FR2358074A1 - Automatic subscriber line tester - having automatic switching central processor and control and measurement sub-circuits - Google Patents
Automatic subscriber line tester - having automatic switching central processor and control and measurement sub-circuitsInfo
- Publication number
- FR2358074A1 FR2358074A1 FR7621197A FR7621197A FR2358074A1 FR 2358074 A1 FR2358074 A1 FR 2358074A1 FR 7621197 A FR7621197 A FR 7621197A FR 7621197 A FR7621197 A FR 7621197A FR 2358074 A1 FR2358074 A1 FR 2358074A1
- Authority
- FR
- France
- Prior art keywords
- circuits
- automatic
- control
- subscriber line
- central processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Abstract
An automatic subscriber line testing device is for use in a telephone network. An automatic switching centre is connected to a divider stage to the individual subscriber posts while a processor is connected thereto in order to control it. The testing circuits are integral to the installation. This testing circuit has a collection of measurement and control sub circuits and a connection circuit having inputs from the auto-switches and the input divider stage. Communication circuits are connected to the connection circuit while the processor is connected to the measurement and control sub-circuits the control centre of the commutation circuits.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7621197A FR2358074A1 (en) | 1976-07-09 | 1976-07-09 | Automatic subscriber line tester - having automatic switching central processor and control and measurement sub-circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7621197A FR2358074A1 (en) | 1976-07-09 | 1976-07-09 | Automatic subscriber line tester - having automatic switching central processor and control and measurement sub-circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2358074A1 true FR2358074A1 (en) | 1978-02-03 |
Family
ID=9175554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7621197A Withdrawn FR2358074A1 (en) | 1976-07-09 | 1976-07-09 | Automatic subscriber line tester - having automatic switching central processor and control and measurement sub-circuits |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2358074A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0285320A1 (en) * | 1987-04-01 | 1988-10-05 | AT&T Corp. | Apparatus and method for determining the values of circuit elements in a three terminal equivalent circuit |
EP0563674A2 (en) * | 1992-03-31 | 1993-10-06 | Siemens Aktiengesellschaft | Test apparatus for testing line signals on an analogic subscriber connection line |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1762867A1 (en) * | 1968-09-12 | 1970-11-12 | Telefunken Patent | Circuit arrangement for checking the operability of the subscriber connection lines in telecommunications, in particular telephone systems |
DE2118220A1 (en) * | 1971-04-10 | 1972-10-26 | Deutsche Telephonwerke und Kabelin dustne AG, 1000 Berlin | Circuit arrangement for monitoring measuring range limits for remotely controllable testing and measuring devices in centrally controlled telecommunications, in particular telephone switching systems |
-
1976
- 1976-07-09 FR FR7621197A patent/FR2358074A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1762867A1 (en) * | 1968-09-12 | 1970-11-12 | Telefunken Patent | Circuit arrangement for checking the operability of the subscriber connection lines in telecommunications, in particular telephone systems |
DE2118220A1 (en) * | 1971-04-10 | 1972-10-26 | Deutsche Telephonwerke und Kabelin dustne AG, 1000 Berlin | Circuit arrangement for monitoring measuring range limits for remotely controllable testing and measuring devices in centrally controlled telecommunications, in particular telephone switching systems |
Non-Patent Citations (3)
Title |
---|
EXBK/72 * |
EXBK/73 * |
EXBK/75 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0285320A1 (en) * | 1987-04-01 | 1988-10-05 | AT&T Corp. | Apparatus and method for determining the values of circuit elements in a three terminal equivalent circuit |
EP0563674A2 (en) * | 1992-03-31 | 1993-10-06 | Siemens Aktiengesellschaft | Test apparatus for testing line signals on an analogic subscriber connection line |
EP0563674A3 (en) * | 1992-03-31 | 1993-11-18 | Siemens Ag | Test apparatus for testing line signals on an analogic subscriber connection line |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE81573T1 (en) | REPROGRAMMABLE CALL FORWARDING DEVICE. | |
ES446868A1 (en) | Apparatus for custom calling features in a telephone system | |
US4538029A (en) | Apparatus for use with key telephone system with wireless telephone device | |
US4943993A (en) | Cable pair tester | |
FR2358074A1 (en) | Automatic subscriber line tester - having automatic switching central processor and control and measurement sub-circuits | |
JPS5754492A (en) | Incoming call detour system in private branch of exchange | |
US4864597A (en) | Cable pair tester | |
GB1254258A (en) | A circuit arrangement including a relaxation oscillator for alternately providing ringing-tone and supervisory signals to subscriber stations | |
US3132211A (en) | Dial light for telephone substation set | |
FR2427751A1 (en) | ELECTRONIC TELEPHONE CIRCUIT FOR SUBSCRIBER LINE | |
JPS57212856A (en) | Terminal adaptor system | |
US4234762A (en) | Ring trip detector circuit | |
FR2369740A1 (en) | Current surge eliminating device - has circuit with several branches, one of which connects input to output and other circuits connect output to reference potential | |
FR2366756A1 (en) | Ringing signal generator for telephone networks - uses triacs instead of mechanical relays between subscriber and supply lines | |
JPS5684061A (en) | Test board | |
JPS56169463A (en) | Connecting system for standard telephone set in button telephone device | |
JPS57104354A (en) | Button telephone set | |
JPS57136850A (en) | Fault accepting and testing system | |
GB938166A (en) | Selection system for electric circuits or equipment | |
JPS56128053A (en) | Control unit of telephone set by sequential counter | |
JPS5513541A (en) | Channel unit | |
GB813339A (en) | Improvements in or relating to electrical signalling systems | |
FR2320014A1 (en) | Appts to test condition of electrical service line - has resistance element connected across line to present predetermined impedance | |
JPS5518122A (en) | Test system for subscriber circuit | |
JPS56131247A (en) | Remote maintenance system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |