Browse Prior Art Database

Twinaxial Cable Disconnect Module

IP.com Disclosure Number: IPCOM000040140D
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 71K

Publishing Venue

IBM

Related People

Hardin, JT: AUTHOR [+4]

Abstract

This article describes an easy, reliable, low cost method for twinaxial cable connection and disconnection. (Image Omitted) In a multidrop communication system (Fig. 1) between a host and plural terminal devices, each device must be able to function in one of two modes: in the middle of the line, or as the last device on the line. If the device is in the middle of the line, it must be able to pass information through to the next device on the line. If the device is at the end of the line, it must terminate the line correctly to insure proper operation of the entire link. The twinaxial disconnect module (TDM), shown in Fig. 2, consists of a printed circuit card assembly 1 and a two-piece plastic cover 2, 3. The assembly 1 is trapped between the covers after they are snapped together.

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Twinaxial Cable Disconnect Module

This article describes an easy, reliable, low cost method for twinaxial cable connection and disconnection.

(Image Omitted)

In a multidrop communication system (Fig. 1) between a host and plural terminal devices, each device must be able to function in one of two modes: in the middle of the line, or as the last device on the line. If the device is in the middle of the line, it must be able to pass information through to the next device on the line. If the device is at the end of the line, it must terminate the line correctly to insure proper operation of the entire link. The twinaxial disconnect module (TDM), shown in Fig. 2, consists of a printed circuit card assembly 1 and a two-piece plastic cover 2, 3. The assembly 1 is trapped between the covers after they are snapped together. The edges 4, 5, 6 of the board assembly serve as guide rails for mating edges within 2 and 3 and also partially support the TDM. Snaps 7 on 3 are received in apertures 8 in 2 to securely hold 2, 3 and 4 together without fasteners. Two snaps 9 are received in apertures 10, securing the TDM to the I/O panel 11 of a terminal device. The TDM is preferably keyed so that it cannot be plugged into the I/O panel incorrectly. The assembly 1 includes two connectors 12, 13 each having a pair of openings 14 for receiving a pair of mating pins from a respective twinaxial cable. The electrical connections for 12, 13 are shown in Fig. 3 as ports 12A, 13A. When the m...