KR920014114A - Analog trunking and premises broadcasting simultaneous reception circuit in electronic switchboard - Google Patents

Analog trunking and premises broadcasting simultaneous reception circuit in electronic switchboard Download PDF

Info

Publication number
KR920014114A
KR920014114A KR1019900020356A KR900020356A KR920014114A KR 920014114 A KR920014114 A KR 920014114A KR 1019900020356 A KR1019900020356 A KR 1019900020356A KR 900020356 A KR900020356 A KR 900020356A KR 920014114 A KR920014114 A KR 920014114A
Authority
KR
South Korea
Prior art keywords
bits
digit
station
relay
detects
Prior art date
Application number
KR1019900020356A
Other languages
Korean (ko)
Other versions
KR930010296B1 (en
Inventor
신성열
Original Assignee
박성규
대우통신 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 박성규, 대우통신 주식회사 filed Critical 박성규
Priority to KR1019900020356A priority Critical patent/KR930010296B1/en
Publication of KR920014114A publication Critical patent/KR920014114A/en
Application granted granted Critical
Publication of KR930010296B1 publication Critical patent/KR930010296B1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/50Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

내용 없음No content

Description

전전자 교환기에서 아날로그 트렁크 및 구내 방송 동시 수용회로Analog trunking and premises broadcasting simultaneous reception circuit in electronic switchboard

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 발명의 구현에 따른 계통도, 제2도는 본 발명의 직접 발신 기능에 따른 연결도, 제3도는 본 발명의 전용선 기능에 따른 연결도.1 is a schematic diagram according to an embodiment of the present invention, FIG. 2 is a connection diagram according to a direct call function of the present invention, and FIG. 3 is a connection diagram according to a dedicated line function of the present invention.

Claims (2)

전전자 교환기에서 하나의 회로팩으로 국설 교환기 가입자 회로팩을 연결하여 두개의 비트(D1,D3)로 릴레이를 동작시켜 상대방 회선을 포착하며, 한 비트(D1) 데이타의 하이 로우에 의한 릴레이 동작으로 디지트를 송출하고, 상대국으로 부터 극성 반전 신호를 검출하여 상위 4비트(D4-D7)중 해당 채널의 비트를 세팅시켜 통화를 가능케 하는 직접 발신 기능의 제1과정과 상대국 아날로그 트렁크에 연결하여 두개의 비트(D1,D3)로 릴레이를 동작시켜 상대국 트렁크를 포착하며, 하나의 비트로 릴레이에 의한 디지트(D1)및 극성 반전(D2)를 송출하고, 상대국의 디지트를 검출하여 8비트 중 하위 4비트(D0-D3)를 극성 반전을 검출하여 상위 4비트(D4-D7)를 세팅하여 통화하는 시키는 루프 방식과 하나의 비트(D1)에 의한 릴레이를 동작하여 트렁크 포착과 디지트를 M선을 통해 송출하고, 상대국에서 송출된 데이타를 E선으로 검출하여 하위 4비트(D0-D3)를 세팅하여 통화하는 2선 EM 방식의 전용선 기능을 수행하는 제2과정과 앰프와 스피커를 연결한 후, -48V 와 지기를 하드 웨어적인 스위치로 차단시켜 직류 전류는 흐르지 않고 음성 신호만 앰프로 유입시시키는 구내 방송기능의 제3과정에서 세개의 과정 모두를 하나의 채널로 하여 4개의 채널을 동일 회로팩에 수용시킨 회로.It connects the local exchange subscriber circuit pack from one electronic switch to one circuit pack and operates the relay with two bits (D1, D3) to capture the other party's circuit, and the relay operation by high low of one bit (D1) data. Transmit Digit, detect polarity reversal signal from the other station, and set the bit of the corresponding channel among the upper 4 bits (D4-D7) to make the call. The relay is operated with bits D1 and D3 to capture the trunk of the other station, and one bit transmits the digit D1 and the polarity inversion D2 by the relay, detects the digit of the other station, and detects the digit of the other station. D0-D3) detects polarity inversion and sets the upper 4 bits (D4-D7) to make a call, and operates relay by one bit (D1) to capture trunk and digit through M line. After connecting the amplifier and the speaker with the 2nd process which performs the dedicated line function of the 2-wire EM method which sends out the data, and detects the data transmitted from the other station by E line and sets the lower 4 bits (D0-D3), In the third process of premises broadcasting function, which cuts -48V and branch by hardware switch, DC current does not flow and only voice signal flows into the amplifier. Circuit accommodated in the. 제1항에 있어서, 구내방송 기능인 제3과정을 아날로그 트렁크 회로에 -48V와 지기(GROUND)개방용 스위치를 부착하여 사용하거나, 스위치 대신에 아날로그 트렁의 직접 발신 기능(DOD)을 소프트 웨어로 처리하여 -48V와 지기를 차단하고서 음성 신호만 엠프로 유입시켜 전전자 교환기에서 구내 방송 기능으로 사용하는 방법.The method according to claim 1, wherein the third process, which is the on-premises broadcasting function, is used by attaching a switch for opening -48V and a ground to the analog trunk circuit, or processing the direct transmission function (DOD) of the analog trunk in software instead of the switch. By blocking -48V and branch, only voice signal is introduced into the amplifier and used as an on-premises broadcasting function in an electronic switchboard. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900020356A 1990-12-12 1990-12-12 Analog trunk circuit in electronic exchange KR930010296B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900020356A KR930010296B1 (en) 1990-12-12 1990-12-12 Analog trunk circuit in electronic exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900020356A KR930010296B1 (en) 1990-12-12 1990-12-12 Analog trunk circuit in electronic exchange

