ATA684274A - Schaltungsanordnung zur leitungsuberwachung in zentralgesteuerten fernsprechanlagen - Google Patents
Schaltungsanordnung zur leitungsuberwachung in zentralgesteuerten fernsprechanlagenInfo
- Publication number
- ATA684274A ATA684274A AT684274A AT684274A ATA684274A AT A684274 A ATA684274 A AT A684274A AT 684274 A AT684274 A AT 684274A AT 684274 A AT684274 A AT 684274A AT A684274 A ATA684274 A AT A684274A
- Authority
- AT
- Austria
- Prior art keywords
- circuit arrangement
- line monitoring
- telephone systems
- centrally controlled
- controlled telephone
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT684274A AT335521B (de) | 1974-08-22 | 1974-08-22 | Schaltungsanordnung zur leitungsuberwachung in zentralgesteuerten fernsprechanlagen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT684274A AT335521B (de) | 1974-08-22 | 1974-08-22 | Schaltungsanordnung zur leitungsuberwachung in zentralgesteuerten fernsprechanlagen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA684274A true ATA684274A (de) | 1976-03-15 |
| AT335521B AT335521B (de) | 1977-03-10 |
Family
ID=3590318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT684274A AT335521B (de) | 1974-08-22 | 1974-08-22 | Schaltungsanordnung zur leitungsuberwachung in zentralgesteuerten fernsprechanlagen |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT335521B (de) |
-
1974
- 1974-08-22 AT AT684274A patent/AT335521B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AT335521B (de) | 1977-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK234975A (da) | Elektronisk trafikovervagningssystem | |
| AT351409B (de) | Ueberwachungsanlage | |
| BR7501336A (pt) | Dispositivo seletivo de ligacao eletrica | |
| SE410374B (sv) | Radiotelefonianleggning | |
| BR7502285A (pt) | Sistem telefonico | |
| SE7512588L (sv) | Filterkrets | |
| SE415064B (sv) | Batteriladdningskrets | |
| NL7505456A (nl) | Elektrisch verbindingsblok. | |
| SE7504191L (sv) | Signaleringsanordning | |
| AT341589B (de) | Elektronisches fernsprechsystem mit zeitmultiplexvermittlung | |
| SE7514036L (sv) | Hogtalande telefonsystem | |
| AR201629A1 (es) | Perfeccionamientos en dispositivos de alarma | |
| NL7501953A (nl) | Elektroradiografisch stelsel. | |
| SE414215B (sv) | Elektroniskt tendsystem. | |
| SE7506165L (sv) | Drivsystem for elektronisk taxameter | |
| IL48202A (en) | Conductivity monitoring systems | |
| AT349067B (de) | Begrenzerschaltung | |
| ATA684274A (de) | Schaltungsanordnung zur leitungsuberwachung in zentralgesteuerten fernsprechanlagen | |
| NL7503157A (nl) | Digitale bewakings- en signaleringsinrichting. | |
| SE405181B (sv) | Anordning for anbringande av kontakter pa telefonreleer | |
| DK229576A (da) | Afluftbegrensende indretning i selvtrekssystemer | |
| ATA25474A (de) | Schaltungsanordnung | |
| AT334403B (de) | Membranfiltrationsanlage | |
| ATA68275A (de) | Uberspannungs-schutzschaltung | |
| SE409537B (sv) | Telefonapparatsystem |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |