Chapter 2 Installing the Cisco MDS 9500 Series

Removing and Installing a Power Supply or PEM

Se n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a ck - d o c @ c i s c o . c o m .

Removing a DC Power Supply from the Cisco MDS 9509 Director

The DC power supply for the Cisco MDS 9509 Director is 2500 W.

Note The DC return connection to this system is to remain isolated from the system frame and chassis (DC-I).

Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit.

Statement 1003

To remove a DC power supply from the Cisco MDS 9509 Director, follow these steps:

Step 1 Ensure that all power is off by locating the circuit breaker on the panel board that services the DC circuit. Switch the circuit breaker to the off position, and tape the switch handle of the circuit breaker in the off position.

Step 2 Remove the two screws securing the terminal block cover and slide the cover off the terminal block. (See Figure 2-34.)

Step 3 Disconnect the DC cables from the terminal block in the following order:

Positive (+)

Negative (-)

Ground

Caution The DC return connection (Negative (-)) to this system is to remain isolated from the system frame and chassis (DC-I). Loosen the captive screw on the power supply.

Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046

 

 

Cisco MDS 9500 Series Hardware Installation Guide

 

 

 

 

 

 

OL-17467-02

 

 

2-61

 

 

 

 

 

Page 141
Image 141
Cisco Systems MDS 9500 Series manual Removing a DC Power Supply from the Cisco MDS 9509 Director