Power Supply Replacement - Nortel Multiservice Switch 7400 Installation & Maintenance

Power supply replacement

Replace a failed power supply to restore power to a device, or to provide
power supply redundancy.
Prerequisites to power supply replacement
Copyright © 2005, Nortel
DANGER
Risk of injury by electric shock
Never service the power supply. There are no serviceable parts. To
avoid injury from potentially dangerous voltages, send the unit to
Nortel Networks to be serviced.
WARNUNG
Verletzungsgefahr durch Elektroschock
Die Stromversorgungseinheit bedarf keiner Wartung, da darin keine
wartungsbedürftigen Teile enthalten sind. Um Verletzungen durch
potenziell gefährliche Stromspannungen zu vermeiden, sollten Sie
die Stromversorgungseinheit zur Wartung an das Werk einschicken.
CAUTION
Risk of service loss
If a device does not have redundant power, a software operator must
remove the device from service before a hardware installer removes
a power cable or power supply. For information about minimum and
redundant power configurations, see NN10600-170 Nortel
Multiservice Switch 7400 Hardware Description.
CAUTION
Risk of equipment damage
You must not install one ac power supply and one dc power supply
in the same Multiservice Switch device.
Nortel Multiservice Switch 7400
Hardware Installation, Maintenance, and Upgrade
NN10600-175 7.1S1 Standard
PCR7.1 and up October 2005
Nortel Confidential