PLX3x Series
Ethernet and Serial Gateways
3.1.2 Ethernet Port LEDs
LED
LINK/ACT
100 Mbit
3.1.3 Serial Port LEDs (for Gateways with Serial Ports)
LED
RX
TX
ProSoft Technology, Inc.
May 26, 2016
State
Description
Off
No physical network connection is detected. No Ethernet
communication is possible. Check wiring and cables.
Solid Green
Physical network connection detected. This LED must be
ON solid for Ethernet communication to be possible
Off
No activity on the port.
Flashing Amber
The Ethernet port is actively transmitting or receiving data.
State
Description
Off
No activity on the port.
Flashing Green
The port is actively receiving data.
Off
No activity on the port.
Flashing Amber
The port is actively transmitting data.
Diagnostics and Troubleshooting
User Manual
Page 35 of 218
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