Cisco GS7000 Installation And Operation Manual page 92

Chapter 5 Maintenance
its slot until connected to the optical interface board.
6 Tighten the screws securing the module. Torque screws to 25 to 30 in-lbs (2.8 to
3.4 Nm).
7 Carefully reconnect any optical fibers that were removed from the original
module. Clean optical connectors before reconnecting. See Care and Cleaning of
Optical Connectors (on page 79) for cleaning procedure.
8 Close the housing. See Opening and Closing the Housing (on page 68).
Important: If you are using a Local Control Module in the node be sure to press
the Auto Set-Up button on the cover of the LCM before you close the node
housing. This allows the LCM to check for, and detect, installed modules. If the
modules are not detected during this discovery process, they cannot be
monitored and controlled by the LCM. The node must be powered and the
modules operating properly in order to be detected.
9 Perform the setup procedure in Chapter 4 to verify node performance.
Accessing the Receiver/Transmitter Module Fiber Spool and Connector
Optical receivers and transmitter modules have an integrated fiber spool inside the
module housing. This allows the fiber pigtail to be spooled up and contained within
the module housing.
You may need to access this spool to clean or replace a fiber pigtail or connector.
Follow this procedure to access the module fiber spool and connector.
1 Pull up on the two module cover knurled tabs. Use a slight rocking motion.
Note: If the module is out of the housing, it is easier to hold the module in both
hands and push up on the two module cover knurled tabs with your thumbs.
You can also insert a flat blade screwdriver into the cover release tab slot on the
right side of the module housing to assist with opening the cover.
The module cover opens as shown.
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WARNING:
Laser light hazard. Never look into the end of an optical fiber or connector.
Failure to observe this warning can result in eye damage or blindness.