Nortel DMS-100 Series Maintenance Manual page 230

7-24 Card replacement procedures
NT6X40
in a SMS
(continued)
19
20
21
22
297-8231-550 Standard 09.01 August 1998
Place the circuit card just removed in an electrostatic discharge protective
container.
Note: If the circuit card you are replacing has switches, ensure the switches on
the replacement circuit card have the same settings.
Using the levers located at the top and bottom of the 6X40 circuit card firmly
press the connector pin socket on the card onto the connector pins on the
backplane.
Secure the circuit card to the support assembly.
a. Locate the screw hole which is positioned half-way down the outer edge of
the card.
b. Position the spacer at the screw hole between the circuit card and the
support assembly.
c. Insert the screw, moving it in the direction of the support assembly, through
the spacer.
d. Fasten the washer to hold the screw in place.
Reconnect the fiber optic cables.
a. Remove the dust caps from the ends of the fiber links.
b. Gently insert the ferrule into the sleeve so the guide pin enters the guide
slot.
c. Rotate the plug retainer so the retaining pin enters the retaining groove.
d. Push the connectors together and twist the plug retainer to lock the
retaining pin into the retaining groove.