ES8203000A1 - Improvements in or relating to circuit arrangements for testing electrical characteristics of both analog and digital trunk lines connected to transit telephone exchanges of digital type - Google Patents
Improvements in or relating to circuit arrangements for testing electrical characteristics of both analog and digital trunk lines connected to transit telephone exchanges of digital typeInfo
- Publication number
- ES8203000A1 ES8203000A1 ES501135A ES501135A ES8203000A1 ES 8203000 A1 ES8203000 A1 ES 8203000A1 ES 501135 A ES501135 A ES 501135A ES 501135 A ES501135 A ES 501135A ES 8203000 A1 ES8203000 A1 ES 8203000A1
- Authority
- ES
- Spain
- Prior art keywords
- digital
- analog
- electrical characteristics
- lines connected
- relating
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
- H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
A circuit arrangement is provided for testing electrical characteristics of both analog and digital trunk lines connected to a transit telephone exchange of digital type comprising a central control unit CC for controlling switching of codes in a connection network RC. The circuit arrangement includes an interface unit UIR for the connection network, an analog trunk line testing unit UPA, a digital trunk line testing unit UPD, a stored program microprocessor MIP operating in time division multiplex, or an interface UIC for the central control unit.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8020799A IT1209318B (en) | 1980-03-21 | 1980-03-21 | CIRCUIT PROVISION SUITABLE TO DETECT THE ELECTRICAL CHARACTERISTICS OF THE JUNCTION LINES, BOTH ANALOG AND DIGITAL, ATTESTED TO A NUMERIC TYPE TRANSIT TELEPHONE UNIT. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES501135A0 ES501135A0 (en) | 1982-03-01 |
ES8203000A1 true ES8203000A1 (en) | 1982-03-01 |
Family
ID=11172230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES501135A Expired ES8203000A1 (en) | 1980-03-21 | 1981-03-21 | Improvements in or relating to circuit arrangements for testing electrical characteristics of both analog and digital trunk lines connected to transit telephone exchanges of digital type |
Country Status (11)
Country | Link |
---|---|
AR (1) | AR227538A1 (en) |
BR (1) | BR8101577A (en) |
DE (1) | DE3111114A1 (en) |
ES (1) | ES8203000A1 (en) |
FR (1) | FR2478925A1 (en) |
GB (1) | GB2073549A (en) |
GR (1) | GR74163B (en) |
IN (1) | IN152744B (en) |
IT (1) | IT1209318B (en) |
PT (1) | PT72668B (en) |
SE (1) | SE8101786L (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5128619A (en) * | 1989-04-03 | 1992-07-07 | Bjork Roger A | System and method of determining cable characteristics |
JPH07508863A (en) * | 1992-06-30 | 1995-09-28 | エイチ ヒューア インスツルメント ピーティーワイ リミテッド | Margin test equipment for integrated service digital networks |
AU669538B2 (en) * | 1992-06-30 | 1996-06-13 | H. Heuer Instruments Pty Ltd | Margin test apparatus for integrated services digital networks |
DE19957019C5 (en) * | 1999-11-26 | 2009-04-02 | Liba Maschinenfabrik Gmbh | Method for producing a warp knitted fabric with large grid openings |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2290804A1 (en) * | 1974-11-06 | 1976-06-04 | Labo Cent Telecommunicat | DEVICE FOR VERIFYING THE CONTINUITY OF THE DIGITAL AND ANALOGUE SPEAKING PATH BETWEEN DIGITAL AND VOICE FREQUENCY SWITCHING CENTERS |
DE2828092C2 (en) * | 1978-06-27 | 1986-12-04 | Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Method and circuit arrangement for monitoring a license plate converter during operation |
DE2839172B2 (en) * | 1978-09-08 | 1980-12-18 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Method for remote management of data memories and for remote maintenance in a centrally controlled telephone exchange system, in particular in centrally controlled telephone branch exchange systems with connection traffic |
-
1980
- 1980-03-21 IT IT8020799A patent/IT1209318B/en active
-
1981
- 1981-03-03 IN IN232/CAL/81A patent/IN152744B/en unknown
- 1981-03-06 AR AR284548A patent/AR227538A1/en active
- 1981-03-10 GR GR64357A patent/GR74163B/el unknown
- 1981-03-16 PT PT72668A patent/PT72668B/en unknown
- 1981-03-18 BR BR8101577A patent/BR8101577A/en unknown
- 1981-03-18 FR FR8105393A patent/FR2478925A1/en active Pending
- 1981-03-20 SE SE8101786A patent/SE8101786L/en not_active Application Discontinuation
- 1981-03-20 DE DE19813111114 patent/DE3111114A1/en not_active Withdrawn
- 1981-03-21 ES ES501135A patent/ES8203000A1/en not_active Expired
- 1981-03-23 GB GB8109017A patent/GB2073549A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
SE8101786L (en) | 1981-09-22 |
PT72668B (en) | 1982-03-23 |
FR2478925A1 (en) | 1981-09-25 |
ES501135A0 (en) | 1982-03-01 |
GB2073549A (en) | 1981-10-14 |
GR74163B (en) | 1984-06-07 |
DE3111114A1 (en) | 1982-01-28 |
IT1209318B (en) | 1989-07-16 |
AR227538A1 (en) | 1982-11-15 |
IN152744B (en) | 1984-03-24 |
IT8020799A0 (en) | 1980-03-21 |
PT72668A (en) | 1981-04-01 |
BR8101577A (en) | 1981-09-22 |
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