Demand test descriptions and error codes - Avaya Support

Table 37: Error type 1281 Aux Data and repair procedures 1 of 3
Aux
Data
Alarm
Description
15 SYSCLOCK
failed
16 Loss of Signal:
LOS
17 Loss of Frame:
LOF
18 Multiplexer
Section Alarm
Indication
Signal:
MS_AIS
Repair procedure
ATM-EI (Expansion Interface Circuit Pack)
The board is not locked to the TDM backplane clock signal. This is
probably due to a Tone-Clock problem.
1. Check for TDM-BUS or TONE-BD errors in the Error Log.
2. If no other problems are present, reset the circuit pack (reset
board location)
The fiber is not connected properly to the ATM-EI board or ATM
switch (or to the multiplexer section [MUX] if present).It is possible
that the board transceivers are not functioning properly.
1. Run test board location.
2. If Test #1259 fails, connect a fiber back-to-back in a looped mode
(one strand of fiber connecting the transmit transceiver to the
receive transceiver of the board) and see if the amber LED flash
goes away. If it does, the problem is off-board.
3. If the amber LED continues to flash, replace the circuit pack.
The fiber signal cot obtain or maintain STM-1/OC-3 framing.
1. Try to move the fiber on the ATM switch side to a different port.
This could require administration on the ATM switch.
2. If the problem persists, reset the circuit pack (reset board
location).
There is a major problem on the far end (between multiplexer
section [MUX] and the switch) that prohibits the circuit pack from
sending a valid signal.
1. See if the ports at the MUX and/or the ATM switch are connected
snugly.
2. Run test board location.
3. If Test #1259 fails with Error Code 18, connect a fiber
back-to-back in a looped mode (one strand of fiber connecting the
transmit transceiver to the receive transceiver of the board) and
see if the amber LED flash goes away.
4. If it does, the problem is off-board.
5. If the amber LED continues to flash, replace the circuit pack; if the
error persists, escalate the problem.
1 of 3
Issue 5 May 2009 137