SMC Networks 6900FSC FICHE, Installation Manual

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Optional 1000BASE-SX Module (SMC6900G)
Figure 1-7. Single-Port 1000BASE-SX Gigabit Module
Using fiber optic cable, the 1000BASE-SX port can be connected to
a remote site up to 550 m (1805 ft.) away. The 1000BASE-SX
Gigabit module operates at 1 Gbps, with support for
auto-negotiation of duplex mode and flow control. This module is
fitted with an SC connector, but you can attach an ST plug to the
switch using the SC-ST Converter (Part Number: 99-012034-091).
Optional Stack Module (SMC6900S)
Figure 1-8. Stack Module
The uplink and downlink stack ports operate at 2 Gbps. These
modules can be used to connect up to four switches to the
backplane. A stack cable is included with each module.
Optional Redundant Power Unit (SMCRPU150W)
SMC provides an optional Redundant Power Unit (RPU),
SMCRPU150W, that can supply power to the switch in the event of
failure of the internal power supply.