JPS5762643A - Fault detection system for radio equipment - Google Patents

Fault detection system for radio equipment

Info

Publication number
JPS5762643A
JPS5762643A JP55137808A JP13780880A JPS5762643A JP S5762643 A JPS5762643 A JP S5762643A JP 55137808 A JP55137808 A JP 55137808A JP 13780880 A JP13780880 A JP 13780880A JP S5762643 A JPS5762643 A JP S5762643A
Authority
JP
Japan
Prior art keywords
fault
signal
radio equipment
fault detection
detecting circuit
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
JP55137808A
Other languages
Japanese (ja)
Inventor
Kenichi Toriyama
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP55137808A priority Critical patent/JPS5762643A/en
Publication of JPS5762643A publication Critical patent/JPS5762643A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/10Monitoring; Testing of transmitters
    • H04B17/15Performance testing
    • H04B17/17Detection of non-compliance or faulty performance, e.g. response deviations

Abstract

PURPOSE:To make maintenance efficient, by transmitting a test signal for operations of a fault detecting circuit of a radio equipment from a control desk. CONSTITUTION:When an indication reporting a fault of a radio equipment comes to a control desk or the like during operating, a test signal 11 which has information for discriminating plural preliminarily prepared fault detection levels is transmitted to this radio equipment by a voice in-band signal or a contact signal, and a test signal control circuit 10 discriminates this test signal 11 and transmits a fault detection level set signal 12 to a fault detecting circuit 9 with the contact signal or a volt age signal to designate an optional one of fault detection levels prepared preliminarily in the fault detecting circuit 9, and the change of the output of a fault signal 7 is supervised in the control desk by presence or absence of an external output fault signal 8, thus discriminating whether the fault is a fault of the radio equipment or not.
JP55137808A 1980-10-03 1980-10-03 Fault detection system for radio equipment Pending JPS5762643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55137808A JPS5762643A (en) 1980-10-03 1980-10-03 Fault detection system for radio equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55137808A JPS5762643A (en) 1980-10-03 1980-10-03 Fault detection system for radio equipment

Publications (1)

Publication Number Publication Date
JPS5762643A true JPS5762643A (en) 1982-04-15

Family

ID=15207325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55137808A Pending JPS5762643A (en) 1980-10-03 1980-10-03 Fault detection system for radio equipment

Country Status (1)

Country Link
JP (1) JPS5762643A (en)

Similar Documents

Publication Publication Date Title
JPS5762643A (en) Fault detection system for radio equipment
JPS573153A (en) Fault detection system
JPS57143969A (en) Monitoring method for fault of public telephone and fault signal sending circuit and fault signal monitoring circuit
JPS6426176A (en) Automatic and real time disturbance monitoring/checking circuit network for microwave landing system
JPS5735749A (en) Detecting apparatus of abnormality of moisture meter
JPS5778218A (en) Discrimination system
JPS5466009A (en) Detection system for circuit fault of two-wire communication device
GB2051438A (en) Security alarm systems
JPS574623A (en) Fault monitoring system for cable relaying communication system
JPS54157010A (en) Subscriber congestion detection unit
JPS5739656A (en) Detection system for open subscriber line
JPS5720050A (en) Reception switching system of digital radio system
JPS56114449A (en) Signal supervisory equipment
JPS54139419A (en) Switching system for double-system transmission line
JPS55154640A (en) Terminal printer
CA1100650A (en) System for transmitting alarm information over telephone lines
JPS57109441A (en) Self-diagnostic system for administrative radio system for prevention of disaster
JPS56117441A (en) Suppressing method for undesired electric wave in information collecting system
JPS56142422A (en) Wireless transmission type weighing apparatus
JPS5787264A (en) Line monitoring system for high-level transmission control procedure
JPS5644278A (en) Video signal transmission line supervisory system
JPS56149894A (en) Alarm control device
JPS57106261A (en) Data transmission device
JPS5799846A (en) Short circuit detection system for time-division multiplex transmission system
JPS5797753A (en) Loop digital data highway device