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Making Network Connections
AT-B15/SX and AT-B15/LX (1000Base, SX and LX) Expansion
Modules
48
If an AT-B15/SX or AT-B15/LX Expansion Module is present, its Gigabit
port may be used for a backbone connection between switches or for
connecting a high-speed server.
Each 1000Base-SX device requires 50/125 or 62.5/125 micron multimode
fiber optic cabling with an SC connector at both ends. Each 1000Base-LX
device requires 10/125 micron single-mode fiber optic cabling with an
SC connector at both ends.
For SC fiber ports, connect one end of the cable to the SC connector on
the slide-in module and the other end to the SC connector on the other
device. Since SC connectors are keyed, the cable can be attached in only
one manner. If you use an SC/ST converter with ST fiber ports, be sure to
connect the Tx (Rx) connector on the slide-in module to the Rx (Tx)
connector on the other device.
The Gigabit ports operate at 1 Gbps, half- or full-duplex, with auto-
negotiation for duplex mode and flow control. The maximum length for
fiber optic cable operating at Gigabit speed will depend on the fiber
type as listed under 1000 Mbps Gigabit Ethernet on page 34.
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