JPH01192230A - Feeder switching circuit - Google Patents
Feeder switching circuitInfo
- Publication number
- JPH01192230A JPH01192230A JP1793588A JP1793588A JPH01192230A JP H01192230 A JPH01192230 A JP H01192230A JP 1793588 A JP1793588 A JP 1793588A JP 1793588 A JP1793588 A JP 1793588A JP H01192230 A JPH01192230 A JP H01192230A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- power supply
- switching circuit
- feeder
- feeders
- 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
Links
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は給電路分岐回路に関し、特に甲継伝送路金分岐
する分岐装置の給電路切替回路に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power supply line branching circuit, and more particularly to a power supply line switching circuit for a branching device that branches an inverted transmission line.
第４図は従来の給電路分岐回路の一例を示す回路図で、
３分岐路を有する給電路分岐回路を示す。Figure 4 is a circuit diagram showing an example of a conventional feed line branch circuit.
Figure 3 shows a feeder branch circuit with three branches.
ま几、第５図は、第４図の従来の給電路分岐回路を利用
しｔ中継伝送路の分岐システムの一例を示す構成図であ
る。第４図において、給電路Ａと給電路Ｂとは接続され
、ま九給電路Ｃは接地に接続されている。FIG. 5 is a block diagram showing an example of a branching system for a T-relay transmission line using the conventional power supply line branching circuit shown in FIG. 4. In FIG. 4, feed line A and feed line B are connected, and feed line C is connected to ground.
ｇ４図の給電路切替回路を使用して第５図の中継伝送路
の分岐システムｔ−構成した場合、給電路Ａは給電路１
１を介して給電装置８に接続され、給電路Ｂは給電路１
３？介して給電装置１０に接続され、さらに給電装置８
．１０は接地に接続されて互いに逆極性になるように給
電される。また給電路Ｃは給電路１２ｔ−介して給電装
置９に接続され、給電装置９はさらに接地に接続され、
所足の電流を流すように給電される。中継装置１７〜２
２は中継伝送路の分岐システムにおける中継装置である
。If the branching system of the relay transmission line shown in Figure 5 is constructed using the feed line switching circuit shown in Figure g4, the feed line A is the feed line 1.
1, and the power supply path B is connected to the power supply device 8 through the power supply path 1.
3? is connected to the power supply device 10 via the power supply device 8
．． 10 are connected to ground and are supplied with power so that the polarities are opposite to each other. Further, the power supply path C is connected to the power supply device 9 via the power supply path 12t, and the power supply device 9 is further connected to ground,
Power is supplied so that the required current flows. Relay device 17-2
Reference numeral 2 denotes a relay device in a relay transmission line branching system.
上述した従来の給電路切替回路は、中継伝送路の分岐シ
ステムｔ−Ｗ成し九とき、給電路のいずれか、友とえば
第５図の例では給電路人に接続され友給電路１１、ｔ７
ｔは給電路Ｂに接続された給電路１３が切断される障害
が発生すると３分岐路すべての通信が不可能とな夛、ま
た、給電ｗｒＣは分岐装置内で接地に接続されているこ
とから、容量値上測定することによシ切断箇所を探索す
ることができない欠点がある。When the above-mentioned conventional power supply line switching circuit establishes a relay transmission line branching system t-W, one of the power supply lines, for example, in the example of FIG. 5, is connected to the power supply line 11, t7
t is because if a fault occurs in which power supply line 13 connected to power supply line B is disconnected, communication on all three branch lines will be impossible, and because power supply line WRC is connected to ground within the branch device. However, there is a drawback that it is not possible to search for the cut point by measuring the capacitance value.
本発明の回路は、中継伝送路を分岐する分岐装置の給電
路切替回路において、各中継伝送路の各給電路にリレー
用電磁石コイルを直列に挿入するとともに前記各給電路
の分岐結合点と接地間に前記リレー用電磁石に対応して
駆動される前記リレー用電磁石と同数のリレーを挿入し
九特徴を有する。The circuit of the present invention is a feed line switching circuit of a branching device that branches relay transmission lines, in which a relay electromagnetic coil is inserted in series in each feed line of each relay transmission line, and the branch connection point of each feed line is grounded. The same number of relays as the relay electromagnets driven corresponding to the relay electromagnets are inserted between the relay electromagnets.