Publications (2)

Publication Number Publication Date
KR920014114A true KR920014114A (en) 1992-07-30
KR930010296B1 KR930010296B1 (en) 1993-10-16

Family

ID=19307357

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900020356A KR930010296B1 (en) 1990-12-12 1990-12-12 Analog trunk circuit in electronic exchange

Country Status (1)

Country Link
KR (1) KR930010296B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9522796B2 (en) 2013-12-18 2016-12-20 Samsung Electronics Co., Ltd. Scanning device and image forming apparatus to convey a document

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9522796B2 (en) 2013-12-18 2016-12-20 Samsung Electronics Co., Ltd. Scanning device and image forming apparatus to convey a document

Also Published As

Publication number Publication date
KR930010296B1 (en) 1993-10-16

Similar Documents

Publication Publication Date Title
ES8401698A1 (en) Home communications and control system
US4088844A (en) Telephone station set interface circuit
SE8503209D0 (en) DEVICE ON A PORTFOLIO PLANT INTENDED TO BE CONNECTED TO AN ALL SUBSCRIBE PHONE
US4059732A (en) Centralized telephone answering apparatus with remote accessing
KR920014114A (en) Analog trunking and premises broadcasting simultaneous reception circuit in electronic switchboard
CA1267960C (en) Multiple access communication system having loop- check circuitry for switching intraoffice connections
US4286119A (en) Arrangement for concentrating pulse code modulation processing circuits in a digital telephone office
JPS57145466A (en) Switchboard
JPS59193689A (en) Repeating system for dial signal
SE9803887L (en) Method and apparatus for securing an ADSL connection
JPS6432748A (en) Telephone system
KR950016420A (en) Private Switching Device with Cellular Telephone Line
JPS6464465A (en) Facsimile equipment
KR950002291A (en) Digital transmission
JPS5647156A (en) Conference telephone release system
EP0991252A3 (en) Subscriber line test system for access network
FR2592541A1 (en) Teleconference telephone terminal
KR920005657A (en) Outgoing call control method using common line signaling
KR930011536A (en) Extension and trunk line sharing circuit
JPS5590169A (en) Key-number registration system
KR940017640A (en) Method for preventing unauthorized telephone coupler and its device
KR910002196A (en) Direct subscriber dialing method of group telephone exchange
JPS6290067A (en) Incoming display system
JPS59154870A (en) Telephone exchange
KR880002341A (en) How to avoid long distance calls

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19960123

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee