Replacement Procedures; Replacing A Power Supply - HP 7500 Series Installation Manual

Replacement procedures

The 7500 Switch Series uses a modular, hot-swappable architecture, and supports field replaceable units
(FRUs). You can replace any of FRUs when the switch is running.
CAUTION:
When replacing hot swappable modules when the switch is running, notice safety with electricity.

Replacing a power supply

WARNING!
• Strictly follow the procedures shown in
device or bodily injury.
An AC power supply and a DC power supply cannot be installed on the same 7500 switch, and power
•
supplies with different models cannot be installed on the same 7500 switch. When you use two power
supplies to supply power, and the power supplies to be replaced are of different models, power off the
switch before replacement to avoid damage to the switch.
When you use two power supplies to supply power to the switch, make sure each power supply has a
•
separate circuit breaker. Before replacing a power supply, turn off the circuit breaker on the power
supply.
Replace a power supply in the following cases:
The power supply is faulty.
•
The power of the current power supply cannot satisfy the power requirements of the switch. For
•
example, when the power supply does not support PoE, or the PoE output power of the power
supply cannot satisfy the PoE power supply requirements. To ensure normal operation of the
connected PDs, use a power supply with a higher power. For power supply compatibility
information, see
The system power consumption is the total dynamic power consumption of all MPUs plus the total
dynamic power consumption of all the LPUs plus the maximum power consumption of fans. For more
information, see
Figure 46 Power supply removal flow
Figure 47 Power supply installation flow
To replace a power supply:
1. Prepare an antistatic mat to place the removed power supply.
"Appendix B FRUs and compatibility
"Appendix A Chassis views and technical
Figure 46 and Figure 47
matrixes."
specifications."
79
to replace a power supply to avoid