KR20010054074A - Method for testing primary subscriber interface circuit in a exchange system - Google Patents

Method for testing primary subscriber interface circuit in a exchange system Download PDF

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KR20010054074A
KR20010054074A KR1019990054707A KR19990054707A KR20010054074A KR 20010054074 A KR20010054074 A KR 20010054074A KR 1019990054707 A KR1019990054707 A KR 1019990054707A KR 19990054707 A KR19990054707 A KR 19990054707A KR 20010054074 A KR20010054074 A KR 20010054074A
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South Korea
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test
psi
dst
lttm
link
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KR1019990054707A
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Korean (ko)
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KR100606034B1 (en
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김영일
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윤종용
삼성전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/301—Circuit arrangements at the subscriber's side of the line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42314—Systems providing special services or facilities to subscribers in private branch exchanges

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

Abstract

PURPOSE: A method for testing a PSI(Primary Subscriber Interface) circuit in a switching system is provided to directly confirm the normality or abnormality of a PSI board in a switching system. CONSTITUTION: If a user inputs a PSI link circuit test instruction through an MMC block, the MMC block supplies this test request signal to an LTTM. Receiving the test request signal, the LTTM transfers the signal to a DST. The DST, receiving the test request signal, sends a switching function confirmation request instruction to a PSI link. The PSI link returns a switching OK or NOK result to the DST. The DST transfers the returned OK or NOK result to the LTTM. The LTTM outputs the transferred OK or NOK test result to the MMC block so that the user can confirm it.

Description

교환시스템에서 우선가입자인터페이스회로 시험방법{METHOD FOR TESTING PRIMARY SUBSCRIBER INTERFACE CIRCUIT IN A EXCHANGE SYSTEM}Preferred subscriber interface circuit test method in exchange system {METHOD FOR TESTING PRIMARY SUBSCRIBER INTERFACE CIRCUIT IN A EXCHANGE SYSTEM}

본 발명은 교환시스템에서 우선가입자 인터페이스 링크(Primary Subscriber Interface Link) 시험 시 우선가입자 인터페이스회로(Primary Subscriber Interface Circuit)만을 시험하여 보드상태를 정확하게 파악하는 우선가입자인터페이스회로 시험방법에 관한 것이다.The present invention relates to a method for testing a preferred subscriber interface circuit for accurately identifying a board state by testing only a primary subscriber interface circuit during a primary subscriber interface link test in an exchange system.

통상적으로 우선가입자 인터페이스(Primary Subscriber Interface)는 E1이나 T1으로 제공되는 사설교환(PABX)기능을 제공하기 위한 보드로, 30B+D 또는 23B+D의 형태로 교환기와 정합한다. 그런데 최근들어 디지털 가입자 인터페이스(예를들어BSI, BAMI, PSI)의 확장추세에 따라서 유지보수를 위해 각 보드의 상태를 파악하기위한 시험을 도입하고 있다.Typically, the Primary Subscriber Interface is a board for providing a private exchange (PABX) function provided by E1 or T1, and matches with an exchange in the form of 30B + D or 23B + D. Recently, according to the expansion trend of digital subscriber interfaces (e.g., BSI, BAMI, PSI), tests are being introduced to check the status of each board for maintenance.

도 1은 종래의 교환기의 루프백 시험을 위한 시스템 구성도이다.1 is a system configuration diagram for a loopback test of a conventional exchanger.

