ES501135A0 - IMPROVEMENTS IN THE CIRCUIT ARRANGEMENTS FOR TELEPHONE EXCHANGE - Google Patents

IMPROVEMENTS IN THE CIRCUIT ARRANGEMENTS FOR TELEPHONE EXCHANGE

Info

Publication number
ES501135A0
ES501135A0 ES501135A ES501135A ES501135A0 ES 501135 A0 ES501135 A0 ES 501135A0 ES 501135 A ES501135 A ES 501135A ES 501135 A ES501135 A ES 501135A ES 501135 A0 ES501135 A0 ES 501135A0
Authority
ES
Spain
Prior art keywords
telephone exchange
circuit arrangements
arrangements
circuit
telephone
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.)
Granted
Application number
ES501135A
Other languages
Spanish (es)
Other versions
ES8203000A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Italtel SpA
Original Assignee
Italtel SpA
Italtel Societa Italiana Telecomunicazioni SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Italtel SpA, Italtel Societa Italiana Telecomunicazioni SpA filed Critical Italtel SpA
Publication of ES501135A0 publication Critical patent/ES501135A0/en
Publication of ES8203000A1 publication Critical patent/ES8203000A1/en
Expired legal-status Critical Current

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)
ES501135A 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 Expired ES8203000A1 (en)

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 true ES501135A0 (en) 1982-03-01
ES8203000A1 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)

* Cited by examiner, † Cited by third party
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
AU669538B2 (en) * 1992-06-30 1996-06-13 H. Heuer Instruments Pty Ltd Margin test apparatus for integrated services digital networks
WO1994000941A1 (en) * 1992-06-30 1994-01-06 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
AR227538A1 (en) 1982-11-15
FR2478925A1 (en) 1981-09-25
PT72668A (en) 1981-04-01
PT72668B (en) 1982-03-23
GR74163B (en) 1984-06-07
IT1209318B (en) 1989-07-16
SE8101786L (en) 1981-09-22
GB2073549A (en) 1981-10-14
IN152744B (en) 1984-03-24
BR8101577A (en) 1981-09-22
DE3111114A1 (en) 1982-01-28
ES8203000A1 (en) 1982-03-01
IT8020799A0 (en) 1980-03-21

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