3Com Router Module Guide
Chapter 4
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4.14.3 Panel and Interface LEDs
The following figure illustrates the ROUTER 1-PORT OC3 POS FIC panel:
Figure 4-47
ROUTER 1-PORT OC3 POS FIC panel
The following table describes the LEDs on the ROUTER 1-PORT OC3 POS FIC panel.
Table 4-32
LEDs on the ROUTER 1-PORT OC3 POS FIC panel
LED
Description
LINK
OFF means no link is present; ON means a link is present.
ACT
OFF means no data is being transmitted or received; blinking means data is being
received or/and transmitted.
4.14.4 Interface Optical Fiber
Like the FICCPOS, the ROUTER 1-PORT OC3 POS FIC uses optical fibers with
LC-type connectors (see
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).
4.14.5 Connecting the Interface Optical Fiber
Step 1: Insert the SFP card into its corresponding slot.
Step 2: Locate the Rx and Tx fiber-optic interfaces on the interface card. Use two
fibers to connect the ROUTER 1-PORT OC3 POS FIC to another device: Rx to Tx and
Tx to Rx.
Step 3: Power on the device and check the LINK LED on the ROUTER 1-PORT OC3
POS FIC panel: ON means the Rx link is present and OFF means the opposite. In the
latter case, check the line status.
Warning:
Because invisible laser radiation may be emitted from the aperture of an optical port when no fiber is
connected or the dust cap is removed, do not stare into the open aperture.
Replace the dust cap when no fiber is connected to the optical port.
