PT72668B - CIRCUIT FOR DETECTING THE ELECTRICAL CHARACTERISTICS OF ANALOG OR DIGITAL JUNCTIONS ASSOCIATED WITH A TELEPHONE SWITCHING STATION OF DIGITAL TYPE TRANSIT - Google Patents

CIRCUIT FOR DETECTING THE ELECTRICAL CHARACTERISTICS OF ANALOG OR DIGITAL JUNCTIONS ASSOCIATED WITH A TELEPHONE SWITCHING STATION OF DIGITAL TYPE TRANSIT

Info

Publication number
PT72668B
PT72668B PT72668A PT7266881A PT72668B PT 72668 B PT72668 B PT 72668B PT 72668 A PT72668 A PT 72668A PT 7266881 A PT7266881 A PT 7266881A PT 72668 B PT72668 B PT 72668B
Authority
PT
Portugal
Prior art keywords
digital
analog
detecting
circuit
electrical characteristics
Prior art date
Application number
PT72668A
Other languages
French (fr)
Portuguese (pt)
Other versions
PT72668A (en
Original Assignee
Italtel 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 filed Critical Italtel Spa
Publication of PT72668A publication Critical patent/PT72668A/en
Publication of PT72668B publication Critical patent/PT72668B/en

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)
PT72668A 1980-03-21 1981-03-16 CIRCUIT FOR DETECTING THE ELECTRICAL CHARACTERISTICS OF ANALOG OR DIGITAL JUNCTIONS ASSOCIATED WITH A TELEPHONE SWITCHING STATION OF DIGITAL TYPE TRANSIT PT72668B (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
PT72668A PT72668A (en) 1981-04-01
PT72668B true PT72668B (en) 1982-03-23

Family

ID=11172230

Family Applications (1)

Application Number Title Priority Date Filing Date
PT72668A PT72668B (en) 1980-03-21 1981-03-16 CIRCUIT FOR DETECTING THE ELECTRICAL CHARACTERISTICS OF ANALOG OR DIGITAL JUNCTIONS ASSOCIATED WITH A TELEPHONE SWITCHING STATION OF DIGITAL TYPE TRANSIT

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
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)

* 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
SE8101786L (en) 1981-09-22
FR2478925A1 (en) 1981-09-25
ES501135A0 (en) 1982-03-01
ES8203000A1 (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

Similar Documents

Publication Publication Date Title
IT8248576A0 (en) AUTOMATIC SWITCH FOR ELECTRICAL CIRCUITS
BE854926A (en) TELEPHONE SWITCHING NETWORK
BE891617A (en) ELECTRICAL CONNECTOR FOR INSULATED CONDUCTOR
FR2524667B1 (en) LEVEL LIMIT SWITCH FOR CONDUCTIVE FILLING FOODS
JPS5313307A (en) Interline coding system for facsimile signals
RO84855A (en) DIGITAL TELEPHONE LINE CIRCUIT
FR2574237B1 (en) SWITCHING SYSTEM FOR A DIGITAL TRANSMISSION NETWORK
JPS57125574A (en) Facsimile terminal device
BE846582A (en) SWITCHING DEVICE FOR ELECTRICAL APPLIANCES FOR REMOTE CONTROL
FR2341894A1 (en) SWITCHING TYPE REGULATOR FOR TELEVISION RECEIVER
GB2084813B (en) Connection terminal for electrical conductors
PT72668B (en) CIRCUIT FOR DETECTING THE ELECTRICAL CHARACTERISTICS OF ANALOG OR DIGITAL JUNCTIONS ASSOCIATED WITH A TELEPHONE SWITCHING STATION OF DIGITAL TYPE TRANSIT
DE3164041D1 (en) Telephone circuit for off-hook detection during ringing
FR2501919B1 (en) ELECTRICAL CONNECTOR FOR HOSTILE ENVIRONMENTS
FR2494030B1 (en) ELECTRICAL SWITCHING DEVICES
FR2474760B1 (en) LOCKING DEVICE FOR CIRCUIT BREAKER SWITCHING MECHANISM
FR2344979A1 (en) INSULATION BOX FOR CONTACT TERMINAL
PT72611B (en) DEVICE FOR ELECTRIC DIGITAL COMUTATION
GB2087651B (en) Electrical switching devices
GB8517920D0 (en) Explosion-proof electrical switching device
FR2513813B1 (en) CONTACTS ON ALKALINE ELECTRIC BATTERIES
FR2499760B1 (en) MATERIAL FOR MAKING ELECTRICAL CONTACTS
FR2601196B1 (en) CONNECTOR FOR MULTICOAXIAL CABLES WITH INSULATING CONTACT
FR2351532A1 (en) SWITCHING DEVICE FOR CONTROL OF AT LEAST ONE ELECTRICAL RECEIVER
FR2525024B1 (en) LOCKING DEVICE FOR ELECTRICAL SWITCHING DEVICES