Section 300-Installation Chapter 4. Trunks and Lines
DBS-2.3/9.2-300 DBS Manual - Revised April 2000 4-15
Table 4-11. T1 and analog trunk assignments, DBS 96
Trunk Assignments for Double-Cabinet Systems
• When T1 is used in a double-cabinet system, the number of T1 channels
that can be assigned in each cabinet depends on the master/slave
designation.
The following table shows the maximum number of T1 channels that can
be assigned in two-cabinet systems.
Table 4-12. Maximum T1 assignments for two-cabinet systems
• Two-cabinet systems use the same trunk numbering scheme as single-
cabinet systems. Analog trunks are numbered from “1” upward; T1 trunk
channels are numbered downward from the highest channel used.
Trunk
Number
24-Channel T1 Fractional T1
using 16
Channels
Fractional T1
using 8 Channels
1 Analog trunk 1 Analog trunk 1 Analog trunk 1
↓↓↓↓
8 Analog trunk 8 Analog trunk 8 Analog trunk 8
9 T1 channel 24 Analog trunk 9 Analog trunk 9
↓↓↓↓
16 T1 channel 17 Analog trunk 16 Analog trunk 16
17 T1 channel 16 T1 channel 16 Analog trunk 17
↓↓↓↓
24 T1 channel 9 T1 channel 9 Analog trunk 24
25 T1 channel 8 T1 channel 8 T1 channel 8
↓↓↓↓
32 T1 channel 1 T1 channel 1 T1 channel 1
System Size Master Slave
DBS 40 + DBS 40 8 analog trunks 16 T1 trunks
DBS 72 + DBS 72 16 analog trunks 24 T1 trunks
DBS 96 + DBS 40 24 T1 trunks
8 analog trunks
16 T1 trunks
DBS 96 + DBS 72 24 T1 trunks
8 analog trunks
24 T1 trunks
DBS 96 + DBS 96 24 T1 trunks
8 analog trunks
24 T1 trunks
8 analog trunks
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