JP2011182277A - Transmission device and method for determining location of the failure - Google Patents
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本発明は、伝送装置及びその障害発生箇所特定方法に関する。本発明は、例えば、波長分割多重（ＷＤＭ：Wavelength Division Multiplex）方式の伝送システム等において、対向する伝送装置の障害発生箇所の特定に適用することができる。 The present invention relates to a transmission apparatus and a method for identifying a failure location thereof. The present invention can be applied to, for example, identification of a failure occurrence point of an opposing transmission apparatus in a wavelength division multiplexing (WDM) transmission system or the like.
従来の波長分割多重方式等の伝送装置の構成例を図５に示す。図５において、５−１はＡ局の伝送装置、５−２はＢ局の伝送装置である。Ａ局の伝送装置５−１は、インタフェース盤（ＩＦ＃１〜８）５−１１、合成分岐増幅部（ＭＸＡＭＰＡ）５−１２、前置増幅部（ＰｒｅＡＭＰＡ）５−１３、監視制御盤（ＣＯＮＴ）５−１４を備える。 A configuration example of a conventional transmission apparatus such as a wavelength division multiplexing system is shown in FIG. In FIG. 5, reference numeral 5-1 denotes a transmission apparatus for station A, and 5-2 denotes a transmission apparatus for station B. The transmission apparatus 5-1 of the A station includes an interface panel (IF # 1 to 8) 5-11, a combined branch amplification unit (MXAMPA) 5-12, a preamplification unit (PreAMPA) 5-13, and a monitoring control panel (CONT). ) 5-14.
Ｂ局の伝送装置５−２も同様に、インタフェース盤（ＩＦ＃９〜１６）５−２１、合成分岐増幅部（ＭＸＡＭＰＢ）５−２２、前置増幅部（ＰｒｅＡＭＰＢ）５−２３、監視制御盤（ＣＯＮＴ）５−２４を備える。Ａ局の伝送装置５−１とＢ局の伝送装置５−２とは、光ファイバー等による双方向の伝送路（３）を介して相互に接続され、それぞれ、各インタフェース盤５−１１，５−２１から入力される信号を、伝送路（３）を介して相手側の伝送装置に伝送する。 Similarly, the transmission apparatus 5-2 of the B station includes an interface board (IF # 9 to 16) 5-21, a combined branch amplification unit (MXAMPB) 5-22, a preamplification unit (PreAMPB) 5-23, and a supervisory control board. (CONT) 5-24. The station A transmission apparatus 5-1 and the station B transmission apparatus 5-2 are connected to each other via a bidirectional transmission path (3) using an optical fiber or the like. The signal input from 21 is transmitted to the transmission apparatus on the other side via the transmission path (3).
Ａ局の伝送装置５−１の合成分岐増幅部（ＭＸＡＭＰＡ）５−１２は、自装置の各インタフェース盤（ＩＦ＃１〜８）５−１１から入力される信号を合成して増幅して、伝送路（１）を介して前置増幅部（ＰｒｅＡＭＰＡ）５−１３に出力し、また、該前置増幅部（ＰｒｅＡＭＰＡ）５−１３から伝送路（２）を介して入力される他装置からの信号を分岐して各インタフェース盤（ＩＦ＃１〜８）５−１１に出力する。 The synthesis branch amplification unit (MXAMPA) 5-12 of the transmission apparatus 5-1 of the A station synthesizes and amplifies signals input from the respective interface boards (IF # 1 to 8) 5-11 of the own apparatus, Output from the preamplifier (PreAMPA) 5-13 via the transmission line (1), and from other devices input from the preamplifier (PreAMPA) 5-13 via the transmission line (2) Is branched and output to each interface board (IF # 1-8) 5-11.
Ａ局の伝送装置５−１の前置増幅部（ＰｒｅＡＭＰＡ）５−１３は、自装置の合成分岐増幅部（ＭＸＡＭＰＡ）５−１２から伝送路（１）を介して出力される信号を、伝送路（３）を介してＢ局の伝送装置５−２へ送出し、該伝送路（３）を介してＢ局の伝送装置５−２から入力される信号を増幅し、伝送路（２）を介して自装置の合成分岐増幅部（ＭＸＡＭＰＡ）５−１２に出力する。 The preamplifier (PreAMPA) 5-13 of the transmission apparatus 5-1 of the A station transmits a signal output from the combined branch amplification section (MXAMPA) 5-12 of its own apparatus via the transmission path (1). The signal is transmitted to the transmission apparatus 5-2 of the B station via the path (3), the signal input from the transmission apparatus 5-2 of the B station is amplified via the transmission path (3), and the transmission path (2) To the combined branch amplification unit (MXAMPA) 5-12 of the own device.
Ｂ局の伝送装置５−２の前置増幅部（ＰｒｅＡＭＰＢ）５−２３も同様に、Ａ局の伝送装置５−１から伝送路（３）を介して入力される信号を増幅し、伝送路（４）を介して自装置の合成分岐増幅部（ＭＸＡＭＰＢ）５−２２に出力し、自装置の合成分岐増幅部（ＭＸＡＭＰＢ）５−２２から伝送路（５）を介して出力される信号を、伝送路（３）を介してＡ局の伝送装置５−１へ送出する。 Similarly, the preamplifier (PreAMPB) 5-23 of the transmission apparatus 5-2 of the B station amplifies the signal input from the transmission apparatus 5-1 of the A station via the transmission path (3), and transmits the transmission path. (4) is output to the synthesis branch amplification unit (MXAMPB) 5-22 of the own device, and the signal output from the synthesis branch amplification unit (MXAMPB) 5-22 of the own device via the transmission path (5) Then, the data is sent to the transmission device 5-1 of the station A via the transmission path (3).
