GE G60 Instruction Manual page 108

3.3 DIRECT INPUT AND OUTPUT COMMUNICATIONS MODULES
• Flashing yellow — internal mode while receiving a valid data packet
• Solid red — (switch to) internal timing mode while not receiving a valid data packet
The link/activity LED status is as follows:
• Flashing green — FPGA is receiving a valid data packet
• Solid yellow — FPGA is receiving a "yellow bit" and remains yellow for each "yellow bit"
• Solid red — FPGA is not receiving a valid packet or the packet received is invalid
3
3-46 G60 Generator Protection System
3 HARDWARE
GE Multilin