Abstract :
Few businesses can successfully operate today without rapid communications, both internally and to the marketplace. This acceleration has gone hand in hand with the increase in mechanization of industry and will become even more important as automation takes a greater hold. To assist in the improvement of operating efficiency, close contact must be maintained with both supervisory and service people whose responsibility it is to see that no unexpected delays, work stoppages or shutdowns occur. These are people who are on the move: plant foremen and supervisors, plant engineers, maintenance and service crews, plant and machine repairmen and security forces. Immediate contact with them is now being kept by radio and inductive paging systems. An analysis of such systems is presented, and a new system is described which is built around a control which permits interconnection to a dial telephone branch exchange.
