Abstract: An elevator button/switch arrangement includes a face plate; nine buttons mounted to the face plate; a button actuation portion associated with each button and suppling an output signal when a respective button is actuated; a 4-pin connector connected with each button actuation portion; a COP interface board receiving the output signals from the pin connectors and supplying motor control signals to a motor to control movement of an elevator; and an interface board including a 40-pin connector connected with the 4-pin connectors, a 20-pin connector connected with the COP interface board, and wiring connected between the 40-pin connector and the 20-pin connector for reducing the number of output signals from the 36 active pins to a maximum of 20 output signals for supply to the COP interface board from the 20-pin connector.