Installing A Power Supply In A Multiservice Switch 7460 - Nortel 7400 Hardware Installation

296 Chapter 39 Hardware procedures

Installing a power supply in a Multiservice Switch 7460

Prerequisites
Procedure steps
NN10600-175 6.1S2
Install a Nortel Networks Multiservice Switch 7460 power supply to provide
minimum or redundant power to the shelf.
WARNING
Risk of personal injury
Power supplies weigh 5.7 kg (12.57 lb.) each. Handle
carefully and avoid dropping.
WARNUNG
Verletzungsgefahr
Die Stromversorgungsgeräte haben ein Gewicht von
jeweils 5,7 kg. Seien Sie vorsichtig beim Umgang mit
dem Gerät, und vermeiden Sie, es fallenzulassen.
• You need one or two power supplies with the PEC NTPS19. If you
choose to operate the device with one power supply, you can use either
bay provided the remaining bay has an NTPS22 installed in it.
• Once removed, power supply fillers (NTPS22) can be stored for re-use
or re-deployed.
• The power supplies at the front of the shelf assembly and the power
supply power cable input terminals at the rear of the shelf assembly are
labeled PS1 and PS2 to ensure you can cable the appropriate bay or bays.
• Follow "Avoiding damage from static electricity" (page 208) to protect
the unit from damage by ESD or from transferring ESD to other
hardware.
1 If present on the front of the shelf assembly, remove the power supply filler
(blank) from the power supply bay by unfastening the 2 captive screws
and pulling on the handle. Put the filler aside for re-use.
If both bays are protected by power supply fillers and you are installing
only one power supply to run the device, remove the right-hand filler. This