GB1259001A - - Google Patents
Info
- Publication number
- GB1259001A GB1259001A GB1259001DA GB1259001A GB 1259001 A GB1259001 A GB 1259001A GB 1259001D A GB1259001D A GB 1259001DA GB 1259001 A GB1259001 A GB 1259001A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switches
- switch
- tdm
- space
- exchange
- 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
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
1,259,001. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. 18 Dec., 1969 [2 Jan., 1969], No. 220/69. Heading H4K. In an AEI type sectionalized exchange utilizing D switches for linking different sections (planes), these switches also give access to a PCM, TDM switching network that is under the general control of the main space switching network's common control circuit. Group equipments are provided for terminating i.c./o.g. PCM junctions, and audio links from the D switches, on the TDM switch, those equipments allocated to the audio links incorporating A/D converters for obvious reasons. The TDM control units (Fig. 2) are buffered for overall control purposes via a boss system and interface unit to the exchange main control units MCU. The space division switch utilizes reed relay or cross-bar matrices comprising a plurality of arrays of B, C switches, and a plurality of A switches that terminate lines, trunks or registers have access to each array. The time switch is of 4-wire type incorporating a cross-point network terminated in a plurality of time slot interchanging memories. Path simulating networks are used for route finding through the time switch while interrogator markers are used in the space switch. (For Figures see next page.)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22069 | 1969-01-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1259001A true GB1259001A (en) | 1972-01-05 |
Family
ID=9700533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1259001D Expired GB1259001A (en) | 1969-01-02 | 1969-01-02 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE743918A (en) |
| CH (1) | CH516271A (en) |
| ES (1) | ES375137A1 (en) |
| FR (1) | FR2027684A1 (en) |
| GB (1) | GB1259001A (en) |
-
1969
- 1969-01-02 GB GB1259001D patent/GB1259001A/en not_active Expired
- 1969-12-24 CH CH1920569A patent/CH516271A/en not_active IP Right Cessation
- 1969-12-31 BE BE743918D patent/BE743918A/xx unknown
-
1970
- 1970-01-02 ES ES375137A patent/ES375137A1/en not_active Expired
- 1970-01-02 FR FR7000023A patent/FR2027684A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| ES375137A1 (en) | 1972-03-16 |
| BE743918A (en) | 1970-06-30 |
| CH516271A (en) | 1971-11-30 |
| FR2027684A1 (en) | 1970-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |