Allied Telesis AT-B17 - Manual (Page 11)

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Overview
The AT-B15/SX, AT-B15/LX, and AT-B17/SM are optional expansion modules
for the AT-8324SX Fast Ethernet Switch. These expansion modules can be
used to extend your network to remote sites, build a Fast Ethernet or Gigabit
Ethernet backbone, or connect additional nodes to the network, such as high-
speed servers.
Table 1 lists the basic specifications of the modules.
Caution
The expansion modules are designed for the AT-8324SX Fast Ethernet
Switch only. Do not install these modules in any other Allied Telesyn
device.
Table 1 Expansion Modules
Model Number and Type of Ports Maximum Distance
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1. The maximum distance can be less depending on the type of fiber optic cabling used with the port
and the duplex mode of the end node.
AT-B15/SX One 1000BASE-SX port 550 m (1805 ft)
AT-B15/LX One 1000BASE-LX port 5 km (3 mi)
AT-B17 Two 100BASE-FX ports 2 km (1.24 mi)