Cisco Systems CGS 2520 manual Removing the Screws

Chapter 3 Power Supply Installation

Removing the Power Supply Module

Step 1 We recommend that power be OFF at the AC or DC circuits. Locate the circuit breakers, turn them OFF and tape them in the OFF position.

Note If the power is not off at the AC or DC circuit breaker, do not touch the power-input terminal.

Step 2 Verify that the PSU LED and PSU OK LED is blinking red or is off.

Step 3 Use a Phillips screwdriver to loosen the captive screws that secure the power supply module to the switch (see Figure 3-15).

Warning Hot surface. Statement 1079

Figure 3-15 Removing the Screws

Cisco C
Sw itchonnected Grid
2500	Series

207432

Step 4 Remove the power supply module from the power slot. The power supply module might be hot (see Figure 3-16).

Step 5 Install a new power supply module or a blank cover.

Figure 3-16 Removing the Power Supply Module

Cisco C
Sw itchonnected Grid
2500	Series

207433

Caution To prevent exposure to hazardous voltages and to contain electromagnetic interference (EMI), either a power supply module or a blank cover must be in each power supply module slot at all times. You can order the blank cover (part number RPS-CG-COVER=).

	Cisco CGS 2520 Hardware Installation Guide
3-12	OL-31444-01