また、Ｂ局の伝送装置５−２の合成分岐増幅部（ＭＸＡＭＰＢ）５−２２も同様に、自装置の前置増幅部（ＰｒｅＡＭＰＢ）５−２３から伝送路（４）を介して入力される他装置からの信号を分岐して、各インタフェース盤（ＩＦ＃９〜１６）５−２１に出力し、該インタフェース盤（ＩＦ＃９〜１６）５−２１から入力される信号を合成して増幅し、伝送路（５）を介して前置増幅部（ＰｒｅＡＭＰＢ）５−２３に出力する。 Similarly, the combined branch amplification unit (MXAMPB) 5-22 of the transmission device 5-2 of the B station is also input from the preamplification unit (PreAMPB) 5-23 of its own device via the transmission line (4). A signal from another device is branched and output to each interface board (IF # 9-16) 5-21, and a signal input from the interface board (IF # 9-16) 5-21 is synthesized and amplified. Then, the data is output to the preamplifier (PreAMPB) 5-23 through the transmission line (5).
上述の伝送路（１）〜（６）の何れの箇所で通信断の状態となると、Ａ局の伝送装置５−１とＢ局の伝送装置５−２との間の通信が遮断される。波長分割多重方式等の伝送装置５−１，５−２では、通信断の発生を検出すると、インタフェース盤５−１１，５−２１、合成分岐増幅部５−１２，５−２２、前置増幅部５−１３，５−２３の各出力信号の送出を停止する。 If communication is interrupted at any point in the transmission paths (1) to (6), communication between the transmission device 5-1 at station A and the transmission device 5-2 at station B is interrupted. In the transmission devices 5-1 and 5-2 such as wavelength division multiplexing, when the occurrence of communication interruption is detected, the interface boards 5-11 and 5-21, the combined branch amplification units 5-12 and 5-22, and the preamplifier Transmission of the output signals of the units 5-13 and 5-23 is stopped.
伝送装置５−１，５−２のインタフェース盤５−１１，５−２１は、通信断の発生時に出力信号の送出を停止するが、監視制御盤（ＣＯＮＴ）５−１４，５−２４から得られる一定タイミングのパルス信号を用い、障害が復旧するまでリスタートパルスを送信する。 The interface boards 5-11 and 5-21 of the transmission apparatuses 5-1 and 5-2 stop sending output signals when a communication interruption occurs, but are obtained from the monitor control boards (CONT) 5-14 and 5-24. A restart pulse is transmitted until the failure is recovered by using a pulse signal at a certain timing.
このリスタートパルスは、伝送路（１）〜（６）等の通信断が復旧されれば、合成分岐増幅部５−１２，５−２２、前置増幅部５−１３，５−２３、及び対向する伝送装置のインタフェース盤で受信される。このリスタートパルスの受信により、障害の復旧が確認される。この動作は、回線自動復旧機能（ＡＲＣ機能）と称されている。 If the communication interruption of the transmission lines (1) to (6) is restored, the restart pulse is combined with the synthesis branch amplification units 5-12 and 5-22, the preamplification units 5-13 and 5-23, and Received by the interface board of the opposite transmission apparatus. The restoration of the failure is confirmed by receiving this restart pulse. This operation is called a line automatic recovery function (ARC function).
図６にリスタートパルスの発生の動作例を示す。同図に示すように、ネットワーク断（通信断）が発生すると（６−１）、前置増幅部（ＰｒｅＡＭＰ）５−１３，５−２３で入力断が検出され、前置増幅部（ＰｒｅＡＭＰ）５−１３，５−２３は、その出力を停止（シャットダウン）する（６−２）。 FIG. 6 shows an operation example of restart pulse generation. As shown in the figure, when a network disconnection (communication disconnection) occurs (6-1), an input disconnection is detected by the preamplifiers (PreAMP) 5-13 and 5-23, and the preamplifier (PreAMP) 5-13 and 5-23 stop (shut down) the output (6-2).
前置増幅部（ＰｒｅＡＭＰ）５−１３，５−２３の出力停止により、インタフェース盤５−１１，５−２１は、ネットワーク側（伝送路（３）の方向）への送信信号の出力を停止する（６−３）。これにより、合成分岐増幅部（ＭＸＡＭＰＢ）５−１２，５−２２で入力断が発生し、合成分岐増幅部（ＭＸＡＭＰＢ）５−１２，５−２２は、その出力を停止（シャットダウン）する（６−４）。 By stopping the output of the preamplifiers (PreAMP) 5-13 and 5-23, the interface boards 5-11 and 5-21 stop outputting the transmission signal to the network side (direction of the transmission path (3)). (6-3). As a result, an input interruption occurs in the synthesis branch amplification units (MXAMPB) 5-12 and 5-22, and the synthesis branch amplification units (MXAMPB) 5-12 and 5-22 stop (shut down) their outputs (6). -4).
