Remote sensor input boards (RESIB)

These boards connect  to a port in the HEIB board and distribute each one of the eight signals to sensors via 3-pin interfaces. The additional 2 pins are Vcc and GND, so it can be connected directly to active sensors (i.e. optical sensors / reflective sensors, etc). Passive sensors like switches can also be connected, as the input is normally pulled up to Vcc.