LM2 Hardware: How the GPI input is wired


How are the GPI connectors wired? 


Though the DIN connectors we have a GPI input by which you can Pause or Start/Stop the Rader/Log – the specific functionality is set in the Icon.

If you like to use the LM2 GPI input you should do it like this.

All 3 DIN connectors are connected in parallel on pin 3, which is the GPI input. It’s a 0-5V DC input and with a 10kOhm pull up to 5V internally. So you connect pin 3 to ground for activating the GPI input and leave the input open for deactivating the GPI input. Ground is the middle pin.

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