Nortel DMS-100 Series Maintenance Manual page 228

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7-22 Card replacement procedures

297-8231-550 Standard 09.01 August 1998

Protect back plane pins

Do not allow screws to drop onto or touch the back

plane pins. When removing and replacing the screws

for the card, the back plane pins above and below

must be protected to prevent shorting out. Use of a

magnetic screw or nut driver is recommended.

Protect exposed back plane pins in one of the following ways:

Wrap electrical tape around a group of pins. Do not bend the pins.

Cover the pins with NOMEX paper.

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