JPH0342835B2 - - Google Patents

Info

Publication number
JPH0342835B2
JPH0342835B2 JP5957986A JP5957986A JPH0342835B2 JP H0342835 B2 JPH0342835 B2 JP H0342835B2 JP 5957986 A JP5957986 A JP 5957986A JP 5957986 A JP5957986 A JP 5957986A JP H0342835 B2 JPH0342835 B2 JP H0342835B2
Authority
JP
Japan
Prior art keywords
photocoupler
circuit
dial
loop
polarity
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
JP5957986A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62217792A (ja
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 filed Critical
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 JPS62217792A (ja) 1987-09-25
JPH0342835B2 true JPH0342835B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPS62217792A (ja) 1987-09-25

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term