Installing Upgrade Kit Nt4G13Ay (From Six To Seven Cabinets) - Northern Telecom DNC-50 Installation Manual

(14) Insert the stripped ends of the red, black, and white wires into the through
(15) Securely clamp the wires in place by tightening the screws.
(16) Replace the front cover plate and secure with the eight screws removed
(17) Place the label supplied with the kit over the existing dc serial ID label (on the

Installing Upgrade Kit NT4G13AY (From Six to Seven Cabinets)

This procedure describes how to expand a -48 Vdc system from six to seven
cabinets. The kit consists of one cable (NT4G09BH A0331639) and a label.
This procedure consists of adding one cable to the distribution box in cabinet 5, and
connecting the new cable to the power converter in cabinet 6. See Fig. 17-2 for the
locations of the input and distribution boxes, Fig.17-5 for the wiring for the bus bar,
and proceed as follows:
(1) Power down the -48 Vdc system by moving the circuit breaker located in the
(2) Remove the eight screws securing the front cover plate to the distribution box in
(3) Attach the new power cable #2 to the power converter in cabinet 6.
(4) Lightly secure the connector backshell to the cabinet backpanel with two
(5) Engage the power converter to ensure proper alignment.
(6) Tighten the screws holding the backshell.
(7) Remove the snap-in hole cover from the bottom of the distribution box located
(8) In the empty hole in the distribution box, install the strain relief supplied with
holes of the bus bars. Ensure that all of the strands of each wire are in the hole
and that each wire is in the correct bus bar.
Note: Maintain the color code on the wires so that the wires that are inserted
match the colors of those wires that were factory installed.
previously.
input jumper) after copying all of the appropriate information from the old label
into the correct fields on the new label (in permanent ink).
input box to the OFF position.
cabinet 5.
Note: In this configuration, there will be two power converters in cabinet 6.
1/2-inch screws.
in cabinet 5.
the new power cable #2.
Note: It may be necessary to remove the small access cover from the bottom of
the distribution box in order to tighten the locknut on the inside of the box.
Installing a -48 Vdc Power Distribution System 163
Practice 450-1011-201