Module for a serial multiplex data input protection circuit

Details Module for a serial multiplex data input protection circuit Module for a serial multiplex data input protection circuit

1995-11-30

1998-12-22

Pham, Chi H.

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

361 91, H04J 300

Patent

active

058526110

ABSTRACT:
A programmable data link module for use with a time division multiplex data bus includes an input and a high voltage protection circuit to prevent outputting of data to the data bus under several different operation conditions. These include programming of the data link module and verification of the programming. The data link module also inhibits the outputting of data signals to the data bus in response to changes of the input signals from a local input device until the power to the data link module has stabilized for a preselected period of time. The high voltage protection circuit protects the data link module from excessive overvoltage from other devices connected to the data bus.

REFERENCES:
patent: 4234921 (1980-11-01), Kinoshita et al.
patent: 4808994 (1989-02-01), Riley
patent: 5146560 (1992-09-01), Goldberg et al.
patent: 5577172 (1996-11-01), Vatland et al.

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