Nortel North American DMS-100 Instruction Manual page 195

1-180 Trouble locating and clearing procedures (continued)
Replacing a CU voltage limiter and filter in a 28-in. cabinet
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At the back of the cabinet
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At the front of the cabinet
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297-8021-544 Standard 14.02 May 2001
WARNING
Static electricity damage
To handle circuit cards, wear a wrist strap that connects to a
wrist-strap grounding point. A grounding point will be on the
modular supervisory panel (MSP), or a frame supervisory
panel (FSP). The wrist strap protects against static electricity
damage.
Unplug the two connectors on the NTNX13CA card.
To remove the NTNX13CA card from the fan tray, pull on the card near each
standoff that supports the fan tray. The standoffs have a snapoff tip so that
the card pulls off without the requirement of any tools.
Align the holes of the new card with the standoffs.
Press down on the card near the standoffs until the card snaps into place.
Reconnect the two connectors to the replacement NTNX13CA.
Slide the fan tray back into the cabinet.
Tighten the two screws that hold the fan tray in place.
Reconnect the 15-pin electrical connector of the fan tray.
Close the cabinet doors.
DANGER
Risk of personal injury
Contact with unshielded cabinet wiring can result in electric
shock. Do not touch the cabinet wiring.
Open the filter access panel at the bottom of the cabinet. To open the panel,
slide the catches toward each other (A) and swing the panel downward (B).
(continued)