この状態で、インタフェース盤５−１１，５−２１は、監視制御盤（ＣＯＮＴ）５−１４，５−２４からの一定タイミングのパルス信号を用いて、障害復旧の確認のための信号（リスタートパルス）を出力する（６−５）。ネットワーク断となった障害箇所が復旧すると、対向伝送装置でリスタートパルスが受信され、該リスタートパルスの受信により、インタフェース盤、合成分岐増幅部、前置増幅部の出力信号の送出停止（シャットダウン）を解除する（６−６）。これにより、伝送システムが復旧する（６−７）。 In this state, the interface boards 5-11 and 5-21 use a pulse signal of a fixed timing from the monitor control boards (CONT) 5-14 and 5-24 to confirm a signal for recovery from the failure (restart). Pulse) is output (6-5). When the network failure is recovered, the opposite transmission device receives a restart pulse. Upon receipt of the restart pulse, output of the output signals from the interface panel, synthesis branch amplifier, and preamplifier is stopped (shutdown). ) Is released (6-6). As a result, the transmission system is restored (6-7).
伝送装置の故障点の特定に必要な監視情報を相手側の伝送装置に通知する技術は、例えば、下記の特許文献１に記載されている。この文献に記載された技術では、光伝送路内に配置される光増幅器の利得帯域内で主信号光の波長とは異なる波長で監視制御信号を生成し、所定の時間長及び時間間隔でバースト的に送信する監視制御信号と主信号とを波長多重して光伝送路を介して転送する。該監視制御信号の転送に際して、該監視制御信号の時間長を光増幅器の過渡応答の利得飽和時間より短く設定し、主信号に極力影響を与えずに転送する。
A technique for notifying the counterpart transmission apparatus of monitoring information necessary for specifying a failure point of the transmission apparatus is described in, for example,
上述したように、従来の伝送装置では伝送路（１）〜（６）の何れの箇所で切断状態となると、Ａ局の伝送装置５−１とＢ局の伝送装置５−２との間で通信断の状態となるが、何れの箇所で障害が発生しているのかを特定することは困難であった。特に、伝送装置５−１又は５−２が、保守者が容易に赴くことができないような場所に設置されている場合、通信障害の発生時に一方の伝送装置の設置場所に赴き、その伝送装置に障害原因が発見されなかった場合は、更に他方の伝送装置の設置場所に赴き、或いは同時に双方の伝送装置の設置場所に赴いて、障害発生箇所を特定しなければならず、障害発生箇所の特定作業に多くの労力が費やされていた。本発明は、対向伝送装置との間で通信断が発生したとき、自装置又は対向伝送装置の伝送路或いは自装置と対向伝送装置との間の伝送路の何れに障害が発生しているのかを特定可能にする。 As described above, in the conventional transmission apparatus, if any of the transmission paths (1) to (6) is disconnected, the transmission apparatus 5-1 at station A and the transmission apparatus 5-2 at station B are disconnected. Although the communication is cut off, it is difficult to identify the location where the failure has occurred. In particular, when the transmission device 5-1 or 5-2 is installed in a place where a maintenance person cannot easily go, the transmission device goes to the installation location of one transmission device when a communication failure occurs. If the cause of the failure is not found, the user must go to the installation site of the other transmission device, or go to the installation site of both transmission devices at the same time to identify the location of the failure. Much effort was spent on specific tasks. In the present invention, when a communication disconnection occurs between the opposite transmission device, a failure has occurred in the transmission line of the own device or the opposite transmission device or the transmission line between the own device and the opposite transmission device. Can be specified.
本発明の伝送装置は、インタフェース盤に入力される送信信号を、前置増幅部を経由し、伝送路を介して対向伝送装置に送信し、かつ、前記対向伝送装置から送信され、前記伝送路を介して受信される受信信号を、前記前置増幅部を経由して前記インタフェース盤から出力する伝送装置において、前記対向伝送装置との間で通信断の障害発生の時に該障害が復旧するまで、前記インタフェース盤から前記対向伝送装置に向けてリスタートパルスを送信するリスタートパルス送信手段と、前記対向伝送装置から送信された前記リスタートパルスが自装置の前記前置増幅器で受信されたことを自装置の監視制御盤に通知する第１の通知手段と、前記対向伝送装置から送信された前記リスタートパルスが自装置の前記インタフェース盤で受信されたことを自装置の監視制御盤に通知する第２の通知手段と、前記第１及び第２の通知手段で通知されたリスタートパルスの受信結果を、前記伝送路の経路と異なる監視チャネルで前記対向伝送装置に通知する監視チャネル盤と、前記第１及び第２の通知手段で通知されたリスタートパルスの受信結果、及び前記監視チャネル盤を介して通知された前記対向伝送装置におけるリスタートパルスの受信結果を基に、自装置若しくは前記対向伝送装置における前記前置増幅器と前記インタフェース盤との間の伝送路、又は前記対向伝送装置との間の伝送路の何れに障害が発生したかを特定する障害箇所特定手段と、を備えたものである。 The transmission apparatus of the present invention transmits a transmission signal input to the interface board to a counter transmission apparatus via a transmission path via a preamplifier, and is transmitted from the counter transmission apparatus, and the transmission path In the transmission device that outputs the reception signal received via the preamplifier via the preamplifier, until the failure is recovered when a failure occurs in communication with the opposite transmission device A restart pulse transmitting means for transmitting a restart pulse from the interface panel to the opposite transmission device; and the restart pulse transmitted from the opposite transmission device is received by the preamplifier of the own device. And a restart notification transmitted from the opposite transmission device is received by the interface board of the own device. The second notification means for notifying the monitoring control panel of the device itself, and the reception result of the restart pulse notified by the first and second notification means on the monitoring channel different from the path of the transmission path The monitoring channel board to notify the opposite transmission apparatus, the reception result of the restart pulse notified by the first and second notification means, and the restart pulse in the opposite transmission apparatus notified via the monitoring channel board On the basis of the reception result, whether a failure has occurred in the transmission path between the preamplifier and the interface board in the own apparatus or the counter transmission apparatus, or the transmission path between the counter transmission apparatus. And a fault location specifying means to be specified.
