Test Stratum 3 Clock (If Used-S8700 Multi-Connect Only) - Avaya S8700 Installing Manual

Test Stratum 3 Clock (if used—S8700
Multi-Connect only)
These procedures test the ability of the Stratum 3 clock to correctly provide timing and alarms
to the media server.
!
CAUTION:
The following procedures are destructive to DS1 data and should not be attempted while
DS1 facilities are active.
Check for Red LEDs
Turn on the Stratum 3 clock and wait 40-50 seconds to allow the system to complete the
1
on-board diagnostics before checking LEDs.
If there are any red LEDs, follow the procedures in
2
Stratum 3 Clock LED Indicators
Card LED Label
PAI REF A
PAI REF B
PAI ST A
PAI ST B
CI FAIL
ST3 FAIL
ST3 LOCK
ST3 HOLDOVER
ST3 FREE RUN
TOCA FAIL
TOCA PORT ALM
Verify Timing to the Media Server
1 To administer the Stratum 3 clock, type change synchronization and press
Procedure
Check that the CI circuit pack on the left is inserted properly.
Check wiring for DS1 in carrier A which connects the media
gateway to the CSU and the External Synchronization Clock at
the MDF through a Y-cable assembly. If all else fails to clear the
LED then replace the circuit pack.
Check that the CI circuit pack on the right is inserted properly.
Check wiring for DS1 in carrier B which connects the media
gateway to the CSU and the External Synchronization Clock at
the MDF through a Y-cable assembly. If all else fails to clear the
LED then replace the circuit pack.
Replace the ST3 card
Replace the ST3 card
Check wiring for its associated DS1 reference and replace the
circuit pack if necessary
Replace the circuit pack
Ignore this LED
Ignore this LED
Ignore this LED
Replace the circuit pack
Replace the circuit pack if necessary
October 2002
Testing the Complete Configuration
"Stratum 3 Clock LED Indicators".
Enter
213
.