GB1528300A - Telecommunication exchange - Google Patents

Telecommunication exchange

Info

Publication number
GB1528300A
GB1528300A GB3526777A GB3526777A GB1528300A GB 1528300 A GB1528300 A GB 1528300A GB 3526777 A GB3526777 A GB 3526777A GB 3526777 A GB3526777 A GB 3526777A GB 1528300 A GB1528300 A GB 1528300A
Authority
GB
United Kingdom
Prior art keywords
path
junctors
network
free
group
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
GB3526777A
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 GB3526777A priority Critical patent/GB1528300A/en
Priority to BR7805375A priority patent/BR7805375A/en
Publication of GB1528300A publication Critical patent/GB1528300A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

1528300 Automatic exchange systems STANDARD TELEPHONES & CABLES Ltd 23 Aug 1977 35267/77 Heading H4K In an exchange in which junctors, registers and subscribers lines are connected to one side of the network, e.g. as in TXE4, and wherein a calling subscriber line is first connected via the network to a register sender RS, e.g. path 1, 2, path selection for a call capable of using any free one of a group of outgoing junctions OGJ is performed such that a path 3, 4 is selected between the calling line and a free one of the group of junctors and then a path 5, 6 between the register sender RS and the particular junctor is selected and set up. On completion of sending the paths 1, 2, 5, 6, are dropped and the preselected path 3, 4 switched through. This order for the path selection is said to reduce the probability of the call being blocked.
GB3526777A 1977-08-23 1977-08-23 Telecommunication exchange Expired GB1528300A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3526777A GB1528300A (en) 1977-08-23 1977-08-23 Telecommunication exchange
BR7805375A BR7805375A (en) 1977-08-23 1978-08-21 AUTOMATIC TELECOMMUNICATIONS CENTRAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3526777A GB1528300A (en) 1977-08-23 1977-08-23 Telecommunication exchange

Publications (1)

Publication Number Publication Date
GB1528300A true GB1528300A (en) 1978-10-11

Family

ID=10375797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3526777A Expired GB1528300A (en) 1977-08-23 1977-08-23 Telecommunication exchange

Country Status (2)

Country Link
BR (1) BR7805375A (en)
GB (1) GB1528300A (en)

Also Published As

Publication number Publication date
BR7805375A (en) 1979-05-02

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Legal Events

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