また、本発明の障害発生箇所特定方法は、前述の伝送装置の障害発生箇所特定方法において、前記対向伝送装置との間で通信断の障害発生の時に該障害が復旧するまで、前記インタフェース盤から前記対向伝送装置に向けてリスタートパルスを送信するリスタートパルス送信ステップと、前記対向伝送装置から送信された前記リスタートパルスが自装置の前記前置増幅器で受信されたことを自装置の監視制御盤に通知する第１の通知ステップと、前記対向伝送装置から送信された前記リスタートパルスが自装置の前記インタフェース盤で受信されたことを自装置の監視制御盤に通知する第２の通知ステップと、前記第１及び第２の通知ステップで通知されたリスタートパルスの受信結果を、前記伝送路の経路と異なる監視チャネルで前記対向伝送装置に通知する第３の通知ステップと、前記第１及び第２の通知ステップで通知されたリスタートパルスの受信結果、及び前記第３の通知ステップで通知された前記対向伝送装置におけるリスタートパルスの受信結果を基に、自装置若しくは前記対向伝送装置における前記前置増幅器と前記インタフェース盤との間の伝送路、又は前記対向伝送装置との間の伝送路の何れに障害が発生したかを特定する障害箇所特定ステップと、を含むものである。 Also, the failure location identification method of the present invention is the above-described failure location identification method of the transmission device, from the interface panel until the failure is recovered when a failure occurs in communication with the opposite transmission device. A restart pulse transmitting step for transmitting a restart pulse toward the opposite transmission device, and monitoring of the own device that the restart pulse transmitted from the opposite transmission device is received by the preamplifier of the own device A first notification step for notifying the control panel; and a second notification for notifying the monitoring control panel of the own device that the restart pulse transmitted from the opposite transmission device has been received by the interface board of the own device. And the reception result of the restart pulse notified in the first notification step and the second notification step in the monitoring channel different from the path of the transmission path. A third notification step for notifying the transmission device, a reception result of the restart pulse notified in the first and second notification steps, and a restart in the opposite transmission device notified in the third notification step Based on the reception result of the pulse, whether a failure has occurred in the transmission path between the preamplifier and the interface board in the own apparatus or the counter transmission apparatus, or the transmission path between the counter transmission apparatus And a fault location specifying step for specifying.
本発明は、対向伝送装置との間で通信断が発生したとき、回線自動復旧機能（ＡＲＣ機能）によるリスタートパルスの受信状況を、主信号の伝送路とは別の監視チャネルを用いて対向伝送装置に通知し、自装置及び対向伝送装置におけるリスタートパルスの受信状況を基に、自装置又は対向伝送装置の伝送路或いは自装置と対向伝送装置との間の伝送路の何れに障害が発生しているのかを特定することが可能となる。 In the present invention, when communication with the opposite transmission apparatus is interrupted, the reception status of the restart pulse by the automatic line recovery function (ARC function) is detected using a monitoring channel different from the main signal transmission line. Notify the transmission device, and based on the reception status of the restart pulse in the own device and the opposite transmission device, either the transmission path of the own device or the opposite transmission device or the transmission path between the own device and the opposite transmission device It is possible to specify whether it has occurred.
本発明の伝送装置は、ネットワーク断等による通信断の障害発生時に、インタフェース盤５−１１，５−２１で、一旦、送信信号の送出を停止した状態で、監視制御盤（ＣＯＮＴ）５−１４，５−２４から一定のタイミングのパルス信号を用い、障害復旧の確認のために送出されるリスタートパルスを利用し、該リスタートパルスの受信状況により、通信断の障害発生箇所を特定可能にする。 The transmission apparatus according to the present invention has a monitoring control board (CONT) 5-14 in a state where transmission of a transmission signal is once stopped by the interface boards 5-11 and 5-21 when a communication interruption occurs due to a network interruption or the like. , 5-24, using a pulse signal with a fixed timing, and using a restart pulse sent for confirmation of failure recovery, it is possible to identify the location of the failure of communication disconnection according to the reception status of the restart pulse To do.
図１に本発明の伝送装置の構成例を示す。インタフェース盤５−１１，５−２１は、通信断の障害発生時に、監視制御盤（ＣＯＮＴ）５−１４，５−２４の制御により、送信信号の送出を停止した状態で、障害が復旧するまで、所定の間隔でリスタートパルスを送出する。 FIG. 1 shows a configuration example of the transmission apparatus of the present invention. The interface boards 5-11 and 5-21 are in a state in which the transmission of transmission signals is stopped by the control of the monitoring control boards (CONT) 5-14 and 5-24 at the time of occurrence of a communication interruption failure until the failure is recovered. A restart pulse is transmitted at a predetermined interval.
