BE645784A - - Google Patents
Info
- Publication number
- BE645784A BE645784A BE645784DA BE645784A BE 645784 A BE645784 A BE 645784A BE 645784D A BE645784D A BE 645784DA BE 645784 A BE645784 A BE 645784A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
-
- 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)
- Monitoring And Testing Of Exchanges (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES84360A DE1186913B (de) | 1963-03-26 | 1963-03-26 | Verfahren und Schaltungsanordnung zur Vermeidung von Fehleinstellungen in Einrichtungen von Fernsprechvermittlungsanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE645784A true BE645784A (de) | 1964-09-28 |
Family
ID=7511658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE645784D BE645784A (de) | 1963-03-26 | 1964-03-26 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3351721A (de) |
| JP (1) | JPS494562B1 (de) |
| BE (1) | BE645784A (de) |
| CH (1) | CH413924A (de) |
| DE (1) | DE1186913B (de) |
| GB (1) | GB1034564A (de) |
| NL (1) | NL147306B (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1278552B (de) * | 1963-03-26 | 1968-09-26 | Siemens Ag | Verfahren und Schaltungsanordnung zur Vermeidung von Fehleinstellungen in Einrichtungen von Fernsprechvermittlungsanlagen |
| GB1095574A (de) * | 1964-07-18 | |||
| DE1208367B (de) * | 1964-07-23 | 1966-01-05 | Standard Elektrik Lorenz Ag | Schaltungsanordnung zur Herstellung von Pruefverbindungen in Fernmelde-, insbesondere Fernsprechvermittlungsanlagen, die durch Markierer gesteuerte Koppelfelder aufweisen |
| DE1276124B (de) * | 1966-01-29 | 1968-08-29 | Telefunken Patent | Schaltungsanordnung zur Erkennung von Unterbrechungen, Erd- und Nebenschluessen der Zeilen- und Spaltenleitungen und Entkoppelrichtleiter in Kreuzschaltfeldern in Fernmelde-, insbesondere Fernsprechvermittlungsanlagen |
| DE1273008B (de) * | 1966-04-09 | 1968-07-18 | Boelkow Gmbh | Schaltungsanordnung zum Durchschalten und Pruefen auf richtige Markierung mehrerer verschiedenartiger Relais eines Koppelfeldes |
| DE1289883B (de) * | 1967-03-31 | 1969-02-27 | Siemens Ag | Schaltungsanordnung fuer Fernmeldevermittlungsanlagen mit in Freiwahl eingestellten Vermittlungsschaltgliedern |
| US3922499A (en) * | 1973-09-14 | 1975-11-25 | Gte Automatic Electric Lab Inc | Communication switching system network control arrangement |
| US3851311A (en) * | 1973-09-17 | 1974-11-26 | Gte Automatic Electric Lab Inc | Arrangement and method for protecting a common highway from false signals |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3175190A (en) * | 1961-02-15 | 1965-03-23 | Itt | Machine tool control circuit having a program crossbar switch and a bridge means for checking crosspoints |
| GB946840A (en) * | 1961-08-02 | 1964-01-15 | Ass Elect Ind | Improvements relating to automatic telecommunication switching systems |
| BE634094A (de) * | 1962-06-28 |
-
1963
- 1963-03-26 DE DES84360A patent/DE1186913B/de active Pending
-
1964
- 1964-03-23 GB GB12106/64A patent/GB1034564A/en not_active Expired
- 1964-03-23 US US354173A patent/US3351721A/en not_active Expired - Lifetime
- 1964-03-24 CH CH378364A patent/CH413924A/de unknown
- 1964-03-26 BE BE645784D patent/BE645784A/xx unknown
- 1964-03-26 JP JP39016532A patent/JPS494562B1/ja active Pending
- 1964-03-26 NL NL646403326A patent/NL147306B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3351721A (en) | 1967-11-07 |
| CH413924A (de) | 1966-05-31 |
| NL147306B (nl) | 1975-09-15 |
| GB1034564A (en) | 1966-06-29 |
| DE1186913B (de) | 1965-02-11 |
| NL6403326A (de) | 1964-09-28 |
| JPS494562B1 (de) | 1974-02-01 |