Electrical connector contact enabling detection of the presence

Details Electrical connector contact enabling detection of the presence Electrical connector contact enabling detection of the presence

1995-10-27

1998-04-21

Nguyen, Khiem

Electrical connectors

With indicating or identifying provision

Connection indicating provision

439188, H01R 300

Patent

active

057411514

ABSTRACT:
An electrical connector having a female contact that enables detection of the presence of a corresponding male contact. The female contact is divided into two parts. The two parts are electrically isolated. When a male pin is installed in the female contact, the male pin electrically connects the two parts of the female contact together. In a specific application, the female contact is in a connector for an external device on a SCSI computer bus. The first part is pulled high and serves as a sense line. The second part is pulled to ground. A pin in the mating connector electrically connects the two parts of the female contact, pulling the sense line to ground. The external device disables internal termination of the SCSI bus when the sense line is pulled low. In an alternative embodiment, the external device has two SCSI connectors, each with a two-part female contact. The external device in the alternative embodiment disables internal termination of the SCSI bus when both of the SCSI connectors have mating connectors installed.

REFERENCES:
patent: 4468612 (1984-08-01), Starr
patent: 4915648 (1990-04-01), Takase et al.
patent: 5201853 (1993-04-01), Alwine
patent: 5313595 (1994-05-01), Lewis et al.
patent: 5434516 (1995-07-01), Kosco
patent: 5562607 (1996-10-01), Gyory

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