Northern Telecom DMS-100 Series Manual page 61

Telephony channels
A T1 channel can be identified in four ways. The following is an example
of the four ways to identify the 22nd channel of the first T1 span:
•
In the MMI, the T1 channel is identified as Link A Channel 22. The
software that corresponds to the channel is a VSS that runs on node three
(SPN1). All Link A VSSs run on node three.
•
The primary HWLOC is reported by the primary T1 link handler that
runs on node 13. The primary HWLOC is 1-13-1-1-22, which reads as
frame 1, node 13, card 1, span 1, channel 22.
•
The secondary HWLOC is reported by the secondary T1 link handler
that runs on node 14. The secondary HWLOC is 1-14-3-1-22, which
reads as frame 1, node 14, card 3, span 1, channel 22.
•
The external equipment HWLOC is reported by the VSS. This is a
logical HWLOC that refers to the external cable rather than an actual
piece of hardware and it is denoted by putting 250 as the node number.
For example, 1-250-1-1-22 reads as frame 1, 250 that means nothing,
first pair of TIFNs, first span, channel 22.
The first row of Table 2-2 shows the example cited above as well as other
examples for channel 22 on all eight T1 spans.
Table 2-2xxx
HWLOC channel information
MMI
Link Channel
A 22
B 22
C 22
D 22
E 22
F 22
G 22
H 22
Primary
Node HWLOC
3 1-13-1-1-22
4 1-13-1-2-22
5 1-13-1-3-22
6 1-13-1-4-22
7 1-15-1-1-22
8 1-15-1-2-22
9 1-15-1-3-22
10 1-15-1-4-22
DMS VoiceMail Trouble-locating and alarm-clearing procedures SPM 02
Maintenance principles
Secondary
HWLOC
1-14-3-1-22
1-14-3-2-22
1-14-3-3-22
1-14-3-4-22
1-16-3-1-22
1-16-3-2-22
1-16-3-3-22
1-16-3-4-22
2-35
External
Equipment
HWLOC
1-250-1-1-22
1-250-1-2-22
1-250-1-3-22
1-250-1-4-22
1-250-2-1-22
1-250-2-2-22
1-250-2-3-22
1-250-2-4-22