Wiring base for photoelectric scanning unit

Details Wiring base for photoelectric scanning unit Wiring base for photoelectric scanning unit

1994-04-29

1996-04-23

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

Housings

250566, 361679, G06K 712

Patent

active

055106129

ABSTRACT:
A wiring base for a bar code scanner or the like provides a conductive housing open at one face for connecting cables at various screw terminals to a circuit board providing signal processing for the signals and permitting various different-connections of the cables. The shields of the cables pass into the conductive housing to be terminated on conductive housing thereby enlisting the conductive housing as a shield around all the cables. Attachment of the scanning head to the upper face of the wiring base closes the housing to be free from the egress of dust or liquid and completes a Faraday cage around the connections while connecting two multi-pin connectors one within the base and one within the scanner, communicating the signals to the scanner. A visual indicator attached within the conductive housing indicates the presence of power and its polarity prior to connection of the scanning head to the conductive housing.

REFERENCES:
patent: 4603261 (1986-07-01), Robertson et al.
patent: 4716493 (1987-12-01), Zelkowitz
patent: 4968883 (1990-11-01), Leyshon et al.
patent: 5034856 (1991-07-01), Cook et al.
patent: 5249097 (1993-09-01), Bassin
patent: 5396062 (1995-03-01), Eisentraut et al.

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