Cabletron Systems SFCS-1000 User Manual

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Table 3.8 - 
CEC Receive (RX) LED Description
Table 3.9 - 
CEC Link Integrity (LI) LED Description
Table 3.10 - 
CEC Collision (COL) LED Description
Table 3.11 - 
CEC Polarity (POL) LED Description
LED Color
Meaning
green
The Ethernet port is receiving traffic normally.
off
The Ethernet port is NOT receiving traffic.
LED Color
Meaning
green
The status of the twisted pair cable connected to 
the CEC Ethernet port is OK.
off
The Ethernet port is NOT receiving link integrity 
pulses. Check the integrity of the connection.
LED Color
Meaning
red
An Ethernet collision has been detected on the 
CEC Ethernet port.
off
No Ethernet collisions have been detected.
LED Color
Meaning
amber
A reverse polarity condition has been detected on 
the twisted pair cable connected to the CEC Ether-
net port. The polarity is automatically corrected, 
but the amber light will remain illuminated until a 
corrected twisted pair cable is inserted into the 
Ethernet port.
off
The polarity of the twisted pair cable connected to 
the CEC Ethernet port is OK.