GB1103494A - Improvements in or relating to automatic telephone exchange systems - Google Patents

Improvements in or relating to automatic telephone exchange systems

Info

Publication number
GB1103494A
GB1103494A GB3912665A GB3912665A GB1103494A GB 1103494 A GB1103494 A GB 1103494A GB 3912665 A GB3912665 A GB 3912665A GB 3912665 A GB3912665 A GB 3912665A GB 1103494 A GB1103494 A GB 1103494A
Authority
GB
United Kingdom
Prior art keywords
equipment
cross
bar
automatic telephone
exchange systems
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
GB3912665A
Inventor
Leslie James Browell
Albert Edward Page
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
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 Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB3912665A priority Critical patent/GB1103494A/en
Publication of GB1103494A publication Critical patent/GB1103494A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

1,103,494. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 13 Sept., 1966 [14 Sept., 1965], No. 39126/65. Heading H4K. In an exchange employing cross-bar switches operating on the self-steering principle, such as that described in Specification 890,235, and also including Strowger switches, and in which one or more junction groups are available to both types of equipment, backward markings being extended from idle ones of the junctions to the cross-bar equipment when the required group has been determined, the backward markings are delayed for a brief period in order to prevent the possibility of the Strowger equipment and the cross-bar equipment switching to the same outgoing relay set. Specifications 1,040,934 and 1,077,472, also are referred to.
GB3912665A 1965-09-14 1965-09-14 Improvements in or relating to automatic telephone exchange systems Expired GB1103494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3912665A GB1103494A (en) 1965-09-14 1965-09-14 Improvements in or relating to automatic telephone exchange systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3912665A GB1103494A (en) 1965-09-14 1965-09-14 Improvements in or relating to automatic telephone exchange systems

Publications (1)

Publication Number Publication Date
GB1103494A true GB1103494A (en) 1968-02-14

Family

ID=10407775

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3912665A Expired GB1103494A (en) 1965-09-14 1965-09-14 Improvements in or relating to automatic telephone exchange systems

Country Status (1)

Country Link
GB (1) GB1103494A (en)

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