Avaya S8700 Maintenance Manual page 1001

ATM-TRK (Circuit Emulation Service Circuit Pack)
Table 8-120. Error type 1281 Aux Data and repair procedures — Continued
Aux Alarm
Data Description
19 Multiplexer
Section Remote
Defect Indicator:
MS_RDI
20 Loss of pointer:
LOP
21 Path Signal Error
(PSL)
(STM1/SONET)
22 High-level Path
Alarm Indication
Signal:
HP_AIS
555-233-143
Repair procedure
The far end is detecting a major problem with the signal that this
board is transmitting.
1. Make sure the ATM switch port (or a MUX port, if present
between ATM switch and the ATM-TRK board) is the same as
the ATM-TRK circuit pack's cable interface
2. Run test board UUCSS command.
3. If Test #1259 fails with Error Code 19, 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.
ATM framer chip is unable to access the payload part of the signal.
1. Reset the board (reset board UUCSS).
2. If the error persists replace the board.
The incoming signal payload is not set up for transmission of ATM
data.
1. Make sure the ATM switch port (or a MUX port, if present
between ATM switch and the ATM-TRK board) is the same as
the ATM-TRK circuit pack's cable interface.
The payload is invalid.
1. Make sure the ATM switch port (or a MUX port, if present
between ATM switch and the ATM-TRK board) is the same as
the ATM-TRK circuit pack's cable interface.
2. Run test board UUCSS.
3. If Test #1259 fails with Error Code 22, 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.
Continued on next page
Issue 1 May 2002 8-279