JPH02161836A - Folding diagnosing system - Google Patents

Folding diagnosing system

Info

Publication number
JPH02161836A
JPH02161836A JP31690588A JP31690588A JPH02161836A JP H02161836 A JPH02161836 A JP H02161836A JP 31690588 A JP31690588 A JP 31690588A JP 31690588 A JP31690588 A JP 31690588A JP H02161836 A JPH02161836 A JP H02161836A
Authority
JP
Japan
Prior art keywords
diagnosis
communication
communication device
signal
test signal
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP31690588A
Other languages
Japanese (ja)
Inventor
Keiichi Koyama
啓一 小山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP31690588A priority Critical patent/JPH02161836A/en
Publication of JPH02161836A publication Critical patent/JPH02161836A/en
Pending legal-status Critical Current

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  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To prevent the disturbance given to the diagnosis from a communication equipment which performs no diagnosis and to enable only an operator of one of two communication equipments performing the diagnoses to carry out the due diagnosis by giving the information on other communication equipments sharing a communication line to each communication equipment and transmitting the control signals from one communication equipment performing the diagnosis to other communication equipments. CONSTITUTION:The test signal is received from a built-in or external test signal generator 7 of a communication equipment 1 and folded via a folding loop of a communication equipment 2. This folded signal is received by a built-in or external test signal detector 8 of the equipment 1. Meanwhile a circulation loop 10 is set to the communication equipments 3-5 and therefore no signal is sent to a transmission line 6 from the loop 10. Thus the diagnosis under execution is never disturbed. The propriety of the result of the diagnosis is decided from the comparison carried out between the received test signal and the transmitted signal. Thus it is possible to prevent the signals transmitted from the communication equipments performing no diagnosis with no operation of an operator and to perform a desired diagnosis.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、同一伝送路を共有する複数の通信装置から
成るシステムにおける、折返し診断方式%式% 〔従来の技術〕 最近、高速ディジタル専用回線を利用して、コンピュー
タ・電話などの音声・ファクシミリ、画像などのメディ
アを統合してネットワーク構成にし、企業内通信システ
ムを構築することが行なわれている。
[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a return diagnosis method % type % in a system consisting of a plurality of communication devices sharing the same transmission path. [Prior Art] Recently, high-speed digital dedicated lines Using this, media such as voice, facsimile, and images from computers, telephones, etc. are integrated into a network configuration, and an in-house communication system is constructed.

この構築にあたって、ディジタル専用回線と端末機器と
の間およびディジタル専用回線間を結ぶディジタル多重
化装置が必要となる。このディジタル多重化装置は、主
に端末信号をビット多重する部分L T D M (L
ocal Time Division ′MVlti
plexer)と、複数のLTDMや回線からの信号を
高速に、対地ごとに信号の切換を行い多重化する部分M
BX(Multiplex Brarch Excha
rger )とから構成されている。
In constructing this, a digital multiplexing device is required to connect the digital private line and the terminal equipment and between the digital private lines. This digital multiplexing device mainly has a part L TDM (L
ocal Time Division 'MVlti
plexer) and a part M that switches and multiplexes signals from multiple LTDMs and lines at high speed for each destination.
BX (Multiplex Brach Exchange)
rger).

第5図はディジタル回線とディジタル多重化装置とを組
合せたシステム構成を示すものである。
FIG. 5 shows a system configuration combining a digital line and a digital multiplexer.

図において、(1) (2) (3) (4) (5)
は上述したディジタル多重化装置を示すものであるが、
この発明ではシステムの診断という目的から、この多重
化装置は通他装置としての機能があればよいので、ここ
では通信装置と称す。(6)は上記通信装置(1)〜(
5)が共有するディジタル多重伝送路である。
In the figure, (1) (2) (3) (4) (5)
shows the above-mentioned digital multiplexing device,
In the present invention, for the purpose of diagnosing the system, the multiplexing device only needs to have the function of a communication device, so it will be referred to as a communication device here. (6) is the communication device (1) to (
5) is a shared digital multiplex transmission path.

