JPS56117466A - Circuit selection/catch system for two-way circuit exchange network - Google Patents

Circuit selection/catch system for two-way circuit exchange network

Info

Publication number
JPS56117466A
JPS56117466A JP2111080A JP2111080A JPS56117466A JP S56117466 A JPS56117466 A JP S56117466A JP 2111080 A JP2111080 A JP 2111080A JP 2111080 A JP2111080 A JP 2111080A JP S56117466 A JPS56117466 A JP S56117466A
Authority
JP
Japan
Prior art keywords
circuits
circuit
selection
catch
performs
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
JP2111080A
Other languages
Japanese (ja)
Inventor
Yasushi Tokunaga
Takeshi Shiyakunaga
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2111080A priority Critical patent/JPS56117466A/en
Publication of JPS56117466A publication Critical patent/JPS56117466A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Abstract

PURPOSE:To reduce the probability of double catch, in the selection of circuits provided between the automatic telephone exchange devices one said device selects a circuit in the order of the idle state of catch and release and the other device selects a circuit in the mode contrary to the above order. CONSTITUTION:The two-way circuits C1-CN are connected at their both ends to the channel switch network NW of the automatic converters A and B each via the trunk circuit BWT. The controller CC of the devices A and B each performs the control for the circuits C1-CN plus the trunk circuit BWT, and at the same time detects the idle or busy mode for the circuits C1-CN to give a writing or reading into/out to the memory device M. The device A performs a selection/catch of the circuits by the controller CC, and from the device M in the order of the idle state of the circuits; while the device B performs the same procedure in the mode contrary to the above order.
JP2111080A 1980-02-22 1980-02-22 Circuit selection/catch system for two-way circuit exchange network Pending JPS56117466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2111080A JPS56117466A (en) 1980-02-22 1980-02-22 Circuit selection/catch system for two-way circuit exchange network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2111080A JPS56117466A (en) 1980-02-22 1980-02-22 Circuit selection/catch system for two-way circuit exchange network

Publications (1)

Publication Number Publication Date
JPS56117466A true JPS56117466A (en) 1981-09-14

Family

ID=12045735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2111080A Pending JPS56117466A (en) 1980-02-22 1980-02-22 Circuit selection/catch system for two-way circuit exchange network

Country Status (1)

Country Link
JP (1) JPS56117466A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6139757A (en) * 1984-07-31 1986-02-25 Toshiba Corp Connection system between subscriber telephone networks
US5046181A (en) * 1989-03-17 1991-09-03 Fujitsu Limited Switching system with two-way line managing system
JPH07162458A (en) * 1993-10-15 1995-06-23 Internatl Business Mach Corp <Ibm> Method for eliminating confliction of cascade switch and itsdevice
EP0881846A1 (en) * 1997-05-30 1998-12-02 Lucent Technologies Inc. System and method to minimize double hunting in interoffice trunk allocation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133711A (en) * 1976-05-04 1977-11-09 Hitachi Ltd Circuit two-way operation system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133711A (en) * 1976-05-04 1977-11-09 Hitachi Ltd Circuit two-way operation system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6139757A (en) * 1984-07-31 1986-02-25 Toshiba Corp Connection system between subscriber telephone networks
US5046181A (en) * 1989-03-17 1991-09-03 Fujitsu Limited Switching system with two-way line managing system
JPH07162458A (en) * 1993-10-15 1995-06-23 Internatl Business Mach Corp <Ibm> Method for eliminating confliction of cascade switch and itsdevice
EP0881846A1 (en) * 1997-05-30 1998-12-02 Lucent Technologies Inc. System and method to minimize double hunting in interoffice trunk allocation
US6137875A (en) * 1997-05-30 2000-10-24 Lucent Technologies Inc. System and method to minimize glare in interoffice trunk allocation

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