The 3 Inputs on this I/O board will trigger when a signal is detected between approximately 4.7V and 60V. Do not connect any voltage higher than 60V to these inputs. Ground is common on this board, so the switching in your equipment needs to happen at the positive side of the circuit. Coils typically switch on the ground side of the circuit, so this board will typically not work properly for coils. It will work for other devices that have common ground.
3 High Voltage (60V max) Inputs (Common ground)
1 LED Channel port shared with LED Port 1, 2, or 3 LED ports on the main Pinnunciator board depending on which Pinnunciator port this I/O board is plugged into.
1 Digital Output for turning high power devices on and off such as motors, coils, and other devices. Identified as Digital Output 1, 2, or 3 depending on which Pinnunciator port this board is plugged into.