第6図は、上記システムにおける伝送路の診断方式を示
す。(1)〜(5〕は通信装置、(6)は伝送路、(7
)は試験信号発生器、(8)は試験信号検出器である。
FIG. 6 shows a method for diagnosing the transmission line in the above system. (1) to (5) are communication devices, (6) is a transmission path, (7
) is a test signal generator, and (8) is a test signal detector.

第5図に示すシステムにおいて、任意の一組の通信装置
間で、その通信装置を含めた伝送路の診断を行う方式を
第6図で説明する。
In the system shown in FIG. 5, a method for diagnosing a transmission path including the communication devices between an arbitrary set of communication devices will be described with reference to FIG.

第6図において、通信装置(1)、(2)間で通信装置
を含めた伝送路(6)の診断を行うには、通信装置(2
)内で通信装置(1)方向に折返る折返しループ(9)
を設定しておき、通信装置(1)内蔵又は外付けの試験
信号発生器(7)より試験信号を送出する。この試験信
号は、伝送路(6)に送出され通信装置(2)の折返し
ループ(9)により再び通信装置(1)に送り返されて
くる。
In FIG. 6, in order to diagnose the transmission path (6) including the communication device between the communication devices (1) and (2), the communication device (2) must be
) in the direction of the communication device (1) (9)
is set in advance, and a test signal is sent from the test signal generator (7) built in or external to the communication device (1). This test signal is sent out to the transmission path (6) and sent back to the communication device (1) through the return loop (9) of the communication device (2).

ここで通信装R(1)に内蔵又は外付けの試験信号検出
器(8)で、試験信号を受信し、送出信号と比較しその
結果によって通信装置を含む伝送路の良否判定を行なう
Here, a test signal detector (8) built in or external to the communication device R (1) receives the test signal, compares it with the transmitted signal, and determines the quality of the transmission line including the communication device based on the result.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

この診断方式は、第5図のシステムが、伝送路(6)の
同一チャネルを通信装置(1)〜(5)で共有している
ため、第6図の診断の際には、通信装置(3)、 (4
)・(5)から伝送路(6)の同一チャネルに、信号を
出さないことが前提である。即ち、通信装置(1)、(
2)間で診断実施中に、通信装置(3) 、 (4) 
、 (5)のいずれかから伝送路(6)に信号が送出さ
れると、診断用の試験信号が乱され、本来診断結果が良
判定される場合にも不良判定されてしまうという問題が
あった。
In this diagnostic method, since the system shown in FIG. 5 shares the same channel of the transmission path (6) with the communication devices (1) to (5), when diagnosing the system shown in FIG. 3), (4
) and (5) to the same channel of the transmission path (6). That is, the communication device (1), (
2) During diagnosis between communication devices (3) and (4)
, (5), when a signal is sent to the transmission line (6), the test signal for diagnosis is disturbed, and there is a problem that the diagnosis result is judged to be defective even when it should be judged as good. Ta.

このため、従来は診断実施の際に、操作員が全ての通信
装置で、その動作を停止させたり、伝送路との接続を切
断する等の操作を行なう必要があった。
For this reason, conventionally, when carrying out a diagnosis, an operator had to perform operations such as stopping the operation of all communication devices or disconnecting them from transmission lines.

この発明は、このような問題を解決するためになされた
もので、診断に対して影響を与える他装置を操作員が直
接操作することなく、診断への他装置からの影響を防ぐ
方式を得ることを目的とする。
This invention was made to solve such problems, and provides a method for preventing the influence of other devices on diagnosis without the operator directly operating the other devices that affect diagnosis. The purpose is to

〔課題を解決するための手段〕[Means to solve the problem]

