GB822104A - Improvements in or relating to circuit arrangements for indicating single lines out of groups of lines having a common designation number, for example p.b.x. groups, in telecommunication switching systems - Google Patents

Improvements in or relating to circuit arrangements for indicating single lines out of groups of lines having a common designation number, for example p.b.x. groups, in telecommunication switching systems

Info

Publication number
GB822104A
GB822104A GB22690/57A GB2269057A GB822104A GB 822104 A GB822104 A GB 822104A GB 22690/57 A GB22690/57 A GB 22690/57A GB 2269057 A GB2269057 A GB 2269057A GB 822104 A GB822104 A GB 822104A
Authority
GB
United Kingdom
Prior art keywords
group
line
groups
lines
busy
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
GB22690/57A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB822104A publication Critical patent/GB822104A/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

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

822,104. Automatic exchange systems. SIEMENS & HALSKE A.G. July 17, [July 19, 1956], No. 22690/57. Class 40 (4). In an arrangement for marking the first free line of a P.B.X. group, incoming digits defining the group are caused to fire one tube in each of three groups E1 . . . E10, Z1 . . . Z10, H1 . . . H10, thereby operating a gate to mark a point Ka1 individual to the group. This point is connected to a chain of change-over switches U2, U6, U8, each of which is operated or not in accordance with the busy or idle condition of an associated line of a group. The marking is thereby applied to the grids of one valve in each of two groups A1 . . . An, B1 . . . Bm to fire a combination of valves indicative of that free line. The make contact U8 of the last line of the group is connected to a line Lb, so that if all lines of the group are busy R 1 fires to operate a relay which initiates the sending back of busy tone. Individual lines of the group may be called by dialling codes appropriate to the points Ka2 or Ka3 which points are connected via decoupling rectifiers to the switches U6, U8. Prevention of the setting up of a call to a busy line may be effected merely by failure to mark any of the valves A1 . . . Bm, or alternatively by causing the firing of R1 to operate a relay L which disconnects the anode supplies from all the valves. In the last case the dotted connections shown may be completed between the moving arm and the back contacts of the switches U (e.g. U8) corresponding to the last line of the group. In this case toll-break in is made possible by the firing of tube R2 which operates X to disconnect the grid of the valve R1. In this case L fails to operate and if all lines of the group are busy, connection is established to the line corresponding to U8.
GB22690/57A 1956-07-19 1957-07-17 Improvements in or relating to circuit arrangements for indicating single lines out of groups of lines having a common designation number, for example p.b.x. groups, in telecommunication switching systems Expired GB822104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES49604A DE1036935B (en) 1956-07-19 1956-07-19 Circuit arrangement for the formation of hunt groups in telecommunication switching systems

Publications (1)

Publication Number Publication Date
GB822104A true GB822104A (en) 1959-10-21

Family

ID=7487373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22690/57A Expired GB822104A (en) 1956-07-19 1957-07-17 Improvements in or relating to circuit arrangements for indicating single lines out of groups of lines having a common designation number, for example p.b.x. groups, in telecommunication switching systems

Country Status (3)

Country Link
DE (1) DE1036935B (en)
GB (1) GB822104A (en)
NL (1) NL108554C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4517757A (en) * 1982-04-16 1985-05-21 Matsushita Electric Industrial Co., Ltd. Electric iron with cord reel device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL267039A (en) * 1960-07-18
DE1172739B (en) * 1962-05-26 1964-06-25 Telefonbau Circuit arrangement for telephone systems with multiple connections
DE1171024B (en) * 1962-06-01 1964-05-27 Siemens Ag Circuit arrangement for collective and / or multiple connections in telecommunication systems, in particular telephone systems
DE1278536B (en) * 1965-07-22 1968-09-26 Siemens Ag Circuit arrangement for centrally controlled telecommunications switching, in particular telephone self-dialing systems with switching network technology for the formation of hunt groups
DE1284469B (en) * 1965-09-23 1968-12-05 Siemens Ag Circuit arrangement for telecommunication, especially telephone systems with hunt groups
DE1283915B (en) * 1966-08-12 1974-09-05 Siemens AG, Berlin und München, 8000 München Circuit arrangement for telecommunication systems, in particular telephone branch exchanges with hunt groups
DE1283915C2 (en) * 1966-08-12 1974-09-05 CIRCUIT ARRANGEMENT FOR MARKED ADJUSTABLE REMOTE COMMUNICATION SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH ANY CIRCUIT CONNECTIONS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614176A (en) * 1950-05-06 1952-10-14 Bell Telephone Labor Inc Electronic induction number group translator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4517757A (en) * 1982-04-16 1985-05-21 Matsushita Electric Industrial Co., Ltd. Electric iron with cord reel device

Also Published As

Publication number Publication date
DE1036935B (en) 1958-08-21
NL108554C (en)

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