
5.MATTERS COMMON TO BOTH LCD-MOUNTED TYPE AND STAND-ALONE TYPE (HARDWARE) B-63945EN/02
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LED indications related to communication status
No.
STATUS LED
indication
Board state
1 COM Lights when data is sent.
2 LIL
Lights when the Fast Ethernet/Fast data server is
successfully connected to the hub.
3 COL Lights if a data collision occurs.
4 BTX
Lights when a connection is made with
100BASE-TX.
NOTE
LIL :
Communication is not performed while this LED is
not lit. A probable reason for this is that the Fast
Ethernet/Fast data server is not properly
connected to the hub, or that the hub is off. This
LED should be lit at all times while the Fast
Ethernet/Fast data server is properly connected to
the hub.
COL :
This LED lights frequently if there is excessive
traffic on the communication line or if there is
excessive peripheral electrical noise.