前置増幅部（ＰｒｅＡＭＰＡ）５−１３，５−２３及びインタフェース盤５−１１，５−２１は、該リスタートパルスの受信結果を、監視制御盤（ＣＯＮＴ）５−１４，５−２４に送出する。監視制御盤（ＣＯＮＴ）５−１４，５−２４は、該リスタートパルスの受信結果を、対向する伝送装置に、伝送路（３）とは別のアウトバンドの監視チャネル（ＯＳＣ）盤５−１５，５−２５により監視信号として通知する。各伝送装置５−１，５−２では、自装置におけるリスタートパルスの受信結果、及び対向装置におけるリスタートパルスの受信結果の組み合わせを基に、通信断の原因となった障害発生箇所を特定する。 Preamplifiers (PreAMPA) 5-13 and 5-23 and interface boards 5-11 and 5-21 send the reception result of the restart pulse to monitoring control boards (CONT) 5-14 and 5-24. To do. The supervisory control boards (CONT) 5-14 and 5-24 send the restart pulse reception result to the opposite transmission apparatus, and the out-of-band supervisory channel (OSC) board 5- 15, 5-25 to notify as a monitoring signal. Each transmission device 5-1 and 5-2 identifies the location of the failure that caused the communication interruption based on the combination of the reception result of the restart pulse at its own device and the reception result of the restart pulse at the opposite device. To do.
図２に本発明の障害発生箇所特定の処理フローを示す。まず、初期設定として、監視制御盤（ＣＯＮＴ）５−１４，５−２４内のソフトウェア処理において、Ａ局のインタフェース盤（ＩＦ＃１〜８）でのリスタートパルスの受信結果を記憶する記憶部ＩＦＡを０（未受信）に設定する。また、Ｂ局のインタフェース盤（ＩＦ＃９〜１６）でのリスタートパルスの受信結果を記憶する記憶部ＩＦＢを０（未受信）に設定する。また、Ａ局の前置増幅部（ＰｒｅＡＭＰＡ）でのリスタートパルスの受信結果を記憶する記憶部ＰｒｅＡを０（未受信）に設定する。また、Ｂ局の前置増幅部（ＰｒｅＡＭＰＢ）でのリスタートパルスの受信結果を記憶する記憶部ＰｒｅＢを０（未受信）に設定する。即ち、ＩＦＡ＝０，ＩＦＢ＝０，ＰｒｅＡ＝０，ＰｒｅＢ＝０と設定する。 FIG. 2 shows a processing flow for identifying a fault occurrence location according to the present invention. First, as an initial setting, in the software processing in the supervisory control boards (CONT) 5-14 and 5-24, a storage unit for storing the reception result of the restart pulse at the interface board (IF # 1 to 8) of the station A Set IFA to 0 (not received). Further, the storage unit IFB for storing the reception result of the restart pulse at the interface board (IF # 9 to 16) of the B station is set to 0 (not received). Further, the storage unit PreA that stores the reception result of the restart pulse at the preamplifier unit (PreAMPA) of the A station is set to 0 (not received). Further, the storage unit PreB that stores the reception result of the restart pulse at the preamplifier unit (PreAMPB) of the B station is set to 0 (not received). That is, IFA = 0, IFB = 0, PreA = 0, PreB = 0 are set.
そして、Ａ局の伝送装置のインタフェース盤ＩＦ＃１〜８の何れか１つでもリスタートパルスを受信したか否かを監視し（ステップ２−１）、受信した場合、その受信結果を記憶する記憶部ＩＦＡを１（受信済）に設定する（ステップ２−２）。また、Ｂ局のインタフェース盤ＩＦ＃９〜１６の何れか１つでもリスタートパルスを受信したか否かを監視し（ステップ２−３）、受信した場合、その受信結果を記憶する記憶部ＩＦＢを１（受信済）に設定する（ステップ２−４）。 Then, it monitors whether or not any one of the interface boards IF # 1 to 8 of the transmission apparatus of the A station has received the restart pulse (step 2-1), and if received, stores the reception result. The storage unit IFA is set to 1 (received) (step 2-2). Further, it monitors whether or not any one of the interface boards IF # 9 to 16 of the station B has received the restart pulse (step 2-3), and if received, the storage unit IFB for storing the reception result Is set to 1 (received) (step 2-4).
また、Ａ局の前置増幅部（ＰｒｅＡＭＰＡ）でリスタートパルスを受信したか否かを監視し（ステップ２−５）、受信した場合、その受信結果を記憶する記憶部ＰｒｅＡを１（受信済）に設定する（ステップ２−６）。また、Ｂ局の前置増幅部（ＰｒｅＡＭＰＢ）でリスタートパルスを受信したか否かを監視し（ステップ２−７）、受信した場合、その受信結果を記憶する記憶部ＰｒｅＢを１（受信済）に設定する（ステップ２−８）。 In addition, the preamplifier (PreAMPA) of station A monitors whether or not a restart pulse has been received (step 2-5). If received, the storage unit PreA that stores the reception result is set to 1 (received). (Step 2-6). Further, the preamplifier (PreAMPB) of station B monitors whether or not a restart pulse has been received (step 2-7). If received, the storage unit PreB that stores the reception result is set to 1 (received). (Step 2-8).
