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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Compact Modular Cabinets
555-230-128
Issue 3
May 1998
Install and Cable the Cabinets
Page 1-61Install and Wire Telephones and Other Equipment
1
DS1 Tie Trunk Example
DS1 tie trunks provide a 1.544 Mbps (T1) or 2.048 Mbps (E1) digital data service
between 2 collocated systems or between the system and a data network. The
following cables can be used:
■ C6C connector cable — 50-foot (15.2 m) shielded cable with a 50-pin
male connector on 1 end and a 15-pin male connector on the other end.
Use to connect a DS1 tie trunk circuit pack to a Channel Service Unit.
■ C6D connector cable — 50-foot (15.2 m) shielded cable with a 50-pin
male connector on each end. Use to connect a DS1 tie trunks in
collocated cabinets.
■ C6E connector cable — 100-foot (30.5 m) shielded cable with a 50-pin
male connector on 1 end and a 50-pin female connector on the other end.
Use as an “extension” cable between the DS1 tie trunk circuit pack and
other connector cables.
■ C6F connector cable — 50-foot (15.2 m) shielded cable with a 50-pin
male connector on 1 end and a 3 inch (7.62 cm) stub on the other end.
Use to connect the DS1 tie trunk circuit pack to channel multiplexers
requiring hardwired connections. See Ta b l e 1 -8
for a pinout.
Collocated DS1 Tie Trunks
Two DS1 tie trunk circuit packs can be in collocated systems. A DS1 tie trunk
circuit pack in 1 system can connect to a DS1 tie trunk in another system. Use a
C6D cable if the distance is less than 50 feet (15.24 m). If the distance is greater
than 50 feet (15.24 m), use a C6E cable.
NOTE:
The maximum distance between cabinets is 1310 feet (399.3 m).
Table 1-8. Pinout of C6F Cable
Wire Color Lead Designation
Pin
Number
White/Green LI (High Side) 47
Green LI 22
White/Brown LO 48
Brown LO (High Side) 23
White/Slate LBACK2 49
Slate LBACK1 24