+

WO1999045689A1 - Procede et interface de surveillance d'une connexion dans un reseau de telecommunications - Google Patents

Procede et interface de surveillance d'une connexion dans un reseau de telecommunications Download PDF

Info

Publication number
WO1999045689A1
WO1999045689A1 PCT/NO1999/000070 NO9900070W WO9945689A1 WO 1999045689 A1 WO1999045689 A1 WO 1999045689A1 NO 9900070 W NO9900070 W NO 9900070W WO 9945689 A1 WO9945689 A1 WO 9945689A1
Authority
WO
WIPO (PCT)
Prior art keywords
border
unit
signal
reflex
network
Prior art date
Application number
PCT/NO1999/000070
Other languages
English (en)
Inventor
Terje Hjertvikrem
Erik Lindahl
Original Assignee
Safetel As
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 Safetel As filed Critical Safetel As
Priority to AU27499/99A priority Critical patent/AU2749999A/en
Publication of WO1999045689A1 publication Critical patent/WO1999045689A1/fr

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

Definitions

  • the present invention relates to a method for defining and using an interface between the network owner side and the network user side in a telecommunications network, wherein the interface is a unit adapted to communicate with the network owner side, and register any change of state on the network user side. Further, the invention relates to an interface unit for use between the network owner side and the network user side in a telecommunications network, wherein the interface is adapted to communicate with the network owner side and register any change of state on the network user side.
  • the border between network owner and network user or customer is usually defined by a specific junction box or the like on a wall of the network user's premises.
  • a border is defined by clarify who is to bear the costs in the event of faults in the telecommunications network.
  • faults occur in the telecommunications network, they are, in the majority of cases, faults in the customer's telecommunications equipment or network.
  • the network owner In today's telecommunications networks, the network owner must dispatch a service engineer or repair technician to determine whether the fault is on the owner's network or the customer's private network or equipment. Fault localisation and repair are time- consuming and result in substantial operating expenses for the network owner. It would thus be a great advantage if the network owner were able pinpoint the location of the fault from the main exchange without having to dispatch anyone to locate the fault.
  • the object of the present invention is to overcome the problems associated with the prior art, and the method mentioned above is characterised, according to the invention, by
  • the border reflex unit relays to the telephone exchange in the form of a status signal information about any anomalies on the network user side selected from the group consisting of: breaks in the line, short circuits, voltage, capacitance, resistance and technical faults in the telecommunications equipment on the network user's premises.
  • At least two interface units with associated border reflex units may be used between the network owner side and the network user side in the telecommunications network.
  • the test signal transmitted from the telephone exchange may consist of a trigger signal and an identification signal related to a selected border reflex unit, the identification signal being designed to open the border reflex unit in order to retrieve and transmit information from the unit back to the telephone exchange.
  • the identification signal may, for instance, consist of at least two segments which each define a digit, letter, symbol or combination thereof.
  • the segments of the trigger signal and the identification signal may each have a duration of 100 ms, and be separated by a time interval of 200 ms.
  • the trigger signal is selected from the group consisting of: 4 kHz signal, 12 kHz signals, 16 kHz signals, FSK signals and overdecadic DTMF signals.
  • the segments of the identification signal each contain a DTMF tone signal.
  • the interface unit containing the border reflex unit is a part of a main distributor and/or a end distributor located on the network owner side, and /or at the last point on the network user's premises, and relays to the telephone exchange in the form of a status signal information about any anomalies on the network user side selected from the group consisting of: breaks in the line, short circuits, voltage, capacitance, resistance and technical faults.
  • the border reflex unit Prior to transmitting a status signal, the border reflex unit sends a border reflex unit- identifying signal.
  • the identification signal from the border reflex unit is identical to the identification signal transmitted from the telephone exchange to the same border reflex unit.
  • the aforementioned interface unit is characterised in that it contains a border reflex unit containing:
  • a line sensor for measuring the state of the line such as voltage, current, ohmic resistance, noise or the like
  • a signal transmitter for either sending back to the telephone exchange a response signal containing information which is characteristic for the status or condition of an intact telephone line as far as the border reflex unit, and any state of equipment therebeyond on the network user side, or not sending an echo signal if there is a fault on the line between the telephone exchange and the border reflex unit, or in the border reflex unit itself;
  • control unit for controlling the signal receiver, line sensor and signal transmitter.
  • the border reflex unit is adapted to be actuated by a border reflex unit-specific identification signal which is included in the test signal.
  • the border reflex unit response signal will contain the border reflex unit-specific identification signal and a status signal.
  • connection device for line electronics and/or test equipment.
  • the border reflex unit is also adapted to relay to the telephone exchange a status signal which is characteristic of any anomalies on the network user side selected from the group consisting of: breaks in the line, short circuits and technical faults in the telecommunications equipment on the network user's premises.
  • the border reflex unit may be a part of a main distributor and/or an end distributor in the telecommunications network and/or at the last point on the network user's premises.
  • Fig. 1 shows a prior art definition of a border in a telecommunications network
  • Fig. 2 shows the definition of a new interface according to the invention.
  • Fig. 3 shows, by way of example, the transmission of a signal sequence from the network owner exchange.
  • Fig. 4 depicts the reception of a signal sequence in an interface according to the invention.
  • Fig. 5 is a flow diagram of functions in the interface unit according to the invention.
  • Fig. 6 shows the transmission of a status signal from the interface unit according to the invention.
  • Fig. 7 shows a telecommunications network which includes the interface unit according to the invention and wherein several distributor units are included.
