JPH01162947U - - Google Patents

Info

Publication number
JPH01162947U
JPH01162947U JP5968088U JP5968088U JPH01162947U JP H01162947 U JPH01162947 U JP H01162947U JP 5968088 U JP5968088 U JP 5968088U JP 5968088 U JP5968088 U JP 5968088U JP H01162947 U JPH01162947 U JP H01162947U
Authority
JP
Japan
Prior art keywords
detecting
level
monitoring
signal
monitoring signal
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.)
Pending
Application number
JP5968088U
Other languages
English (en)
Japanese (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 JP5968088U priority Critical patent/JPH01162947U/ja
Publication of JPH01162947U publication Critical patent/JPH01162947U/ja
Pending legal-status Critical Current

Links

JP5968088U 1988-05-02 1988-05-02 Pending JPH01162947U (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5968088U JPH01162947U (nl) 1988-05-02 1988-05-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5968088U JPH01162947U (nl) 1988-05-02 1988-05-02

Publications (1)

Publication Number Publication Date
JPH01162947U true JPH01162947U (nl) 1989-11-14

Family

ID=31285429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5968088U Pending JPH01162947U (nl) 1988-05-02 1988-05-02

Country Status (1)

Country Link
JP (1) JPH01162947U (nl)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60204129A (ja) * 1984-03-28 1985-10-15 Nec Corp デ−タ回線自動切替方式
JPS61100031A (ja) * 1984-10-23 1986-05-19 Nec Corp 回線切替え装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60204129A (ja) * 1984-03-28 1985-10-15 Nec Corp デ−タ回線自動切替方式
JPS61100031A (ja) * 1984-10-23 1986-05-19 Nec Corp 回線切替え装置

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