Browse Prior Art Database

Modular Wiring System

IP.com Disclosure Number: IPCOM000085239D
Original Publication Date: 1976-Mar-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Thorpe, RA: AUTHOR

Abstract

A wiring system is provided for the attachment of secondary stations and primary stations via a logical loop structure. Further, the physical wiring can be arranged such that the secondary stations can be attached either in a loop structure or radially. Additionally, a switching function is provided whereby each station, primary or secondary, can independently bypass or insert itself into the logical loop. Where inserted, that station provides a repeater function for line termination and driving.

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Modular Wiring System

A wiring system is provided for the attachment of secondary stations and primary stations via a logical loop structure.

Further, the physical wiring can be arranged such that the secondary stations can be attached either in a loop structure or radially. Additionally, a switching function is provided whereby each station, primary or secondary, can independently bypass or insert itself into the logical loop. Where inserted, that station provides a repeater function for line termination and driving.

In a current implementation, the terminal contains relays controlled by the station which provide for connection to or bypassing of the station to the cable subsystem. It also contains a connector which allows for pluggable attachment of the station signal cable.

The wiring box contains terminal strips which allow for the hardwired connection of up to eight at a single junction point.

A disadvantage of this implentation is that all of the above-cited components are permanently installed as part of the customer-owned fixed plant wiring, and as such are not easily accessible or isolatable for maintenance.

In the improved implementation illustrated in the figure, the terminal is provided as a pluggable modular subassembly which can be located at the station for loop connection, or at the wiring box for radial connection. When the terminal is connected at the station, the station signal cable connector plugs into the terminal which in turn plugs into th...