Electrical connectors – With indicating or identifying provision – Connection indicating provision
Patent
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
Hewlett--Packard Company
Nguyen Khiem
Winfield Augustus W.
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