Powered COM Port
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Protech should have a powered COM port but if you plug in your Pole Display and nothing comes up your COM Port is not powered.You will need to follow the instruction to remove the back first, and switch the jumper for COM 4.Please unplug POS before trying this.
This is a picture of where the jumper is located on the Protech.
The COM 4 jumper for 12V is pin 3-4 (Default maybe on pin 1-2). If its Pin 1-2 you will need to change it to 3-4.
You will need to change it to Jumpers 3-4. For example please follow the section VCC12 and under JP_COM4.Once changed close the POS and plug in your Pole Display and it should power up Pole Display.