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Connecting the Control Unit to the Network Interface
RJ21X Wiring Field Procedure
Follow this procedure to connect the RJ21X network interface to the control
unit:
1.
2.
3.
4.
5.
6.
7.
8.
Drill two diagonally opposite holes into the backboard for each piece of
hardware. Keep a 1/16-inch (1.6 mm) space between each piece of
hardware.
Mount the wire troughs and the termination blocks.
There is a wire trough above and below each termination block.
If necessary, repeat steps 1 and 2 for a second column.
Run the 25-pair amphenol cable on the RJ21X interface to the
termination blocks.
If more length is needed, use an A25D male-connector, single-ended,
25-pair, non-plenum cable.
As needed, mount the D-rings to properly dress the wires.
Cut off the amphenol connector on the cross-connect field side and
strip the wires for each of the 25 pairs.
Punch down the 25-pair wires to the termination block.
a. Route the wires through the fanning slots on the termination
block.
b. Insert the conductors into the designated 110 connecting blocks
already on the termination block.
c. Use the D-impact tool to seat the conductors (see Figure 4-4).
d. Remove any insulation fragments with a spudger.
Test the central office trunks for proper connection (see “Testing
Trunks” later in this chapter).
Wiring
4-9