JPS6258183B2 - - Google Patents

Info

Publication number
JPS6258183B2
JPS6258183B2 JP17844182A JP17844182A JPS6258183B2 JP S6258183 B2 JPS6258183 B2 JP S6258183B2 JP 17844182 A JP17844182 A JP 17844182A JP 17844182 A JP17844182 A JP 17844182A JP S6258183 B2 JPS6258183 B2 JP S6258183B2
Authority
JP
Japan
Prior art keywords
repeater
remote location
line
sent
detecting
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.)
Expired
Application number
JP17844182A
Other languages
Japanese (ja)
Other versions
JPS5970029A (en
Inventor
Masaru Yamaguchi
Masaharu Shimada
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Nippon Electric Co Ltd
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 Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP57178441A priority Critical patent/JPS5970029A/en
Publication of JPS5970029A publication Critical patent/JPS5970029A/en
Publication of JPS6258183B2 publication Critical patent/JPS6258183B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/46Monitoring; Testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Description

【発明の詳細な説明】 本発明は中継器の保守監視方式に関する。[Detailed description of the invention] The present invention relates to a repeater maintenance and monitoring system.

従来、中継系の障害位置の検定は、監視局より
中継器に固有のパルスパターンを送出し、各中継
器では、そのパターンの低周波成分を取り出し、
監視回線を使用して監視局に返送することにより
行なわれていた。上記方法では、たとえば特定の
中継器が障害の時、その中継器に固有な低周波信
号が監視局に返送されない。またその中継器に接
続されている線路が障害の時、やはりその中継器
に固有な低周波信号が監視局に返送されない。し
たがつて、従来の方法では、中継器障害、線路障
害の区別ができないという欠点があり、さらに監
視回線が必要となるという欠点もあつた。
Conventionally, to verify the location of a fault in a relay system, a monitoring station sends out a unique pulse pattern to each repeater, and each repeater extracts the low frequency components of that pattern.
This was done by sending the information back to the monitoring station using a monitoring line. In the above method, for example, when a particular repeater fails, the low frequency signal specific to that repeater is not sent back to the monitoring station. Furthermore, when a line connected to a repeater has a fault, the low frequency signal unique to the repeater is not sent back to the monitoring station. Therefore, the conventional method has the disadvantage that it cannot distinguish between repeater failure and line failure, and also requires a monitoring line.

本発明の目的は、特定コードの検出により、遠
隔地から送られてくるデータを遠隔地に返送する
試験と、遠隔地から送られてくる直流を検出し
て、中継器をバイパスした上での線路のみの試験
との組み合せにより、前記従来方法の欠点を解決
し、障害場所の識別が確実にできる中継器監視回
路を提供することにある。
The purpose of the present invention is to perform a test in which data sent from a remote location is returned to a remote location by detecting a specific code, and a test in which data sent from a remote location is detected and a repeater is bypassed. It is an object of the present invention to provide a repeater monitoring circuit which solves the drawbacks of the conventional method and can reliably identify the location of a fault by combining it with a line-only test.

本発明によれば、中継系の障害を監視するため
に各々の中継器に設けられた中継器監視回路にお
いて、遠隔地より送られてくる特定コードを検出
する手段と、該コードを検出した後前記遠隔地よ
り送られてくるデータをループ折り返しする手段
と、前記遠隔地より送られてくる直流を検出する
手段と、該直流を検出した時、中継器をバイパス
し、該直流を次段中継器に供給する手段とを有す
ることを特徴とする中継器監視回路が得られる。
According to the present invention, in a repeater monitoring circuit provided in each repeater to monitor failures in the repeater system, means for detecting a specific code sent from a remote location, and a means for detecting a specific code sent from a remote location, and means for looping back data sent from the remote location; means for detecting direct current sent from the remote location; and means for bypassing the repeater and relaying the direct current to the next stage when the direct current is detected. A repeater monitoring circuit is obtained, characterized in that the repeater monitoring circuit has a means for supplying the repeater to the repeater.

以下、図面を参照して本発明を詳細に説明す
る。
Hereinafter, the present invention will be explained in detail with reference to the drawings.

第1図は本発明を用いた中継系の一部の構成を
示した回路図である。図において、図面に向つて
左側が遠隔地側であり、1k〜1k+2,1′k〜1′k+
は伝送線路、2kは遠隔地からk(k≧1)段目
の中継器、2k+1は次段の中継器を示す。
FIG. 1 is a circuit diagram showing a partial configuration of a relay system using the present invention. In the figure, the left side when facing the drawing is the remote side, 1 k ~ 1 k+2 , 1' k ~ 1' k+
2 indicates a transmission line, 2 k indicates a k-th (k≧1) stage repeater from a remote location, and 2 k+1 indicates a next stage repeater.