次に、上述の各記憶部ＩＦＡ，ＩＦＢ，ＰｒｅＡ，ＰｒｅＢの記憶内容を読み出し、記憶部ＩＦＡに１、ＩＦＢに０、ＰｒｅＡに１、ＰｒｅＢに０が記憶されていると判定された場合（ステップ２−９）、Ａ局ではＢ局から送出されたリスタートパルスが受信されるが、Ｂ局ではＡ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＢ）でもインタフェース盤ＩＦ＃９〜１６でも受信されないため、伝送路（１）が断の状態であると判定する(ステップ２−１０)。 Next, when the storage contents of each of the storage units IFA, IFB, PreA, and PreB are read and it is determined that 1 is stored in the storage unit IFA, 0 is stored in the IFB, 1 is stored in the PreA, and 0 is stored in the PreB (step) 2-9) Although the restart pulse transmitted from the B station is received at the A station, the restart pulse transmitted from the A station is received by the preamplifier (PreAMPB) at the B station. 16 is not received, it is determined that the transmission line (1) is in a disconnected state (step 2-10).
また、記憶部ＩＦＡに０、ＩＦＢに１、ＰｒｅＡに１、ＰｒｅＢに１が記憶されていると判定された場合（ステップ２−１１）、Ａ局ではＢ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＡ）で受信されるが、インタフェース盤ＩＦ＃１〜８で受信されず、Ｂ局ではＡ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＢ）でもインタフェース盤ＩＦ＃９〜１６でも受信されるため、伝送路（２）が断の状態であると判定する(ステップ２−１２)。 When it is determined that 0 is stored in the storage unit IFA, 1 is stored in the IFB, 1 is stored in the PreA, and 1 is stored in the PreB (step 2-11), the restart pulse transmitted from the station B is transmitted to the station A. It is received by the preamplifier (PreAMPA), but not received by the interface board IF # 1-8, and the restart pulse transmitted from the A station at the B station is also received by the preamplifier (PreAMPB) at the interface board IF # 9. ˜16, it is determined that the transmission line (2) is in a disconnected state (step 2-12).
また、記憶部ＩＦＡに０、ＩＦＢに０、ＰｒｅＡに０、ＰｒｅＢに０が記憶されていると判定された場合（ステップ２−１３）、Ａ局ではＢ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＡ）でもインタフェース盤ＩＦ＃１〜８で受信されず、Ｂ局ではＡ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＢ）でもインタフェース盤ＩＦ＃９〜１６でも受信されないため、伝送路（３）が断の状態であると判定する(ステップ２−１４)。 When it is determined that 0 is stored in the storage unit IFA, 0 is stored in the IFB, 0 is stored in the PreA, and 0 is stored in the PreB (step 2-13), the restart pulse transmitted from the station B is transmitted to the station A. Even the preamplifier (PreAMPA) is not received by the interface board IF # 1-8, and the restart pulse transmitted from the A station is not received by the preamplifier (PreAMPB) or the interface board IF # 9-16 at the B station. Therefore, it is determined that the transmission path (3) is in a disconnected state (step 2-14).
また、記憶部ＩＦＡに１、ＩＦＢに０、ＰｒｅＡに１、ＰｒｅＢに１が記憶されていると判定された場合（ステップ２−１５）、Ａ局ではＢ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＡ）でもインタフェース盤ＩＦ＃１〜８で受信され、Ｂ局ではＡ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＢ）で受信されるが、インタフェース盤ＩＦ＃９〜１６で受信されないため、伝送路（４）が断の状態であると判定する(ステップ２−１６)。 If it is determined that 1 is stored in the storage unit IFA, 0 in the IFB, 1 in the PreA, and 1 in the PreB (step 2-15), the restart pulse transmitted from the B station is transmitted to the A station. In the preamplifier (PreAMPA), the interface board IF # 1-8 receives the restart pulse. In the station B, the restart pulse transmitted from the station A is received by the preamplifier (PreAMPB). 16, it is determined that the transmission path (4) is in a disconnected state (step 2-16).
上記以外の場合、伝送路（５）が断の状態であると判定する(ステップ２−１７)。或いは、上記のステップ２−１７に代えて、記憶部ＩＦＡに０、ＩＦＢに１、ＰｒｅＡに０、ＰｒｅＢに１が記憶されていると判定された場合、Ａ局ではＢ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＡ）でもインタフェース盤ＩＦ＃１〜８で受信されず、Ｂ局ではＡ局から送出されたリスタートパルスが前置増幅部（ＰｒｅＡＭＰＢ）でもインタフェース盤ＩＦ＃９〜１６で受信されるため、伝送路（５）が断の状態であると判定する構成とすることもできる。このように、何れの箇所が断の状態となったかを特定することが可能となる。 In cases other than the above, it is determined that the transmission line (5) is in a disconnected state (step 2-17). Alternatively, instead of the above step 2-17, if it is determined that 0 is stored in the storage unit IFA, 1 is stored in the IFB, 0 is stored in the PreA, and 1 is stored in the PreB, the station A transmits the retransmitted from the station B. The start pulse is not received by the interface board IF # 1 to 8 in the preamplifier (PreAMPA), and the restart pulse transmitted from the A station is also received in the station B by the interface board IF # 9 to Preamplifier (PreAMPB). 16, the transmission path (5) can be determined to be disconnected. In this way, it is possible to specify which part is in a disconnected state.
