NL151238B - CIRCUIT FOR A TELECOMMUNICATIONS CENTER, IN PARTICULAR TELEPHONE EXCHANGE, WITH FOUR-WIRE TRANSFER OF SIGNAL POWER CHAINS. - Google Patents
CIRCUIT FOR A TELECOMMUNICATIONS CENTER, IN PARTICULAR TELEPHONE EXCHANGE, WITH FOUR-WIRE TRANSFER OF SIGNAL POWER CHAINS.Info
- Publication number
- NL151238B NL151238B NL6915092A NL6915092A NL151238B NL 151238 B NL151238 B NL 151238B NL 6915092 A NL6915092 A NL 6915092A NL 6915092 A NL6915092 A NL 6915092A NL 151238 B NL151238 B NL 151238B
- Authority
- NL
- Netherlands
- Prior art keywords
- circuit
- signal power
- telephone exchange
- wire transfer
- particular telephone
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681803389 DE1803389B2 (en) | 1968-10-16 | 1968-10-16 | CIRCUIT ARRANGEMENT FOR REMOTE COMMUNICATION SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH A COUPLING FIELD FOR FOUR-WIRE CONNECTION OF MESSAGE CIRCUITS |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6915092A NL6915092A (en) | 1970-04-20 |
NL151238B true NL151238B (en) | 1976-10-15 |
Family
ID=5710657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6915092A NL151238B (en) | 1968-10-16 | 1969-10-06 | CIRCUIT FOR A TELECOMMUNICATIONS CENTER, IN PARTICULAR TELEPHONE EXCHANGE, WITH FOUR-WIRE TRANSFER OF SIGNAL POWER CHAINS. |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5537157B1 (en) |
AT (1) | AT294930B (en) |
BE (1) | BE740380A (en) |
DE (1) | DE1803389B2 (en) |
FR (1) | FR2027523A6 (en) |
GB (1) | GB1258487A (en) |
NL (1) | NL151238B (en) |
SE (1) | SE346671B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1560192A (en) * | 1977-02-07 | 1980-01-30 | Int Standard Electric Corp | Continuously expandable switching network |
-
1968
- 1968-10-16 DE DE19681803389 patent/DE1803389B2/en active Pending
-
1969
- 1969-10-06 NL NL6915092A patent/NL151238B/en unknown
- 1969-10-14 AT AT968569A patent/AT294930B/en not_active IP Right Cessation
- 1969-10-14 FR FR6935217A patent/FR2027523A6/fr not_active Expired
- 1969-10-15 GB GB1258487D patent/GB1258487A/en not_active Expired
- 1969-10-16 SE SE1424069A patent/SE346671B/xx unknown
- 1969-10-16 JP JP8226369A patent/JPS5537157B1/ja active Pending
- 1969-10-16 BE BE740380D patent/BE740380A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL6915092A (en) | 1970-04-20 |
GB1258487A (en) | 1971-12-30 |
AT294930B (en) | 1971-12-10 |
DE1803389B2 (en) | 1971-07-01 |
FR2027523A6 (en) | 1970-10-02 |
BE740380A (en) | 1970-04-16 |
JPS5537157B1 (en) | 1980-09-26 |
DE1803389A1 (en) | 1970-07-09 |
SE346671B (en) | 1972-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NZ80 | Patents of addition are not granted since law of 1.1.78 |
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