Related Information; Connecting The Sfp Ports; About; Materials And Tools You Supply - Cisco 1240 Hardware Installation Manual

Additional Router Connections
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Related Information

For detailed information about these ports, including supported USB standards and power output, see
the

Connecting the SFP Ports

See

About

Small Form-Factor Pluggable (SFP) modules are transceiver devices that plug into the router SFP
connectors. The transceiver connects the electrical circuitry of the module with the optical network.
The SFP module used on each port must match the wavelength specifications on the other end of the
cable, and the cable must not exceed the stipulated cable length for reliable communications.
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.
Class 1 laser product. Statement 1008
Warning
Do not remove the dust plugs from the fiber-optic SFP module port or the rubber caps from the
Caution
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.
Cisco recommends that you not install or remove the SFP module while the fiber-optic cable is attached
Caution
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:
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Cisco 1240 Connected Grid Router Hardware Installation Guide
6-20
The USB ports are labeled 1 and 2 (with a USB icon).
Depending on the USB devices you connect to these ports, you might require a USB extension cable
to connect devices to these ports.
To prevent connected USB devices from being stolen or accidently removed, secure any connected
USB device with a locking mechanism designed for this purpose.
When connecting to external USB devices, you must use cable glands and thread USB cables
through the chassis cable ports on the router. For more information, see the
and Chassis Cable Ports" section on page
"Router Hardware Description"
Figure 3-17 on page 3-24
Wrist strap or other personal grounding device to prevent ESD occurrences.
Antistatic mat or antistatic foam to set the transceiver on.
6-12.
chapter.
for the SFP port locations.
Chapter 6 Installing the Router
"External Connections
OL-26223-04