図３にＡ局の伝送装置におけるリスタートパルスの受信結果の送出の構成例を示す。同図に示すように、Ａ局の伝送装置の前置増幅部（ＰｒｅＡＭＰＡ）５−１３及びインタフェース盤（ＩＦ＃１〜８）５−１１は、リスタートパルスを受信すると、該受信結果を自装置の監視制御盤（ＣＯＮＴ）５−１４に送出し、監視制御盤（ＣＯＮＴ）５−１４は、該リスタートパルスの受信結果を、対向するＢ局の伝送装置５−２の監視制御盤（ＣＯＮＴ）５−２４に、主伝送路とは別の監視チャネルを介して通知する。 FIG. 3 shows a configuration example of transmission of a restart pulse reception result in the transmission apparatus of the station A. As shown in the figure, when the preamplifier (PreAMPA) 5-13 and the interface board (IF # 1-8) 5-11 of the transmission apparatus of the A station receive the restart pulse, the reception result is automatically determined. The monitoring control board (CONT) 5-14 sends the restart pulse reception result to the monitoring control board (5-2) of the opposing B station transmission equipment 5-2 ( CONT) 5-24 through a monitoring channel different from the main transmission path.
図４にＢ局の伝送装置におけるリスタートパルスの受信結果の送出の構成例を示す。同図に示すように、Ｂ局の伝送装置の前置増幅部（ＰｒｅＡＭＰＢ）５−２３及びインタフェース盤（ＩＦ＃９〜１６）５−２１は、リスタートパルスを受信すると、該受信結果を自装置の監視制御盤（ＣＯＮＴ）５−２４に送出し、監視制御盤（ＣＯＮＴ）５−２４は、該リスタートパルスの受信結果を、対向するＢ局の伝送装置５−２の監視制御盤（ＣＯＮＴ）５−１４に、主伝送路とは別の監視チャネルを介して通知する。 FIG. 4 shows a configuration example of transmission of the restart pulse reception result in the transmission apparatus of station B. As shown in the figure, when the preamplifier (PreAMPB) 5-23 and the interface board (IF # 9-16) 5-21 of the transmission apparatus of the B station receive the restart pulse, the reception result is automatically received. The monitoring control board (CONT) 5-24 sends the restart pulse reception result to the monitoring control board (5-2) of the transmitting station 5-2 of the opposite B station. CONT) 5-14 via a monitoring channel different from the main transmission path.
５−１ Ａ局の伝送装置
５−２ Ｂ局の伝送装置
５−１１，５−２１ インタフェース盤
５−１２，５−２２ 合成分岐増幅部
５−１３，５−２３ 前置増幅部
５−１４，５−２４ 監視制御盤
５−１５，５−２５ 監視チャネル盤
5-1 A Station Transmission Device 5-2 B Station Transmission Device 5-11, 5-21 Interface Panel 5-12, 5-22 Synthetic Branch Amplifying Unit 5-13, 5-23 Preamplifying Unit 5-14 , 5-24 Monitoring control panel 5-15, 5-25 Monitoring channel panel
Claims (2)
前記対向伝送装置との間で通信断の障害発生の時に該障害が復旧するまで、前記インタフェース盤から前記対向伝送装置に向けてリスタートパルスを送信するリスタートパルス送信手段と、
前記対向伝送装置から送信された前記リスタートパルスが自装置の前記前置増幅器で受信されたことを自装置の監視制御盤に通知する第１の通知手段と、
前記対向伝送装置から送信された前記リスタートパルスが自装置の前記インタフェース盤で受信されたことを自装置の監視制御盤に通知する第２の通知手段と、
前記第１及び第２の通知手段で通知されたリスタートパルスの受信結果を、前記伝送路の経路と異なる監視チャネルで前記対向伝送装置に通知する監視チャネル盤と、
前記第１及び第２の通知手段で通知されたリスタートパルスの受信結果、及び前記監視チャネル盤を介して通知された前記対向伝送装置におけるリスタートパルスの受信結果を基に、自装置若しくは前記対向伝送装置における前記前置増幅器と前記インタフェース盤との間の伝送路、又は前記対向伝送装置との間の伝送路の何れに障害が発生したかを特定する障害箇所特定手段と、
を備えたことを特徴とする伝送装置。 A transmission signal input to the interface board is transmitted to the opposite transmission device via the transmission line via the preamplifier, and is received from the opposite transmission device and received via the transmission line. In a transmission device that outputs a signal from the interface board via the preamplifier,
Restart pulse transmitting means for transmitting a restart pulse from the interface panel to the opposite transmission device until the failure is recovered when a failure occurs in communication with the opposite transmission device;
First notification means for notifying the monitoring control panel of the own device that the restart pulse transmitted from the opposite transmission device has been received by the preamplifier of the own device;
Second notification means for notifying the monitoring control board of the own device that the restart pulse transmitted from the opposite transmission device has been received by the interface board of the own device;
A monitoring channel board for notifying the opposite transmission device of the reception result of the restart pulse notified by the first and second notification means via a monitoring channel different from the path of the transmission path;
Based on the reception result of the restart pulse notified by the first and second notification means and the reception result of the restart pulse in the opposite transmission apparatus notified via the monitoring channel board, A failure point specifying means for specifying which of the transmission path between the preamplifier and the interface board in the opposite transmission apparatus or the transmission path between the opposite transmission apparatus has occurred;
A transmission apparatus comprising:
前記対向伝送装置との間で通信断の障害発生の時に該障害が復旧するまで、前記インタフェース盤から前記対向伝送装置に向けてリスタートパルスを送信するリスタートパルス送信ステップと、
前記対向伝送装置から送信された前記リスタートパルスが自装置の前記前置増幅器で受信されたことを自装置の監視制御盤に通知する第１の通知ステップと、
前記対向伝送装置から送信された前記リスタートパルスが自装置の前記インタフェース盤で受信されたことを自装置の監視制御盤に通知する第２の通知ステップと、
前記第１及び第２の通知ステップで通知されたリスタートパルスの受信結果を、前記伝送路の経路と異なる監視チャネルで前記対向伝送装置に通知する第３の通知ステップと、
前記第１及び第２の通知ステップで通知されたリスタートパルスの受信結果、及び前記第３の通知ステップで通知された前記対向伝送装置におけるリスタートパルスの受信結果を基に、自装置若しくは前記対向伝送装置における前記前置増幅器と前記インタフェース盤との間の伝送路、又は前記対向伝送装置との間の伝送路の何れに障害が発生したかを特定する障害箇所特定ステップと、
