Test access port for analyzing high-speed local area network swi

Details Test access port for analyzing high-speed local area network swi Test access port for analyzing high-speed local area network swi

1996-06-19

1999-03-02

Patel, Ajit

Multiplex communications

Diagnostic testing

Using oam cells

370242, G01R 3108

Patent

active

058780300

ABSTRACT:
An interfacing device having two operational amplifiers that have been manufactured on the same IC die have high-impedance input terminals connected directly to the two conductors of a local area network digital transmission line so as not to load or otherwise upset the impedance or other parameters of the transmission line. The output terminals of the operational amplifiers are connected to and match the input impedance of a digital transmission protocol analyzer. The gain of the operational amplifiers is arranged so as to replicate at the input of the analyzer the signals appearing on the local area network transmission line.

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