3Com EtherLink 3C985B-SX Installation And User Manual - page 14
1 About the NIC
10
10/100/1000Base-T NICs
The 10/100/1000Base-T NIC faceplate configuration is shown below.
Connectors
The faceplate on the 10/100/1000Base-T NIC provides an RJ-45 connector for connecting the NIC to another
network device.
LEDs
The faceplate of the 10/100/1000Base-T NIC has four LEDs: one for each port speed option (10Mbps, 100Mbps,
and 1Gbps), to indicate which link is active, and one LED for data transfer status. Until the driver software is
properly installed, all four LEDs will remain lit when the server is powered on.
Once the NIC hardware and its driver software have been properly installed on your system, the LEDs will indicate
the following NIC states listed in the table below:
LED
State
Description
Data
Blinking
On
Off
Brief bursts of data detected on the port.
Streams of data detected on the port.
No data detected on the port.
1000
On
Off
Good 1000 Mbps (Gigabit) Ethernet link.
No 1000 Mbps link; possible link at different speed, possible bad
cable, bad connector, or configuration mismatch.
100
On
Off
Good 100 Mbps Fast Ethernet link.
No 100 Mbps link; possible link at different speed, possible bad
cable, bad connector, or configuration mismatch.
10
On
Off
Good 10 Mbps Ethernet link
No 10 Mbps link; possible link at different speed, possible bad cable,
bad connector, or configuration mismatch.
NOTE: If all four LEDs remain lit simultaneously, the NIC driver software is either missing or improperly
installed.
D
ATA
1000
100
10
10/100/1000
B
ASE-T