この発明の診断方式は、各通信装置内に同一伝送路を共
有する他の通信装置を識別する情報、例えば装置アドレ
スを記憶するメモリ手段を有し、診断を実施する一対向
の通信装置の一方から、診断を行なう通信装置に対して
は伝送路から入ってきた信号をそのまま折り返す制御信
号を、また診断を行れない通信装置に対しては伝送路に
信号を出さないような制御信号を、上記識別情報と共に
送出することにより、診断を実施するようにしたもので
ある。
The diagnosis method of the present invention includes memory means for storing information identifying other communication devices sharing the same transmission path, such as device addresses, in each communication device, and one of the opposing communication devices to perform diagnosis. Therefore, for communication devices that perform diagnosis, a control signal is sent that returns the signal that comes in from the transmission path, and for communication devices that cannot perform diagnosis, a control signal that does not output a signal to the transmission path is sent. Diagnosis is performed by sending the information together with the identification information.

〔作用〕[Effect]

通信装置内のメモリを参照し、診断を行なう一方の通信
装置から他の通信装置に通信装置の識別情報と併せて制
御信号を送出することにより、操作員の操作によること
なく、診断を行わない通信装置からの信号の送出を抑え
、目的の診断を実施することができる。
By referring to the memory in the communication device and sending a control signal from one communication device to the other communication device along with the identification information of the communication device, diagnosis is not performed without operator intervention. It is possible to perform the desired diagnosis by suppressing the transmission of signals from the communication device.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を第1図〜第4図で説明する
。第1図および第2図において、(1)〜(5)は通信
装置で、各通信装置は装置番号(アドレス)で識別され
ている。(6)は伝送路、(7)は試験信号発生器、(
8)は試験信号検出器で、これらの構成は第6図に示す
従来構成と同一である。(9)は折り返しループ、00
は循環ループ、αυは通信装置(1)内に有するメモリ
で、このメモリには第2図に詳細に示すように伝送路(
6)の同一チャネルを共有している通信装置(2)〜(
5)のアドレスが書き込まれている。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In FIGS. 1 and 2, (1) to (5) are communication devices, and each communication device is identified by a device number (address). (6) is the transmission line, (7) is the test signal generator, (
8) is a test signal detector whose configuration is the same as the conventional configuration shown in FIG. (9) is a folded loop, 00
is a circular loop, αυ is a memory included in the communication device (1), and this memory has a transmission path (
Communication devices (2) to (6) sharing the same channel
5) address is written.

(ロ)はオペレータからのコマンドにより診断を行なう
通信装@(2)および診断を行なわない通信装置(3)
(4) (5)にそれぞれ異なった制御信号を送出する
ための演算処理部で、通信装!(1)に内蔵されている
ものが利用できる。なお、図示は省略しているが、他の
通信装置(2ン〜(5月ども通信装置(1)と同様なメ
モリおよび演算処理部を有しているものである。
(b) Communication equipment that performs diagnosis based on commands from the operator @ (2) and communication equipment that does not perform diagnosis (3)
(4) A calculation processing unit for sending out different control signals to (5), and a communication device! The ones built in (1) can be used. Although not shown in the drawings, the other communication devices (2-1) have the same memory and arithmetic processing unit as the communication device (1).

第1図において、通信装置(1) 、 (2)間で通信
装置を含めた伝送路(6)の診断を行う場合の制御方法
を第3図および第4図で説明する。オペレータが、通信
装置(1)のマンマシーンインターフェース部より、通
信装置(2)との間の折返し診断を実行するコマントを
投入すると、通信装置(1)の演算処理部(2)で、通
信装置(2)に対しては折返しループ(9)を設定、伝
送路(6)を共有している装置(1) 、 (2)以外
はメモリαυを参照して通信装ff1(3)、 (4)
、 (5)であ゛ることを判断し、これらには循環ルー
プα0を設定すればよいことを判断し、通信装置(2)
〜(5)にループ設定用コマンドを送出する。(第4図
5tepl→このコマンドは第4図に示すように、制御
すべき装置番号(アドレス)とその制御内容(折返しル
ープ(9)か循環ループ00、またはその解除かを識別
するコード)を示す制御信号から成っている。
A control method when diagnosing a transmission path (6) including the communication device between the communication devices (1) and (2) in FIG. 1 will be explained with reference to FIGS. 3 and 4. When an operator inputs a command from the man-machine interface section of the communication device (1) to execute a return diagnosis with the communication device (2), the arithmetic processing section (2) of the communication device (1) For (2), a return loop (9) is set, and for devices other than devices (1) and (2) that share the transmission path (6), communication devices ff1 (3), (4 )
, (5), it is determined that it is sufficient to set a circulation loop α0 for these, and the communication device (2)
A loop setting command is sent to (5). (Fig. 4 5 tepl → This command, as shown in Fig. 4, specifies the device number (address) to be controlled and its control details (a code that identifies whether it is a return loop (9), a circulation loop 00, or its release). It consists of control signals to indicate.

