Installing And Removing Sfp Modules - Cisco ASR 920 Series Installing Manual

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Installing the Cisco ASR 920 Series Router

Installing and Removing SFP Modules

These sections describe how to install and remove SFP modules. The modules are inserted into the SFP module

slots as depicted in Installing an SFP Module into an SFP Module Slot figure. These field-replaceable modules

provide interfaces.

Each port must match the wavelength specifications on the other end of the cable. For reliable communications,

the cable must not exceed the stipulated cable length.

Use only Cisco SFP modules on the Cisco router. Each SFP module has an internal serial EEPROM that is

encoded with security information. This encoding provides a way for Cisco to identify and validate that the

SFP module meets the requirements for the router.

For detailed instructions on installing, removing, and cabling the SFP module, see the SFP module

documentation.

Installing SFP Modules

The following figure shows an SFP module that has a bale-clasp latch.

Caution

We strongly recommend that you do not install or remove fiber-optic SFP modules with cables attached

because of the potential damage to the cables, the cable connector, or the optical interfaces in the SFP module.

Disconnect all cables before removing or installing an SFP module.Removing and installing an SFP module

can shorten its useful life. Do not remove and insert SFP modules more often than is absolutely necessary.

Figure 11: SFP Module with a Bale-Clasp Latch

To insert an SFP module into the module slot, follow these steps:

Procedure

Step 1

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.

Some SFP modules identify the top side of the module with send (TX) and receive (RX) markings or arrows

that show the direction of the connection.

Step 2

If the SFP module that you are using has the markings, use them to identify the top side of the module.

Step 3

Align the SFP module in front of the slot opening.

Installing and Removing SFP Modules

Installing the Cisco ASR 920 Series Router

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