ATA74774A - CIRCUIT ARRANGEMENT FOR CONNECTING TELEGRAPHY SUBSCRIBER POSITIONS TO AC TRANSMISSION DEVICES AND SWITCHING SYSTEMS - Google Patents
CIRCUIT ARRANGEMENT FOR CONNECTING TELEGRAPHY SUBSCRIBER POSITIONS TO AC TRANSMISSION DEVICES AND SWITCHING SYSTEMSInfo
- Publication number
- ATA74774A ATA74774A AT74774A AT74774A ATA74774A AT A74774 A ATA74774 A AT A74774A AT 74774 A AT74774 A AT 74774A AT 74774 A AT74774 A AT 74774A AT A74774 A ATA74774 A AT A74774A
- Authority
- AT
- Austria
- Prior art keywords
- telegraphy
- circuit arrangement
- transmission devices
- switching systems
- subscriber positions
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/12—Compensating for variations in line impedance
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2310940A DE2310940C3 (en) | 1973-03-05 | 1973-03-05 | Circuit arrangement for connecting telegraph subscribers to AC transmission equipment and switching systems |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA74774A true ATA74774A (en) | 1977-07-15 |
AT342120B AT342120B (en) | 1978-03-10 |
Family
ID=5873867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT74774A AT342120B (en) | 1973-03-05 | 1974-01-30 | CIRCUIT ARRANGEMENT FOR CONNECTING TELEGRAPHY SUBSCRIBER POSITIONS TO AC TRANSMISSION DEVICES AND SWITCHING SYSTEMS |
Country Status (12)
Country | Link |
---|---|
AT (1) | AT342120B (en) |
BE (1) | BE811886A (en) |
BR (1) | BR7401553D0 (en) |
CH (1) | CH586981A5 (en) |
DE (1) | DE2310940C3 (en) |
FI (1) | FI60330C (en) |
FR (1) | FR2220939B1 (en) |
GB (1) | GB1452158A (en) |
IT (1) | IT1011028B (en) |
LU (1) | LU69544A1 (en) |
NL (1) | NL7402912A (en) |
NO (1) | NO140318C (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7704703A (en) * | 1977-04-29 | 1978-10-31 | Philips Nv | ELECTRONIC DC TELEGRAPHY TRANSMITTER. |
DE2833732C2 (en) * | 1978-08-01 | 1981-12-03 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Circuit arrangement for the transmission of direct current telegraph characters |
NL181896C (en) * | 1979-06-05 | 1987-11-16 | Philips Nv | ELECTRONIC TRANSMITTER FOR DC TELEGRAPHITE TRANSMISSION. |
DE2925747C2 (en) * | 1979-06-26 | 1981-07-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Circuit arrangement for an electronic direct current telegraph transmitter |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2035379C3 (en) * | 1970-07-16 | 1975-10-09 | Siemens Ag | Circuit arrangement for setting the line current in telegraph subscriber connection circuits of a switching system |
FR2146091B1 (en) * | 1971-07-16 | 1976-05-28 | Constr Telephoniques | |
GB1424525A (en) * | 1972-05-11 | 1976-02-11 | Elliott Brothers London Ltd | Data transmission system |
-
1973
- 1973-03-05 DE DE2310940A patent/DE2310940C3/en not_active Expired
-
1974
- 1974-01-30 AT AT74774A patent/AT342120B/en not_active IP Right Cessation
- 1974-02-08 NO NO740433A patent/NO140318C/en unknown
- 1974-02-14 GB GB681374A patent/GB1452158A/en not_active Expired
- 1974-02-14 FI FI425/74A patent/FI60330C/en active
- 1974-02-15 CH CH214274A patent/CH586981A5/xx not_active IP Right Cessation
- 1974-03-04 BR BR1553/74A patent/BR7401553D0/en unknown
- 1974-03-04 LU LU69544A patent/LU69544A1/xx unknown
