3Com 3CRDSF9PWR-US - OfficeConnect Managed Fast Ethernet PoE Switch User Manual - page 18
18
C
HAPTER
1: G
ETTING
S
TARTED
LED Status
Indicators
The OfficeConnect Managed Fast Ethernet PoE switch provides LED
indicators on the front panel for your convenience to monitor the switch.
Table 2 describes the meanings of the LEDs.
Table 2
Description on the LEDs of the OfficeConnect Managed Fast Ethernet
PoE Switch
LED
Label
Status Description
Power
Power
Green The switch starts normally. The LED flashes when
the system is performing power-on self test (POST)
or firmware is being upgraded.
Yellow The system has failed the POST.
OFF
The switch is powered off.
10/100
BASE-TX
Ethernet port
status
Link/
Activity
Green The port works at the rate of 100 Mbps; the LED
flashes quickly when the port is sending or receiving
data.
Yellow The port works at the rate of 10 Mbps; the LED
flashes quickly when the port is sending or receiving
data.
OFF
The port is not connected.
10/100/1000
BASE-T
Ethernet port
status
Link/
Activity
Green The port works at the rate of 1000 Mbps; the LED
flashes quickly when the port is sending or receiving
data.
Yellow The port works at the rate of 10/100 Mbps; the LED
flashes quickly when the port is sending or receiving
data.
OFF
The port is not connected.
Duplex mode Duplex
Yellow The port is in full duplex mode.
OFF
The port is not connected, or is in half duplex mode.
100/1000
Base SFP port
status
Module
Active
Green An SFP module is inserted.
OFF
An SFP module is not inserted or is not recognized.
PoE status
PoE
Status
Green Delivering power. The LED flashes if a fault occurs.
OFF
Not delivering power.