また、本発明の回路は前記各中継伝送路の各給電路のう
ちのひとつの給電路には前記リレー用電磁石コイルを挿
入せずま九分岐結合点と接地間にも前記リレー用電磁石
コイルで駆動されるリレーを挿入しない特徴を有する。Further, in the circuit of the present invention, the electromagnetic coil for relay is not inserted into one of the feed paths of each of the relay transmission lines, but the electromagnetic coil for relay is also inserted between the nine-branch connection point and the ground. It has the feature of not inserting a driven relay.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例の回路図で、３給電路を有す
る給電路切替回路を示す。第１図に示す実施例は給電路
Ａ、Ｃに直列挿入したリレー用電磁石コイル１．２、リ
レー４．５を備えて構成される。給電路Ａ、ＢおよびＣ
は互いに並列に接続されｔリレー４および５に分岐接合
点Ｐｔ−介して接続され、リレー４．５は他端を接地さ
れている。FIG. 1 is a circuit diagram of an embodiment of the present invention, showing a feed path switching circuit having three feed paths. The embodiment shown in FIG. 1 is constructed with a relay electromagnetic coil 1.2 and a relay 4.5 inserted in series in power supply paths A and C. Feed lines A, B and C
are connected in parallel to each other and connected to relays 4 and 5 via a branch junction Pt-, relay 4.5 having its other end grounded.
リレー用電出石コイル１は、リレー４１″、ま友すレー
用電ａ石コイル２はリレー５１−駆動し、各リレーは給
電路に電流が流れていないときにはオフ状態、給電路に
所定の電流が流れているときオン状態になる。第２図は
第１図の実施例の給電切替回ｗｒを使用しｔ中継伝送路
の分岐システムを示す構成図、第３図は第２因の中継伝
送路の分岐システムの給電操作の一例を示す説明図であ
る。The power supply coil 1 for the relay drives the relay 41'', and the power supply coil 2 for the magic relay drives the relay 51, and each relay is in an OFF state when no current is flowing in the power supply path, and a predetermined current is applied to the power supply path. is in the ON state when . FIG. 2 is an explanatory diagram showing an example of a power supply operation of the road branching system.
第３図において、記号（３）は給電切替回路３の電圧、
（８）は給電装置８の電圧、（９）は給電装置９の電圧
、ＱＯ）は給電装置ｔＩＯの電圧、横軸は距離を示す。In Fig. 3, symbol (3) is the voltage of the power supply switching circuit 3;
(8) is the voltage of the power supply device 8, (9) is the voltage of the power supply device 9, QO) is the voltage of the power supply device tIO, and the horizontal axis represents the distance.
ｔｃ記号■〜■は操作手順管示す。操作内容は次のとお
シである。すなわち■の手順で給電装置８を負電圧に給
電する。ｔだし、リレー用電磁石コイルｌがリレー４を
オフ状態としない給電電流とする。■の手順で給電装置
９を正電圧に給電する。このとき、給電路１３→Ｂ→Ａ
−ｅｌｌにはリレー４をオン状態とする給電電流を流す
ようにし、まｔこのとき給電切替回路３の給電路Ａ、
ＢおよびＣｔ−接続した点は接地電圧となるようにする
Ｏ
次に手順■で給電装置ｉｔ９を所定の給電電流まで給電
し、手順■で給電装置８を所定の給電電流まで給電手順
■で給電装置１１０″Ｉｋ所定の給電電流まで給電する
。このとき、リレー用電磁石コイル２はリレー５ｔ−オ
ン状態とする。tc symbols ■ to ■ indicate operating procedures. The operation details are as follows. That is, the power supply device 8 is supplied with a negative voltage according to the procedure (2). At t, the electromagnetic coil l for the relay supplies a power supply current that does not turn off the relay 4. Supply power to the power supply device 9 with a positive voltage according to the procedure (2). At this time, power supply path 13→B→A
-ell is supplied with a power supply current that turns on the relay 4, and at this time, the power supply path A of the power supply switching circuit 3,
B and Ct - The connected point should be at ground voltage O Next, in step ①, power the power supply device it9 to the specified power supply current, and in step ③, power the power supply device 8 to the specified power supply current. Power is supplied to the device 110''Ik up to a predetermined power supply current. At this time, the relay electromagnetic coil 2 is turned on to the relay 5t.
給電オフは逆の手順によシ行なう。給電装置８と１０、
ま九は給電装置９．１０を使って給電オン・オフする手
順も上記手順と同様に行なうことができる。To turn off the power supply, follow the reverse procedure. power supply devices 8 and 10;
Also, the procedure for turning on and off the power supply using the power supply device 9.10 can be performed in the same manner as the above procedure.
次に給電路が切断される障害が発生した場合を考える。Next, consider the case where a failure occurs in which the power supply path is disconnected.
給電オン時、給電路１１が切断されたとすると、リレー
４はオフとなるが、リレー５はオン状態全保持するので
、給電路１２．１３は全く影響されず、端局１５と１６
間では通信が可能であシ、また給電路１２．１３のいず
れかひとつが切断されたときも、残少の給電路は全く影
響されず上記同様通信可能である。またこのとき残夛２
つの給電路を使っての給電オン・オフも前記手順と同様
に行なうことができる。If the power supply line 11 is disconnected when the power is on, the relay 4 will be turned off, but the relay 5 will remain on, so the power supply lines 12 and 13 will not be affected at all, and the terminal stations 15 and 16 will be disconnected.
