JPH01167748U - - Google Patents

Info

Publication number
JPH01167748U
JPH01167748U JP6537688U JP6537688U JPH01167748U JP H01167748 U JPH01167748 U JP H01167748U JP 6537688 U JP6537688 U JP 6537688U JP 6537688 U JP6537688 U JP 6537688U JP H01167748 U JPH01167748 U JP H01167748U
Authority
JP
Japan
Prior art keywords
communication line
terminal device
weak current
failure
detecting
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
JP6537688U
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 JP6537688U priority Critical patent/JPH01167748U/ja
Publication of JPH01167748U publication Critical patent/JPH01167748U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
JP6537688U 1988-05-18 1988-05-18 Pending JPH01167748U (US20100268047A1-20101021-C00003.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6537688U JPH01167748U (US20100268047A1-20101021-C00003.png) 1988-05-18 1988-05-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6537688U JPH01167748U (US20100268047A1-20101021-C00003.png) 1988-05-18 1988-05-18

Publications (1)

Publication Number Publication Date
JPH01167748U true JPH01167748U (US20100268047A1-20101021-C00003.png) 1989-11-27

Family

ID=31290814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6537688U Pending JPH01167748U (US20100268047A1-20101021-C00003.png) 1988-05-18 1988-05-18

Country Status (1)

Country Link
JP (1) JPH01167748U (US20100268047A1-20101021-C00003.png)

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