3com 7754 Manual De Usuario

This chapter covers the following topics:

■

■

■

■

To replace a power module, you need:

■

An antistatic wrist strap 

■

A screwdriver 

To remove the power module, do the following:

1 Power off the Switch 7750. 

2 Remove the power cord from both the power module and the AC power socket.

3 Loosen the retaining screw that secures the power supply on the lower right front 

of the power supply. 

4 Remove the power supplies approximately 2 inches (5 cm) from the chassis to 

disconnect the power supply AC connectors from the AC power module.

5 Loosen and remove the 4 screws at the corners of the power module. 

6 Remove the power module from the chassis.

To install the new power module, do the following:

1 Slide the replacement power module into the power module slot in the bottom 

rear of the chassis.

2 Insert and tighten the 4 screws at the corners of the power module.

3 Reconnect the power supplies to the power module.

4 Tighten the retaining screw on the lower right front of the power supply.

5 Connect 2 power cords to the power module.