JPH0260109B2 - - Google Patents

Info

Publication number
JPH0260109B2
JPH0260109B2 JP6974684A JP6974684A JPH0260109B2 JP H0260109 B2 JPH0260109 B2 JP H0260109B2 JP 6974684 A JP6974684 A JP 6974684A JP 6974684 A JP6974684 A JP 6974684A JP H0260109 B2 JPH0260109 B2 JP H0260109B2
Authority
JP
Japan
Prior art keywords
line
abnormal
state
polarity
normal
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
JP6974684A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60213159A (ja
Inventor
Hideyasu Hashiba
Takao Ooshima
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.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP6974684A priority Critical patent/JPS60213159A/ja
Publication of JPS60213159A publication Critical patent/JPS60213159A/ja
Publication of JPH0260109B2 publication Critical patent/JPH0260109B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP6974684A 1984-04-06 1984-04-06 回線障害監視装置 Granted JPS60213159A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6974684A JPS60213159A (ja) 1984-04-06 1984-04-06 回線障害監視装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6974684A JPS60213159A (ja) 1984-04-06 1984-04-06 回線障害監視装置

Publications (2)

Publication Number Publication Date
JPS60213159A JPS60213159A (ja) 1985-10-25
JPH0260109B2 true JPH0260109B2 (enrdf_load_stackoverflow) 1990-12-14

Family

ID=13411670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6974684A Granted JPS60213159A (ja) 1984-04-06 1984-04-06 回線障害監視装置

Country Status (1)

Country Link
JP (1) JPS60213159A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS60213159A (ja) 1985-10-25

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term