JPS62279731A - Monitir control signal transmission system for repeater - Google Patents
Monitir control signal transmission system for repeaterInfo
- Publication number
- JPS62279731A JPS62279731A JP61124353A JP12435386A JPS62279731A JP S62279731 A JPS62279731 A JP S62279731A JP 61124353 A JP61124353 A JP 61124353A JP 12435386 A JP12435386 A JP 12435386A JP S62279731 A JPS62279731 A JP S62279731A
- Authority
- JP
- Japan
- Prior art keywords
- control signal
- output
- light emitting
- emitting element
- control circuit
- 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.)
- Granted
Links
- 230000008054 signal transmission Effects 0.000 title description 3
- 230000003287 optical effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 15
- 238000000605 extraction Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
（産業上の利用分野）
本発明は、光伝送方式に関し、特に伝送回線使用状態に
おける監視制御信号の伝送方式に関する。DETAILED DESCRIPTION OF THE INVENTION 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an optical transmission system, and particularly to a system for transmitting supervisory control signals when a transmission line is in use.
（従来の技術）
従来、この種の監視制御信号の伝送方式としては、ｍＢ
ＩＰ符号側のパリティバイオレーション方式（英国特許
ＡＬ５３６３３７ ）が知られている。(Prior art) Conventionally, as a transmission method for this type of supervisory control signal, mB
A parity violation method on the IP code side (British patent AL536337) is known.
（発明が解決しようとする問題点）
上述した従来の監視制御信号の伝送方式では伝送ライン
の符号則の特異性を利用しているから、符号則が変われ
ば監視制御信号を伝送することが出来ないという問題が
あった。(Problems to be Solved by the Invention) The conventional supervisory control signal transmission method described above utilizes the uniqueness of the coding rule of the transmission line, so if the coding rule changes, the supervisory control signal cannot be transmitted. The problem was that there was no.
本発明は、上記問題点に鑑みてなされたもので、伝送ラ
イン側の特殊な伝送符号則に依存することなく確実に監
視制御信号を伝送することのできる中継器の監視制御信
号伝送方式を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and provides a supervisory control signal transmission method for repeaters that can reliably transmit supervisory control signals without relying on special transmission code rules on the transmission line side. The purpose is to
（問題点を解決するための手段）
前述の問題点を解決し、上記目的を達成するために本発
明が提供する中Ｉ！器は、入力された光信号を受光素子
で受光し、この受光素子の出力を増幅器により増幅し、
この増幅器の出力を識別再生〒に加え１把光信号を識別
再生ゝ・前記識別再生器の出力の再生信号に基づいて発
光素子を駆動する中継器であって、前記増幅器の増幅出
力の出力値に応じた増倍率制御信号により前記受光素子
の増倍率を制御して前記増幅器の出力値を一定に揃える
利得制御回路と、前記増倍率制御信号から監視制御信号
を抽出する監視制御信号抽出手段と、この監視制御信号
抽出手段の出力の前記監視制御信号に応じて鹸記発光素
子の駆動電力を制御する電力制御回路とを設け、該発光
素子の発光エネルギーを制御することにより監視制御信
号を伝送するようにしたことを特徴とする。(Means for Solving the Problems) In order to solve the above-mentioned problems and achieve the above objects, the present invention provides I! The device receives the input optical signal with a light-receiving element, amplifies the output of this light-receiving element with an amplifier,
In addition to identifying and reproducing the output of this amplifier, one optical signal is also identified and reproduced. A repeater that drives a light emitting element based on a reproduced signal of the output of the identification regenerator, the output value of the amplified output of the amplifier. a gain control circuit that controls the multiplication factor of the light receiving element using a multiplication factor control signal corresponding to the multiplication factor control signal to make the output value of the amplifier constant; and a monitoring control signal extraction means that extracts a monitoring control signal from the multiplication factor control signal. and a power control circuit for controlling the drive power of the light emitting element according to the supervisory control signal output from the supervisory control signal extraction means, and transmitting the supervisory control signal by controlling the light emitting energy of the light emitting element. It is characterized by being made to do.
