Nortel DMS-100 Series Replacement Procedures page 854

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Table of Contents

1-822 XPM card replacement procedures (continued)

in an RSC-S (DS-1) Model A LCME

At the shelf

297-8021-547 Standard 14.02 May 2001

Static electricity damage

Wear a wrist strap that connects to the wrist-strap grounding

point to handle circuit cards. The wrist-strap grounding point

is on a frame supervisory panel (FSP) or a modular

supervisory panel (MSP). The wrist strap protects the cards

against static electricity damage.

Potential equipment damage

Note the fuses that you remove from the fuse panel. If you

do not insert fuses in the correct location on the fuse panel,

equipment damage occurs.

Equipment damage

Take these precautions when removing or inserting a card:

1. Do not apply direct pressure to the components.

2. Do not force the card into its slot.

Remove fuses for the line drawer containing the faulty DBIC. Perform the

following steps. Refer to the ﬁgure that follows to identify the correct fuses.

Note: Fuse markings do not always identify voltage. Make sure that you

note the fuses and the location of the fuses in the fuse panel.

Remove the -48V fuse for the line drawer that contains the faulty DBIC.

Remove the +15V fuse for the line drawer that contains the faulty DBIC.

Remove the +5V fuse for the line drawer that contains the faulty DBIC.