GB1428459A - Telecommunication networks and method of operation thereof - Google Patents
Telecommunication networks and method of operation thereofInfo
- Publication number
- GB1428459A GB1428459A GB950873A GB950873A GB1428459A GB 1428459 A GB1428459 A GB 1428459A GB 950873 A GB950873 A GB 950873A GB 950873 A GB950873 A GB 950873A GB 1428459 A GB1428459 A GB 1428459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switching
- highways
- processor
- digital
- zsw
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
- H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Time-Division Multiplex Systems (AREA)
- Communication Control (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
1428459 Automatic exchange systems HASLER AG SIEMENS-ALBIS AG and STANDARD TELEPHON UND RADIO AG 27 Feb 1973 [29 Feb 1972 (2)] 9508/73 Heading H4K In a digital telecommunication network, each of a number of multiplex terminals T, multiplex register into WE, and switching stages DE are considered as separate circuits blocks and the circuit blocks are interconnected using t.d.m. highways of a standard type. One such system further includes a stored program controlled processor ZSW, a non- blocking switching network DNW, analogue telephone subscribers TA, analogue concentrators A-KZ, digital telephone subscribers DT, digital concentrators D-KZ and digital teleprinter or data subscribers FT. The multiplex units T, which include A-D converters, the digital concentrators D-KZ, the register units WE, switching stages DE and the processor ZSW are interconnected by pairs of 32 channel t.d.m. highways M, one of each pair for each direction of transmission, employing a 128 Ás. frame duration and each highway includes at least one time slot for use as a control channel, one end of each highway being connected to a switching stage DE, the switching network DNW switching control as well as speech information. All highways emanating from the processor carry only control information whereas all other highways may carry control, speech and/or signalling information. To guard against faults, each switching stage is controllable from the processor ZSW via at least two separate paths, e.g. switching stage DE1 can be controlled directly using a channel of highway M1 or indirectly via highways M2, M8, M4. When the network is made operative, the processor ZSW establishes a path through the switching network to each peripheral unit with the aid of a control path search program, these paths remaining established until, due to a fault, the establishment of a new path is necessary.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH284672A CH550519A (en) | 1972-02-29 | 1972-02-29 | TELEPHONE NETWORK FOR TRANSMITTING AND TRANSMISSION OF TELEPHONY, TELEWRAPH AND DATA SIGNALS. |
CH284772A CH548723A (en) | 1972-02-29 | 1972-02-29 | TELEPHONE NETWORK FOR DIGITAL TRANSMISSION AND TRANSMISSION OF TELEPHONY, TELEPHONE AND DATA SIGNALS. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1428459A true GB1428459A (en) | 1976-03-17 |
Family
ID=25691544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB950873A Expired GB1428459A (en) | 1972-02-29 | 1973-02-27 | Telecommunication networks and method of operation thereof |
Country Status (14)
Country | Link |
---|---|
JP (1) | JPS5622196B2 (en) |
AT (1) | AT330852B (en) |
BE (1) | BE796074A (en) |
CH (2) | CH548723A (en) |
DE (1) | DE2309890C3 (en) |
ES (1) | ES412179A1 (en) |
FR (1) | FR2174164B1 (en) |
GB (1) | GB1428459A (en) |
IE (1) | IE37328B1 (en) |
IL (1) | IL41647A (en) |
IT (1) | IT979579B (en) |
LU (1) | LU67123A1 (en) |
NL (1) | NL170086C (en) |
NO (1) | NO141297C (en) |
-
1972
- 1972-02-29 CH CH284772A patent/CH548723A/en not_active IP Right Cessation
- 1972-02-29 CH CH284672A patent/CH550519A/en not_active IP Right Cessation
-
1973
- 1973-02-21 AT AT152573A patent/AT330852B/en not_active IP Right Cessation
- 1973-02-23 NO NO740/73A patent/NO141297C/en unknown
- 1973-02-27 GB GB950873A patent/GB1428459A/en not_active Expired
- 1973-02-28 NL NLAANVRAGE7302850,A patent/NL170086C/en not_active IP Right Cessation
- 1973-02-28 IE IE311/73A patent/IE37328B1/en unknown
- 1973-02-28 FR FR7307125A patent/FR2174164B1/fr not_active Expired
- 1973-02-28 DE DE2309890A patent/DE2309890C3/en not_active Expired
- 1973-02-28 BE BE128194A patent/BE796074A/en unknown
- 1973-02-28 IL IL41647A patent/IL41647A/en unknown
- 1973-02-28 LU LU67123A patent/LU67123A1/xx unknown
- 1973-02-28 ES ES412179A patent/ES412179A1/en not_active Expired
- 1973-02-28 IT IT20989/73A patent/IT979579B/en active
- 1973-02-28 JP JP2335773A patent/JPS5622196B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2309890C3 (en) | 1981-02-26 |
LU67123A1 (en) | 1973-07-06 |
ES412179A1 (en) | 1976-01-01 |
NL7302850A (en) | 1973-08-31 |
JPS5622196B2 (en) | 1981-05-23 |
IT979579B (en) | 1974-09-30 |
AT330852B (en) | 1976-07-26 |
DE2309890B2 (en) | 1980-06-04 |
IL41647A (en) | 1976-09-30 |
DE2309890A1 (en) | 1973-09-13 |
FR2174164A1 (en) | 1973-10-12 |
FR2174164B1 (en) | 1977-04-22 |
JPS48102513A (en) | 1973-12-22 |
NO141297C (en) | 1980-02-06 |
CH548723A (en) | 1974-04-30 |
ATA152573A (en) | 1975-10-15 |
NL170086B (en) | 1982-04-16 |
IE37328B1 (en) | 1977-06-22 |
IL41647A0 (en) | 1973-04-30 |
AU5267773A (en) | 1974-08-29 |
BE796074A (en) | 1973-06-18 |
NO141297B (en) | 1979-10-29 |
CH550519A (en) | 1974-06-14 |
IE37328L (en) | 1973-08-29 |
NL170086C (en) | 1982-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |