Allied Telesis AT-FS708/POE - Manual (Page 18)

Chapter 1: Overview
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The SFP transceiver is a fast and easy way for you to add a 1000 Mbps
fiber optic uplink port to your Fast Ethernet switch. You can use the SFP to
extend the distance of your network, build a high-speed backbone network
between switches, or connect additional end nodes to the network, such
as high-speed servers.
Figure 2 shows an example of an SFP transceiver.
Figure 2. SFP Transceiver
Note
The SFP transceiver only supports Gigabit operation and works
independently without taking any port priority.
Note
For a list of the SFP transceiver modules supported by the
AT-FS708/POE Fast Ethernet switch, contact your Allied Telesis
sales representative or refer to our web site at
www.alliedtelesyn.com.