JPS56154843A - Detecting circuit for fault of time-division multiplex transmitter - Google Patents

Detecting circuit for fault of time-division multiplex transmitter

Info

Publication number
JPS56154843A
JPS56154843A JP5830380A JP5830380A JPS56154843A JP S56154843 A JPS56154843 A JP S56154843A JP 5830380 A JP5830380 A JP 5830380A JP 5830380 A JP5830380 A JP 5830380A JP S56154843 A JPS56154843 A JP S56154843A
Authority
JP
Japan
Prior art keywords
fault
private lines
signal
detecting circuit
sig
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
JP5830380A
Other languages
Japanese (ja)
Inventor
Eizo Yano
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP5830380A priority Critical patent/JPS56154843A/en
Publication of JPS56154843A publication Critical patent/JPS56154843A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To prevent an accident by detecting easily the abnormal signal of a master equipment and the short circuit of two private lines, by providing a logical information part which generates information on a fault by logically operating the continuous counting output of a counter. CONSTITUTION:Electric power transmitted via two private lines is full-wave- rectified 4 to supply electric power V to fault detecting circuit A. Then, two private lines are provided with oscillating circuits 6 which operate corresponding to signal +SIG of the plus side and signal -SIG of the minus side corresponding to data of base-band transmission, and counters 7 which count the outputs of circuits 6 and are reset at rises of both the signals, and continuous counting outputs of both counters 7 are operated logically by logical information part 8 to generate information on a fault. Thus, the abnormal signal of master equipment 1 and the short circuit of two private lines are known easily to prevent an accident.
JP5830380A 1980-04-30 1980-04-30 Detecting circuit for fault of time-division multiplex transmitter Pending JPS56154843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5830380A JPS56154843A (en) 1980-04-30 1980-04-30 Detecting circuit for fault of time-division multiplex transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5830380A JPS56154843A (en) 1980-04-30 1980-04-30 Detecting circuit for fault of time-division multiplex transmitter

Publications (1)

Publication Number Publication Date
JPS56154843A true JPS56154843A (en) 1981-11-30

Family

ID=13080450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5830380A Pending JPS56154843A (en) 1980-04-30 1980-04-30 Detecting circuit for fault of time-division multiplex transmitter

Country Status (1)

Country Link
JP (1) JPS56154843A (en)

Similar Documents

Publication Publication Date Title
JPS56154843A (en) Detecting circuit for fault of time-division multiplex transmitter
JPS53132934A (en) Detector for abnormal state of data transmitter
CA2011821A1 (en) Error detecting device for electronic equipment
JPS5725734A (en) Party call receiver
JPS53932A (en) Encoder circuit
JPS5441002A (en) Data signal control system
JPS5436453A (en) Pressure alarm device
JPS55166362A (en) Signal transmitter
JPS5440010A (en) Centralized monitor system for digital transmission network
DE3162136D1 (en) Monitoring circuit for a signalling circuit of a braking device of a vehicle
JPS549385A (en) Monitoring control system
JPS5744356A (en) Ais signal detecting circuit
JPS56128033A (en) Circuit switching system
JPS55117363A (en) Monitor device for pulse code communication unit
JPS535910A (en) Signal detecting circuit
JPS5745742A (en) Signal transmitter
SU888160A1 (en) Multipoint indication device
JPS57160236A (en) Multiple transmission system for vehicle
JPS5240155A (en) Process for measuring pulse information at a remote place
JPS57138240A (en) Hairpin network
JPS57211864A (en) Sending system for message waiting signal
JPS5390708A (en) Transmitting system for synchronous signal
JPS5432906A (en) Swiching unit
JPS5523639A (en) Remote monitor and control unit
JPS57109441A (en) Self-diagnostic system for administrative radio system for prevention of disaster