JPS62217792A - 極性反転検出回路 - Google Patents

極性反転検出回路

Info

Publication number
JPS62217792A
JPS62217792A JP5957986A JP5957986A JPS62217792A JP S62217792 A JPS62217792 A JP S62217792A JP 5957986 A JP5957986 A JP 5957986A JP 5957986 A JP5957986 A JP 5957986A JP S62217792 A JPS62217792 A JP S62217792A
Authority
JP
Japan
Prior art keywords
circuit
photocoupler
dial
polarity
loop
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
JP5957986A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0342835B2 (en]
Inventor
Masaya Kuwano
桑野　雅也
Yoshihiro Kawada
川田　義広
Hiroshi Wakabayashi
若林　寛
Teruyuki Kubo
久保　輝幸
Masaji Muranaka
村中　正次
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.)
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone Corp
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 Iwatsu Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Iwatsu Electric Co Ltd
Priority to JP5957986A priority Critical patent/JPS62217792A/ja
Publication of JPS62217792A publication Critical patent/JPS62217792A/ja
Publication of JPH0342835B2 publication Critical patent/JPH0342835B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
JP5957986A 1986-03-19 1986-03-19 極性反転検出回路 Granted JPS62217792A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5957986A JPS62217792A (ja) 1986-03-19 1986-03-19 極性反転検出回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5957986A JPS62217792A (ja) 1986-03-19 1986-03-19 極性反転検出回路

Publications (2)

Publication Number Publication Date
JPS62217792A true JPS62217792A (ja) 1987-09-25
JPH0342835B2 JPH0342835B2 (en]) 1991-06-28

Family

ID=13117279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5957986A Granted JPS62217792A (ja) 1986-03-19 1986-03-19 極性反転検出回路

Country Status (1)

Country Link
JP (1) JPS62217792A (en])

Also Published As

Publication number Publication date
JPH0342835B2 (en]) 1991-06-28

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term