PLX3x Series Diagnostics and Troubleshooting
Ethernet and Serial Gateways User Manual
ProSoft Technology, Inc. Page 35 of 218
May 26, 2016
3.1.2 Ethernet Port LEDs
No physical network connection is detected. No Ethernet
communication is possible. Check wiring and cables.
Physical network connection detected. This LED must be
ON solid for Ethernet communication to be possible
The Ethernet port is actively transmitting or receiving data.
3.1.3 Serial Port LEDs (for Gateways with Serial Ports)
The port is actively receiving data.
The port is actively transmitting data.