Optional 100base-fx module (smc6824fssc), Optional 100base-fx module (smc6824fmsc), Figure 1-5 – SMC Networks 10/100 User Manual
Page 26: Single-port 100base-fx single-mode module -6, Figure 1-6, Single-port 100base-fx multimode module -6

A
BOUT
THE
T
IGER
S
WITCH
10/100
1-6
Optional 100BASE-FX Module (SMC6824FSSC)
Figure 1-5 Single-Port 100BASE-FX Single-Mode Module
Using single-mode fiber optic cable, the 100BASE-FX port can be
connected to a remote site up to 20 km (12.4 miles) away. The
100BASE-FX module operates at 100 Mbps, with support for full-duplex
mode and flow control.
Optional 100BASE-FX Module (SMC6824FMSC)
Figure 1-6 Single-Port 100BASE-FX Multimode Module
Using multimode fiber optic cable, the 100BASE-FX port can be
connected to a remote site up to 2 km (1.2 miles) away. The 100BASE-FX
module is fixed to operate at 100 Mbps full duplex, and supports
auto-negotiation for 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).
100BASE-FX Singlemode Module
SMC6824FSSC
TX
RX
100BASE-FX Multimode Module
SMC6824FMSC
TX
RX