SE311544B - - Google Patents
Info
- Publication number
- SE311544B SE311544B SE294765A SE294765A SE311544B SE 311544 B SE311544 B SE 311544B SE 294765 A SE294765 A SE 294765A SE 294765 A SE294765 A SE 294765A SE 311544 B SE311544 B SE 311544B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
- H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
-
- 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)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Exchange Systems With Centralized Control (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES89859A DE1211282B (en) | 1964-03-05 | 1964-03-05 | Circuit arrangement for a telephone, in particular telephone branch exchange, with a central device for identification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE311544B true SE311544B (en) | 1969-06-16 |
Family
ID=7515395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE294765A SE311544B (en) | 1964-03-05 | 1965-03-05 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE660689A (en) |
| CH (1) | CH420282A (en) |
| DE (1) | DE1211282B (en) |
| FR (1) | FR1431203A (en) |
| GB (1) | GB1055867A (en) |
| NL (1) | NL150982B (en) |
| SE (1) | SE311544B (en) |
-
1964
- 1964-03-05 DE DES89859A patent/DE1211282B/en active Pending
-
1965
- 1965-02-12 NL NL6501793A patent/NL150982B/en unknown
- 1965-03-03 FR FR7770A patent/FR1431203A/en not_active Expired
- 1965-03-03 CH CH293065A patent/CH420282A/en unknown
- 1965-03-04 GB GB921365A patent/GB1055867A/en not_active Expired
- 1965-03-05 SE SE294765A patent/SE311544B/xx unknown
- 1965-03-05 BE BE660689D patent/BE660689A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1211282B (en) | 1966-02-24 |
| FR1431203A (en) | 1966-03-11 |
| NL150982B (en) | 1976-09-15 |
| CH420282A (en) | 1966-09-15 |
| NL6501793A (en) | 1965-09-06 |
| BE660689A (en) | 1965-09-06 |
| GB1055867A (en) | 1967-01-18 |