を含むことを特徴とする伝送装置の障害発生箇所特定方法。 A transmission signal input to the interface board is transmitted to the opposite transmission device via the transmission line via the preamplifier, and is received from the opposite transmission device and received via the transmission line. In the method of identifying a fault occurrence location of the transmission device that outputs a signal from the interface board via the preamplifier,
A restart pulse transmitting step of transmitting a restart pulse from the interface panel to the opposing transmission device until the failure is recovered when a failure occurs in communication with the opposing transmission device; and
A first notification step of notifying the monitoring control panel of the own device that the restart pulse transmitted from the opposite transmission device has been received by the preamplifier of the own device;
A second notification step of notifying the monitoring control board of the own device that the restart pulse transmitted from the opposite transmission device has been received by the interface board of the own device;
A third notification step of notifying the opposite transmission apparatus of the reception result of the restart pulse notified in the first and second notification steps through a monitoring channel different from the path of the transmission path;
Based on the reception result of the restart pulse notified in the first and second notification steps and the reception result of the restart pulse in the opposite transmission device notified in the third notification step, A fault location identifying step that identifies which fault has occurred in the transmission path between the preamplifier and the interface board in the counter transmission apparatus or the transmission path between the counter transmission apparatus;
A method for identifying a failure occurrence location of a transmission apparatus, comprising:
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014027574A (en) * | 2012-07-30 | 2014-02-06 | Hitachi Ltd | Abnormality determination device and abnormality determination method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0522755A (en) * | 1991-07-16 | 1993-01-29 | Canon Inc | Diagnostic apparatus |
| JPH05244098A (en) * | 1992-02-28 | 1993-09-21 | Hitachi Ltd | Optical transmission equipment, optical repeater, optical reception equipment, optical fiber transmission system, and its monitoring method |
| JP2001217775A (en) * | 2000-01-31 | 2001-08-10 | Nippon Telegr & Teleph Corp <Ntt> | Optical receiver, optical transmitter, optical amplifying repeater and optical signal monitoring system |
| JP2002033703A (en) * | 2000-07-17 | 2002-01-31 | Nec Miyagi Ltd | Optical reception fault diagnostic method, and optical transmission system provided with optical reception fault diagnostic function |
| JP2003318837A (en) * | 2002-04-23 | 2003-11-07 | Furukawa Electric Co Ltd:The | Optical amplifier and optical communication system using the same |
| JP2009253475A (en) * | 2008-04-02 | 2009-10-29 | Fujitsu Telecom Networks Ltd | Transmission apparatus, network monitoring device, network communication system and troubleshooting method therefor |
-
2010
- 2010-03-03 JP JP2010046081A patent/JP5444045B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0522755A (en) * | 1991-07-16 | 1993-01-29 | Canon Inc | Diagnostic apparatus |
| JPH05244098A (en) * | 1992-02-28 | 1993-09-21 | Hitachi Ltd | Optical transmission equipment, optical repeater, optical reception equipment, optical fiber transmission system, and its monitoring method |
| JP2001217775A (en) * | 2000-01-31 | 2001-08-10 | Nippon Telegr & Teleph Corp <Ntt> | Optical receiver, optical transmitter, optical amplifying repeater and optical signal monitoring system |
| JP2002033703A (en) * | 2000-07-17 | 2002-01-31 | Nec Miyagi Ltd | Optical reception fault diagnostic method, and optical transmission system provided with optical reception fault diagnostic function |
| JP2003318837A (en) * | 2002-04-23 | 2003-11-07 | Furukawa Electric Co Ltd:The | Optical amplifier and optical communication system using the same |
| JP2009253475A (en) * | 2008-04-02 | 2009-10-29 | Fujitsu Telecom Networks Ltd | Transmission apparatus, network monitoring device, network communication system and troubleshooting method therefor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014027574A (en) * | 2012-07-30 | 2014-02-06 | Hitachi Ltd | Abnormality determination device and abnormality determination method |
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| JP5444045B2 (en) | 2014-03-19 |
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