Nortel Business Communications Manager 450 Installation Manual page 58

58 Power connection
Prerequisites to power connection
• Install the BCM450 main unit and optional expansion cabinet. For more
information, see
expansion cabinet installation (page
Power connection procedures
This task flow shows you the sequence of procedures you perform to connect
power to your BCM450 system. To link to any procedure, go to
installation navigation (page
Copyright © 2006-2009 Nortel Networks
CAUTION
Risk of equipment damage
Service personnel must be alert to the possibility of high leakage
currents becoming available on metal system surfaces during power
line fault events near network lines. These leakage currents normally
safely flow to protective earth ground through the power cord.
System shutdown: You must disconnect the media bay module
cables from the system before you disconnect the power cord from a
grounded outlet.
System startup: You must reconnect the power cords to a grounded
outlet before you reconnect the cables to the media bay modules.
BCM450 main unit installation (page 25)
59).
Nortel Business Communications Manager 450 1.0
Installation — System
NN40160-301 01.04 Standard
July 2009
and
37).
BCM450
Power supply