This module is also used for elevator control. Note: Do not use any power supply other than the KT-PC4204 to repower the Combus. If a power supply other than the KT-PC4204 is used, the Combus repower function will not operate as intended. 2. Specifications Current Draw: 30 mA (from Combus) 16VAC/40VA transformer required Maximum 7Ah battery required Connects to the controller via 4-wire Combus Four programmable relay contacts rated 2A, 30VDC AUX current: 1.0A max. Tamper contact input Can b