Data flow control system

Details Data flow control system Data flow control system

1982-08-04

1983-11-15

Springborn, Harvey E.

Boots, shoes, and leggings

364200, G06F 312, G06F 1110

Patent

active

044159862

ABSTRACT:
A data link processor, which is basically a peripheral-controller for interfacing a main host computer system to a peripheral terminal unit, forms part of an I/O subsystem in which a base module unit houses a plurality of such peripheral-controllers (data link processors). Each base module carries a distribution control circuit card which provides a communication interface between the main host computer and the peripheral-controller. Each base module also carries a maintenance test circuit card for diagnostic testing of the peripheral-controllers. A data flow control circuit means controls direction of data transfer (a) between the host computer and peripheral-controller and (b) between the maintenance test circuit and the peripheral-controller.

REFERENCES:
patent: 4280193 (1981-07-01), Baun et al.
patent: 4370730 (1983-01-01), Chadra
patent: 4371950 (1983-02-01), Chadra

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