コマンドが到達した装置では、そのアドレスが自装置の
アドレスと一致すれば、その制御コードから制御すべき
内容を判断し自装置内で折返しループ(9)または循環
ループ00の設定を行う。
When the command reaches the device, if the address matches the address of the device itself, it determines the content to be controlled from the control code and sets a return loop (9) or circulation loop 00 within the device itself.

ここで折返しループ(9)とは、伝送路(6)から入っ
てきた信号を装置内でそのまま送り返すことができる回
路構成である。
Here, the return loop (9) is a circuit configuration that can send back a signal that has entered from the transmission line (6) as it is within the device.

循環ループα0とは、装置から伝送路に出ていく信号を
伝送路に送り出さずに、自装置の信号受信部へ入れてし
まう回路構成である。この場合、伝送路側の出口の信号
レベルは他の装置に影響を与えないようにハイレベルに
一定に保持される。
The circulation loop α0 is a circuit configuration in which a signal going out from the device to the transmission path is input into the signal receiving section of the device itself without being sent out to the transmission path. In this case, the signal level at the exit on the transmission line side is kept constant at a high level so as not to affect other devices.

この後、通信装置(1)の内蔵又は外付けの試験信号発
生器(7)より試験信号を送出し、通信装置(2)の折
返しループで折返されてきた信号を、通信装置(1)の
内蔵又は外付けの試験信号検出器(8)で受信する。こ
の間は、通信装置(3)〜(5)は第1図の循環ループ
QQが設定されているため、これらから伝送路(6)に
は信号が送出されず、実行されている診断には妨害を与
えることはない。
After that, a test signal is sent from the test signal generator (7) built in or external to the communication device (1), and the signal returned by the return loop of the communication device (2) is transmitted to the communication device (1). Received by built-in or external test signal detector (8). During this time, the communication devices (3) to (5) are set up in the circular loop QQ shown in Figure 1, so no signals are sent from them to the transmission path (6), which interferes with the diagnosis being performed. will not be given.

受信試験信号と送出信号を比較することにより診断結果
の良否判定を行なう。(第4図5tep5)その後オペ
レータが通信装置(1)のマンマシーンインターフェー
ス部より診断の解除を実行するコマンドを投入すると、
通信装置(1)aの演算処理部(6)で、通信装置(2
)の折返しループ(9)を解除する制御信号を、通信装
!(3)〜(5)の循環ループθ0を解除する制御信号
を通信装置(1)より各通信装置(2)〜(5)に送出
する。(第4図 5teps〜9)以上で、通信装置(
1)〜(2)間の伝送路の診断が終了し、システムは通
常運用状態に復旧する@多通信装置は、図示を省略して
いるが通信装置(1)と同内容のメモリを有しているの
で、他の通信装置間でも診断も上記方法で可能となる。
The quality of the diagnosis result is determined by comparing the received test signal and the transmitted signal. (Fig. 4, step 5) After that, when the operator inputs a command to cancel the diagnosis from the man-machine interface section of the communication device (1),
The arithmetic processing unit (6) of the communication device (1) a, the communication device (2)
) control signal to cancel the return loop (9) of the communication device! A control signal for canceling the circulation loop θ0 of (3) to (5) is sent from the communication device (1) to each communication device (2) to (5). (Figure 4 5 teps ~ 9) With the above, the communication device (
Diagnosis of the transmission path between 1) and (2) is completed, and the system is restored to normal operating state.@The multi-communication device has a memory with the same contents as the communication device (1), although not shown. Therefore, diagnosis is also possible between other communication devices using the above method.

