DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures

9-264ATM-TRK (Circuit Emulation Service Circuit Pack)

9
j. Error Type 1537: LANHO bus timeout. The circuit pack is transmit ting too many bytes on the LAN bus for a sing le frame. This may be due to:
■on-board fault
■faulty data received on one of the circuit pack’s external ports
If the error occurs 3 times in 10 minutes, the b oard is isolated from the Packet Bus and the board is alar med. To clear the alarm:1. Restore this circuit pack to the Pac ket Bus with this command sequence:a. busyout board UUCSS
23 High-level path
Remote defect
Indicator: HP_RDI
The far-end is detecting a major problem with the signal that this
board is transmitting. The transmitted 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 interfac e.
2. Run test board UUCSS command; if the Test #1259 fails with
Error Code 23, 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 yellow LED
flash goes away.
3. If it does the problem is off-board.
4. If the yellow LED continues to flash, replace the circuit pack.
24 Loss of cell
delineation (LCD) On board ATM framer chip is not able to frame cells based on the
cell header.
1. Reset the board (reset board UUCSS).
2. If the error pe rs ists, replace the b oard.
27 SIGCON_DOWN
ATM switch high
level signal.
The board cannot co mmunicate with the ATM switch.
1. Busyout the board (busyout board UUCSS).
2. Test the board (test board long UUCSS).
3. If Test#1260 fails, replace the board.
4. If Test #1260 passes, make sure the ATM address on both the
DEFINITY and the ATM switch sides are the same for this
board.
5. If the address is the same, change the port on the ATM switch
side.
6. If the error is resolved, the problem is on the ATM switch port.
Table 9-118. Error type 1281 Aux Data and repair procedures — Continued
Aux
Data Alarm
Description Repair procedure
Continued on next page