JPS6242655A - 監視回路 - Google Patents

監視回路

Info

Publication number
JPS6242655A
JPS6242655A JP60180956A JP18095685A JPS6242655A JP S6242655 A JPS6242655 A JP S6242655A JP 60180956 A JP60180956 A JP 60180956A JP 18095685 A JP18095685 A JP 18095685A JP S6242655 A JPS6242655 A JP S6242655A
Authority
JP
Japan
Prior art keywords
line
circuit
current
output
sum
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
JP60180956A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0453346B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Kenji Takato
健司 高遠
Toshiro Tojo
敏郎 東條
Yozo Iketani
池谷　陽三
Mitsutoshi Ayano
綾野　光俊
Kiyoshi Shibuya
清 渋谷
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 JP60180956A priority Critical patent/JPS6242655A/ja
Priority to AU61585/86A priority patent/AU574277B2/en
Priority to US06/897,914 priority patent/US4827505A/en
Priority to CA000516222A priority patent/CA1260170A/en
Priority to CN86105137A priority patent/CN1003032B/zh
Priority to KR8606880A priority patent/KR900001135B1/ko
Priority to DE8686111530T priority patent/DE3687153T2/de
Priority to EP86111530A priority patent/EP0212632B1/en
Publication of JPS6242655A publication Critical patent/JPS6242655A/ja
Publication of JPH0453346B2 publication Critical patent/JPH0453346B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
JP60180956A 1985-08-20 1985-08-20 監視回路 Granted JPS6242655A (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP60180956A JPS6242655A (ja) 1985-08-20 1985-08-20 監視回路
AU61585/86A AU574277B2 (en) 1985-08-20 1986-08-19 Subscriber line interface circuit
US06/897,914 US4827505A (en) 1985-08-20 1986-08-19 Subscriber line interface circuit
CA000516222A CA1260170A (en) 1985-08-20 1986-08-19 Subscriber line interface circuit
CN86105137A CN1003032B (zh) 1985-08-20 1986-08-20 用户线接口电路
KR8606880A KR900001135B1 (en) 1985-08-20 1986-08-20 Subscriber line interface circuit
DE8686111530T DE3687153T2 (de) 1985-08-20 1986-08-20 Teilnehmerschnittstellenschaltung.
EP86111530A EP0212632B1 (en) 1985-08-20 1986-08-20 Subscriber line interface circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60180956A JPS6242655A (ja) 1985-08-20 1985-08-20 監視回路

Publications (2)

Publication Number Publication Date
JPS6242655A true JPS6242655A (ja) 1987-02-24
JPH0453346B2 JPH0453346B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-08-26

Family

ID=16092212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60180956A Granted JPS6242655A (ja) 1985-08-20 1985-08-20 監視回路

Country Status (1)

Country Link
JP (1) JPS6242655A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01166657A (ja) * 1987-12-22 1989-06-30 Fujitsu Ltd ループ・地絡監視回路
JPH01284144A (ja) * 1988-05-11 1989-11-15 Nec Corp 加入者線の地絡検出表示方式

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01166657A (ja) * 1987-12-22 1989-06-30 Fujitsu Ltd ループ・地絡監視回路
JPH01284144A (ja) * 1988-05-11 1989-11-15 Nec Corp 加入者線の地絡検出表示方式

Also Published As

Publication number Publication date
JPH0453346B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-08-26

Similar Documents

Publication Publication Date Title
US4764956A (en) Active impedance line feed circuit
US4406929A (en) Hook status detector for a subscriber loop interface circuit
JPS6242655A (ja) 監視回路
JPS62253254A (ja) 検出回路
US4524246A (en) SLIC II--common-mode current rejection
CA2146596C (en) Loop current detector
US4358645A (en) Loop sensing circuit for use with a subscriber loop interface circuit
JPH02157915A (ja) アナログ出力回路の故障検出装置
JPH02156728A (ja) Ａ／ｄ変換器のバイアス回路
JPH04238272A (ja) 漏洩電流検知機能を備えた電力供給回路
US4631362A (en) Low resistance origination scan circuit
JPS6049417A (ja) 過電流検出回路
JPH0361393B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPH055507Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP3751822B2 (ja) 電源装置
JPH07193618A (ja) オフフック検出回路
JPS59127500A (ja) 加入者回路
JP2974586B2 (ja) 加入者回線監視回路
JP3850992B2 (ja) 複合形小電流スイッチ回路
JPS5927164B2 (ja) 電源異常検出装置
JPH0213055A (ja) 加入者回路
JPS63314471A (ja) 給電電流監視回路
JPS59775B2 (ja) 温度変換器
JPS62110356A (ja) グラウンドボタン押下検出回路
JPH056946B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)