KR910013322U - Ring signal generator protection circuit of telephone - Google Patents

Ring signal generator protection circuit of telephone

Info

Publication number
KR910013322U
KR910013322U KR2019890018778U KR890018778U KR910013322U KR 910013322 U KR910013322 U KR 910013322U KR 2019890018778 U KR2019890018778 U KR 2019890018778U KR 890018778 U KR890018778 U KR 890018778U KR 910013322 U KR910013322 U KR 910013322U
Authority
KR
South Korea
Prior art keywords
telephone
signal generator
protection circuit
ring signal
generator protection
Prior art date
Application number
KR2019890018778U
Other languages
Korean (ko)
Other versions
KR940004803Y1 (en
Inventor
이창주
Original Assignee
대우전자 주식회사
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 대우전자 주식회사 filed Critical 대우전자 주식회사
Priority to KR2019890018778U priority Critical patent/KR940004803Y1/en
Publication of KR910013322U publication Critical patent/KR910013322U/en
Application granted granted Critical
Publication of KR940004803Y1 publication Critical patent/KR940004803Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/04—Transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
KR2019890018778U 1989-12-12 1989-12-12 Telephone ring signal generator protecting circuit KR940004803Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890018778U KR940004803Y1 (en) 1989-12-12 1989-12-12 Telephone ring signal generator protecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890018778U KR940004803Y1 (en) 1989-12-12 1989-12-12 Telephone ring signal generator protecting circuit

Publications (2)

Publication Number Publication Date
KR910013322U true KR910013322U (en) 1991-07-30
KR940004803Y1 KR940004803Y1 (en) 1994-07-21

Family

ID=19293055

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890018778U KR940004803Y1 (en) 1989-12-12 1989-12-12 Telephone ring signal generator protecting circuit

Country Status (1)

Country Link
KR (1) KR940004803Y1 (en)

Also Published As

Publication number Publication date
KR940004803Y1 (en) 1994-07-21

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Payment date: 20010629

Year of fee payment: 8

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