Power Supply Replacement - Nortel 7400 Hardware Installation

Chapter 36

Power supply replacement

Prerequisites to power supply replacement
Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2
Replace a failed power supply to restore power to a device, or to provide
power supply redundancy.
• "Prerequisites to power supply replacement" (page 191)
• "Power supply replacement task flow" (page 192)
WARNING
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.
191