3Com EtherLink 3C985B-SX Installation and user manual - 10/100/1000Base-T Nic
Verifying NIC Functionality
29
10/100/1000Base-T NIC
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 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 indicate the following NIC states:
If all four LEDs remain lit simultaneously, the NIC driver software is either
missing or improperly installed.
10/100/1000Base-T Port LED Activity
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.
D
ATA
1000
100
10
10/100/1000
B
ASE-T