JPH0371826B2 - - Google Patents
Info
- Publication number
- JPH0371826B2 JPH0371826B2 JP61096069A JP9606986A JPH0371826B2 JP H0371826 B2 JPH0371826 B2 JP H0371826B2 JP 61096069 A JP61096069 A JP 61096069A JP 9606986 A JP9606986 A JP 9606986A JP H0371826 B2 JPH0371826 B2 JP H0371826B2
- Authority
- JP
- Japan
- Prior art keywords
- line
- terminal control
- control device
- terminal
- switching
- 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
Links
- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Small-Scale Networks (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Description
【発明の詳細な説明】
〔概要〕
回線切替え装置の回路を、端末制御装置の動作
状態を調べる回線モニタと切替え指令を発信する
回線制御部と、回線制御部からの切替え指令を記
憶して直接回線切替えを行う回線パイパス部とに
分け、夫々別のプリント板に実装する。[Detailed Description of the Invention] [Summary] The circuit of the line switching device consists of a line monitor that checks the operating status of the terminal control device, a line control section that issues switching commands, and a circuit that stores and directly stores the switching commands from the line control section. It is divided into a line bypass section that performs line switching, and each is mounted on a separate printed board.
本発明は端末システムに於いて使用される回線
切替え装置の改良に関するものである。
The present invention relates to an improvement in a line switching device used in a terminal system.
第３図は従来の回線切替え装置の一例を示す図
である。
FIG. 3 is a diagram showing an example of a conventional line switching device.
図中、１Ａ，１Ｂは夫々端末制御装置、２A1
〜２A3は夫々端末制御装置１Ａに接続される端
末、２B1〜２B3は夫々端末制御装置１Ｂに接続
される端末、３Ａ，３Ｂは夫々回線、４は回線切
替え装置、１０はリレー、１０ａはリレー１０の
接点、１１はリレー１０のドライバ、１２はプロ
セツサ、１３は回線モニタ、１４はセレクタ、１
５ａ，１５ｂ，１５ｃ，１５ｄは夫々ドライバ／
レシーバ（DV／RV）である。尚以下全図を通
じ同一記号は同一対象物を表す。 In the figure, 1A and 1B are terminal control devices, respectively, and 2A 1
~ 2A3 are terminals connected to the terminal control device 1A, 2B1 to 2B3 are terminals connected to the terminal control device 1B, respectively, 3A and 3B are lines, 4 is a line switching device, 10 is a relay, 10a is a contact point of the relay 10, 11 is a driver of the relay 10, 12 is a processor, 13 is a line monitor, 14 is a selector, 1
5a, 15b, 15c, 15d are drivers/
It is a receiver (DV/RV). The same symbols represent the same objects throughout all the figures below.
多数のPOS端末（以下単に端末と云う）が一
販売店内に設けられる場合、端末制御装置を２台
設け、第３図に示す様に夫々の端末制御装置に複
数台の端末を接続する方法が採られる。尚端末制
御装置は共に通信回線を経由してホストコンピユ
ータに接続される。 When a large number of POS terminals (hereinafter simply referred to as terminals) are installed in one store, there is a method of installing two terminal control devices and connecting multiple terminals to each terminal control device as shown in Figure 3. taken. Note that both terminal control devices are connected to a host computer via a communication line.
通常時、端末制御装置１Ａは回線３Ａを経由し
て端末２A1〜２A3と通信し、端末制御装置１Ｂ
は回線３Ｂを経由して端末２B1〜２B3と通信す
る。 Normally, the terminal control device 1A communicates with the terminals 2A 1 to 2A 3 via the line 3A, and the terminal control device 1B
communicates with terminals 2B 1 to 2B 3 via line 3B.
回線切替え装置４は第３図に示す様に端末制御
装置と端末群間に設けられ、何れか一方の端末制
御装置がダウンした（例えば端末制御装置１Ａが
ダウン）時、此れを内蔵する回線モニタ１３によ
り検出する。此の検出信号を受けてプロセツサ１
２はリレー１０のドライバ１１を駆動してリレー
１０を動作させ、其の接点１０ａを開いて端末制
御装置１Ａと端末群２A1〜２A3間、及び端末制
御装置１Ｂと端末群２B1〜２B3間を切断する。 The line switching device 4 is provided between the terminal control device and the terminal group as shown in Fig. 3, and when one of the terminal control devices goes down (for example, the terminal control device 1A goes down), the line containing this device It is detected by the monitor 13. Processor 1 receives this detection signal.
