KR960008423B1 - Apparatus for supplying subscriber calling signal in a relay circuit - Google Patents

Apparatus for supplying subscriber calling signal in a relay circuit Download PDF

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Publication number
KR960008423B1
KR960008423B1 KR93016863A KR930016863A KR960008423B1 KR 960008423 B1 KR960008423 B1 KR 960008423B1 KR 93016863 A KR93016863 A KR 93016863A KR 930016863 A KR930016863 A KR 930016863A KR 960008423 B1 KR960008423 B1 KR 960008423B1
Authority
KR
South Korea
Prior art keywords
gate
relay circuit
calling signal
signal
subscriber calling
Prior art date
Application number
KR93016863A
Other languages
Korean (ko)
Other versions
KR950007580A (en
Inventor
Soo-Hong Kim
Original Assignee
Daewoo Telecom 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 Daewoo Telecom Co Ltd filed Critical Daewoo Telecom Co Ltd
Priority to KR93016863A priority Critical patent/KR960008423B1/en
Publication of KR950007580A publication Critical patent/KR950007580A/en
Application granted granted Critical
Publication of KR960008423B1 publication Critical patent/KR960008423B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electronic Switches (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

a first AND gate (20) which receives the signals (/PONRST, /MRST); an oscillator (21) which generates pulse by receiving the output of the first AND gate (20); a first OR gate (24) which receives the inverted signal (EI bar) and the obstacle signal (FLT); a second OR gate (22) which outputs the relay control signal by receiving the output signals of the oscillator and the first AND gate; a second inverter (25) which outputs the obstacle state signal (SO); a second AND gate (26) which receives the signals (SI, /MRST); a third AND gate (27) which outputs the operation state signal (EO) by receiving the output signals of the first OR gate (24) and the second AND gate (26).
KR93016863A 1993-08-27 1993-08-27 Apparatus for supplying subscriber calling signal in a relay circuit KR960008423B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR93016863A KR960008423B1 (en) 1993-08-27 1993-08-27 Apparatus for supplying subscriber calling signal in a relay circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR93016863A KR960008423B1 (en) 1993-08-27 1993-08-27 Apparatus for supplying subscriber calling signal in a relay circuit

Publications (2)

Publication Number Publication Date
KR950007580A KR950007580A (en) 1995-03-21
KR960008423B1 true KR960008423B1 (en) 1996-06-26

Family

ID=19362157

Family Applications (1)

Application Number Title Priority Date Filing Date
KR93016863A KR960008423B1 (en) 1993-08-27 1993-08-27 Apparatus for supplying subscriber calling signal in a relay circuit

Country Status (1)

Country Link
KR (1) KR960008423B1 (en)

Also Published As

Publication number Publication date
KR950007580A (en) 1995-03-21

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