JPS5571345A - Trunk control system - Google Patents

Trunk control system

Info

Publication number
JPS5571345A
JPS5571345A JP14494678A JP14494678A JPS5571345A JP S5571345 A JPS5571345 A JP S5571345A JP 14494678 A JP14494678 A JP 14494678A JP 14494678 A JP14494678 A JP 14494678A JP S5571345 A JPS5571345 A JP S5571345A
Authority
JP
Japan
Prior art keywords
information
trunk
units
circuit
parallel
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.)
Pending
Application number
JP14494678A
Other languages
Japanese (ja)
Inventor
Takaaki Osaki
Takeshi Sanbe
Asuhiko Kumashiro
Junji Asakura
Shige Miyoshi
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric Co Ltd
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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP14494678A priority Critical patent/JPS5571345A/en
Publication of JPS5571345A publication Critical patent/JPS5571345A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To reduce the number of cintrol lines to a control unit by multiplexing and transmitting infromation for switching control of the switching point in a trunk unit and information to assign a trunk unit from the control unit, which controls respective trunk units commonly, in time division. CONSTITUTION:Information for control of switching points of trunk units 20'- 20'm from a CPU and information to assign units 20'-20'm are applied to parallel- series converter circuit 31 of trunk control unit 10' through one control line in time division, and are applied from unit 10' to series-parallel converter circuits 41 of units 20'-20'm in the multiplex. Then, in units 20'-20'm, these information are converted to parallel information, and agreement or disagreement between trunk assignment information and the pulse of timing generation circuit 33 provided correspondingly to the mount position is detected by agreement and disagreement circuit 43; and if they agree with each other, trunk circuit 22 including a switching point is controlled. Information folded and transferred from units 20'-20'm is applied to series-parallel circuit 32 of unit 10' and is converted to parallel information and is aplied to agreement and disagreement circuit 34 and is collated with information from CPU1 and is transferred to CPU1.
JP14494678A 1978-11-25 1978-11-25 Trunk control system Pending JPS5571345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14494678A JPS5571345A (en) 1978-11-25 1978-11-25 Trunk control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14494678A JPS5571345A (en) 1978-11-25 1978-11-25 Trunk control system

Publications (1)

Publication Number Publication Date
JPS5571345A true JPS5571345A (en) 1980-05-29

Family

ID=15373856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14494678A Pending JPS5571345A (en) 1978-11-25 1978-11-25 Trunk control system

Country Status (1)

Country Link
JP (1) JPS5571345A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402305A (en) * 2003-04-10 2004-12-01 Nec Corp Multiplexing signals in a CDMA base station

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402305A (en) * 2003-04-10 2004-12-01 Nec Corp Multiplexing signals in a CDMA base station
GB2402305B (en) * 2003-04-10 2005-11-02 Nec Corp CDMA Base Station Apparatus
US7483445B2 (en) 2003-04-10 2009-01-27 Nec Corporation CDMA base station apparatus

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