WO1991007786A1 - Commutateur de cable programmable - Google Patents

Commutateur de cable programmable Download PDF

Info

Publication number
WO1991007786A1
WO1991007786A1 PCT/US1990/006540 US9006540W WO9107786A1 WO 1991007786 A1 WO1991007786 A1 WO 1991007786A1 US 9006540 W US9006540 W US 9006540W WO 9107786 A1 WO9107786 A1 WO 9107786A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
switch assembly
cable
input
connector
Prior art date
Application number
PCT/US1990/006540
Other languages
English (en)
Inventor
Jim J. Muffett
Original Assignee
Muffett Jim J
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Muffett Jim J filed Critical Muffett Jim J
Publication of WO1991007786A1 publication Critical patent/WO1991007786A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0293—Terminal boxes for telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/323—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]

Definitions

  • the present invention generally relates to the field of com ⁇ puter peripherals and more particularly, is directed to a programma ⁇ ble cable switch.
  • EIA Elec ⁇ tronic Industries Association
  • DTE data terminal equipment
  • DCE data circuit terminating equipment
  • the EIA RS-232-C standard usually is implemented with male and female 25-pin connectors, DB25P and DB25S, respectively, or their equivalents.
  • the male pin connector is normally installed on the DTE and the female connector on the DCE.
  • the pin assignments for the RS-232-C standard are shown in Table l below:
  • pins 1 through 8 and 20 are always used.
  • the remaining pins may or may not be used depending on the circum ⁇ stances.
  • some applications may not use the entire standard and may leave out certain control lines which may not be needed at the time.
  • a cable switch which can be programmed for a plurality of different cable connections.
  • the cable switch permits the use of standard "off the shelf” cables.
  • the switch has mating connectors which allow it to be inserted into the cable between the devices to be connected and then programmed for the particular installation. Pro ⁇ gramming is accomplished by setting various "line switches" as neces ⁇ sary.
  • the cable switch may be re-programmed as many times as desired. Thus, a manufacturer need only include the line switch settings for installation of their product without the need for a cus ⁇ tom cable.
  • FIGS. 1 and 3 are schematic diagrams of a programmable cable switch in accordance with the present invention.
  • Figure 2 is a mechanical diagram illustrating the overall con ⁇ struction of one embodiment of a programmable cable switch in accordance with the present invention.
  • Figure 4 is a mechanical diagram illustrating the overall con ⁇ struction of another embodiment of a programmable cable switch in accordance with the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • the programmable cable switch in accordance with the present invention is formed of a switch assembly 1 which includes a plurality of line switches 2.
  • the switches are rep ⁇ resented by an "X" in Figure 1.
  • X For clarity, only a few of the line switches are illustrated in Figure 1. It should be understood, how ⁇ ever, that line switches may be located at each intersection of a hor ⁇ izontal and vertical line as shown in Figure 1.
  • each line switch 2 in the same vertical row is con ⁇ nected to a respective line from connector 3.
  • the other side of the switch is connected to a selected line(s) from connector 4.
  • any line from connector 3 may be connected to any line from connector 4 by clos ⁇ ing the appropriate line switch.
  • Figure 2 illustrates a physical embodiment of Applicant's pro ⁇ grammable cable switch.
  • input connector 3 and output connector 4 may be either a male 25 pin DB-25 plug or a female DB-25 socket as they are known in the art.
  • the connectors are connected to a printed circuit board 5 which has circuit traces connecting the individual lines from the connectors to switch assem ⁇ bly 1 in the manner shown in Figure 1.
  • Switch assembly 1 may be a printed circuit board matrix type switch as is well known in the art, such as one manufactured by the Amp Corporation.
  • the matrix switch may be an 8 by 8, 9 by 9, 10 by 10 or any other matrix combination as needed.
  • a snap on cover 6 is designed to fit over printed circuit board 5 to provide protection for switch assembly 1 after the individual line switches have been set.
  • Cover 6 also shields switch assembly 1 from dust which could cause unreliable operation of the switch assembly. As shown in Figure 2, cover 6 is designed to cover only printed circuit board 5. The cover may also be designed to cover a portion of connectors 3 and 4 as represented by the dotted lines in Figure 6.
  • Figure 3 illustrates another switching scheme.
  • a line switch may be located at each intersection of a horizontal and vertical line.
  • switch closures at locations represented by an "X" results in pins 2 and 3 from input connector 3 being connected to pins 3 and 2, respectively, from output connector 4.
  • j -s input pins 4 and 5 are tiea together
  • input pins 6, 8 and 20 also are . tied together and pin 11 is wired straight through.
  • the (S) and (s) pins make it very easy to buss signals onto multiple pins.
  • Figure 4 illustrates a further embodiment of Applicant's inven ⁇ tion showing the use of a USOC connector on one side of switch assembly 1.
  • a USOC connector on one side of switch assembly 1.
  • a programmable cable switch in accordance with the present invention fully addresses the needs in the prior art for a simple and cost effective way of quickly modifying a standard cable for an otherwise custom installation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

