Installing Dc Power Cables Onto A Multiservice Switch 7480 - Nortel 7400 Hardware Installation

Installing dc power cables onto a Multiservice Switch 7480

Prerequisites
Procedure steps
Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2
Install dc power cables onto a Nortel Networks Multiservice Switch 7480 to
provide input power to a power supply.
WARNING
Risk of injury by electric shock
Before installing any cables, ensure that the circuit
breaker at the power distribution panel is toggled off and
that the outlet is void of primary power.
WARNING
Damage to equipment; safety hazard
Protect the power feeds to the dc power supply as
described in NN10600-170 Nortel Networks Multiservice
Switch 7400 Hardware Description. Failure to protect the
power feeds can damage the equipment and pose a safety
hazard.
• Before you install dc power cables, ensure that you have met the
appropriate power requirements. For information, see NN10600-170
Nortel Networks Multiservice Switch 7400 Hardware Description.
1 Connect a dc power cable to the output terminal of the disconnect device.
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 head screws and remove
the smaller grill cutout in either the top or the bottom of the cabinet.
or
If your device is in a cabinet or rack that is not a Multiservice Switch
cabinet or rack, ensure that it has the appropriate conduit entries or
knockouts to pass the cable through.
3 Route the dc power cable into the cabinet or rack through a knockout.
4 Run the cables beside the cable guide. Do not run the power cables inside
the cable guide.
Chapter 39 Hardware procedures 343