  • Fig. 8 shows a further improvement of the embodiment in Fig. 7 with an increased number of border reflex units in the telecommunications network.
  • Fig. 9 shows a detailed block diagram of an interface unit according to the present invention.
  • a telecommunications network will comprise a network owner exchange 1, a network user 2 and an interface 3 between the network owner exchange 1 and the network user 2.
  • the interface 3 defines the area of responsibility of the network owner and the network user respectively.
  • border reflex 4 is mounted in the junction box 3 which is defined as an interface between network owner 1 and network user 2.
  • the border reflex unit 4 can, for instance, be given the identity l C.
  • the network owner 1 When there is an indication that there is a fault somewhere on the line in a telecommunications network, the network owner 1 will, if the border reflex unit 4 has been mounted, transmit a signal sequence, e.g., consisting of a start pulse 5, a first digit or symbol 6 and a second digit or symbol 7.
  • the start pulse or trigger signal 5 to the border reflex unit 4 may, e.g., have a duration of 100 ms.
  • the signals 6 and 7, for example, may also be of a similar duration, i.e., 100 ms each.
  • the first and second digit or symbol are a DTMF signal.
  • the trigger signal 5 may, e.g., be a 4, 12 or 16 kHz signal, an FSK signal or an overdecadic DTMF signal.
  • the following two DTMF tone signals thus represent the identification number of the border reflex unit 4.
  • 1C has been chosen in the example in Fig. 2.
  • the signal receiver detects the start or trigger pulse and actuates the rest of the components in the border reflex unit, such as a control unit (CPU) 9, a level generator 10 and a signal transmitter 11.
  • the signal receiver 8 also registers the two DTMF tones "1" and "C" which come from the network owner exchange 1. As indicated in the flow chart in Fig. 5, the control unit 9 will cause certain operations to be carried out in the border reflex unit 4. The control unit 9 will check whether there is a start or trigger signal as indicated by function block 12. If there is such a trigger signal, the control unit 9 checks whether an identification signal has been received, as indicated by function block 13. If this has not happened, the control unit 9 will check whether a certain period of time has elapsed, e.g., one second, after the reception of the trigger signal, as indicated by function block 14. If no identification signal is received within the set time window, the operation of the border reflex unit will be terminated, as indicated by function block 15.
  • the function block 14 will re-actuate the function block 13 to test whether an identification signal has been received. If the identification signal has now been received, another function block will be actuated, indicated by the reference numeral 16.
  • the control unit 9 will test whether the identification number sent from the exchanges matches the identification number of the border reflex unit 4. If this identification number is not recognised, the operation in the border reflex unit 4 will be terminated, as indicted by the function block 15. However, if the identification code is recognised, the border reflex unit 4 will procure status from a level generator 10 which tests, for example, breaks in the line, short circuits, voltage, capacitance, resistance and any other technical faults in the telecommunications equipment or the telephone line on the network user side of the interface unit 3.
  • the border reflex unit 4 will actuate a signal transmitter 1 1 in the unit 4 in order to return the identification code (e.g., "1C") and a status signal, as is indicated by function block 17, the status signal being, e.g., another DTMF tone, indicated by the reference numeral 18 in Fig. 6.
  • the identification signals sent back to the network owner exchange 1 are for the sake of simplicity indicated by the references 6' and 7'. Between the returned signals there may be a pause, e.g., of 100 ms duration, although this should in no way be perceived as defining the limits of the invention.
  • the identification signals 6', 7', and the status signal 18 may basically be of any desirable duration, e.g., 100 ms.
  • the status signal 18 may be a number or a symbol which on the basis of a predetermined table provides information about, e.g., line voltage. For instance, the status signal "1" may indicate that the line voltage is OK, whilst status number “2" may indicate that there is no line voltage, and “3" may indicate there is only partial line voltage. 7
  • the network owner exchange 1 will receive the identification signal and the status signal and will give the network operator the opportunity to establish status on the telephone line as far as the border reflex unit 4.
  • the border reflex unit 4 will transmit a response to the network owner exchange 1 indicating line status.
  • the border reflex unit 4 will be capable of distinguishing between faults on the network user's side and those on the network owner's side of the interface 3.
  • the border reflex unit 4 will in fact function as a border reflex.
  • this unit is so constructed that it will not damage the connection between the network owner 1 and the network user 2. On actuation of the border reflex 4 there will still be voltage feed to the network user 2.
  • the line between the network owner exchange 1 and the network user 2 may pass via a number of distributors before the line ends in the interface 3 and ultimately with the network user 2.
  • a main distributor (HF) 19 and an end distributor (EF) 20 are indicated.
  • respective border reflex units may be mounted in the main distributor 19 and the end distributor 20, and additionally a border reflex unit (GR) may also be mounted at the network user's.
  • the respective border reflex units in the main distributor 19, the end distributor 20, the interface 3 and on the premises of the network user 2 may be indicated by the reference numerals 21, 22, 4 and 23, respectively.
  • the 8 different border reflex units 21, 22, 4 and 23 will each be given their respective identity number, e.g., 1 A, 2A, 1C and IB, for the border reflex units 21, 22, 4 and 23 respectively.
  • the network owner exchange 1 transmits enquiry signals to the respective border reflex units, these units will report back giving their identity number and status for that part of the telephone line they are capable of measuring. If the network owner finds that the fault is on the network owner's side of the interface 3, the network owner can easily reduce the fault search area considerably by transmitting different signal sequences on the line.
  • FIG. 9 A somewhat more detailed circuit diagram than the block diagram in Fig. 4 is shown in Fig. 9.
  • the level generator 10 may have a component 10' for measuring, e.g., line voltage, and a component 10" for measuring line current.
  • the border reflex unit may receive its power supply 24 from the telecommunications network as indicated by the reference numeral 24 or from a separate power supply 25 which may serve as a reserve power supply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

