JPS56165452A - Digital multiplex trunk test system - Google Patents

Digital multiplex trunk test system

Info

Publication number
JPS56165452A
JPS56165452A JP6975780A JP6975780A JPS56165452A JP S56165452 A JPS56165452 A JP S56165452A JP 6975780 A JP6975780 A JP 6975780A JP 6975780 A JP6975780 A JP 6975780A JP S56165452 A JPS56165452 A JP S56165452A
Authority
JP
Japan
Prior art keywords
test
tste
dti
call
channel
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
JP6975780A
Other languages
Japanese (ja)
Inventor
Takehiko Yamaguchi
Hiroshi Sato
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6975780A priority Critical patent/JPS56165452A/en
Publication of JPS56165452A publication Critical patent/JPS56165452A/en
Pending legal-status Critical Current

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
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems

Abstract

PURPOSE:To carry out a circuit test without causing damages to other circuits, by branching and inserting the call/control signal relating to a channel that is desingated optionally among the digital multiplex circuits and by giving a by-passing to other channels. CONSTITUTION:Both the time-division switch TDSW side and the transmission line side are led into the side of the DTI test device TSTE simultaneously via test relay contacts t1 and t2 between a device DTI which terminates the digital multiplex circuit to a time-division digital exchange and the multiple transmission line. Then only the call/control signal relating to the channel to be tested is branched and inserted by the device TSTE, and other channels are by-passed to be set to the original places. In case of an outgoing circuit test, the test board outgoing call is branched by the device TSTE to terminate at the DTI(TSTDTI) which is allotted for the test purpose. In case of an incoming circuit test, the test board outgoing call is transmitted from the TSTDTI and inserted into the test channel by the TSTE to terminate at the TSTTRK of own station.
JP6975780A 1980-05-26 1980-05-26 Digital multiplex trunk test system Pending JPS56165452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6975780A JPS56165452A (en) 1980-05-26 1980-05-26 Digital multiplex trunk test system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6975780A JPS56165452A (en) 1980-05-26 1980-05-26 Digital multiplex trunk test system

Publications (1)

Publication Number Publication Date
JPS56165452A true JPS56165452A (en) 1981-12-19

Family

ID=13411978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6975780A Pending JPS56165452A (en) 1980-05-26 1980-05-26 Digital multiplex trunk test system

Country Status (1)

Country Link
JP (1) JPS56165452A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58164362A (en) * 1982-03-24 1983-09-29 Fujitsu Ltd Automatic testing system of trunk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58164362A (en) * 1982-03-24 1983-09-29 Fujitsu Ltd Automatic testing system of trunk
JPH0224425B2 (en) * 1982-03-24 1990-05-29 Fujitsu Ltd

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