Specifications

7-36
Reference Guide
Model No.
Running Head
WAN Card User Screens and Settings WAN Card
Table 7-11. DS0-to-SLC-96 Time Slot Conversion
AIS/ALM
The AIS/ALM (Alarm Indication Signal/Alarm) setting allows you to specify the type of
“keep-alive” signal the system will generate on one T1/E1 link if the other one fails. The
AIS/ALM setting depends on the Frame Format selected for this WAN card. Table 7-6 shows
the AIS/ALM settings for cross-connect systems.
Table 7-12. AIS/ALM Settings
In a cross-connect system, the options available for D4 or ESF frame format are
none
(no AIS
signal is generated) and
tcodr
(transcoder operations). You can choose
tcodr
only after
selecting the Group option described later in this section.
Time Slot SLC Channel Number
Shelf A Shelf B Shelf C* Shelf D*
1 1 25 49 73
213376185
3 2 26 50 74
414386286
5 3 27 51 75
615396387
7 4 28 52 76
816406488
9 5 29 53 77
10 17 41 65 89
11 6 30 54 78
12 18 42 66 90
13 7 31 55 79
14 19 43 67 91
15 8 32 56 80
16 20 44 68 92
17 9 33 57 81
18 21 45 69 93
19 10 34 58 82
20 22 46 70 94
21 11 35 59 83
22 23 47 71 95
23 12 36 60 84
24 24 48 72 96
* Shelves C and D not supported in this release
System Frame Format AIS/ALM
Cross-Connect D4 none, tcodr
ESF none, frm, unfrm