MMC블럭(10)은 시험을 위한 명령어를 입력한다. LTTM(12)은 상기MMC블럭(10)으로부터 입력한 시험명령어를 받아 가입자를 분류하여 디지털 가입자일 시 시험명령어를 DST(14)로 전송한다. DST(14)는 시험명령어를 받아 시험을 진행한다. LTEDA (16)은 상기 DST(14)로부터 시험을 진행하면 시험패턴을 발생하여 테스트버스를 통해 타임스위치(18)로 보낸다. 이때 시험패턴신호는 타임스위치(18)을 통해 PSI보드 (20)로 인가되며, PSI보드(20)에서 루프백되어 다시 타임스위치(18)와 테스트버스를 통해 LTEDA(16)로 리턴된다. 그러면 DST(14)에서는 처음보낸 테스트패턴과 리턴된 테스트패턴을 비교하여 이상유무를 판정한 후 MMC블럭(10)으로 시험결과를 출력한다.The MMC block 10 inputs a command for testing. The LTTM 12 receives the test command input from the MMC block 10 and classifies the subscriber and transmits the test command to the DST 14 when the digital subscriber is a digital subscriber. The DST 14 receives the test command and proceeds with the test. LTEDA 16 proceeds with the test from the DST 14 generates a test pattern and sends it to the time switch 18 via the test bus. At this time, the test pattern signal is applied to the PSI board 20 through the time switch 18, looped back from the PSI board 20 and returned to the LTEDA 16 through the time switch 18 and the test bus again. Then, the DST 14 compares the first test pattern and the returned test pattern, determines whether there is an abnormality, and then outputs the test result to the MMC block 10.

그러나 이와같은 우선가입자 인터페이스보드에서 루프백 시험하는 방법은 시험패턴발생기에서 타임스위치를 통해 PSI링크를 시험하게 되므로 PSI보드의 이상유무를 확인할 수 없었다.However, in this method of loopback testing in the subscriber interface board, the PSI link was tested through the time switch in the test pattern generator, so it was not possible to confirm the abnormality of the PSI board.

따라서 본 발명의 목적은 교환시스템에서 PSI보드의 이상유무를 바로 확인할 수 있는 우선가입자인터페이스회로 시험방법을 제공함에 있다Accordingly, an object of the present invention is to provide a test method for a preferred subscriber interface circuit that can immediately check whether PSI board is abnormal in an exchange system.

도 1은 종래의 교환기의 루프백 시험을 위한 시스템 구성도1 is a system configuration diagram for a loopback test of a conventional exchanger

도 2는 본 발명의 실시예에 따른 교환기의 우선가입자 인터페이스링크 시험을 위한 시스템 구성도2 is a system configuration diagram for the test of the subscriber interface link of the switch according to the embodiment of the present invention;

도 3은 본 발명의 실시예에 따른 PSI링크 시험을 위한 순서도3 is a flowchart for a PSI link test according to an embodiment of the present invention.

이하 본 발명에 따른 바람직한 실시 예를 첨부한 도면을 참조하여 상세히 설명한다. 우선 각 도면의 구성요소들에 참조부호를 부가함에 있어서, 동일한 구성요소들에 한해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 가지도록 하고 있음에 유의해야 한다. 그리고 본 발명을 설명함에 있어서, 관련된 공지 기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

도 2는 본 발명의 실시예에 따른 교환기의 우선가입자 인터페이스링크 시험을 위한 시스템 구성도이다.2 is a system configuration diagram for testing the subscriber interface link of the exchanger according to the embodiment of the present invention.

MMC블럭(10)은 시험을 위한 명령어를 입력한다. LTTM(12)은 상기 MMC블럭(10)으로부터 입력한 시험명령어를 받아 가입자를 분류하여 디지털 가입자일 시 시험명령어를 DST(14)로 전송한다. DST(14)는 시험명령어를 받아 시험을 진행하여 PSI링크의 이상유무를 판정한 후 MMC블럭(10)으로 시험결과를 출력한다. PSI보드(20)는 LTTM(14)로부터 시험명령어를 받아 스위칭 OK 또는 NOK리턴결과를 DST(14)로 전송한다.The MMC block 10 inputs a command for testing. The LTTM 12 receives the test command input from the MMC block 10 and classifies the subscriber and transmits the test command to the DST 14 when the digital subscriber is a digital subscriber. The DST 14 receives the test command, proceeds with the test, determines whether there is an abnormality in the PSI link, and then outputs the test result to the MMC block 10. The PSI board 20 receives a test command from the LTTM 14 and transmits a switching OK or NOK return result to the DST 14.

도 3은 본 발명의 실시예에 따른 PSI링크 시험을 위한 순서도이다.3 is a flowchart for a PSI link test according to an embodiment of the present invention.

상술한 도 2 내지 도 3을 참조하여 본 발명의 일 실시예의 동작을 상세히 설명한다.2 to 3 will be described in detail the operation of an embodiment of the present invention.

