How to Change to 12V Power Supply

ID: 139979

Description:

Steps:

  1. Remove the modem so only the open-storm board remains. This is to prevent accidentally frying the modem.
  2. Remove the JP1 and JP2 jumpers
  3. Plug in the 12V power source
  4. Using a multimeter, touch the ground to any of the ground pinouts on the board and measure the JP1 and JP2 jumpers
  5. You should see 12V on the middle and bottom pin of JP1 and 12V on the bottom pin of JP2. The top pin of JP2 should be ~ 3.6V
  6. If ~ 3.6 V measured on top JP2 jumper, then add jumper in new position.
  7. JP2 powers the modem so it's very important that it is not supplied the higher voltage, otherwise the modem will fry.
  8. Plug in the 12V power supply again and see if the JP2 jumper measures ~ 3.7V
  9. Unplug the power source and plug in the modem.
  10. Be vary careful to not skip a modem pin when plugging in and that it is oriented in the correct direction.
  11. Power back on the board and wait to see a green light on the modem (indicating that it is properly powered and trying to connect to the internet).
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