JPS6131678B2 - - Google Patents

Info

Publication number
JPS6131678B2
JPS6131678B2 JP2307178A JP2307178A JPS6131678B2 JP S6131678 B2 JPS6131678 B2 JP S6131678B2 JP 2307178 A JP2307178 A JP 2307178A JP 2307178 A JP2307178 A JP 2307178A JP S6131678 B2 JPS6131678 B2 JP S6131678B2
Authority
JP
Japan
Prior art keywords
signal
output
detection circuit
telephone
line
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.)
Expired
Application number
JP2307178A
Other languages
English (en)
Japanese (ja)
Other versions
JPS54115007A (en
Inventor
Takuto Kojima
Tooru Masuda
Takashi Yokoto
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP2307178A priority Critical patent/JPS54115007A/ja
Publication of JPS54115007A publication Critical patent/JPS54115007A/ja
Publication of JPS6131678B2 publication Critical patent/JPS6131678B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
JP2307178A 1978-02-28 1978-02-28 Line monitor system Granted JPS54115007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2307178A JPS54115007A (en) 1978-02-28 1978-02-28 Line monitor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2307178A JPS54115007A (en) 1978-02-28 1978-02-28 Line monitor system

Publications (2)

Publication Number Publication Date
JPS54115007A JPS54115007A (en) 1979-09-07
JPS6131678B2 true JPS6131678B2 (enExample) 1986-07-22

Family

ID=12100161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2307178A Granted JPS54115007A (en) 1978-02-28 1978-02-28 Line monitor system

Country Status (1)

Country Link
JP (1) JPS54115007A (enExample)

Also Published As

Publication number Publication date
JPS54115007A (en) 1979-09-07

Similar Documents

Publication Publication Date Title
KR950009577B1 (ko) 전화 스테이션 세트와 사업용 통신 시스템을 상호 접속시키는 인터페이스 장치 및 통신 관리 장치
US4355207A (en) Telephone answering system
US5499287A (en) FAX-telephone interface circuit
JPH0799841B2 (ja) 信号多重化回路
CA1089134A (en) Telephone station set interface circuit
SE460166B (sv) Foerfarande och kopplingssystem foer oeverflyttning av dataanrop fraan en telefon till en digital terminal
US5228081A (en) Ringing signal control circuit for an enhanced subscriber line interface
JPH0481920B2 (enExample)
JPS6131678B2 (enExample)
IE49774B1 (en) Digital telephone station
US3201518A (en) Party line
US6853725B2 (en) Method and apparatus for off-hook management of plural subscriber premises devices connected to same telephone line
JP3232640B2 (ja) 電話交換機
JP3067273B2 (ja) ボタン電話装置
JP3356597B2 (ja) ノーリンギング通信システム
RU2040861C1 (ru) Автоматический телефонный концентратор
JPS56126364A (en) Circuit switching system
JP2504566B2 (ja) 局線トランク回路
JP2663361B2 (ja) 国際公衆電話回線選択装置
JPH0420318B2 (enExample)
RU1830191C (ru) Вход щий шнуровой комплект
JPS5974794A (ja) 着信回線自動検知型キ−テレホン
JPS63190459A (ja) 有線放送用電話機
KR19990053843A (ko) 구내교환기의 라인 안정화 장치 및 방법
JPS6245258A (ja) ダイヤル信号送出方式