MMC블럭(10)에서 PSI 링크회로 시험명령을 입력하면 이 시험요구신호를 LTTM(12)로 인가한다. 이때 LTTM(12)에서는 DST(16)으로 시험요구신호를 보낸다.그러면 DST(16)에서는 PSI링크로 스위칭 기능 확인요구 명령을 보낸다. 그러면 PSI링크에서는 DST(16)로 스위칭 OK 또는 NOK결과를 리턴한다. 이때 DST(16)에서는 리턴된 OK 또는 NOK결과를 포맷에 맞추어 LTTM(12)로 전달한다. LTTM(12)는 이 포맷에 맞추어 전달된 OK 또는 NOK 시험결과를 MMC블럭(10)으로 출력하여 사용자가 확인할 수 있도록 한다.When the PSI link circuit test command is input from the MMC block 10, the test request signal is applied to the LTTM 12. At this time, the LTTM 12 sends a test request signal to the DST 16. The DST 16 then sends a switching function confirmation request command to the PSI link. The PSI link then returns a switching OK or NOK result to the DST 16. At this time, the DST 16 transmits the returned OK or NOK result to the LTTM 12 in accordance with the format. The LTTM 12 outputs the OK or NOK test results delivered in accordance with this format to the MMC block 10 for user confirmation.

상술한 바와 같이 본 발명은, 교환시스템에서 루프백 시험을 통해서 전체 루틴을 검사해야 할 필요없이 바로 PSI회로를 시험하여 PSI회로의 이상유무를 파악할 수 있는 이점이 있다.As described above, the present invention has an advantage that the PSI circuit can be immediately determined by examining the PSI circuit without having to check the entire routine through the loopback test in the exchange system.

Claims (2)

교환시스템에서 우선가입자 인터페이스회로 시험방법에 있어서,In the preferred subscriber interface circuit test method in the exchange system, MMC로부터 PSI 링크회로 시험명령을 입력할 시 시험요구신호를 LTTM로 전송하는 과정과,Transmitting a test request signal to the LTTM when a PSI link circuit test command is input from the MMC; 상기 LTTM에서 시험요구신호를 받아 DST로 시험요구신호를 보내는 과정과,상기 DST에서 시험요구신호를 받아 PSI링크로 스위칭 기능 확인요구 명령을 보내는 과정과,Receiving a test request signal from the LTTM and sending a test request signal to a DST; and receiving a test request signal from the DST and sending a switching function confirmation request command to a PSI link; 상기 DST로부터 스위칭 기능 확인요구명령을 받은 후 이상유무신호를 리턴하여 출력하는 과정으로 이루어짐을 특징으로 하는 교환시스템에서 우선가입자 인터페이스회로 시험방법.And receiving the switching function confirmation request command from the DST and returning an abnormal signal to output the priority subscriber interface circuit in the switching system. 제1항에 있어서, 상기 PSI이상유무신호 출력과정은,The method of claim 1, wherein the PSI abnormality signal output process is performed by: 상기 PSI링크로부터 스위칭 OK 또는 NOK결과를 상기 DST를 통해 리턴하는 과정과,Returning a switching OK or NOK result from the PSI link through the DST; 상기 리턴된 OK 또는 NOK결과를 포맷에 맞추어 상기 LTTM로 전달하는 과정과,Delivering the returned OK or NOK result to the LTTM in a format; 상기 LTTM에서 포맷에 맞게 전달된 스위칭 OK 또는 NOK 시험결과를 MMC로 출력하는 과정으로 이루어짐을 특징으로 하는 교환시스템에서 우선가입자 인터페이스회로 시험방법.And the switching OK or NOK test results transmitted according to the format of the LTTM to the MMC.
KR1019990054707A 1999-12-03 1999-12-03 Method for testing primary subscriber interface circuit in a exchange system KR100606034B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010078494A (en) * 1999-12-09 2001-08-21 박종섭 Method for modifying duplication state of space switch board in a exchange

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010078494A (en) * 1999-12-09 2001-08-21 박종섭 Method for modifying duplication state of space switch board in a exchange

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