These simple application boards constitute a bidirectional Mesh networked remote control system. Each board has 1-input, 1-output, a 4-bit global address and a 4-bit Unit ID (hence "M1144"). A complete system consists of a master board (which initiates communication burst cycles) and up to 15 slave units. Any input activation on any slave (or the master) closes the relays on all units on the system. This makes the M1144 an ideal platform for an alarm system.