What is the jumper on the Poly 2 back panel for?
- The module is using 160mA at +12V DC, 14mA at -12V DC. Additional +5V from a separate bus is not required unless using the USB Type-A host port for connecting power-hungry external gear. In such a case, there's a jumper switch on the back panel which sets the module to receive an additional +5V from your power supply.
- If you're using the Polyend Tracker with the Poly 2 USB Host port.
Polyend Tracker & Poly 2 Eurorack Integration Video Clip (https://www.youtube.com/watch?v=_3vrRQKyoys)