JPS523320A - Trunk test system - Google Patents

Trunk test system

Info

Publication number
JPS523320A
JPS523320A JP7894675A JP7894675A JPS523320A JP S523320 A JPS523320 A JP S523320A JP 7894675 A JP7894675 A JP 7894675A JP 7894675 A JP7894675 A JP 7894675A JP S523320 A JPS523320 A JP S523320A
Authority
JP
Japan
Prior art keywords
test system
control circuit
trunk test
trunk
hook
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
JP7894675A
Other languages
Japanese (ja)
Inventor
Sadao Kashiuchi
Toshiro Aoki
Yoshito Kaneda
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
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone 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 Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7894675A priority Critical patent/JPS523320A/en
Publication of JPS523320A publication Critical patent/JPS523320A/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
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor

Abstract

PURPOSE:Regenerating on-hook and off-hook condition of an originator by using an electric key of LS control circuit even in testing of reception system trunk of TS time and combinating LS control circuit with TS control circuit.
JP7894675A 1975-06-24 1975-06-24 Trunk test system Pending JPS523320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7894675A JPS523320A (en) 1975-06-24 1975-06-24 Trunk test system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7894675A JPS523320A (en) 1975-06-24 1975-06-24 Trunk test system

Publications (1)

Publication Number Publication Date
JPS523320A true JPS523320A (en) 1977-01-11

Family

ID=13676043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7894675A Pending JPS523320A (en) 1975-06-24 1975-06-24 Trunk test system

Country Status (1)

Country Link
JP (1) JPS523320A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115600A (en) * 1973-03-07 1974-11-05
JPS49133098A (en) * 1973-04-24 1974-12-20
JPS50157000A (en) * 1974-06-07 1975-12-18
JPS5121900A (en) * 1974-08-15 1976-02-21 Sharp Kk KENHATSUKOSOCHI
JPS5216300A (en) * 1975-07-30 1977-02-07 Japanese National Railways<Jnr> Unit for printing & issuing commutation tickets, etc.
JPS5276100A (en) * 1975-12-20 1977-06-25 Toshiba Corp Commutation ticket issuing apparatus
JPS56153490A (en) * 1981-04-10 1981-11-27 Tokyo Shibaura Electric Co Ticket issuing machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115600A (en) * 1973-03-07 1974-11-05
JPS564949B2 (en) * 1973-03-07 1981-02-02
JPS49133098A (en) * 1973-04-24 1974-12-20
JPS5612909B2 (en) * 1973-04-24 1981-03-25
JPS50157000A (en) * 1974-06-07 1975-12-18
JPS5121900A (en) * 1974-08-15 1976-02-21 Sharp Kk KENHATSUKOSOCHI
JPS5811670B2 (en) * 1974-08-15 1983-03-04 シャープ株式会社 Kenhatsukousouchi
JPS5216300A (en) * 1975-07-30 1977-02-07 Japanese National Railways<Jnr> Unit for printing & issuing commutation tickets, etc.
JPS5276100A (en) * 1975-12-20 1977-06-25 Toshiba Corp Commutation ticket issuing apparatus
JPS56153490A (en) * 1981-04-10 1981-11-27 Tokyo Shibaura Electric Co Ticket issuing machine

Similar Documents

Publication Publication Date Title
JPS523320A (en) Trunk test system
JPS5218108A (en) Conference telephone circuit
JPS51147103A (en) Subscriber*s circuit with key dialling device energized via connection wire
AU509833B2 (en) Telephone Handset Holding Means
JPS5234601A (en) Calling circuit
JPS5213708A (en) Telephone set
JPS523319A (en) Crosstalk reduction system
JPS51115754A (en) Accommodation type automatic equalizer
JPS51138308A (en) Charging system
JPS51128208A (en) Idling power saving
JPS5219014A (en) Simple answering equipment to answer in receiving sequence
JPS51148316A (en) Ringing trunk
JPS51113404A (en) Public telephone
JPS5250107A (en) Automatic telephone reply recording unit
JPS53110411A (en) Connecting system for line tester
JPS5210004A (en) Switching circuit by voice signal
JPS51148305A (en) Telephone charge integrator for telephones
JPS51144504A (en) Telephone set
JPS51132909A (en) Call back method of an electronic switchboard
JPS51141507A (en) Speaker talking system
JPS5217703A (en) Public telephone
JPS5240003A (en) Hand-free telephone equipment
JPS53122304A (en) Key telephone set
JPS5394805A (en) Communication terminal equipment
JPS51117812A (en) Outgoing trunk testing method