Cisco 1120 Hardware Installation page 58

Use only Cisco SFP transceiver modules with the router. Each SFP transceiver module supports the Cisco Quality
Identification (ID) feature which allows a Cisco switch or router to identify and validate that the transceiver module is
certified and tested by Cisco.
Warning: Class 1 laser product. Statement 1008
Caution: Do not remove the dust plugs from the fiber-optic SFP module port or the rubber caps from the fiber-optic
cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from
contamination and ambient light.
Caution: Cisco recommends that you not install or remove the SFP module while the fiber-optic cable is attached to it
because of the potential damage to the cables, to the cable connector, or to the optical interfaces in the SFP module.
Disconnect the cable before you remove or install an SFP module.
Materials and Tools You Supply
You must provide these tools and materials to install the SFP transceiver module:

Wrist strap or other personal grounding device to prevent ESD occurrences.

Antistatic mat or antistatic foam to set the transceiver on.

Fiber-optic end-face cleaning tools and inspection equipment. For complete information on inspecting and cleaning
fiber-optic connections, see the white-paper document at this URL:
http://www.cisco.com/en/US/tech/tk482/tk876/technologies_white_paper09186a0080254eba.shtml
Connecting
This section describes how to install SFP modules. SFP modules are inserted into the SFP ports shown in
page 59.
You can connect SFP modules to these ports while the router is operating normally. The SFP ports are labeled ETH 1/2
and ETH 2/2.
When installing or removing SFP modules, observe these guidelines:

Removing and installing an SFP module can shorten its useful life. Do not remove and insert any module more often
than is absolutely necessary.

To prevent ESD damage, follow your normal board and component handling procedures when connecting cables to
the switch and other devices.
To install SFP modules:
1. Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface.
2. For fiber-optic SFP modules, remove the dust plugs and store them in a clean location for reuse.
3. Position the SFP transceiver module in front of the socket opening, and insert the SFP into the socket until you feel
the connector latch into place.
4. Remove the dust plugs from the network interface cable LC connectors.
5. Inspect and clean the LC connector's fiber-optic end-faces.
6. Remove the dust plugs from the SFP transceiver module optical bores.
7. Attach the network interface cable connector to the SFP transceiver module.
Related Information

For supported SFP modules, see Router Hardware Description, page
58
13.
Figure 2 on