（実施例）
第１図は本発明の中継器の一実施例を示したブロック図
である。まず構成を説明すると、１は光伝送方式により
入力された光信号を受光する受光素子であり、受光素子
１の受光出力１ａは等化増幅回路３に送出される。等”
化増幅回路３は、受光出力１ａを増幅して増幅出力３ａ
を出力するとともに、増幅出力３ａに比例する信号３ｂ
を出力する。利得制御回路６は、信号３ｂのレベルが一
定になるように受光素子１の増倍率を制御する増倍率制
御信号６ａを出力する。このように受光素子１の増倍率
が制御されるので、増幅出力３ａのレベルは入力光信号
のレベルにかかわらず一定になる。４は識別再生回路で
あり、増幅出力３ａに基づいて受光素子ＩＫ大入力た光
信号を識別再生し、再生信号４ａを出力する。５はＬＤ
駆動回路であり、再生信号４ａに基づいて発光素子２を
発光駆動する。８はフィルターであり、利得制御回路６
の出力の増倍率制御信号６ａを入力して監視制御信号と
なる低周波分のみを取り出し増幅回路９に送出する。こ
の増幅回路９及びフィルター８は増倍率制御信号から監
視制御信号９ａを抽出する監視制御信号抽出手段を形成
する。電力制御回訓７は監視制御信号９ａに応じて発光
素子２の駆動電力を制御する。(Embodiment) FIG. 1 is a block diagram showing an embodiment of a repeater of the present invention. First, the configuration will be described. Reference numeral 1 denotes a light receiving element that receives an optical signal inputted by an optical transmission method, and a light receiving output 1a of the light receiving element 1 is sent to an equalization amplifier circuit 3. etc"
The amplification circuit 3 amplifies the received light output 1a to provide an amplified output 3a.
and a signal 3b proportional to the amplified output 3a.
Output. The gain control circuit 6 outputs a multiplication factor control signal 6a that controls the multiplication factor of the light receiving element 1 so that the level of the signal 3b is constant. Since the multiplication factor of the light receiving element 1 is controlled in this way, the level of the amplified output 3a is constant regardless of the level of the input optical signal. Reference numeral 4 denotes an identification/reproduction circuit, which identifies and reproduces the optical signal input to the light receiving element IK based on the amplified output 3a, and outputs a reproduction signal 4a. 5 is LD
This is a drive circuit and drives the light emitting element 2 to emit light based on the reproduction signal 4a. 8 is a filter, and a gain control circuit 6
The output multiplication factor control signal 6a is inputted, and only the low frequency component which becomes the monitoring control signal is taken out and sent to the amplifier circuit 9. This amplifier circuit 9 and filter 8 form a supervisory control signal extraction means for extracting a supervisory control signal 9a from the multiplication factor control signal. The power control circuit 7 controls the driving power of the light emitting element 2 according to the supervisory control signal 9a.
次に動作を説明する。低周波（利得制御回路６０時定数
より長い周期）の駆動電力の制御に基づく監視制御信号
を送信すると、この実施例では、利得制御回路６が等化
増幅回路３の出力を一定にする様作動するから、フィル
ター８の出力にはこの低周波変動が得られ、これを増幅
し、監視制御信号９ａとして電力制御回路７に送出して
、発光素子２の駆動電力を制御し、発光素子２の発光エ
ネルギーを制御することにより監視制御信号を伝送する
。Next, the operation will be explained. When a supervisory control signal based on low frequency (period longer than the time constant of the gain control circuit 60) drive power control is transmitted, in this embodiment, the gain control circuit 6 operates to keep the output of the equalization amplifier circuit 3 constant. Therefore, this low frequency fluctuation is obtained in the output of the filter 8, which is amplified and sent to the power control circuit 7 as a monitoring control signal 9a to control the driving power of the light emitting element 2. A supervisory control signal is transmitted by controlling the emission energy.
（発明の効果）
以上説明してきたように本発明によれば、入力された光
信号を受光して増幅器で増幅し、該増幅出力に基づいて
光信号を識別再生すると共に、この再生信号に応じて発
光素子を駆動する中継器において、前記増幅器の増幅出
力を一定に揃える利得制御回路と、該利得制御回路の出
力の増倍率制御信号に基づいて監視制御信号を抽出する
監視制御信号抽出手段と、該監視制御信号抽出手段の監
視制御信号に応じて前記発光素子の駆動電力を制御する
電力制御回路とを設け、前記発光素子の発光エネルギー
を制御することにより監視制御信号を伝送するようにし
たことから、伝送符号等の伝送ライン側に依存すること
なく確実に監視制御信号を伝送することができる。(Effects of the Invention) As described above, according to the present invention, an input optical signal is received and amplified by an amplifier, the optical signal is identified and reproduced based on the amplified output, and the optical signal is identified and reproduced based on the amplified output. A repeater for driving a light emitting element with a gain control circuit that makes the amplified output of the amplifier constant, and a supervisory control signal extraction means that extracts a supervisory control signal based on a multiplication factor control signal of the output of the gain control circuit. and a power control circuit for controlling driving power of the light emitting element according to the supervisory control signal of the supervisory control signal extracting means, and the supervisory control signal is transmitted by controlling the light emission energy of the light emitting element. Therefore, the supervisory control signal can be reliably transmitted without depending on the transmission line side such as the transmission code.
