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Section 400-Programming
T1 Trunk Closure
Software Version: CPC-B Versions 5.0 to 6.02
Address: Master Cabinet: FF1 8# 7# 1# (1-4)# (1-8)# (0 or 1)#
Slave Cabinet:
Description
In CPC-B Versions 5.0 to 6.02, use this address to facilitate Fractional T1,
where not all of the 24 available channels on the T1 card are used.
If the trunk ports on the highest-numbered analog trunk card are divided
between T1 and analog, use this address to close the trunk ports dedicated to
T1 -- and open the trunks to be used for analog. (see illustration below for an
example)
Use the "Number of T1 Channels" address (FF1 8# 4# 4/5# 1# 2#) to tell the
system how many channels you want to use. The system will automatically
assign one analog trunk port for each T1 channel used. Channel #1
automatically uses the highest-numbered port on the highest-numbered trunk
card; Channel #2 uses the next highest port; etc.
Figure 1-3. Trunk Closure Example in a DBS 96 (32-trunk system)
DBS-2.3/9.2-400
FF1 8# 7# 2# (1-4)# (1-8)# (0 or 1)#
Trunk Cards (each card has 8 trunk ports,
Card 1
1
2
3
4
5
6
7
8
In this example, the following was
programmed:
Trunk Configuration set to "T1 and Analog" (see FF1 8# 4# 4# 1# 1#).
Number of T1 Channels set to "12" (see FF1 8# 4# 4# 1# 2#).
T1 Trunk Closure set T1 trunks 5-8 on Card 3 to "Close":
FF1 8# 7# 1# 3# (5 thru 8)# 1#
DBS Manual - Revised April 2000
Chapter 1. System Programming (FF1)
numbered as shown)
Card 2
Card 3
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
Card 4
1
2
3
4
5
6
7
8
T1 Card
(channels)
12
11
10
9
8
7
6
5
4
3
2
1
Page 1-203
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