ES412212A1 - Protection method against false connections in telecommunication systems - Google Patents
Protection method against false connections in telecommunication systemsInfo
- Publication number
- ES412212A1 ES412212A1 ES412212A ES412212A ES412212A1 ES 412212 A1 ES412212 A1 ES 412212A1 ES 412212 A ES412212 A ES 412212A ES 412212 A ES412212 A ES 412212A ES 412212 A1 ES412212 A1 ES 412212A1
- Authority
- ES
- Spain
- Prior art keywords
- order
- central control
- controlled
- against false
- protection method
- 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
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Communication Control (AREA)
- Exchange Systems With Centralized Control (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
A method of protection against false connections in telecommunication exchanges, where the exchange operates digitally and in TIM mode, under central control, especially programmed central control. Characterized in that, each command from the central control to a controlled unit, contains, in addition to the address of the element to be controlled and the corresponding information, additional information that indicates the expected situation of the routed element, before the order comes into operation. . After the arrival of said order to the unit to be controlled, the actual situation is compared with that expected and contained in the order. The execution of the order depends on the conformity of the two situations. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH449272A CH543208A (en) | 1972-03-27 | 1972-03-27 | Procedure to protect against incorrect connections in telecommunications switching systems |
Publications (1)
Publication Number | Publication Date |
---|---|
ES412212A1 true ES412212A1 (en) | 1976-01-01 |
Family
ID=4277113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES412212A Expired ES412212A1 (en) | 1972-03-27 | 1973-03-01 | Protection method against false connections in telecommunication systems |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5019305A (en) |
AU (1) | AU5349673A (en) |
BE (1) | BE797362A (en) |
CH (1) | CH543208A (en) |
DE (1) | DE2314643B2 (en) |
ES (1) | ES412212A1 (en) |
FR (1) | FR2178021B1 (en) |
GB (1) | GB1380236A (en) |
IL (1) | IL41822A0 (en) |
IT (1) | IT982613B (en) |
LU (1) | LU67276A1 (en) |
NL (1) | NL7304140A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4127742A (en) * | 1977-09-01 | 1978-11-28 | International Telephone And Telegraph Corporation | Time division telecommunication system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1488781A (en) * | 1965-08-07 | 1967-07-13 | Western Electric Co | Time division telephone system |
FR1488780A (en) * | 1965-08-07 | 1967-07-13 | Western Electric Co | Time division switching system |
-
1972
- 1972-03-27 CH CH449272A patent/CH543208A/en not_active IP Right Cessation
-
1973
- 1973-03-01 ES ES412212A patent/ES412212A1/en not_active Expired
- 1973-03-16 GB GB1291473A patent/GB1380236A/en not_active Expired
- 1973-03-19 IL IL41822A patent/IL41822A0/en unknown
- 1973-03-20 AU AU53496/73A patent/AU5349673A/en not_active Expired
- 1973-03-23 IT IT22025/73A patent/IT982613B/en active
- 1973-03-23 NL NL7304140A patent/NL7304140A/xx unknown
- 1973-03-23 DE DE19732314643 patent/DE2314643B2/en active Pending
- 1973-03-23 LU LU67276A patent/LU67276A1/xx unknown
- 1973-03-27 JP JP48035011A patent/JPS5019305A/ja active Pending
- 1973-03-27 FR FR7310876A patent/FR2178021B1/fr not_active Expired
- 1973-03-27 BE BE2052634A patent/BE797362A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL7304140A (en) | 1973-10-01 |
GB1380236A (en) | 1975-01-08 |
IT982613B (en) | 1974-10-21 |
BE797362A (en) | 1973-09-27 |
IL41822A0 (en) | 1973-05-31 |
CH543208A (en) | 1973-10-15 |
LU67276A1 (en) | 1973-08-17 |
DE2314643A1 (en) | 1973-10-18 |
AU5349673A (en) | 1974-09-26 |
DE2314643B2 (en) | 1976-05-06 |
FR2178021B1 (en) | 1976-06-11 |
JPS5019305A (en) | 1975-02-28 |
FR2178021A1 (en) | 1973-11-09 |
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