La présente invention concerne un procédé permettant, dans un réseau de télécommunications, de définir et d'utiliser une interface entre le côté propriétaire du réseau et le côté utilisateur du réseau. En l'occurrence, on a adapté une unité d'interface pour d'une part communiquer avec la côté propriétaire du réseau et d'autre part enregistrer tout changement d'état affectant le côté utilisateur du réseau. Le procédé consiste d'abord à prendre un signal de test défini d'un central téléphonique et à l'envoyer aussi bien du côté propriétaire du réseau que du côté utilisateur du réseau. Le procédé consiste ensuite à renvoyer au central téléphonique depuis l'unité réflexe frontière un signal de réponse caractéristique, d'une part de l'état intact d'une ligne téléphonique (jusqu'à l'unité réflexe frontière), et d'autre part de tout état des équipements au-delà sur le réseau. Autrement, s'il y a un défaut sur la ligne entre le central téléphonique et l'unité réflexe frontière ou au niveau de l'unité réflexe frontière proprement dite, le procédé consiste à ne pas renvoyer de signal de réponse. Le procédé consiste enfin à constituer au niveau du central téléphonique un aperçu de l'état de la ligne téléphonique jusqu'à l'unité réflexe frontière caractéristique de la réception ou de la non-réception du signal de réponse.
PCT/NO1999/000070 1998-03-02 1999-03-02 Procede et interface de surveillance d'une connexion dans un reseau de telecommunications WO1999045689A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27499/99A AU2749999A (en) 1998-03-02 1999-03-02 A method and an interface for monitoring a connection in a telecommunications network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO19980901 1998-03-02
NO980901A NO980901L (no) 1998-03-02 1998-03-02 FremgangsmÕte for definering av grensesnitt mellom netteiersiden og nettbrukersiden i et telenett samt grensesnitt for utförelse av fremgangsmÕten