Communication is possible between them, and even if any one of the power supply lines 12 and 13 is disconnected, the remaining power supply lines are not affected at all and communication is possible in the same way as above. At this time, the remnants 2
Power supply on/off using two power supply paths can also be performed in the same manner as the above procedure.
また、給電オフ時は各給電路は接地と絶縁されているた
め、容量障害点探索の手法を行うことができる。Furthermore, since each power supply path is insulated from the ground when the power supply is off, a method of searching for a capacitive fault point can be performed.
以上説明し九ように本発明は、リレー用電磁石とリレー
によって給電路を互いに独立化することにより、給電路
のひとつが切断される障害が発生しても残少の給電路は
その影響を全く受けずに通信を続行することができ、ま
た給電オフＱには各給電路は接地と絶縁されている比め
、容量障害点探索を行うことができるという効果がある
。As explained above, the present invention makes the power supply paths independent of each other using a relay electromagnet and a relay, so that even if a fault occurs in which one of the power supply paths is disconnected, the remaining power supply paths are completely free from the effects. Communication can be continued without being affected, and the power supply off Q has the effect that it is possible to search for a capacitive fault point compared to each power supply path being insulated from the ground.
第１図は本発明の給電路切替回路の一実施例上水す回路
図、第２図は第４図の実施例の給電切替回路を使用した
中継伝送路の分岐システムを示す構成図、第３図は第２
図の中継伝送路の分岐システムの給電操作の一例を示す
説明図、第４図は従来の給電切替回路の一例を示す回路
図、第５図は第４図の従来の給電切替回路を使用しｆｆ
ｉ’Ｐ線伝送路線分送路ステム上水す構成図である。
１．２・・・・・・リレー用電磁石コイル、３．７・・
・・・・給電路切替回路、４．５・・・・・・リレー、
８〜ｌＯ・・・・・・給電装置、１１〜１３・・・・・
・給電路、１４〜１６・・・・・・端局装置、１７〜２
２・・・・・・中継装置、２３〜２８・・・・・・伝送
路。
代理人 弁理士 内 原 晋
ｔ、 ２ −−−＝−リし一１ｆＪ鉢石コイル弄 ／
茜
第 ３１！ＩＩ
茅 ４Ｉ！ＩFIG. 1 is a water supply circuit diagram of an embodiment of the power supply switching circuit of the present invention, FIG. Figure 3 is the second
An explanatory diagram showing an example of the power feeding operation of the relay transmission line branching system shown in the figure, FIG. 4 is a circuit diagram showing an example of a conventional power feeding switching circuit, and FIG. ff
It is a block diagram of the i'P line transmission line branch line stem water supply. 1.2... Electromagnetic coil for relay, 3.7...
...Feed line switching circuit, 4.5...Relay,
8~1O...Power supply device, 11~13...
・Power supply line, 14-16...Terminal equipment, 17-2
2...Relay device, 23-28...Transmission line. Agent: Patent Attorney Susumu Uchihara, 2 ----=-Rishi 1fJ Hachiishi Coil /
Akane No. 31! II Kaya 4I! I
Claims (2)
において、各中継伝送路の各給電路にリレー用電磁石コ
イルを直列に挿入するとともに前記各給電路の分岐結合
点と接地間に前記リレー用電磁石に対応して駆動される
前記リレー用電磁石と同数のリレーを挿入したことを特
徴とする給電路切替回路。(1) In a feed line switching circuit of a branching device that branches relay transmission lines, a relay electromagnetic coil is inserted in series in each feed line of each relay transmission line, and the A power supply path switching circuit characterized in that the same number of relays as the relay electromagnets are inserted to be driven in correspondence with the relay electromagnets.
電路には前記リレー用電磁石コイルを挿入せずまた分岐
結合点と接地間にも前記リレー用電磁石コイルで駆動さ
れるリレーを挿入しないことを特徴とする特許請求範囲
第（１）項記載の給電路切替回路。(2) The electromagnetic coil for relay is not inserted into one of the feed lines of each relay transmission line, and a relay driven by the electromagnetic coil for relay is not inserted between the branch connection point and the ground. The power supply path switching circuit according to claim (1), wherein the power supply path switching circuit is not inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1793588A JPH01192230A (en) | 1988-01-27 | 1988-01-27 | Feeder switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1793588A JPH01192230A (en) | 1988-01-27 | 1988-01-27 | Feeder switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01192230A true JPH01192230A (en) | 1989-08-02 |
Family
ID=11957634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1793588A Pending JPH01192230A (en) | 1988-01-27 | 1988-01-27 | Feeder switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01192230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334879A (en) * | 1991-01-17 | 1994-08-02 | Fujitsu Limited | Feeding system and feeding method for a submarine cable communication system |
-
1988
- 1988-01-27 JP JP1793588A patent/JPH01192230A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334879A (en) * | 1991-01-17 | 1994-08-02 | Fujitsu Limited | Feeding system and feeding method for a submarine cable communication system |
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