KR900005762A - Method of Maintaining Over-Call Line at Restart by Instant Power Failure in Switching Device - Google Patents

Method of Maintaining Over-Call Line at Restart by Instant Power Failure in Switching Device Download PDF

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Publication number
KR900005762A
KR900005762A KR1019880012632A KR880012632A KR900005762A KR 900005762 A KR900005762 A KR 900005762A KR 1019880012632 A KR1019880012632 A KR 1019880012632A KR 880012632 A KR880012632 A KR 880012632A KR 900005762 A KR900005762 A KR 900005762A
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KR
South Korea
Prior art keywords
line
station
trunk line
ram
trunk
Prior art date
Application number
KR1019880012632A
Other languages
Korean (ko)
Other versions
KR910003298B1 (en
Inventor
장태순
Original Assignee
강진구
삼성반도체통신 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 강진구, 삼성반도체통신 주식회사 filed Critical 강진구
Priority to KR1019880012632A priority Critical patent/KR910003298B1/en
Publication of KR900005762A publication Critical patent/KR900005762A/en
Application granted granted Critical
Publication of KR910003298B1 publication Critical patent/KR910003298B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

내용 없음.No content.

Description

교환장치에 있어서 순간 정전에 의한 리스타트시 국선 통화로 유지방법Method of Maintaining Over-Call Line at Restart by Instant Power Failure in Switching Device

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

제2도는 본 발명을 수행하기 위한 교환장치의 블럭도.2 is a block diagram of an exchange apparatus for carrying out the present invention.

제3도는 본 발명에 따른 리스타트시의 흐름도.3 is a flow chart at restart according to the present invention.

Claims (1)

교환장치에 있어서 순간정전에 의한 리스타트시 국선 통하로 유지방법에 있어서, 초기 전원전압 인가시에 국선 및 내선의 통화상태를 알수 있는 백업램의 버퍼를 억세스하여 내선과 통화중이었던 국선이 있는 가를 검색하는 제1단계와, 상기 제 1단계의 검색에서 내선과 통화중이었던 국선 없을 때에 램영역, 국선릴레이. 스위칭 네트워크등을 초기화하고 시스템프로그램을 수행하는 제2단계와, 상기 제1단계의 검색에서 내선과 통화중이었던 국선이 존재시에는 국선 상태를 나타내는 램 버퍼에 특정비트를 세트하고 해당 국선 보류 비트를 세트하는 제3단계와, 국선 보류시간을 초기화하고 보류카운터를 일정값까지 증가하는 제4단계와, 국선과 통화중이었던 내선에 보류 데이타를 전송하고 국선에 보류음을 송출하는 제5단계와, 국선을 전부 체크하였는가를 검색하여 아닐시에 상기 제1단계의 검색과정부터 반복 실험하는 제6단계와, 상기 제6단계의 검색결과가 모든 국선에 대한 체크 완료시 특정 비트가 세트된 국선 및 내선에 해당하는 램의 버퍼를 제외하고 초기화 루틴이 제2단계를 수행하여 통화 프로그램을 수행하는 제7단계로 이루어짐을 특징으로 하는 방법.In the exchange system, when the restart is caused by a momentary power interruption, the method of maintaining the trunk line is to check whether there is a trunk line that is in communication with the station by accessing a buffer of the backup RAM that shows the call status of the trunk line and the station when the initial power voltage is applied. The RAM area and the CO line relay when the first step of searching and the CO line which was in communication with the station in the first step of searching are not present. In the second step of initializing the switching network and performing a system program, and when there is a trunk line that was in communication with the station in the search of the first stage, a specific bit is set in the RAM buffer indicating the trunk line state and the corresponding trunk line hold bit is set. A third step of setting, a fourth step of initializing the CO line holding time and increasing the holding counter to a predetermined value, and a fifth step of transmitting the hold data to the station that was on the line with the CO line and transmitting the hold sound to the CO line; The sixth step of repetitive experiment from the first step of searching if the trunk line is checked all the time, and when the check result of the sixth step is completed for all the trunk lines, the trunk line and station The initialization routine includes a seventh step of performing a call program by performing a second step, except for a RAM buffer corresponding to the RAM. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880012632A 1988-09-29 1988-09-29 Power supply method in exchange when electricity fails KR910003298B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880012632A KR910003298B1 (en) 1988-09-29 1988-09-29 Power supply method in exchange when electricity fails

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880012632A KR910003298B1 (en) 1988-09-29 1988-09-29 Power supply method in exchange when electricity fails

Publications (2)

Publication Number Publication Date
KR900005762A true KR900005762A (en) 1990-04-14
KR910003298B1 KR910003298B1 (en) 1991-05-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880012632A KR910003298B1 (en) 1988-09-29 1988-09-29 Power supply method in exchange when electricity fails

Country Status (1)

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KR (1) KR910003298B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI226877B (en) 2001-07-12 2005-01-21 Mitsuboshi Diamond Ind Co Ltd Method of manufacturing adhered brittle material substrates and method of separating adhered brittle material substrates

Also Published As

Publication number Publication date
KR910003298B1 (en) 1991-05-25

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