- 1974-03-04 NL NL7402912A patent/NL7402912A/xx not_active Application Discontinuation
- 1974-03-05 BE BE141654A patent/BE811886A/en unknown
- 1974-03-05 FR FR7407508A patent/FR2220939B1/fr not_active Expired
- 1974-03-05 IT IT49008/74A patent/IT1011028B/en active
Also Published As
Publication number | Publication date |
---|---|
IT1011028B (en) | 1977-01-20 |
LU69544A1 (en) | 1974-10-09 |
DE2310940B2 (en) | 1978-08-10 |
NO140318B (en) | 1979-04-30 |
BE811886A (en) | 1974-09-05 |
CH586981A5 (en) | 1977-04-15 |
FR2220939B1 (en) | 1977-09-23 |
FI60330C (en) | 1981-12-10 |
NO740433L (en) | 1974-09-06 |
DE2310940C3 (en) | 1979-05-03 |
BR7401553D0 (en) | 1974-11-19 |
FI60330B (en) | 1981-08-31 |
GB1452158A (en) | 1976-10-13 |
NL7402912A (en) | 1974-09-09 |
NO140318C (en) | 1979-08-08 |
DE2310940A1 (en) | 1974-09-19 |
AT342120B (en) | 1978-03-10 |
FR2220939A1 (en) | 1974-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AR201908A1 (en) | COMMUNICATIONS SWITCHING ARRANGEMENT | |
NO138074C (en) | PROTECTIVE DEVICE FOR APPLIANCE BOARDS FOR CONNECTING AND DISCONNECTING ELECTRICAL CIRCUIT SWITCHES | |
GB1439117A (en) | Electrical switching circuits | |
BE792984A (en) | COMMUNICATION AND SUPERVISION MAINTENANCE CIRCUIT | |
SE7505826L (en) | SWITCHING CIRCUIT | |
AT342120B (en) | CIRCUIT ARRANGEMENT FOR CONNECTING TELEGRAPHY SUBSCRIBER POSITIONS TO AC TRANSMISSION DEVICES AND SWITCHING SYSTEMS | |
AT336693B (en) | TELEPHONE SWITCHING SYSTEM | |
SE399485B (en) | SWITCHING CIRCUIT | |
BE779152A (en) | ELECTRICAL SWITCHING DEVICE, WITH THYRISTORS | |
IT1003855B (en) | REMOTE SIGNALING AND REMOTE SWITCHING DEVICE | |
GB1445271A (en) | Spirit level electrical switching devices | |
CH531284A (en) | Circuit arrangement for setting the line current in telegraph subscriber connection circuits of a switching system | |
AT343185B (en) | CIRCUIT ARRANGEMENT FOR CONNECTING THE SUBSCRIBER LINE OF A TELEPHONE SUBSCRIBER STATION TO A TELEPHONE SWITCHING SYSTEM | |
AT323244B (en) | TIME MULTIPLEX TELEPHONE SWITCHING SYSTEM | |
BE833001A (en) | SWITCHING CIRCUITS | |
SE402189B (en) | SWITCHING DEVICE FOR ELECTRICAL COUPLINGS | |
BR7400819D0 (en) | SWITCHING CIRCUIT | |
CH451250A (en) | Switching contact network for interconnecting a large number of subscriber stations and connecting lines | |
AT348602B (en) | CIRCUIT ARRANGEMENT FOR THE STEP-BY-STEP CONTROL OF ELECTRONIC ACTUATORS IN RADIO AND TELEVISION SETS | |
SU546117A1 (en) | Input telegraph device | |
DK137151B (en) | Electrical switching equipment. | |
AT282700B (en) | ARRANGEMENT FOR CYCLIC ASSIGNMENT OF CONNECTING DEVICES IN OPERATING SYSTEMS, IN PARTICULAR IN TELEPHONE SWITCHING SYSTEMS | |
AT330250B (en) | CIRCUIT ARRANGEMENTS FOR TELEPHONE SWITCHING SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH COUPLING PANELS AND LOOKING DEVICES | |
AT263864B (en) | Circuit arrangement for displaying the call number of subscriber lines in telephone switching systems | |
AT329118B (en) | CIRCUIT ARRANGEMENT TO PREVENT REPLACEMENT IN TELEPHONE SWITCHING DEVICES |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee | ||
REN | Ceased due to non-payment of the annual fee |