Coastcom D/I Mux III System User Manual page 82

1. Locate the two DB-15 or RJ-48 connectors on the shelf backplane. They are labeled DS1/CSU
T1-1 and DS1/CSU T1-2. See Figures 3-12 and 3-13 for details.
2. For single channel bank mode, plug the T1 transmission line into the T1-1 connector on the shelf
backplane; for drop-and-insert mode or dual channel bank mode, plug the T1 transmission lines
into the T1-1 connector and T1-2 on the shelf backplane.
Chapter 3. Installation
Figure 3-12. DB-15 T1 Female Connectors
Figure 3-13. RJ-48 T1 Connectors
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