The DMS Series (4-bit, 8-bit) optical data transmission devices enable parallel I/O data to be transmitted quickly and reliably over short distances. Typical applications include automated guided vehicles (AGV), rail-guided vehicles (RGV), overhead hoist transfer (OHT) systems and skillet conveyors where a wireless link is provided between the vehicle and a fixed docking station.  Through a pulse-modulated light beam these transceivers can send 4 or 8-bit signals from active to passive sides.