2 drives the driver 11 of the relay 10 to operate the relay 10, and opens its contact 10a to connect the terminal control device 1A and the terminal group 2A 1 to 2A 3 , and between the terminal control device 1B and the terminal group 2B 1 to 2B. Cut between 3 .
同時にセレクタ１４を制御してドライバ／レシ
ーバ１５ｂの入出力をドライバ／レシーバ１５ｃ
の入出力に接続することにより端末制御装置１Ｂ
と端末群２A1〜２A3を接続する。更にドライ
バ／レシーバ１５ｂの入出力をドライバ／レシー
バ１５ｄの入出力に接続することにより端末制御
装置１Ｂと端末群２B1〜２B3を接続する。 At the same time, the selector 14 is controlled to change the input/output of the driver/receiver 15b to the driver/receiver 15c.
terminal control device 1B by connecting to the input/output of
and terminal groups 2A 1 to 2A 3 are connected. Furthermore, by connecting the input/output of the driver/receiver 15b to the input/output of the driver/receiver 15d, the terminal control device 1B and the terminal groups 2B 1 to 2B 3 are connected.
此の様に回線切替え装置４は故障した端末制御
装置１Ａをシステムから外し、生きている端末制
御装置１Ｂに取敢えず全端末を接続してシステム
動作の継続を計る。 In this manner, the line switching device 4 removes the failed terminal control device 1A from the system and temporarily connects all terminals to the alive terminal control device 1B to continue system operation.
然しながら従来の回線切替え装置４は其の構成
回路の総てが同一プリント板に実装されているた
め、若し其の構成回路の内の或る部品に障害が起
きて交換する場合、プリント板を装置から取り外
して障害部品を交換しなければならない。
However, in the conventional line switching device 4, all of its component circuits are mounted on the same printed board, so if a component in the component circuit fails and needs to be replaced, the printed board must be replaced. The faulty part must be replaced by removing it from the device.
従つて此の間システム全体が停止せざるを得な
いと云う欠点があつた。 Therefore, there was a drawback that the entire system had to be stopped during this time.
上記問題点は第１図の原理図に示す様に端末制
御装置１Ａに端末群２A1〜２Anを、端末制御装
置１Ｂに端末群２B1〜２Boを夫々接続し、端末
制御装置の何れかに障害が発生した時、障害が発
生した端末制御装置に属する端末群を正常動作中
の他端末制御装置に切替え接続する回線切替え装
置４０に於いて、端末制御装置１Ａ及び１Ｂが正
常動作を行つているか否かを検出する回線モニタ
１３と回線モニタ１３の出力信号により切替え指
令を発生するプロセツサ１２からなる回線制御部
２０を一つのプリント板に実装し、回線制御部２
０から出力される切替え指令を格納するメモリ１
６及び直接回線切替えを行う回線バイパス部３０
を別のプリント板に実装することにより解決され
る。
The above problem is solved by connecting the terminal groups 2A 1 to 2A n to the terminal control device 1A and the terminal groups 2B 1 to 2B o to the terminal control device 1B, respectively, as shown in the principle diagram of FIG. When a fault occurs, the terminal control devices 1A and 1B operate normally in the line switching device 40 that switches and connects the terminal group belonging to the faulty terminal control device to another normally operating terminal control device. The line control unit 20, which includes a line monitor 13 that detects whether or not the line is running, and a processor 12 that generates a switching command based on the output signal of the line monitor 13, is mounted on a single printed board.
Memory 1 that stores switching commands output from 0
6 and a line bypass unit 30 that performs direct line switching
This problem can be solved by mounting it on a separate printed board.
本発明に依ると回線切替え装置４０を部品点数
の多い回線制御部２０と、回線制御部２０からの
切替え指令を格納するメモリ１６を有する直接回
線切替えを行う部品点数の少ない回線パイパス部
３０を夫々別のプリント板に実装した構成を取る
ので、回線制御部２０のプリント板を装置から修
理の為に引き出してもシステムダウンにならな
い。
According to the present invention, the line switching device 40 is divided into a line control unit 20 with a large number of parts and a line bypass unit 30 with a small number of parts, which performs direct line switching and has a memory 16 for storing switching commands from the line control unit 20. Since the configuration is implemented in a separate printed board, even if the printed board of the line control section 20 is pulled out of the device for repair, the system will not go down.
