Nortel 7400 Hardware Installation page 340

340 Chapter 39 Hardware procedures
NN10600-175 6.1S2
2 If your device is in a Multiservice Switch or seismic cabinet, you can route
the cable through the floor or ceiling with the other cables. To increase
accessibility, unfasten the 10-mm (3/8-in.) hex screws and remove the
smaller grill cutout in either the top or the bottom of the cabinet.
or
If your device is in a non-Multiservice Switch cabinet or rack, ensure that
it has the appropriate conduit entries or knockouts to pass the cable
through.
3 Route each dc power cable into the cabinet or rack through a knockout.
Label each cable near the terminal block with the same information as its
other end at the upstream power source.
4 Secure the cables to the rack or cabinet using cable ties.
5 Determine the length of the cables you require at the connections and cut
them to the appropriate length.
6 Attach cable lugs to the ends of the wires. Match the lug size to the cable
size. The terminal fits up to No. 10 AWG (5.26 mm
7 Connect the cable lugs to the terminal block at the rear of the shelf
assembly. See the figures:
• "Terminal block for the dc power cables of an Multiservice
Switch 7460" (page 341)
• "Terminal block dc cable connections for an Multiservice
Switch 7460" (page 342)
8 Connect the cables from the disconnect device to the power source.
9 Fasten the #10-32 hex nuts onto each stud of the terminal block. Tighten
to snug plus a 1/4 turn.
10 Screw the insulation shield back onto the terminal block.
2
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