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The four LED Indicators have the following function:
Figure 7: LED indicators
Power (POWER, blue):
•This LED is ON if the test board is connected to the USC-2.
FPGA Access (FA, yellow):
•Indicates data transfer via the USB or Ethernet connection.
Mark In Progress (MIP, red):
•This LED is parallel with the opto-insulated OPTO_OUT0 (pin 3) output of the 37-pin connector. It is ON during mark.
Operation (OP, green):
•OFF or blinking: The device is not operational
•ON: The device is operational
The LED's signals can be gripped at the multi-pin connector SV2. The pin assignment is shown below.
Figure 8: SV2 pin assignment