3Com Router Module Guide
Chapter 4
4-9
4.1.10 Panel and Interface LEDs
Figure 4-3
100FX MM panel
Figure 4-4
100FX SM panel
The following table describes the LEDs on the card panel.
Table 4-4
LEDs on the Router 1-Port 100FX MM FIC/100FX SM FIC panel
LED
Description
LINK
OFF means no Rx link is present, and ON means an Rx link is present.
ACTIVE
OFF means no data is being transmitted or received on the interface and blinking
means data is being transmitted and/or received.
4.1.11 Interface Optical Fiber
The 100FX MM should be connected to multi-mode optical fiber and the 100FX SM to
single-mode optical fiber. Because the optical interfaces on both cards are SC-type
optical receptacles, you must use the optical fibers with SC-type connectors to
connect them.
Figure 4-5
SC-type fiber-optic connector
