Northern Telecom DNC-50 Installation Manual page 161

154 Installing a -48 Vdc Power Distribution System
(14) Detach the connector backshell from the power converter located in cabinet 4
(15) Remove the horizontal jumper connecting cabinets 4 and 5, and the vertical
(16) Remove the two screws securing the distribution box to the rear panel of
(17) Remove the two nuts securing the distribution box to cabinet 5.
(18) Remove the distribution box from cabinet 5.
(19) Attach power cable #2 (removed from cabinet 5) to the power converter in
(20) Lightly secure the connector backshell to the cabinet backpanel using two
(21) Engage the power converter to ensure alignment.
(22) Fully tighten the screws holding the backshell.
(23) Insert the cable end through the strain relief in the top of the distribution box
(24) Securely tighten the clamping screws of the strain relief.
(25) Place the ring terminal from the green wire over the stud in the lower part of
(26) Place the flat washer over the ring terminal, and secure with the nut removed
Practice 450-1011-201
by removing the two 1/2-inch screws holding the backshell to the rear panel of
the cabinet.
jumper on cabinet 5.
cabinet 5.
cabinet 3.
Note: There should be two power converters located in cabinet 3, and none in
cabinet 4.
1/2-inch screws.
located in cabinet 2. Ensure that approximately 1/4-inch of cable jacket
protrudes through the strain relief and into the box.
the distribution box.
previously.