-14-
4. LED Indicators
4.1 LED Panel
The switch provides comprehensive LED indicators for diagnosing and
monitoring the operation of the switch as illustrated below:
4.2 Interpretation
LED Functions
POWER LED :
indicates the power status of the switch.
LNK/SPD/ACT LED :
indicates the link status, connection speed
status, and traffic status of the switched port
DUP/COL LED :
indicates the duplex status and collision status
of the switched port
LED States and Indications
LED
State & Color
Indication
POWER
Off
--------
No power is supplied to the switch.
POWER
On
Green
Power is being supplied to the switch.
LNK/SPD/ACT On
Green
Speed 100M, link up
LNK/SPD/ACT On
Amber
Speed 10M, link up
LNK/SPD/ACT Blink Green
Speed 100M, link up, Tx/Rx activities
LNK/SPD/ACT Blink Amber
Speed 10M, link up, Tx/Rx activities
LNK/SPD/ACT Off
--------
Link down
DUP/COL
On
Green
Full duplex mode
DUP/COL
Off
--------
Half duplex mode, no collision
DUP/COL
Blink Green
Half duplex mode, collisions
