JPH0317500Y2 - - Google Patents

Info

Publication number
JPH0317500Y2
JPH0317500Y2 JP1981069719U JP6971981U JPH0317500Y2 JP H0317500 Y2 JPH0317500 Y2 JP H0317500Y2 JP 1981069719 U JP1981069719 U JP 1981069719U JP 6971981 U JP6971981 U JP 6971981U JP H0317500 Y2 JPH0317500 Y2 JP H0317500Y2
Authority
JP
Japan
Prior art keywords
voltage
busy
subscriber
subscriber line
output
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
JP1981069719U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57181158U (enrdf_load_stackoverflow
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 JP1981069719U priority Critical patent/JPH0317500Y2/ja
Publication of JPS57181158U publication Critical patent/JPS57181158U/ja
Application granted granted Critical
Publication of JPH0317500Y2 publication Critical patent/JPH0317500Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
JP1981069719U 1981-05-14 1981-05-14 Expired JPH0317500Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981069719U JPH0317500Y2 (enrdf_load_stackoverflow) 1981-05-14 1981-05-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981069719U JPH0317500Y2 (enrdf_load_stackoverflow) 1981-05-14 1981-05-14

Publications (2)

Publication Number Publication Date
JPS57181158U JPS57181158U (enrdf_load_stackoverflow) 1982-11-17
JPH0317500Y2 true JPH0317500Y2 (enrdf_load_stackoverflow) 1991-04-12

Family

ID=29865587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981069719U Expired JPH0317500Y2 (enrdf_load_stackoverflow) 1981-05-14 1981-05-14

Country Status (1)

Country Link
JP (1) JPH0317500Y2 (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4887705A (enrdf_load_stackoverflow) * 1972-02-18 1973-11-17
JPS5919510Y2 (ja) * 1979-03-19 1984-06-05 日本電信電話株式会社 通話確認試験器

Also Published As

Publication number Publication date
JPS57181158U (enrdf_load_stackoverflow) 1982-11-17

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