Nortel DMS-100 Series Maintenance Manual page 386

9-22 Trouble isolation and correction
Maintenance limit, OOS limit, and audit interval carrier defaults
Item
Frame Loss
Slip
BpV (BER)
RTS
The DMS-100 switch counts frame losses, slips, BpV, and RTS for either
specified time or audit intervals. At the end of an accumulative audit
interval normally midnight to midnight, the counters are reset to zero.
A count below 1 in 10
below 1 in 10
Frame losses, slips, and RTS operations are also counted. If enough
occurrences accumulate, the ML and OL limits are reached.
Four classes of carriers are present:
The DS-1 links that connect SMS and RCS modules belong to classes
remote and protection line. Trunk indicates that the carrier is used as a trunk
to another central office. Timing indicates that the carrier is used as a timing
trunk to another central office.
Up to five carriers are posted in a MAP display. These carriers have
numbers zero through four. If the posted set contains more than five
carriers, the prompt
a second display. The next five carriers appear on this second display. The
operating company personnel can issue the
display additional carriers in the posted set.
The MAP display that appears in the following figure is a result of the
>DETAIL 0 REM
Data for this carrier is near the bottom of the MAP display.
297-8231-550 Standard 09.01 August 1998
ML
17
4
1 in 10
255
6
bits clears BpV ML. A calculated long-term count
5
bits clears the OL.
trunks
timing
remote
protection line.
Note: The ,
>BSY >OFFL
performed on lines that belong to the class remote.
MORE...
command. Carrier zero, circuit zero, is connected to SMS 0.
OS
511
255
6 3
1 in 10
255
, , and commands cannot be
>RTS >TST
appears. The menu command
>NEXT
Audit interval
10.0 min
10.0 min
4.8 s
10.0 min
produces
>NEXT
command again to