DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-173ATM-EI (Expansion Interface Circuit Pack)
9
e. Error Type 131: an ATM-E I circuit pack has been removed from the slot for
5 minutes.
1. Insert the ATM-EI circuit pack into its administered slot.
2. Another way to resolve or prevent this alarm is to remove the
ATM-EI administration (see ‘‘Basic ATM PNC administration’’), then
remove the ATM-INTF administration (change circuit-pack).
It is possible that the ATM-EI could be held in reset by the EPN
Maintenance board and is not inserted in the system.
1. Try issuing the test maint P long command on the maintenance
board in the same port networ k.
f. Error Type 257: Expansion Interface Control Channel Test #316 failed
(board cannot co mmunicate on the TDM bus control c hannel). Follow the
suggested test p rocedures.
Error Type 258: The archangel is out of sequence (Aux Data indic ates
angel number).
Error type 259: the expansion archange l link (EAL) to the active ATM-EI
boar d is d own. See SYS-L INK.
g. Error Type 513: NPE Crosstalk test failed. The board is either writing to or
reading from a TDM time slot that is not allocated to the board.
1. Test the board (test board UUCSS) and follow the test procedures
suggested for this te st. In random tests of a single DSP during low
or high traffic, the same DSP may be tested more than onc e.
h. Error Type 769 and 770 (Error Type 771 below): board-degraded alarm
errors that result when the ATM switch is sending corrup ted cells or
excessive AAL/LAPD retransmissions (off-board ATM cell corruption
errors). These errors indicate the detec tion of a problem in handling ATM
cells that are received from the fib er interface.
Aux Data:
The problem is most likely
not
on the ATM-EI circuit pack reporting the
errors, but it could b e due to one or more of the following reasons:
■The fiber is not snugly connec ted to either the board or the ATM
switch.
■The PN packet bus is corrupting the cells. See Packet maintenance
objects (Aux Data 35 only).
Error
Type Aux
Data Description
769 34 AAL5 Excessive: retransmission req uests
769 35 LAPD Excessive: retransmission requests
770 25 ATM Uncorrectable cell headers - threshold
771 26 VPI,VCI pair unknown