Cisco Catalyst IR8140 Heavy Duty Series Hardware Installation Manual page 84

Connecting a Fiber-optic Cable to the Router
Step 3 Insert the SFP module into the SFP port, and ensure that it latches properly. See
Fiber-Optic Cable to the Router, on page 69
Step 4
Loosen the cable gland's nut (round end of the cable gland) by turning counterclockwise, but do not remove.
Step 5 Feed terminated fiber cable through gland and adapter as shown in the following figures.
The optic fiber connectors are too big to pass through the cable gland. That is the reason why you need to
Note
thread the cable through the gland from the unterminated end (even if the cable is quite long).
Figure 39: Duplex LC Fiber Optic Cable
1
Step 6
Insert the LC optic fiber connector-end of the cable, into the SFP module adapter. Do not attach the cable gland to the
adapter yet. See the following figure.
Step 7
Insert the LC optic fiber connector into the SFP module and ensure that it latches into place.
Step 8 Apply sealing tape or sealant to threads of the extender, and then thread the extender into the SFP port of the router
chassis. Use an adjustable wrench to tighten the threaded end of the cable gland to 6-7 lb.ft (8.1 to 9.5 Nm).
Step 9 Thread the adapter base into the extender with 3-4 ft-lbs of torque.
Step 10
Insert "keyed" grommet into the adapter base, and insert the gasket into the grommet.
Cisco Catalyst IR8140 Heavy Duty Series Router Hardware Installation Guide
68
Duplex LC optic fiber connector
for assembly detail.
2
Connecting the Router
Figure 40: Exploded View of Connecting
Optic fiber cable