Cisco Systems XR 12000 Series Manual De Usuario

Using moderate force, ensure that the GBIC is fully inserted into the 20-pin receptacle at the rear of the 
GBIC slot. The tabs on either side of the GBIC will snap into place when you have completely and 
properly inserted the GBIC.

Reattach the SC-type fiber-optic cable to the GBIC.

Before you remove or install an SFP module, read the installation information in this section and the 

Protect the SFP modules by inserting clean dust covers into them after the cables are removed. Be sure 
to clean the optic surfaces of the fiber cables before you plug them back into the optical ports of another 
SFP module. Avoid getting dust and other contaminants into the optical ports of your SFP modules, 
because the optics will not work correctly when obstructed with dust.

It is strongly recommended that you do not install or remove the SFP module with fiber-optic cables 
attached to it because of the potential of damaging the cable, the cable connector, or the optical interfaces 
in the SFP module. Disconnect all cables before removing or installing an SFP module.

Removing and inserting an SFP module can shorten its useful life, so you should not remove and insert 
SFP modules any more often than is absolutely necessary.

SFP modules use one of four different latching devices to install and remove the module from a port. 
The four types of SFP module latching devices are described in the following sections: 

The bale clasp SFP module has a clasp that you use to remove or install the SFP module. (See 

Figure 17

.)

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