GB1510806A - Interconnection interface - Google Patents

Interconnection interface

Info

Publication number
GB1510806A
GB1510806A GB3836275A GB3836275A GB1510806A GB 1510806 A GB1510806 A GB 1510806A GB 3836275 A GB3836275 A GB 3836275A GB 3836275 A GB3836275 A GB 3836275A GB 1510806 A GB1510806 A GB 1510806A
Authority
GB
United Kingdom
Prior art keywords
gsu
lsu
trunking
inputs
input
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3836275A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1510806A publication Critical patent/GB1510806A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

1510806 Trunking in automatic exchanges INTERNATIONAL STANDARD ELECTRIC CORP 18 Sept 1975 [26 Sept 1974] 38362/75 Heading H4K In a switching network including a plurality of line selection units LSU and of group selection units GSU, each unit being provided with a number of input or output connectors 0-15 each having a plurality of wires, some connectors are joined directly by multiple wire link cables while others are joined via an interconnection device B1. The internal wiring of B1-Fig. 4-is arranged so as to afford the most even distribution of LSU outputs over GSU inputs. Both LSU's and GSU's are multistage networks, Fig. 1 (not shown), the inputs to the LSU's being from line circuits while the outputs from the GSU's are to junctors. In the example of Fig. 3, in which each input or output connector and link cable contains eight wires, adoption of the inter-unit trunking shown in solid lines results in an "even" interconnection of the first fifteen (0-14) inputs and outputs. Within the interconnection device B I the wiring takes the form shown in Fig. 4, this providing the most "even" distribution. In this case, device B I has four input and four output connectors, one of each being interconnected. The specification shows mathematically how the most "even" trunking and wiring distribution may be arrived at for differing numbers of the units LSU/GSU. A memory map may be used to record the busy/free state of paths through the network.
GB3836275A 1974-09-26 1975-09-18 Interconnection interface Expired GB1510806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7432390A FR2286572A1 (en) 1974-09-26 1974-09-26 INTERCONNECTION INTERFACE

Publications (1)

Publication Number Publication Date
GB1510806A true GB1510806A (en) 1978-05-17

Family

ID=9143440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3836275A Expired GB1510806A (en) 1974-09-26 1975-09-18 Interconnection interface

Country Status (2)

Country Link
FR (1) FR2286572A1 (en)
GB (1) GB1510806A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055944A1 (en) * 1981-01-02 1982-07-14 T-Bar Incorporated Matrix switching system
EP0622965A2 (en) * 1993-04-30 1994-11-02 Siemens Aktiengesellschaft Connection network and method for expanding the connection network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055944A1 (en) * 1981-01-02 1982-07-14 T-Bar Incorporated Matrix switching system
EP0622965A2 (en) * 1993-04-30 1994-11-02 Siemens Aktiengesellschaft Connection network and method for expanding the connection network
EP0622965A3 (en) * 1993-04-30 1997-04-09 Siemens Ag Connection network and method for expanding the connection network.

Also Published As

Publication number Publication date
FR2286572B3 (en) 1977-07-08
FR2286572A1 (en) 1976-04-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee