B-3
Cisco 7600 Series Router Installation Guide
OL-4503-26
Appendix B Connector and Cable Specifications
Connector Specifications
into the socket. To disconnect the plug from the socket, press down on the raised portion on top of the
plug (releasing the latch). You should hear an audible click indicating that the latch has released.
Carefully pull the plug out of the socket.
When you disconnect the fiber-optic cable from the module, grip the body of the connector. Do not grip
the connector jacket-sleeve. Gripping the sleeve can, over time, compromise the integrity of the
fiber-optic cable termination in the MT-RJ connector.
Always make sure that you insert the connector completely into the socket. This action is especially
important when you are making a connection between a module and a long distance (1.24 miles) (2
km)
or a suspected highly attenuated network. If the link LED does not light, try removing the network cable
plug and reinserting it firmly into the module socket. It is possible that enough dirt or skin oils have
accumulated on the plug faceplate (around the optical-fiber openings) to generate significant attenuation,
reducing the optical power levels below threshold levels so that a link cannot be made.
To clean the MT-RJ plug faceplate, perform these steps:
Step 1 Use a lint-free tissue soaked in 99 percent pure isopropyl alcohol to gently wipe the faceplate.
Step 2 Carefully wipe the faceplate with a dry lint-free tissue.
Step 3 Remove any residual dust from the faceplate with compressed air before installing the cable.
Note Make sure that dust caps are installed on all unused module connectors and unused network fiber-optic
cable connectors.
LC
Warning
Because invisible laser radiation may be emitted from the aperture of the port when no cable is
connected, avoid exposure to laser radiation and do not stare into open apertures.
The LC fiber-optic connector, shown in Figure B-4, is used to connect the channelized OC-12 and OC-48
OSMs to optical networks using SMF.
Figure B-4 LC Fiber-Optic Connector
SC-Type
Warning
Because invisible laser radiation may be emitted from the aperture of the port when no cable is
connected, avoid exposure to laser radiation and do not stare into open apertures.
Statement 70
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