Cisco Systems CISCO7201 manual Installing the SFP Module Optical Fiber Cables, Cisco 7201

Chapter 2 Installing the Cisco 7201 Router

Connecting I/O Cables

When shorter distances of single-mode fiber are used, it may be necessary to insert an inline optical attenuator in the link to avoid overloading the receiver. A 5-decibel (dB) or 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the SFP-GE-Z= at each end of the link whenever the fiber-optic cable span is less than 25 km.

•1000 BASET SFP module—The SFP-GE-T (1000BASET copper SFP module) provides full-duplex Gigabit Ethernet connectivity to high-end workstations and between wiring closets over an existing copper network infrastructure. The SFP-GE-T maximum cabling distance is 328 feet (100 m).

Note Optical fiber cables are commercially available; they are not available from Cisco.

Installing the SFP Module Optical Fiber Cables

SFP modules ordered with the Cisco 7201 router come installed in the system. Optical fiber cables are commercially available; they are not available from Cisco

Figure 2-15 Optical SFP Module and Copper SFP Modules

Cisco

7201

RJ45

EN

LINK/ACTV

CONSOLE

SFP

RJ45

EN

LINK/ACTV

LINK/ACTV

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SFP

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SFP

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GE 0/3

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1	Optical SFP module plug	3	Copper SFP module RJ-45 connector
2	Optical SFP module	4	Copper SFP module

The optical SFP modules can occupy any of the four optical Gigabit Ethernet ports, 0/0 through 0/3. However, the copper SFP modules can occupy only optical Gigabit Ethernet ports 0/2 and 0/3.

	Cisco 7201 Installation and Configuration Guide
OL-11364-04		2-19