GB722102A - Improvements in or relating to circuit arrangement for employment in telephone installations for the selection of line groups - Google Patents

Improvements in or relating to circuit arrangement for employment in telephone installations for the selection of line groups

Info

Publication number
GB722102A
GB722102A GB2100651A GB2100651A GB722102A GB 722102 A GB722102 A GB 722102A GB 2100651 A GB2100651 A GB 2100651A GB 2100651 A GB2100651 A GB 2100651A GB 722102 A GB722102 A GB 722102A
Authority
GB
United Kingdom
Prior art keywords
group
selectors
auxiliary
main
fields
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
GB2100651A
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.)
Individual
Original Assignee
Individual
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
Priority to CH277835D priority Critical patent/CH277835A/en
Priority to FR1017698D priority patent/FR1017698A/en
Application filed by Individual filed Critical Individual
Priority to GB2100651A priority patent/GB722102A/en
Publication of GB722102A publication Critical patent/GB722102A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

722,102. Automatic exchange systems. STRUB, R. Sept. 5, 1951, No. 21006/51. Class 40 (a). Each selector of three or more groups of selectors, i.e. line finders, preselectors or numerical selectors, is provided with two wiper sets, one serving a main contact field and the other an auxiliary contact field, the partial multiple connecting the main fields of a selector group being multipled to the partial multiple connecting the auxiliary fields of the next group and the partial multiple connecting the main fields of the last group being multipled to the partial multiple connecting the auxiliary fields of the first group. Each group such as Tn of 100 subscribers' lines can be reached over the main contact field of one group LWn of final selectors or the auxiliary contact field of another group LW1. The preceding stage consists of 200-point group selectors such as 111GW having 20 outlets from each decade gwdl . . . gwdn, the first ten or the odd outlets being connected to the main wiper set 1<1> . . . n<1> of one final selector group and the last ten or the even outlets being connected over wiperswitching relays U1 . . . Un and their contactsu1 . . . un connecting up the auxiliary wiper set 1<11>. . . n<11> of selectors of another group.
GB2100651A 1951-09-05 1951-09-05 Improvements in or relating to circuit arrangement for employment in telephone installations for the selection of line groups Expired GB722102A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH277835D CH277835A (en) 1951-09-05 1949-05-18 Circuit arrangement in telephone systems for controlling groups of lines.
FR1017698D FR1017698A (en) 1951-09-05 1950-05-12 Installation device in telephone systems for controlling trunk groups
GB2100651A GB722102A (en) 1951-09-05 1951-09-05 Improvements in or relating to circuit arrangement for employment in telephone installations for the selection of line groups

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2100651A GB722102A (en) 1951-09-05 1951-09-05 Improvements in or relating to circuit arrangement for employment in telephone installations for the selection of line groups

Publications (1)

Publication Number Publication Date
GB722102A true GB722102A (en) 1955-01-19

Family

ID=10155583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2100651A Expired GB722102A (en) 1951-09-05 1951-09-05 Improvements in or relating to circuit arrangement for employment in telephone installations for the selection of line groups

Country Status (3)

Country Link
CH (1) CH277835A (en)
FR (1) FR1017698A (en)
GB (1) GB722102A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973641C (en) * 1950-11-18 1960-05-19 Standard Elek K Lorenz Ag Circuit arrangement for the determination and evaluation of different authorizations of subscriber stations for switching systems

Also Published As

Publication number Publication date
FR1017698A (en) 1952-12-17
CH277835A (en) 1951-09-15

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