JPS5970067A - リングトリツプ回路 - Google Patents

リングトリツプ回路

Info

Publication number
JPS5970067A
JPS5970067A JP17971582A JP17971582A JPS5970067A JP S5970067 A JPS5970067 A JP S5970067A JP 17971582 A JP17971582 A JP 17971582A JP 17971582 A JP17971582 A JP 17971582A JP S5970067 A JPS5970067 A JP S5970067A
Authority
JP
Japan
Prior art keywords
hook
diode
ring
trip circuit
ring trip
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.)
Granted
Application number
JP17971582A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0315874B2 (enrdf_load_stackoverflow
Inventor
Kaneichi Otsuki
大槻　兼市
Hiroki Yamada
山田　博希
Yoshihiro Jin
神　吉広
Masamichi Imai
今井　正道
Kenzo Hasegawa
長谷川　賢造
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 JP17971582A priority Critical patent/JPS5970067A/ja
Publication of JPS5970067A publication Critical patent/JPS5970067A/ja
Publication of JPH0315874B2 publication Critical patent/JPH0315874B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/026—Arrangements for interrupting the ringing current

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP17971582A 1982-10-15 1982-10-15 リングトリツプ回路 Granted JPS5970067A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17971582A JPS5970067A (ja) 1982-10-15 1982-10-15 リングトリツプ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17971582A JPS5970067A (ja) 1982-10-15 1982-10-15 リングトリツプ回路

Publications (2)

Publication Number Publication Date
JPS5970067A true JPS5970067A (ja) 1984-04-20
JPH0315874B2 JPH0315874B2 (enrdf_load_stackoverflow) 1991-03-04

Family

ID=16070601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17971582A Granted JPS5970067A (ja) 1982-10-15 1982-10-15 リングトリツプ回路

Country Status (1)

Country Link
JP (1) JPS5970067A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0315874B2 (enrdf_load_stackoverflow) 1991-03-04

Similar Documents

Publication Publication Date Title
JPH07502387A (ja) 光アイソレータを使用するソリッドステート絶縁装置
US5444777A (en) Battery feed for telephone line cards
JPS5970067A (ja) リングトリツプ回路
JPS6113796A (ja) 回線を流れる電流の変動を検出するための装置
CA2082321C (en) Circuit to detect the hook status and ringing at the cpe end of a telephone network
JPS60152161A (ja) 受話器取り上げ検出用電話回路
JPS625758A (ja) 電話回線電圧検出回路
JPH0741234Y2 (ja) 電話機用ドアホン接続回路
JP2567703B2 (ja) リンガ信号検出回路
JPS61144158A (ja) 応答検出回路
JPH02143657A (ja) リングトリップ回路
JPS5940340B2 (ja) リングトリツプ回路
KR0167376B1 (ko) 트랜스포머형 가입자 정합회로의 링트립 감지회로
JP2557969B2 (ja) 加入者電話用リングトリップ回路
JPS6135046A (ja) 呼出信号送出回路
JPS63129763A (ja) 呼出信号検出装置
JPS59115666A (ja) 電話回線への直流供給装置
JPS59221147A (ja) リング・トリツプ回路
JPS6342260A (ja) 差動信号検出回路
JPH01290353A (ja) リングトリップ回路
JPS59165554A (ja) リングトリツプ回路
JPH02291751A (ja) リングトリップ回路
JPS61126893A (ja) 信号伝達回路
JPH0444862B2 (enrdf_load_stackoverflow)
JPH04312093A (ja) 加入者回路の発呼検出回路