System 4000

The evolution of a modular control and telemetry system with unusual flexibility for adapting to a wide spectrum of industrial applications is described. Basic logic functions are performed by integrated circuits. All wiring is printed. Unique design concepts permit application to a specific telemetry problem through computer selection of modules from a standard parts list. Modules plug into connectors on a mother board which forms part of the cabinet housing the system and provides all interconnections between modules. One standard mother board is used for all applications. Structuring of the system permits use on any communication channel, provides selection of bit rates from 15 to 2400 bit/s, handles long and short messages for one or an unlimited number of remote locations, and offers a choice of code security techniques.