs in a Port Network need to be replaced,
first replace and test the one that is in standby mode. Make sure that it is
healthy and active before replacing the second one. Make sure the
Tone-Clock circuit pack to be replaced is in Standby Mode by displaying
its status via the status port-network command or making sure its yellow
LED is off.
The active/standby state of a Tone-Clock circuit pack may also be
determined by looking at its LED. A continuously lit red LED on the
Tone-Clock circuit pack indicates a reported fault on one or more of the