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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Install and Wire Telephones and Other Equipment
Page 5-28TN1654 DS1 Converter (Release 6r Only)
5
1. Connection to the remote-located system is the same as that shown in
Figure 5-12
and Figure 5-13.
Table 5-10
shows the “Y” cable lengths and associated comcode numbers.
NOTE:
The distinction between facility types is important when using TN1654
circuit packs. The facility used to carry control channel messages between
the pair of DS1 converter circuit packs and all packet traffic is known as the
primary facility. The facility used to backup and takeover for the primary
facility in the event of primary facility failure is known as the secondary
facility. The TN1654 allows either facility, A or B, to be a primary channel.
The control channel is restricted to only the A or B facilities. This permits full
24-channel access (T1) or 31-channel access (E1) for facilities C and D to
support user traffic.
Install the Circuit Pack and Cabling (E1 Only)
The E1 installation is similar to the T1 installation except the H600-348 Quad
Cable and the Channel Service Unit are not used.
NOTE:
The H600-348 Quad Cable can be used on E1, 120 Ohm installations.
1. Install a “Y” cable between the DS1 Converter connector and the
Expansion Interface connector. See Figure 5-12
. Also refer to Table 5-10
for the “Y” cable lengths and associated comcode numbers.
2. Be sure to label the cables as they are installed.
Table 5-10. “Y” Cable Lengths
Length Description Comcode
14 Inches (35.5 cm) TN1654 to adjacent Expansion Interface
circuit pack or TN573B Switch Node
Interface circuit pack in same carrier
847245750
70 Inches (177.8 cm) TN1654 to Expansion Interface circuit
pack or Switch Node Interface in another
carrier
847245768
14 Inches (35.5 cm) TN1654 to fiber optic transceiver
(DC-powered cabinets only). This cable
is for intercabinet cabling only.
847245776
14 Inches (35.5 cm) TN1654 to adjacent TN570C Expansion
Interface circuit pack
847746641