Cisco Systems CISCO7201 Manual De Usuario

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).

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

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

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.

Optical SFP module plug

Copper SFP module RJ-45 connector

Optical SFP module

Copper SFP module

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Cisco 7201