ES475186A1 - Time division multiplex telephone exchange - Google Patents

Time division multiplex telephone exchange

Info

Publication number
ES475186A1
ES475186A1 ES475186A ES475186A ES475186A1 ES 475186 A1 ES475186 A1 ES 475186A1 ES 475186 A ES475186 A ES 475186A ES 475186 A ES475186 A ES 475186A ES 475186 A1 ES475186 A1 ES 475186A1
Authority
ES
Spain
Prior art keywords
shift
time
input
output
telephone exchange
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
ES475186A
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 Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES475186A1 publication Critical patent/ES475186A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H04Q1/22—Automatic arrangements
    • H04Q1/24—Automatic arrangements for connection devices
    • H04Q1/245—Automatic arrangements for connection devices in time-division multiplex systems
    • 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)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

In a TDM telephone exchange, it is necessary when setting up calls to take account of the time taken for a PCM code combination to negotiate the exchange's switching network. A path supervision device, addresses the input and output ends of that connection, and stores input and output PCM combinations. Each input combination is compared successively with all output combinations, and from the times at which identity is detected, the shift in time caused by the passage through the network is determined. Any variation in this shift causes: (a) an evaluation of the new shift, and (b) the recording of data representing the new shift plus the time at which the change occurred. Supervision of one connection ceases either when an allotted time has elapsed, or after a preset number of unsuccessful identity tests. The recorded data are analysed and a statistical reading is sent to the central control.
ES475186A 1977-11-18 1978-11-17 Time division multiplex telephone exchange Expired ES475186A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7734742A FR2409651A1 (en) 1977-11-18 1977-11-18 PATH MONITORING DEVICE ASSOCIATED WITH A TIME SWITCHING CONNECTION NETWORK OF CODED SIGNALS

Publications (1)

Publication Number Publication Date
ES475186A1 true ES475186A1 (en) 1979-04-01

Family

ID=9197785

Family Applications (1)

Application Number Title Priority Date Filing Date
ES475186A Expired ES475186A1 (en) 1977-11-18 1978-11-17 Time division multiplex telephone exchange

Country Status (12)

Country Link
AR (1) AR220157A1 (en)
AU (1) AU4151978A (en)
BE (1) BE872076R (en)
BR (1) BR7807571A (en)
DE (1) DE2849744C2 (en)
DK (1) DK511278A (en)
ES (1) ES475186A1 (en)
FI (1) FI783494A (en)
FR (1) FR2409651A1 (en)
GB (1) GB2008896B (en)
NL (1) NL7811313A (en)
NO (1) NO783854L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442563A1 (en) * 1978-11-22 1980-06-20 Materiel Telephonique CONTROL DEVICE FOR TIME SWITCHING NETWORK
FR2464602A1 (en) * 1979-08-30 1981-03-06 Thomson Csf Mat Tel Teleprinter connection device using junction made by route signaller - with two groups of four bits of standard to support certified information
FR2467523A1 (en) * 1979-10-12 1981-04-17 Thomson Csf SYSTEM FOR CONTROLLING A CONNECTION NETWORK
IT8003532A0 (en) * 1980-10-07 1980-10-07 Italtel Spa DEVICE FOR CONTROL OF THE SPACE-TEMPORAL CONTINUITY OF THE DYNAMIC CONNECTIONS OF A TRANSIT NETWORK FOR TIME DIVISION TELECOMMUNICATIONS SYSTEMS
EP0512457A1 (en) * 1991-05-08 1992-11-11 Siemens Aktiengesellschaft Method and arrangement for monitoring of switching paths in a switching network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1450457A (en) * 1974-01-02 1976-09-22 Plessey Co Ltd Telecommunication exchange systems
FR2305907A1 (en) * 1975-03-27 1976-10-22 Materiel Telephonique Time-multiplexed switching network controller - uses memory unit to store current routing status and has several communications channels
DE2543408C3 (en) * 1975-09-29 1978-11-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Procedure for monitoring PCM connections
FR2399162A1 (en) * 1977-07-29 1979-02-23 Telecommunications Sa Faults detection device in multiplexed data transmission network - utilises test unit to determine functional condition of channel

Also Published As

Publication number Publication date
FR2409651B1 (en) 1984-06-29
DK511278A (en) 1979-05-19
DE2849744C2 (en) 1986-07-24
GB2008896B (en) 1982-02-17
NO783854L (en) 1979-05-21
AR220157A1 (en) 1980-10-15
DE2849744A1 (en) 1979-05-23
GB2008896A (en) 1979-06-06
NL7811313A (en) 1979-05-22
FR2409651A1 (en) 1979-06-15
BE872076R (en) 1979-05-17
BR7807571A (en) 1979-06-26
FI783494A (en) 1979-05-19
AU4151978A (en) 1979-05-24

Similar Documents

Publication Publication Date Title
US3524946A (en) Multiregister for time division telephone switching systems
ES475186A1 (en) Time division multiplex telephone exchange
GB1521209A (en) Conference circuit for a pcm switching network
ES388140A1 (en) Multi-stage time connection network
US3347992A (en) Circuit arrangement controlling the release of lines in a communication system
ES8501591A1 (en) Closed loop telecommunication system.
FR2478415B1 (en) SIGNALING SWITCHING SYSTEM IN A TIME SWITCHING NETWORK, AND TIME SWITCHING NETWORK COMPRISING SUCH A SYSTEM
US3808373A (en) Pulse detector
ES458318A1 (en) Space stage in a PCM-exchange
ES8203545A1 (en) Digital debouncing and storage apparatus for use in a telephone switching system
JPS57103467A (en) Public terminal communication system
US2832831A (en) Toll board time signal circuit
JPS56165483A (en) Initial setting system of exchange terminal device
SU902015A1 (en) Device for priority signal determination
JPS5741732A (en) Testing system of data totalizing system
JPS57109452A (en) State reporting device
SU500556A1 (en) Device for automatically measuring telephone message parameters
JPS5744353A (en) Information collection system
NO812897L (en) REMOVAL DEVICE WITH THE RELEASE OF RECEIVED NOTIFICATIONS AND STATE NOTIFICATIONS DEPENDING ON STATE OPERATING CONDITIONS
SU1080146A1 (en) Device for simulating queueing systems
SU1095443A1 (en) Device for checking duration of engaged condition of taking path device
JPS574684A (en) Dial information storing circuit of originating register
SU720790A1 (en) Device for remote testing of taxophones
JPS53105923A (en) Automatic test system for ringer
JPS5375803A (en) Individual selective calling transmission device which makes time information possible