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Installing a -48 Vdc Power Distribution System 151
Practice 450-1011-201
(17) Remove the two screws securing the distribution box to the rear panel of
cabinet 8.
(18) Remove the two nuts securing the distribution box to cabinet 8.
(19) Remove the distribution box from cabinet 8.
(20) Attach power cable #2 (removed from cabinet 8) to the power converter in
cabinet 6.
Note: There should be two power converters located in cabinet 6 and none in
cabinet 7.
(21) Lightly secure the connector backshell to the cabinet backpanel using two
1/2-inch screws.
(22) Engage the power converter to ensure alignment.
(23) Fully tighten the screws holding the backshell.
(24) Insert the cable end through the strain relief in the top of the distribution box
located in cabinet 5. Ensure that approximately 1/4-inch of cable jacket
protrudes through the strain relief and into the box.
(25) Securely tighten the clamping screws of the strain relief.
(26) Place the ring terminal from the green wire over the stud in the lower part of
the distribution box.
(27) Place the flat washer over the ring terminal, and secure with the nut removed
previously.
(28) Insert the stripped ends of the red, black, and white wires into the through
holes of the bus bars. Ensure that all 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.
(29) Securely clamp the wires in place by tightening the screws.
(30) Replace the front cover plate and secure with the eight screws removed
previously.