JPS5553957A - Fcg test system for local tandem switch - Google Patents

Fcg test system for local tandem switch

Info

Publication number
JPS5553957A
JPS5553957A JP12739678A JP12739678A JPS5553957A JP S5553957 A JPS5553957 A JP S5553957A JP 12739678 A JP12739678 A JP 12739678A JP 12739678 A JP12739678 A JP 12739678A JP S5553957 A JPS5553957 A JP S5553957A
Authority
JP
Japan
Prior art keywords
beta
jssw
alpha
psw
bus
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
JP12739678A
Other languages
Japanese (ja)
Inventor
Yoichi Ogawa
Shigeru Mugitani
Toru Furuhashi
Ikuo Kawatani
Saburo Inoue
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 JP12739678A priority Critical patent/JPS5553957A/en
Publication of JPS5553957A publication Critical patent/JPS5553957A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To realize the false cross and ground test for the network exclusive for the local tandem by putting the false cross and ground test circuit into the connection bus between the incoming and outgoing trunks. CONSTITUTION:When a call is given to incoming trunk ICT from other station, outgoing trunk OGT of the desired line is selected with closure of 1st-4th switches PSW(alpha)-JSSW(alpha) plus PSW(beta)-JSSW(beta) in order to form the bus. After this, 1st switches PSW(alpha) and PSW(beta) are opened, and then 1st-3rd switches PSW (alpha)-JPSW(beta) are closed to the rest 4th swtich JSSW(beta). And the interruption control is given with 4th switch JSSW(beta). In this way, false cross and ground test circuit FCGT can be put into the bus.
JP12739678A 1978-10-18 1978-10-18 Fcg test system for local tandem switch Pending JPS5553957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12739678A JPS5553957A (en) 1978-10-18 1978-10-18 Fcg test system for local tandem switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12739678A JPS5553957A (en) 1978-10-18 1978-10-18 Fcg test system for local tandem switch

Publications (1)

Publication Number Publication Date
JPS5553957A true JPS5553957A (en) 1980-04-19

Family

ID=14958950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12739678A Pending JPS5553957A (en) 1978-10-18 1978-10-18 Fcg test system for local tandem switch

Country Status (1)

Country Link
JP (1) JPS5553957A (en)

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