Cisco CATALYST 6509E 9 SLOT 15U CHASSIS NO POWER SUPPLY NO FAN TRAY Specification Guide

This section covers the power supply removal and installation procedures for the 2700 W DC-input 
power supply and is divided into the following topics:

Use a flat-blade or number 2 Phillips-head screwdriver to perform these procedures. Additionally, wire 
cutters may be necessary to cut cable tie-wraps.

Before performing any of the following procedures, ensure that power is removed from the DC 
circuits. To ensure that all power is removed, locate the circuit breakers or fuses on the DC power 
lines that service the DC circuits. Turn OFF the DC power line circuit breakers and remove the DC 
power line fuses. Statement 322

Voltage is present on the backplane when the system is operating. To reduce risk of an electric shock, 
keep hands and fingers out of the power supply bays and backplane areas. Statement 166

Follow these steps to remove a DC-input power supply:

Verify that power is off to the DC circuit on the power supply that you are removing. As an added 
precaution, place the appropriate safety flag and lockout devices at the source power circuit breaker, or 
place a piece of adhesive tape over the circuit breaker handle to prevent accidental power restoration 
while you are working on the circuit.

Remove the four screws securing the terminal block cover, and slide the cover off the terminal block. 
(See 

.)