Publications (1)

Publication Number Publication Date
WO1999045689A1 true WO1999045689A1 (fr) 1999-09-10

Family

ID=19901744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1999/000070 WO1999045689A1 (fr) 1998-03-02 1999-03-02 Procede et interface de surveillance d'une connexion dans un reseau de telecommunications

Country Status (3)

Country Link
AU (1) AU2749999A (fr)
NO (1) NO980901L (fr)
WO (1) WO1999045689A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513176A (en) * 1983-02-28 1985-04-23 Fostveit Edgar H Test apparatus for telephone equipment
US4937851A (en) * 1988-07-20 1990-06-26 Keptel, Inc. Loop status verification system
US5422929A (en) * 1991-11-13 1995-06-06 Txport, Inc. Telephone line repeater and method of testing same
US5444776A (en) * 1993-11-12 1995-08-22 Teltrend Inc. Bridge for a network interface unit
WO1996027973A1 (fr) * 1995-03-03 1996-09-12 Pyronix Limited Systeme de controle de l'integrite de lignes telephoniques
US5648966A (en) * 1994-09-21 1997-07-15 Nec Corporation Method of sending an alarm to a network management station when an unusual event occurs in a managed network station

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513176A (en) * 1983-02-28 1985-04-23 Fostveit Edgar H Test apparatus for telephone equipment
US4937851A (en) * 1988-07-20 1990-06-26 Keptel, Inc. Loop status verification system
US5422929A (en) * 1991-11-13 1995-06-06 Txport, Inc. Telephone line repeater and method of testing same
US5444776A (en) * 1993-11-12 1995-08-22 Teltrend Inc. Bridge for a network interface unit
US5648966A (en) * 1994-09-21 1997-07-15 Nec Corporation Method of sending an alarm to a network management station when an unusual event occurs in a managed network station
WO1996027973A1 (fr) * 1995-03-03 1996-09-12 Pyronix Limited Systeme de controle de l'integrite de lignes telephoniques

Also Published As

Publication number Publication date
NO980901L (no) 1999-09-03
NO980901D0 (no) 1998-03-02
AU2749999A (en) 1999-09-20

Similar Documents

Publication Publication Date Title
US3636280A (en) Telephone line testing from remote locations
FI94806B (fi) Telelinkkijärjestelmä tarkkailua ja raportointia varten
US5224149A (en) Testing system for digital transmission lines
US4424421A (en) Apparatus for testing subscriber carrier systems
JPH04227158A (ja) 電話回線の自動試験方法および装置
US4064459A (en) Method of automatically testing the serviceability of a data transmission system
US4937850A (en) Programmable automatic call-thru set
US4187415A (en) Remote locating system for transmission faults in data transmission line having regenerative repeaters
US4455644A (en) Telecommunication fault detecting system
US4041255A (en) Switching circuit for telecommunications lines
US4910760A (en) Network verification evaluation testing system
US3848241A (en) Test and integrity equipment for a mcculloh system
JPH0622033A (ja) 加入者線多重伝送システムの集中監視方式
US6078646A (en) Caller ID activated test device for testing a telephone subscriber loop/access line
US5115462A (en) Remotely controlled apparatus for conditioning telephone line exclusive of metallic DC bypass pair
US4187414A (en) Circuit arrangement for an interference data alarm system in communication facilities, particularly in telephone equipment
WO1999045689A1 (fr) Procede et interface de surveillance d'une connexion dans un reseau de telecommunications
US5852649A (en) Alarm notification system and method for a telephone switch
US6847608B1 (en) Path management and test method for switching system
US5960060A (en) Line tester for coin-operated telephones
US2919435A (en) Selecting, routing and receiving system and apparatus
EP0575175B1 (fr) Système de détection
KR920002955B1 (ko) 애널로그 가입자 설비 시험 방법
US1923662A (en) Telephone system
JPS61201595A (ja) 伝送装置における監視情報の収集方法及び装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载