Allied Telesis AT-MCF2012LC/1 - Manual (Page 37)

AT-MCF2012LC and AT-MCF2012LC/1 Media Converter Modules Installation Guide
37
SML LEDs, explained in “LT, ML, and SML Channel
Operating Mode LEDs” on page 30. A change of the
operating mode is immediately activated on a channel.
Here is an example on how to use the Mode Selection
button. Assume you wanted to determine the duplex mode
of the two port in channel 6 (i.e., twisted pair port 6 and fiber
optic port 6) and change the operating mode of the channel
to the Link Test mode. The first step is select channel 6 by
turning the Mode Selection button up or down to toggle the
CH LEDs until the CH6 LED under fiber optic port 6 is on. At
that point the CDC and FDC LEDs immediately reflect the
duplex mode and collisions for the two ports of channel 6.
To change the operating mode of the channel to the Link
Test mode, you press the button to toggle the operating
mode LEDs until the LT LED is on.
Note
Using the Mode Selection button to view the CDC and
FDC LEDs and to change the operating mode of a
channel does not interfere with the forwarding of traffic
by the channels on the module.