GB1066974A - Improvements in or relating to telecommunication exchanges - Google Patents
Improvements in or relating to telecommunication exchangesInfo
- Publication number
- GB1066974A GB1066974A GB3794864A GB3794864A GB1066974A GB 1066974 A GB1066974 A GB 1066974A GB 3794864 A GB3794864 A GB 3794864A GB 3794864 A GB3794864 A GB 3794864A GB 1066974 A GB1066974 A GB 1066974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wire
- marker
- inlets
- connection
- circuit
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Exchange Systems With Centralized Control (AREA)
- Telephonic Communication Services (AREA)
Abstract
1,066,974. Automatic exchange systems. SIEMENS A.G. Sept. 17, 1964 [Sept. 17, 1963], No. 37948/64. Heading H4K. To simplify the marker in a marker controlled switching network over which two-wire and four-wire paths are switched, the four-wire paths are set up as two separate two-wire paths established one after the other. As shown, incoming two-wire circuits EZ are served by a marker M over connector AK1, the marker receiving digits to determine which group of outgoing two-wire circuits FZ is required and setting up a connection from the calling EZ to a free one of the wanted FZ The marker controls the network over connector AK2. A calling four-wire circuit EV signals the marker to indicate the nature of the connection required by operating relay X. Each four-wire circuit is allocated two inlets to the network which inlets may or may not be adjacent but will be distributed according to a scheme. The marker in response to digits received connects one inlet to a corresponding outlet of a four-wire circuit FV in the wanted direction. Once that connection is made the marker proceeds to set up the connection between the other pair of corresponding inlets and outlets, the corresponding pairs of outlets allocated each outgoing four-wire circuit being adjacent or being distributed in the manner of the four-wire inlets.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES87337A DE1219540B (en) | 1963-09-17 | 1963-09-17 | Circuit arrangement for telecommunications switching systems, in particular telephone switching systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1066974A true GB1066974A (en) | 1967-04-26 |
Family
ID=7513680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3794864A Expired GB1066974A (en) | 1963-09-17 | 1964-09-17 | Improvements in or relating to telecommunication exchanges |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE653190A (en) |
CH (1) | CH413923A (en) |
DE (1) | DE1219540B (en) |
GB (1) | GB1066974A (en) |
NL (1) | NL6410792A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3746796A (en) * | 1970-08-18 | 1973-07-17 | Siemens Ag | Telecommunication exchange switching network for four wire switching |
US3773982A (en) * | 1970-07-31 | 1973-11-20 | Siemens Ag | Cross-switching circuitry for four-wire exchange installations |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1279112B (en) * | 1967-03-01 | 1968-10-03 | Siemens Ag | Circuit arrangement for telecommunication switching systems, in particular telephone systems with two-wire connection |
-
1963
- 1963-09-17 DE DES87337A patent/DE1219540B/en active Pending
-
1964
- 1964-09-15 CH CH1197864A patent/CH413923A/en unknown
- 1964-09-16 NL NL6410792A patent/NL6410792A/xx unknown
- 1964-09-17 GB GB3794864A patent/GB1066974A/en not_active Expired
- 1964-09-17 BE BE653190D patent/BE653190A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3773982A (en) * | 1970-07-31 | 1973-11-20 | Siemens Ag | Cross-switching circuitry for four-wire exchange installations |
US3746796A (en) * | 1970-08-18 | 1973-07-17 | Siemens Ag | Telecommunication exchange switching network for four wire switching |
Also Published As
Publication number | Publication date |
---|---|
BE653190A (en) | 1965-03-17 |
NL6410792A (en) | 1965-03-18 |
CH413923A (en) | 1966-05-31 |
DE1219540B (en) | 1966-06-23 |
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