Service manual

Removing and Replacing FRUs

5-3

Removal and Replacement Procedures (RRPs)

Removing and Replacing FRUs

This section describes procedures to remove and replace director

FRUs, along with a list of tools required to perform each procedure.

In addition, the section provides:

• ESD information

• A list of concurrent FRUs. Concurrent FRUs can be removed and

replaced while the director is powered on and operational.

• A list of nonconcurrent FRUs. Nonconcurrent FRUs can only be

removed and replaced after the director is powered off.

See Chapter 6, Illustrated Parts Breakdown for FRU locations and part

numbers.

ESD Information

Follow all ESD procedures, DANGER statements, and CAUTION

statements.WhenremovingandreplacingFRUs,alwaysconnecta

grounding cable to the director chassis and wear an ESD wrist strap.

ATTENTION! To avoidcausing machine errorsor damagewhileworkingon

the director, follow ESD procedures by connecting a grounding cable to the

director chassis and wearingan ESD wrist strap.

The ESD grounding point for the front of the chassis is located at the

bottom center, adjacent to the left power supply (Figure 5-1). Touch

thechassis oncebefore performinganymaintenanceaction, andonce

each minute while removing or replacing FRUs.

If the director is not connected to facility power (and therefore not

grounded), connect the ESD wrist strap to an approved bench

grounding point instead of the chassis.