Integrated module handle and chassis bulkhead for reducing elect

Details Integrated module handle and chassis bulkhead for reducing elect Integrated module handle and chassis bulkhead for reducing elect

1989-04-28

1990-11-13

Tolin, Gerald P.

Electricity: electrical systems and devices

Miscellaneous

174 35R, 361212, 361415, H05K 900

Patent

active

049706250

ABSTRACT:
A chassis and circuit modules for controlling electromagnetic interference in high-speed digital transceiver circuits. The impedance between a reference ground point and the transceiver circuits and a chassis wall through which the transceiver circuit signals pass is kept very low by intimate physical contact between a conductive bulkhead section of the module and the ground plane used by the transceiver. In particular, there is disclosed an arrangement whereby a plurality of modules are placed adjacent one another in a cabinet. Each of the modules contains a conductive bulkhead section or handle, which engages other adjacent bulkhead sections, and which may have an input/output connector mounted thereon. Each module also has a printed circuit board mounted to the bulkhead section so that a forward-circuit reference path reserved for use by transceiver circuits is positioned adjacent the connector and electrically connected to both the connector and the front section via a low impedance path. No partitions between the bulkhead sections are necessary since conductive springs formed on the lateral edges of the bulkheads provide electrical continuity between them.

REFERENCES:
patent: 4286335 (1981-08-01), Aichler
patent: 4439809 (1984-03-01), Weight
patent: 4531176 (1985-07-01), Beecher, II
patent: 4546407 (1985-10-01), Benenati
patent: 4631641 (1986-12-01), Brombal
patent: 4823397 (1989-04-01), Hewitt

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