3Com EtherLink 3C985B-SX Installation And User Manual - page 13
Physical Description
9
Physical Description
1000Base-SX Fiber NICs
The 1000Base-SX fiber NIC faceplate configuration is shown below.
Connectors
The faceplate of the NIC has one 1000Base-SX fiber-optic connector for connecting the NIC to a Gigabit
Ethernet segment.
LEDs
There are two LEDs on the faceplate: one to indicate link status and one for data transfer status. 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
Data detected on the port.
Data detected on the port.
No data detected on the port.
Link
Blinking slowly
On
Off
Port has been disabled by software.
Good link.
No link; possible bad cable, bad connector, or configuration mismatch.
TX
RX
LINK
DATA
1000
BASE-SX