ES411818A1 - 4-wire telecommunication networks - Google Patents

4-wire telecommunication networks

Info

Publication number
ES411818A1
ES411818A1 ES411818A ES411818A ES411818A1 ES 411818 A1 ES411818 A1 ES 411818A1 ES 411818 A ES411818 A ES 411818A ES 411818 A ES411818 A ES 411818A ES 411818 A1 ES411818 A1 ES 411818A1
Authority
ES
Spain
Prior art keywords
test device
connection
wire connection
point
transmission
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
Application number
ES411818A
Other languages
Spanish (es)
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.)
Nokia Solutions and Networks Schweiz AG
Original Assignee
Standard Telephon and Radio AG
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 Standard Telephon and Radio AG filed Critical Standard Telephon and Radio AG
Publication of ES411818A1 publication Critical patent/ES411818A1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Dc Digital Transmission (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

A method of checking 4-wire connections between two switching points to be interconnected in a centrally controlled telecommunication network that has a route search from one end to the other, the connection being checked by means of control means and with respect to the correct transmission of digital signals, characterized in that through a switching point (v) between a test device (p) accessible to all switching points (s) and the calling switching point (s) ) a first 4-wire connection is established; because a first digital test signal, generated by this test device, is transmitted by the transmission channel of one direction of transmission of this 4-wire connection; because the test signal is linked to the transmission channel of the other direction of transmission at one of the switching points (S) or the change points (V) of this 4-wire connection and is transmitted backwards to the test device (P); because the first test signal that has been transmitted back and forth by the first 4-wire connection is compared at its point of origin with the first test signal produced by the test device (P), to get indications from it in relation, with the correction of the connection and with the correct transmission of the digital signals; because at least after a successful check of the first connection, which guarantees a correct connection to the call switching point (S), a second 4-wire connection is established from the same or another test device (p) to through a switch point (v) that is on the connection path that goes from the calling switch point to the called switching point (S) determined by an end-to-end route search and already on the first 4-wire connection wires and from there to the switching point called (S); because a second digital test signal generated by this test device (p) is transmitted by the transmission channel in a direction of the second 4-wire connection between the test device (P) and the switching point called (S) ; because the second test signal is linked to the transmission channel of the other direction of transmission at the switching point (s) or the change point (v) affected by this 4-wire connection and is transmitted backwards to the test device (P) and why the second test signal transmitted back and forth between the test device (p) and the switching point called by the second 4-wire connection is compared at its origin point with the second signal of test generated by the test device, to get the indications corresponding to the correction of the connection made and the correct transmission of the digital signals. (Machine-translation by Google Translate, not legally binding)
ES411818A 1972-02-29 1973-02-20 4-wire telecommunication networks Expired ES411818A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH285272A CH541265A (en) 1972-02-29 1972-02-29 Method for testing four-wire connections between two switching points of a telecommunications network that are to be connected to one another

Publications (1)

Publication Number Publication Date
ES411818A1 true ES411818A1 (en) 1976-01-01

Family

ID=4243022

Family Applications (1)

Application Number Title Priority Date Filing Date
ES411818A Expired ES411818A1 (en) 1972-02-29 1973-02-20 4-wire telecommunication networks

Country Status (14)

Country Link
JP (1) JPS5333203B2 (en)
AT (1) AT329641B (en)
BE (1) BE796107A (en)
CH (1) CH541265A (en)
DE (1) DE2304923C3 (en)
ES (1) ES411818A1 (en)
FR (1) FR2177758B1 (en)
GB (1) GB1401128A (en)
IE (1) IE37320B1 (en)
IL (1) IL41504A (en)
IT (1) IT984494B (en)
LU (1) LU67108A1 (en)
NL (1) NL156881B (en)
NO (1) NO136814C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2735341C3 (en) * 1977-08-05 1984-05-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Arrangement for the continuity test in telecommunication systems
DE2838816A1 (en) * 1978-09-06 1980-03-20 Tekade Felten & Guilleaume LOOP TEST FOR DATA TRANSFER ROUTES
DE2850376C2 (en) * 1978-11-21 1981-10-01 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Procedure for checking the connections of a telecommunications network
US5066139A (en) * 1989-08-28 1991-11-19 Raynet Corporation Coupler verification test circuit
US5901202A (en) * 1996-10-11 1999-05-04 At&T Corp Method for initiating a telephone call on a remote line

Also Published As

Publication number Publication date
LU67108A1 (en) 1973-05-03
FR2177758A1 (en) 1973-11-09
DE2304923C3 (en) 1974-09-26
AT329641B (en) 1976-05-25
IL41504A (en) 1975-08-31
BE796107A (en) 1973-06-18
NO136814B (en) 1977-08-01
DE2304923A1 (en) 1973-09-20
NL156881B (en) 1978-05-16
FR2177758B1 (en) 1981-07-24
CH541265A (en) 1973-08-31
IE37320B1 (en) 1977-06-22
IL41504A0 (en) 1973-04-30
JPS5333203B2 (en) 1978-09-13
GB1401128A (en) 1975-07-16
DE2304923B2 (en) 1974-03-07
ATA152673A (en) 1975-08-15
IE37320L (en) 1973-08-29
IT984494B (en) 1974-11-20
NO136814C (en) 1977-11-16
NL7302655A (en) 1973-08-31
JPS48102508A (en) 1973-12-22

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