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The three LED Indicators have the following function:

Figure 22: LED indicators

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_Out_0 (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. If external LEDs should be connected, please use a suitable signal amplifier (e.g. buffer 74HC244).

Figure 23: SV2 assignment