〔発明の効果〕〔Effect of the invention〕

この発明の診断方式は、各通信装置に伝送路を共有する
他の通信装置の情報をもち、診断を行う一つの通信装置
より他の通信装置を制御する信号を送出する方式とした
ので、診断を行わない通信装置からの診断への妨害を防
止し、診断の実行は診断を行う通信装置の一方の操作員
のみで可能になるという効果がある。
In the diagnosis method of the present invention, each communication device has information on other communication devices that share the transmission path, and one communication device undergoing diagnosis sends out a signal to control the other communication device. This has the effect of preventing interference with diagnosis from a communication device that does not perform diagnosis, and that diagnosis can be executed by only one operator of the communication device that performs diagnosis.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明による診断方式を示す説明図、第2図
はこの発明に使用されるメモリの内容を示す図、第3図
、第4図はこの発明の診断動作を示す図、第5図はこの
発明が適用されるシステム構成を示す図、第6図は従来
の診断方式の説明図である。 図において、(1)〜(5)は通信装置、(6)は伝送
路、(7)は試験信号発生器、(8月よ試験信号検出器
、(9)は折り返しループ、a旧よ循環ループ、(ロ)
はメモリ、@は演算処理部である。
FIG. 1 is an explanatory diagram showing the diagnostic method according to the present invention, FIG. 2 is a diagram showing the contents of the memory used in the present invention, FIGS. 3 and 4 are diagrams showing the diagnostic operation of the present invention, and FIG. The figure shows a system configuration to which the present invention is applied, and FIG. 6 is an explanatory diagram of a conventional diagnostic method. In the figure, (1) to (5) are communication devices, (6) is a transmission line, (7) is a test signal generator, (August is a test signal detector, (9) is a return loop, and (a) is an old circulation loop, (b)
is the memory, and @ is the arithmetic processing unit.

Claims (1)

【特許請求の範囲】[Claims] 一つの伝送路を共有する複数の通信装置から成るシステ
ムにおいて、上記通信装置内に同一伝送路を共有する他
の通信装置を識別する情報を記憶したメモリ手段を設け
、診断を実施する一対向の通信装置の一方から、診断を
実施する他の通信装置に対してはその識別情報と伝送路
から入ってきた信号を装置内でそのまま折り返す制御信
号とを送出すると共に、診断を実施しない通信装置に対
しては、その識別情報と上記伝送路に信号を出さないよ
うな制御信号とを送出することを特徴とする折返し診断
方式。
In a system consisting of a plurality of communication devices sharing one transmission path, a memory means storing information for identifying other communication devices sharing the same transmission path is provided in the communication device, and one opposing device for performing diagnosis is provided. One of the communication devices sends identification information to the other communication device that performs the diagnosis and a control signal that returns the signal that came in from the transmission path as it is within the device, and sends a control signal to the other communication device that does not perform the diagnosis. A return diagnosis method is characterized in that the identification information and a control signal for not outputting a signal to the transmission path are sent to the transmission line.
JP31690588A 1988-12-14 1988-12-14 Folding diagnosing system Pending JPH02161836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31690588A JPH02161836A (en) 1988-12-14 1988-12-14 Folding diagnosing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31690588A JPH02161836A (en) 1988-12-14 1988-12-14 Folding diagnosing system

Publications (1)

Publication Number Publication Date
JPH02161836A true JPH02161836A (en) 1990-06-21

Family

ID=18082219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31690588A Pending JPH02161836A (en) 1988-12-14 1988-12-14 Folding diagnosing system

Country Status (1)

Country Link
JP (1) JPH02161836A (en)

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