先ず中継系に障害がないものとして説明する。
通常、中継器2kと次段の中継器2k+1とは伝送線
路1k+1,1′k+1により接続されている。この状
態で、遠隔地より伝送線路1kを介して中継器2k
に固有なコードが送出されると、中継器2kはそ
れを検出してパスAkを設定する。そのとき次段
の中継器2k+1は中継器2kと回路的に切離され
る。パスAkが設定された後遠隔地から線路1k
介して送出されてきたデータを線路1′kを介して
遠隔地に返送する。このようにしてパスAkによ
る中継器2kの折り返し試験がなされた後、パス
kの設定が解除される。また、次段の中継器2k
+1も同様な機能を持つ。
First, explanation will be given assuming that there is no failure in the relay system.
Usually, the repeater 2 k and the next stage repeater 2 k+1 are connected by transmission lines 1 k+1 and 1' k+1 . In this state, repeater 2 k is connected from a remote location via transmission line 1 k .
When a unique code is sent out, the repeater 2 k detects it and sets a path A k . At that time, the next stage repeater 2 k+1 is separated from the repeater 2 k in terms of circuit. After the path A k is set, the data sent from the remote location via the line 1 k is sent back to the remote location via the line 1' k . After the loopback test of the repeater 2 k using the path A k is performed in this way, the setting of the path A k is canceled. Also, the next stage repeater 2 k
+1 has a similar function.

次に、遠隔地から直流が印加されると、中継器
kでそれを検出してパスBk,B′kを設定する。
このとき中継器2kは伝送線路から回路的に切離
される。そして、次段の中継器2k+1に直流を供
給し、中継器2k+1でそれを検出してパスBk+1
B′k+1を設定し、中継器2k+1は伝送線路から回路
的に切離される。以下同様である。このようにし
て、パスB1,…,Bk,Bk+1,…,B′k+1,B′k
…,B′1が設定されたのち、遠隔地から交流等を
中継系に入力することにより線路試験がなされ
る。
Next, when direct current is applied from a remote location, the repeater 2 k detects it and sets paths B k and B' k .
At this time, the repeater 2 k is circuit-wise separated from the transmission line. Then, direct current is supplied to the next-stage repeater 2 k+1 , and the repeater 2 k+1 detects it and connects the path B k+1 ,
B′ k+1 is set, and the repeater 2 k+1 is circuit-wise separated from the transmission line. The same applies below. In this way, the paths B 1 ,..., B k , B k+1 ,..., B' k+1 , B' k ,
..., B′ 1 are set, a line test is performed by inputting AC, etc. to the relay system from a remote location.

このような機能を有する中継系において、次段
の中継器2k+1が障害の時、パスAkによる折り返
し試験と線路試験は可能であるが、パスAk+1
よる折り返し試験は不可能となる。一方、線路1
k+1,1′k+1が障害の場合、パスAkによる折り返
し試験は可能であるが、線路試験とパスAk+1
よる折り返し試験は不可能となる。
In a relay system with such a function, when the next stage repeater 2 k+1 has a failure, loopback tests and line tests using path A k are possible, but loopback tests using path A k+1 are impossible. becomes. On the other hand, line 1
k+1 , 1' If k+1 is a failure, a loop test using path A k is possible, but a line test and a loop test using path A k+1 are impossible.

したがつて、本発明を用いることにより、線路
試験、パスAk、パスAk+1による折り返し試験結
果により、中継器障害か線路障害かの区別をつけ
ることができる。
Therefore, by using the present invention, it is possible to distinguish between a repeater failure and a line failure based on the line test and the return test results of path A k and path A k+1 .

第2図は本発明による一実施例の構成を示した
ブロツク図である。図において、2kは中継器、
kはリレー、T1k,T2k,T3k,T4kはトラ
ンス、SW1k,SW2k,SW3k,SW4kはリレー
kの接点、SW5k,SW6kはスイツチである。
スイツチSW1k,SW2k,SW3k,SW4k,SW
k,SW6kは通常状態では図中黒丸方向に接触
している。またPk,P′k,Qk,Q′kは線路端であ
る。さらに図面に向つて左側が遠隔地側である。
FIG. 2 is a block diagram showing the configuration of an embodiment according to the present invention. In the figure, 2k is a repeater,
3 k is a relay, T1 k , T2 k , T3 k and T4 k are transformers, SW1 k , SW2 k , SW3 k and SW4 k are contacts of the relay 3 k , and SW5 k and SW6 k are switches.
Switch SW1 k , SW2 k , SW3 k , SW4 k , SW
5 k and SW6 k are in contact in the direction of the black circle in the figure in the normal state. Furthermore, P k , P' k , Q k and Q' k are line ends. Furthermore, the left side when facing the drawing is the remote location side.

以下、第2図を参照して動作を説明する。 The operation will be explained below with reference to FIG.

遠隔地より特定コードが送られてくると、線路
端Pkを介して中継器2kに入力され、中継器2k
でそれを検出し、スイツチSW5k,SW6kを反転
する。この状態では遠隔地からのデータが、線路
端P′kを介して遠隔地に返送される。
When a specific code is sent from a remote location, it is input to repeater 2k via line end Pk , and then
detects this and inverts switches SW5 k and SW6 k . In this state, data from the remote location is sent back to the remote location via line end P′ k .

次に遠隔地より直流が印加されると、線路端P
kから直流電流がリレー3kに流れこみ、接点SW
k,SW2k,SW3k,SW4kを反転する。した
がつて、中継器2kはバイパスされ、線路がトラ
ンスを介して直結される。リレー3kに流れ込ん
だ電流は線路端Qkを介して線路に流れ出し、次
段以降の中継器(図示せず)を介してQ′kより流
れこみ、更にP′kを介して遠隔地に戻つてゆく。
Next, when DC is applied from a remote location, the line end P
DC current flows from k to relay 3 k , contact SW
1 k , SW2 k , SW3 k , and SW4 k are inverted. Therefore, the repeater 2 k is bypassed and the lines are directly connected via the transformer. The current flowing into relay 3 k flows out to the line via line end Q k , flows from Q′ k through the next stage repeater (not shown), and then flows to a remote location via P′ k . I'm going back.

したがつて、第1図におけるパスAk,Bk
B′kの設定が可能となる。
Therefore, the paths A k , B k ,
It becomes possible to set B′ k .

以上の説明により明らかなように、本発明によ
れば、中継系において中継器障害と線路障害の区
別が明確にでき、障害場所の識別が確実にできる
という効果がある。
As is clear from the above description, according to the present invention, it is possible to clearly distinguish between a repeater failure and a line failure in a relay system, and the location of the failure can be reliably identified.

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

第1図は本発明を用いた中継系の一部の構成を
示した回路図、第2図は本発明による一実施例の
構成を示したブロツク図である。 記号の説明:2kは中継器、2k+1は次段の中継
器、3kはリレーをそれぞれあらわしている。
FIG. 1 is a circuit diagram showing a partial configuration of a relay system using the present invention, and FIG. 2 is a block diagram showing the configuration of an embodiment according to the present invention. Explanation of symbols: 2k represents a repeater, 2k +1 represents a next-stage repeater, and 3k represents a relay.

Claims (1)

【特許請求の範囲】[Claims] 1 中継系の障害を監視するために各々の中継器
に設けられた中継器監視回路において、遠隔地よ
り送られてくる特定コードを検出する手段と、該
コードを検出した後前記遠隔地より送られてくる
データをループ折り返しする手段と、前記遠隔地
より送られてくる直流を検出する手段と、該直流
を検出した時、中継器をバイパスし、該直流を次
段中継器に供給する手段とを有することを特徴と
する中継器監視回路。
1. In a repeater monitoring circuit provided in each repeater to monitor failures in the repeater system, means for detecting a specific code sent from a remote location, and means for detecting a specific code sent from the remote location after detecting the code. means for looping back data received from the remote location; means for detecting direct current sent from the remote location; and means for bypassing the repeater and supplying the direct current to the next stage repeater when the direct current is detected. A repeater monitoring circuit comprising:
JP57178441A 1982-10-13 1982-10-13 Supervisory circuit of repeater Granted JPS5970029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57178441A JPS5970029A (en) 1982-10-13 1982-10-13 Supervisory circuit of repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57178441A JPS5970029A (en) 1982-10-13 1982-10-13 Supervisory circuit of repeater

Publications (2)

Publication Number Publication Date
JPS5970029A JPS5970029A (en) 1984-04-20
JPS6258183B2 true JPS6258183B2 (en) 1987-12-04

Family

ID=16048570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57178441A Granted JPS5970029A (en) 1982-10-13 1982-10-13 Supervisory circuit of repeater

Country Status (1)

Country Link
JP (1) JPS5970029A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227883U (en) * 1988-08-08 1990-02-22

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776305A (en) * 1986-05-20 1988-10-11 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control device for two-cycle engines
JPH077933B2 (en) * 1988-05-20 1995-01-30 富士通株式会社 Digital transmission equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227883U (en) * 1988-08-08 1990-02-22

Also Published As

Publication number Publication date
JPS5970029A (en) 1984-04-20

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