GB1362483A - Telephone switching equipment - Google Patents

Telephone switching equipment

Info

Publication number
GB1362483A
GB1362483A GB4547172A GB4547172A GB1362483A GB 1362483 A GB1362483 A GB 1362483A GB 4547172 A GB4547172 A GB 4547172A GB 4547172 A GB4547172 A GB 4547172A GB 1362483 A GB1362483 A GB 1362483A
Authority
GB
United Kingdom
Prior art keywords
board
relays
boards
relay
printed circuit
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
GB4547172A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB4547172A priority Critical patent/GB1362483A/en
Publication of GB1362483A publication Critical patent/GB1362483A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/145—Arrangements wherein electric components are disposed between and simultaneously connected to two planar printed circuit boards, e.g. Cordwood modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/22—Switches without multi-position wipers
    • H01H67/24—Co-ordinate-type relay switches having an individual electromagnet at each cross-point

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Telephone Set Structure (AREA)

Abstract

1362483 Electromagnetic selector switches; electric components STANDARD TELEPHONES & CABLES Ltd 3 Oct 1972 45471/72 Headings H1L H1N and H1R A co-ordinate matrix of sealed reed contact relays includes two boards 1, 2 of insulating material arranged parallel to each other with the relays 4, 9, between them and each mounted by one of its ends, some on one board and some on the other board in alignment with a hole 8 in the board on which it is not mounted so that a relay or a contact unit thereof can be removed via the hole 8 after it has been detached from the board on which it is mounted. The boards 1, 2 carry printed circuit wiring 7 for relays mounted thereon and further separate wiring is connected to the unmounted ends of the relays. The further separate wiring is in the form of a flexible printed circuit member 11 having a flap 13 which can be folded back when its connectors are uncoupled from the relay and area 24 is severed.
GB4547172A 1972-10-03 1972-10-03 Telephone switching equipment Expired GB1362483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4547172A GB1362483A (en) 1972-10-03 1972-10-03 Telephone switching equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4547172A GB1362483A (en) 1972-10-03 1972-10-03 Telephone switching equipment

Publications (1)

Publication Number Publication Date
GB1362483A true GB1362483A (en) 1974-08-07

Family

ID=10437342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4547172A Expired GB1362483A (en) 1972-10-03 1972-10-03 Telephone switching equipment

Country Status (1)

Country Link
GB (1) GB1362483A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee