Cisco 7609-S Installation Guide - Page 98

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Connector Specifications Appendix B Connector and Cable Specifications When you are connecting MT-RJ cables to a module, make sure that you firmly press the connector plug into the socket. The upper edge of the plug must snap into the upper front edge of the socket. You may or may not hear an audible click. Gently pull on the plug to confirm whether or not the plug is locked 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 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 Step 2 Step 3 Use a lint-free tissue soaked in 99 percent pure isopropyl alcohol to gently wipe the faceplate. Carefully wipe the faceplate with a dry lint-free tissue. 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. Cisco 7609 Internet Router Installation Guide B-4 OL-5079-04

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Appendix B
Connector and Cable Specifications
Connector Specifications
B-4
Cisco 7609 Internet Router Installation Guide
OL-5079-04
When you are connecting MT-RJ cables to a module, make sure that you firmly
press the connector plug into the socket. The upper edge of the plug must snap
into the upper front edge of the socket. You may or may not hear an audible click.
Gently pull on the plug to confirm whether or not the plug is locked 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
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.