Commutateur de câble (1) pouvant être programmé selon une pluralité de connexions différentes. Le commutateur de câble (1) autorise l'utilisation de câbles classiques 'standard' et disponibles. Le commutateur possède des prises de raccordement (3, 4) qui lui permettent d'être intercalé dans le câble entre les appareils à raccorder et ensuite d'être programmé suivant l'installation en question. La programmation s'effectue par le positionnement de divers 'interrupteurs de câble' selon le besoin. L'interrupteur de câble (1) peut être reprogrammé autant de fois que l'on souhaite. Ainsi, un fabricant est seulement obligé d'inclure les positonnements des commutateurs de câble en vue de l'installation de son matériel sans qu'il soit nécessaire d'utiliser un câble fabriqué sur mesure.
PCT/US1990/006540 1989-11-16 1990-11-16 Commutateur de cable programmable WO1991007786A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43717589A 1989-11-16 1989-11-16
US437,175 1989-11-16

Publications (1)

Publication Number Publication Date
WO1991007786A1 true WO1991007786A1 (fr) 1991-05-30

Family

ID=23735392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/006540 WO1991007786A1 (fr) 1989-11-16 1990-11-16 Commutateur de cable programmable

Country Status (2)

Country Link
AU (1) AU7788091A (fr)
WO (1) WO1991007786A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012853A1 (fr) * 1996-09-20 1998-03-26 Aatr Informatique S.A. Procede pour la transmission synchrone de donnees numeriques, notamment au moyen d'un processeur de communication asynchrone

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523191A (en) * 1981-07-30 1985-06-11 Institut Francais Du Petrole Device for interconnecting a series of data acquisition apparatuses to a remote receiving and recording system
US4566007A (en) * 1983-05-16 1986-01-21 At&T Bell Laboratories Rearrangeable multiconnection switching networks
US4579407A (en) * 1983-09-09 1986-04-01 Technopark Mine Co., Ltd. Interface cable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523191A (en) * 1981-07-30 1985-06-11 Institut Francais Du Petrole Device for interconnecting a series of data acquisition apparatuses to a remote receiving and recording system
US4566007A (en) * 1983-05-16 1986-01-21 At&T Bell Laboratories Rearrangeable multiconnection switching networks
US4579407A (en) * 1983-09-09 1986-04-01 Technopark Mine Co., Ltd. Interface cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012853A1 (fr) * 1996-09-20 1998-03-26 Aatr Informatique S.A. Procede pour la transmission synchrone de donnees numeriques, notamment au moyen d'un processeur de communication asynchrone
FR2753864A1 (fr) * 1996-09-20 1998-03-27 Aatr Inf S A Procede pour la transmission synchrone de donnees numeriques notamment au moyen d'un processeur de communication asynchrone

Also Published As

Publication number Publication date
AU7788091A (en) 1991-06-13

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