CH481538A - Schaltungsanordnung zur Schleifenstromüberwachung - Google Patents
Schaltungsanordnung zur SchleifenstromüberwachungInfo
- Publication number
- CH481538A CH481538A CH1544868A CH1544868A CH481538A CH 481538 A CH481538 A CH 481538A CH 1544868 A CH1544868 A CH 1544868A CH 1544868 A CH1544868 A CH 1544868A CH 481538 A CH481538 A CH 481538A
- Authority
- CH
- Switzerland
- Prior art keywords
- circuit arrangement
- current monitoring
- loop current
- loop
- monitoring
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT946667A AT287074B (de) | 1967-10-20 | 1967-10-20 | Schaltungsanordnung zur Feststellung des Bestehens von Schleifenzuständen in einer Fernsprechnebenstellenanlage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH481538A true CH481538A (de) | 1969-11-15 |
Family
ID=3614390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1544868A CH481538A (de) | 1967-10-20 | 1968-10-16 | Schaltungsanordnung zur Schleifenstromüberwachung |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT287074B (de) |
| CH (1) | CH481538A (de) |
| DE (1) | DE1803995A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007001413A1 (de) * | 2007-01-09 | 2008-07-10 | Siemens Ag | Vorrichtung |
-
1967
- 1967-10-20 AT AT946667A patent/AT287074B/de active
-
1968
- 1968-10-16 CH CH1544868A patent/CH481538A/de not_active IP Right Cessation
- 1968-10-19 DE DE19681803995 patent/DE1803995A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AT287074B (de) | 1971-01-11 |
| DE1803995A1 (de) | 1969-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK137556B (da) | Strømbegrænsende kredsløbsafbryder. | |
| CH482283A (de) | Stromunterbrechungsschalter | |
| FR1490908A (fr) | Circuit détecteur de sous-tension | |
| BR6803645D0 (pt) | Circuitos eletricos | |
| CH456725A (de) | Flüssigkeitsarmer Leistungsschalter | |
| AT286373B (de) | Schaltungsanordnung zur Überwachung von Taktgebern | |
| CH494478A (de) | Mikrowellenschaltung | |
| CH495560A (de) | Nullindikatorschaltung | |
| CH481538A (de) | Schaltungsanordnung zur Schleifenstromüberwachung | |
| AT292072B (de) | Schaltungsanordnung zur Begrenzung des Strahlstromes | |
| NL149614B (nl) | Elektrische koelinrichting. | |
| CH448224A (de) | Regelschaltung | |
| CH460139A (de) | Fehlerstromschutzgerät mit Prüfstromkreis | |
| AT275605B (de) | Elektrische Filterschaltung | |
| CH460875A (de) | Anordnung zur Rufstromsteuerung | |
| CH496365A (de) | Filterschaltung | |
| FR1536887A (fr) | Circuit anti-local | |
| CH487546A (de) | Filterschaltung | |
| AT278145B (de) | Leitungsschutzschalter | |
| AT288524B (de) | Fehlerstromschutzschalter mit Temperaturüberwachung | |
| BR6801786D0 (pt) | Circuito eletrico | |
| DE1802583B2 (de) | Multivibratorschaltkreis | |
| IL30771A0 (en) | Line current sensing circuit | |
| FR1528323A (fr) | Circuit de surveillance de courant | |
| CH469988A (de) | Schaltungsanordnung zur Spitzenwertmessung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |