GB1485629A - Telecommunication switching systems - Google Patents

Telecommunication switching systems

Info

Publication number
GB1485629A
GB1485629A GB55322/73A GB5532273A GB1485629A GB 1485629 A GB1485629 A GB 1485629A GB 55322/73 A GB55322/73 A GB 55322/73A GB 5532273 A GB5532273 A GB 5532273A GB 1485629 A GB1485629 A GB 1485629A
Authority
GB
United Kingdom
Prior art keywords
types
register
call
control unit
control
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
GB55322/73A
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 GB55322/73A priority Critical patent/GB1485629A/en
Priority to ZA00746130A priority patent/ZA746130B/en
Priority to IE2421/74A priority patent/IE40787B1/en
Publication of GB1485629A publication Critical patent/GB1485629A/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
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

1485629 Automatic exchange systems STANDARD TELEPHONES & CABLES Ltd 19 Nov 1974 [29 Nov 1973] 55322/73 Heading H4K An automatic telecommunications exchange includes at least two types of register each of which can be seized for use for a call, at least two common control units no single one of which has access to all of said registers, and an allotting means which receives from the control units information concerning the types of free register to which each control unit has access, and in dependence thereon allots a control unit to control connection of a call. As described the control units are digital processors which, with the aid of a route selecting marker, control connections through a switching network sequentially as selected by an allotter. The registers are of at least two types, e.g. dial pulse and multi-frequency or local and trunk registers. In one embodiment a single allotter pre-allots a control unit having all or most types of register free or one having a particular register type for which prompt connection is desirable. In another embodiment a control unit is allotted upon detection of a call having regard also to the type of call. In a further embodiment two allotters are provided each dealing with one or a group of register types only.
GB55322/73A 1973-11-29 1973-11-29 Telecommunication switching systems Expired GB1485629A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB55322/73A GB1485629A (en) 1973-11-29 1973-11-29 Telecommunication switching systems
ZA00746130A ZA746130B (en) 1973-11-29 1974-09-26 Improvements in or relating to telecommunication switching systems
IE2421/74A IE40787B1 (en) 1973-11-29 1974-11-25 Improvements in or relating to telecommunication switchingsystems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB55322/73A GB1485629A (en) 1973-11-29 1973-11-29 Telecommunication switching systems

Publications (1)

Publication Number Publication Date
GB1485629A true GB1485629A (en) 1977-09-14

Family

ID=10473571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55322/73A Expired GB1485629A (en) 1973-11-29 1973-11-29 Telecommunication switching systems

Country Status (3)

Country Link
GB (1) GB1485629A (en)
IE (1) IE40787B1 (en)
ZA (1) ZA746130B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421524A1 (en) * 1978-03-30 1979-10-26 Siemens Ag ASSEMBLY FOR AN INDIRECT CONTROL COMMUNICATION INSTALLATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421524A1 (en) * 1978-03-30 1979-10-26 Siemens Ag ASSEMBLY FOR AN INDIRECT CONTROL COMMUNICATION INSTALLATION

Also Published As

Publication number Publication date
ZA746130B (en) 1975-10-29
IE40787L (en) 1975-05-29
IE40787B1 (en) 1979-08-15

Similar Documents

Publication Publication Date Title
GB1446609A (en) Time division multiplexed digital switching apparatus
GB1521127A (en) Telecommunication systems
GB1001903A (en) Improvements in or relating to automatic telecommunication exchanges
GB1485629A (en) Telecommunication switching systems
GB1455799A (en) Telecommunication system using tdm switching
GB1207365A (en) A non-blocking time-division multiplex switching network
GB1162484A (en) Unit for Selective Blocking of Subscribers for Telephone Exchanges.
GB1369670A (en) Communication systems
GB1380090A (en) Time-division switching exchange
GB981339A (en) Improvements in or relating to time division multiplex switching systems
GB1015359A (en) Telephone switching systems
GB804042A (en) Improvements in or relating to telephone systems
JPS5614760A (en) Multiground incoming transfer system by time
GB1053324A (en)
GB1218344A (en) Improvements in or relating to private telephone exchanges
GB1078337A (en) Automatic telecommunication exchange
GB1130647A (en) A telephone exchange with an arrangement for automatic fee announcement in direct distance dialling
GB786821A (en) Circuit arrangements for markers in exchange systems, particularly telephone systems
GB1453895A (en) Telecommunication switching systems
GB787031A (en) Improvements in private automatic exchanges
GB1162782A (en) Telecommunication Exchange System with Concentrators
GB1076780A (en) Improvements in or relating to automatic telecommunication systems
GB1485630A (en) Telephone exchanges
GB1420853A (en) Switching network and peripheral circuits for telecommunications system
GB863854A (en) Improvements in or relating to telephone systems

Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee