KR950000526B1 - Automatic alarm of telephone trouble - Google Patents

Automatic alarm of telephone trouble Download PDF

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Publication number
KR950000526B1
KR950000526B1 KR1019910007857A KR910007857A KR950000526B1 KR 950000526 B1 KR950000526 B1 KR 950000526B1 KR 1019910007857 A KR1019910007857 A KR 1019910007857A KR 910007857 A KR910007857 A KR 910007857A KR 950000526 B1 KR950000526 B1 KR 950000526B1
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KR
South Korea
Prior art keywords
telephone
circuit
alarm
voltage
zener diode
Prior art date
Application number
KR1019910007857A
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Korean (ko)
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KR920022722A (en
Inventor
홍오주
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홍오주
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Publication date
Application filed by 홍오주 filed Critical 홍오주
Priority to KR1019910007857A priority Critical patent/KR950000526B1/en
Publication of KR920022722A publication Critical patent/KR920022722A/en
Application granted granted Critical
Publication of KR950000526B1 publication Critical patent/KR950000526B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

The alarm circuit installed between a telephone plug and an outlet comprises a rectifier connected to lines of the telephone exchanger, a plurality of resistor for setting a preset voltage level, a zener diode for maintaining six volts in the normal mode, and operational amplifier for receiving a reference and output voltages and for an alarm signal driving an alarm when the telephone trouble occurs.

Description

전화 고장자동감지 경보기Telephone failure alarm

제 1 도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

제 2 도는 본 발명의 설치방법예시도이다.2 is an illustration of an installation method of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

D1: 전파정류자 D2: 제너다이오드D 1 : Full-wave rectifier D 2 : Zener diode

R : 저항 R4: 가변저항R: Resistor R 4 : Variable resistor

LED : 가시경보 AL : 가청경보LED: Visible Alarm AL: Audible Alarm

본 발명은 가입자 전화가 고장상태에 있을때 가입자가 전화를 걸어보지 않고 전화의 고장을 인지할 수 있도록 한 전화고장 자동감지 경보기에 관한 것이다.The present invention relates to a telephone failure automatic detection alarm that enables a subscriber to recognize a failure of a telephone without making a telephone call when the subscriber's telephone is in a broken state.

종래의 전화기에는 이러한 장치가 없기 때문에 외부에서 전화를 걸어 이상을 감지한 사람이 신고를 하거나 아니면 자기가 전화를 걸기위해 수화기를 들고 다이얼을 돌려보지 않는한 자기의 전화가 고정상태인지 아닌지를 알 수가 없어 즉각적인 고장파악이 되지 않기 때문에 불이익을 겪는 일이 많이 있었다.Conventional phones do not have these devices, so it is not possible for someone to detect an abnormality by dialing from the outside, or knowing if their phone is stationary unless they pick up the handset and turn the dial to make a call. There was a lot of disadvantages because there is no immediate failure.

본 발명은 위와같은 종래의 결점을 시정하기 위하여 발명한 것으로 전화국의 교환기 시설의 기본작동에는 영향을 주지 않도록 하면서 전화의 고장을 감지하여 가입자에게 알려줄 수 있게한 것인데 보다 상세히 설명하면 다음과 같다.The present invention has been invented to correct the above-mentioned drawbacks, so that the failure of the telephone can be detected and notified to the subscriber while not affecting the basic operation of the exchange facility of the telephone station.

본 발명의 감지기는 제 1 도에 표현된 회로와 같이 구성되는 것으로 회로(1)에서는 제너다이오드(D2) 양단에 설치되는 저항(R1)과 (R2) 사이에 전파 정류자(D1)를 설치하여 L1L2를 교환기라인에 연결시키고 전화기가 훅크오프 상태일 때 L1L2양단에 걸리는 전압이 48V 정도가 되게하여 이때 제너다이오드(D2) 양단에 6V의 전압이 되도록 R1R2값을 설정케하고 회로(2)에서는 정상상태와 비정상 상태의 전위차를 검출하여 가시(LED) 및 가청(AL)경보를 동작시키는 것으로 OP앰프(-)단에는 일정한 기준 전압이 설정되어야 하나 선로 및 전화기 특성에 따라 회로 1의 D2양단전압이 변화되므로 저항(R4)의 가변저항값을 조정하여 비정상적일 때 OP앰프가 동작되게 하고 콘덴서(C1)가 작동시간을 조정하여 경보의 오동작을 방지케한 구성이다.Sensors of the present invention is the to be constructed as the circuit represented in FIG. 1 circuit (1) the zener diode propagation rectifier (D 1) between the (D 2) resistance, which is installed on both ends (R 1) and (R 2) L 1 L 2 is connected to the exchange line, and when the phone is hooked off, the voltage across L 1 L 2 is about 48V. At this time, the voltage of 6V across the zener diode (D 2 ) is R 1. Kane sets the R 2 values, and the circuit (2) in the normal state and by detecting the potential difference between the abnormal state visible (LED) and audible (AL) to OP amplifier to operate the alarm (-) terminal is one to be set a constant reference voltage, Since the voltage across D 2 of circuit 1 changes according to the characteristics of the line and the telephone, adjust the variable resistance value of resistor (R 4 ) to operate the OP amplifier in case of abnormality, and condenser (C 1 ) adjust the operation time This prevents malfunction.

이와 같이된 본 발명은 회로 1에서 L1L2를 교환기라인에 연결시키고 전화기가 훅오프 상태일 때 L1L2양단에 걸리는 전압이 48V 정도이고 이때 제너다이오드(D2) 양단에는 6V의 전압이 되도록 R1R2이 값이 정해지기 때문에 훅크온 상태에서 L1L2양단의 전압은 5V-15V로 되고 전화기 특성과 선로 루프 저항에 따라 일정하지 않으나 MIOCN(수화기 방치 기능 감지전화기) 전자교환기에서 라인파킹이 되면 L1L2양단에는 3.5V-5.5V의 전압이 나고 그러나 정상적인 Busy 상태와 라인파킹 상태는 항상 1.5V 이상의 전위차가 나타나는바 외선 고장일 때는 교환기측 전원이 차단되는 상태이므로 L1L2양단에는 라인파킹 상태이하로 전압이 내려가게되어 통화중 상태와 구분되며 회로(2)에서 정상적인 상태와 비정상적인 상태의 전위차를 검출하여 경보를 동작시키게 되며 이렇게 하므로서 본기기의 절연 저항은 3.5MΩ으로 본 전화 고장자동감지기는 가입자 선로저항 절연저항 정전용량 측정을 통한 가입자 선로 유지보수 작업에 영향을 주지 않으며 본기기는 대부분에 가입자에 적용 가능하며 특별히 선로 루프저항값이 크거나 전화기가 특이하여 적용이 어려운 가입자는 제작시 미리 조정된 전화고장 자동감지기를 선택하면 되고 가청 및 가시경보의 동작은 이상 상태 발생후 5초-20초후에 동작하도록 세팅되며 기존 전화시에 간단편히 부착하여 사용할 수 있는 이점이 있는 것이다.In the present invention as described above, in the circuit 1, when L 1 L 2 is connected to the switch line and the phone is in the hook-off state, the voltage across the L 1 L 2 is about 48V, and at this time, the voltage of 6V across the zener diode (D 2 ). Since R 1 R 2 is determined so that the voltage on both ends of L 1 L 2 in the hook-on state is 5V-15V, it is not constant depending on the characteristics of the telephone and the line loop resistance, but it is MIOCN electronic exchanger When line parking occurs at L 1 L 2 , 3.5V-5.5V voltage appears at both ends. However, normal busy state and line parking state always show a potential difference of 1.5V or more. At both ends of 1 L 2 , the voltage drops below the line parking state to distinguish it from a busy state, and the circuit (2) detects a potential difference between a normal state and an abnormal state to activate an alarm. In this way, the insulation resistance of this unit is 3.5MΩ, so the automatic failure detection of the telephone does not affect the maintenance of subscriber line through measurement of subscriber line resistance, insulation resistance and capacitance. Subscribers who have difficulty in applying due to large loop resistance or unusual phone can select auto-detection of pre-adjusted telephone failure during manufacture. The operation of audible and visual alarms is set to operate 5 to 20 seconds after an abnormal condition. There is an advantage that can be easily attached to the phone.

Claims (1)

전화기 풀러그와 콘센트 사이에 장치되는 전화고장 자동감지기는 정상적인 상태와 비정상적인 상태의 전위차를 검출하여 가시경보와 가청경보를 동작시키게 첨부도면과 같은 회로를 구성하되 회로(1)에서는 L1L2를 교환기 라인에 연결시키고 전화기가 Hookoff 일때, L1L2양단에48V 전압이 걸리게하며 제너다이오드(D2) 양단에는 6V의 전압이 걸리도록 R1R2의 값을 정하고 회로(2)에서는 OP앰프의(-)단에 일정기준 저압이 설정되어야 하나 회로(1)의 D2양단의 전압이 저항(P4)의 반고정 저항값을 조정하여 비정상 상태일때 OP앰프가 작동되게 한 전화고장 자동감지 경보기.Telephone puller telephone automatic fault detectors are devices in between the outlet is normal and the abnormal detecting a state potential difference of the circuit, such as a visual alarm and the accompanying drawings, thereby operating the audible alarm, but the circuit (1) to L 1, L 2 When connected to the exchange line and the phone is hooked off, apply 48V voltage across L 1 L 2 , and set the value of R 1 R 2 so that 6V is applied across Zener diode (D 2 ). A certain standard low voltage should be set at the (-) end of the circuit, but the automatic detection of the telephone fault caused the OP amplifier to operate when the voltage across the D 2 of the circuit (1) adjusts the semi-fixed resistance value of the resistor (P 4 ). alarm.
KR1019910007857A 1991-05-13 1991-05-13 Automatic alarm of telephone trouble KR950000526B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910007857A KR950000526B1 (en) 1991-05-13 1991-05-13 Automatic alarm of telephone trouble

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910007857A KR950000526B1 (en) 1991-05-13 1991-05-13 Automatic alarm of telephone trouble

Publications (2)

Publication Number Publication Date
KR920022722A KR920022722A (en) 1992-12-19
KR950000526B1 true KR950000526B1 (en) 1995-01-24

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Application Number Title Priority Date Filing Date
KR1019910007857A KR950000526B1 (en) 1991-05-13 1991-05-13 Automatic alarm of telephone trouble

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Also Published As

Publication number Publication date
KR920022722A (en) 1992-12-19

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