Patent ID: 6265878
Filing Date: 2001-07-24
Classification: B60Q,G01R

Abstract:
Apparatus for testing operation of devices on a vehicular trailer, the apparatus comprising means including a first electrical power source for encoding and wirelessly transmitting a plurality of different digital signals each corresponding to one of the devices, said encoding and transmitting means including a plurality of switches each corresponding to one of the devices, a transmitter, means for detecting closure of one of said switches and for inputting to said transmitter a serial bit stream corresponding thereto along with a digital code identifying said transmitter as originator thereof, the apparatus further comprising a second electrical power source, means for receiving the wirelessly transmitted signals, and means responsive to the digital signals received by said receiving means for connecting said second power source to the corresponding devices respectively whereby a preselected device is tested by transmitting the serial bit stream corresponding to the preselected device along with the digital code identifying said transmitter as originator thereof.