Take pictures of the inside of the keypads BEFORE you disassemble any of it.
Take pictures of the Communicator wiring BEFORE unplugging it.
Take pictures of ALL power supplies BEFORE disconnecting them.
WARNING!
Never plug in, unplug, remove PCB modules when the unit is powered on. You may unplug only the power connector while power is turned on.
WARNING!-
DO NOT REMOVE WIRES FROM THE 4 PIN POWER & DATA CONNECTOR
It is NOT necessary to remove the wires from the 4 pin Power & Data Connector. Doing so may complicate the conversion since Global has NO WAY TO KNOW WHAT EACH COLOR WIRE MEANS IN YOUR APPLICATION!
Step 1. Remove the 4 pin black connector from the MSTC keypad by pulling the black connector directly up from the board.
Step 2. Remove the 7 position connector from the bottom of the MSTC board.
Step 3. Rotate the 4 position black connect as shown (180 degrees from what it was before) then and insert into the pins. Power should now be on.
Step 4. Connect one of the wires from the 7 position connector on the MSTC keypad to the position marked ‘C’ and the other wire to the position marked with a “NO”.