第を図は本発明の一実施例の中継器のブロック図である
。
１・・・受光素子、２・・・発光素子、３・・・等化増
幅回路、４・・・識別再生回路、５・・・ＬＤ駆動回路
、６・・・利得制御回路、７・・・電力制御回路、８・
・・フィルター、９・・・増幅回路、１０・・・監視制
御回路。Figure 5 is a block diagram of a repeater according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Light receiving element, 2... Light emitting element, 3... Equalization amplifier circuit, 4... Identification reproducing circuit, 5... LD drive circuit, 6... Gain control circuit, 7...・Power control circuit, 8・
...Filter, 9...Amplification circuit, 10...Monitoring control circuit.
Claims (1)
出力を増幅器により増幅し、この増幅器の出力を識別再
生器に加えて前記光信号を識別再生し、前記識別再生器
の出力の再生信号に基づいて発光素子を駆動する中継器
において、 前記増幅器の増幅出力の出力値に応じた増幅率制御信号
により前記受光素子の増倍率を制御して前記増幅器の出
力値を一定に揃える利得制御回路と、前記増倍率制御信
号から監視制御信号を抽出する監視制御信号抽出手段と
、この監視制御信号抽出手段の出力の前記監視制御信号
に応じて前記発光素子の駆動電力を制御する電力制御回
路とを設け、該発光素子の発光エネルギーを制御するこ
とにより監視制御信号を伝送するようにしたことを特徴
とする中継器の監視制御信号伝送方式。[Claims] An input optical signal is received by a light receiving element, the output of this light receiving element is amplified by an amplifier, the output of this amplifier is applied to an identification regenerator to identify and regenerate the optical signal, and the optical signal is identified and regenerated. In a repeater that drives a light emitting element based on a reproduced signal of an output of a regenerator, the multiplication factor of the light receiving element is controlled by an amplification factor control signal corresponding to an output value of an amplified output of the amplifier to control the output value of the amplifier. a gain control circuit that adjusts the gain control circuit to a constant level, a supervisory control signal extracting means that extracts a supervisory control signal from the multiplication factor control signal, and a drive power of the light emitting element according to the supervisory control signal output from the supervisory control signal extracting means. 1. A method for transmitting a supervisory control signal for a repeater, comprising: a power control circuit for controlling the light emitting element; and transmitting a supervisory control signal by controlling the light emission energy of the light emitting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61124353A JPH0671235B2 (en) | 1986-05-28 | 1986-05-28 | Repeater supervisory control signal transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61124353A JPH0671235B2 (en) | 1986-05-28 | 1986-05-28 | Repeater supervisory control signal transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62279731A true JPS62279731A (en) | 1987-12-04 |
| JPH0671235B2 JPH0671235B2 (en) | 1994-09-07 |
Family
ID=14883284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61124353A Expired - Lifetime JPH0671235B2 (en) | 1986-05-28 | 1986-05-28 | Repeater supervisory control signal transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0671235B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02186846A (en) * | 1989-01-13 | 1990-07-23 | Nec Corp | Optical submarine repeater |
| JPH02223237A (en) * | 1989-02-23 | 1990-09-05 | Nec Corp | Optical submarine repeater |
| US5768011A (en) * | 1995-03-20 | 1998-06-16 | Fujitsu Limited | Optical amplifying repeater |
-
1986
- 1986-05-28 JP JP61124353A patent/JPH0671235B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02186846A (en) * | 1989-01-13 | 1990-07-23 | Nec Corp | Optical submarine repeater |
| JPH02223237A (en) * | 1989-02-23 | 1990-09-05 | Nec Corp | Optical submarine repeater |
| US5768011A (en) * | 1995-03-20 | 1998-06-16 | Fujitsu Limited | Optical amplifying repeater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0671235B2 (en) | 1994-09-07 |
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