第２図は本発明に依る回線切替え装置の回路分
割方式の一実施例を示す図である。
FIG. 2 is a diagram showing an embodiment of a circuit division system for a line switching device according to the present invention.
図中、１６はメモリ、２０は回線制御部、３０
回線バイパス部、４０は本発明による回線切替え
装置である。 In the figure, 16 is a memory, 20 is a line control unit, 30
The line bypass section 40 is a line switching device according to the present invention.
第２図から明らかな様に本発明による回線切替
え装置４０では従来の回線切替え装置４の回路を
回線制御部２０と回線バイパス部３０に区分し、
且つ回線バイパス部３０内にメモリ１６を設け
た。 As is clear from FIG. 2, in the line switching device 40 according to the present invention, the circuit of the conventional line switching device 4 is divided into a line control section 20 and a line bypass section 30.
In addition, a memory 16 is provided within the line bypass section 30.
回線制御部２０には端末制御装置の監視を行う
回線モニタ１３とプロセツサ１２を実装する。 The line control unit 20 is equipped with a line monitor 13 and a processor 12 for monitoring the terminal control device.
回線バイパス部３０には直接回線切替えに関与
する回路部分のみを実装し、更に前述した様にメ
モリ１６を実装し、回線制御部２０内のプロセツ
サ１２の出力信号を一旦メモリ１６に格納した
後、ドライバ１１、及びセレクタ１４を駆動す
る。 The line bypass unit 30 is equipped with only the circuit portion directly involved in line switching, and is further equipped with the memory 16 as described above, and after temporarily storing the output signal of the processor 12 in the line control unit 20 in the memory 16, The driver 11 and selector 14 are driven.
本発明による回線切替え装置４０では部品点数
が大変多い回線制御部２０を一つのプリント板に
実装し、残余の部品点数が少なく而も直接回線切
替えに関与する部品のみを別の一つのプリント板
に実装する。 In the line switching device 40 according to the present invention, the line control unit 20, which has a large number of parts, is mounted on one printed board, and only the remaining parts, which have a small number of parts and are directly involved in line switching, are mounted on another printed board. Implement.
従つて部品点数が大変多い回線制御部２０を装
置から引出しても回線バイパス部３０は内蔵メモ
リ１６により回線制御部２０を装置から引出す前
の接続状態を継続するので、システムダウンを起
こすことはない。 Therefore, even if the line control unit 20, which has a large number of parts, is pulled out of the device, the line bypass unit 30 uses the built-in memory 16 to maintain the connection state that was in place before the line control unit 20 was pulled out of the device, so system failure will not occur. .
以上詳細に説明した様に本発明によれば、部品
点数が大変多い回線制御部を装置から引出しても
システムの接続状態は変わらないのでシステムダ
ウンを起こさないと云う大きい効果がある。
As described in detail above, the present invention has the great effect that even if a line control unit with a large number of parts is removed from the device, the connection state of the system does not change, so that system failure does not occur.
第１図は本発明の原理図である。第２図は本発
明に依る回線切替え装置の回路分割方式の一実施
例を示す図である。第３図は従来の回線切替え装
置の一例を示す図である。
図中、１Ａ，１Ｂは夫々端末制御装置、２A1
〜２Anは夫々端末制御装置１Ａに接続される端
末、２B1〜２Boは夫々端末制御装置１Ｂに接続
される端末、３Ａ，３Ｂ夫々回線、４は回線切替
え装置、１０はリレー、１０ａはリレー１０の接
点、１１はリレー１０のドライバ、１２はプロセ
ツサ、１３は回線モニタ、１４はセレクタ、１５
ａ，１５ｂ，１５ｃ，１５ｄは夫々ドライバ／レ
シーバ（DV／RV）、１６はメモリ、２０は回線
制御部、３０は回線バイパス部、４０は本発明に
よる回線切替え装置である。
FIG. 1 is a diagram showing the principle of the present invention. FIG. 2 is a diagram showing an embodiment of a circuit division system for a line switching device according to the present invention. FIG. 3 is a diagram showing an example of a conventional line switching device. In the figure, 1A and 1B are terminal control devices, respectively, and 2A 1
~2A n are terminals connected to the terminal control device 1A, 2B 1 to 2B o are terminals connected to the terminal control device 1B, lines 3A and 3B are each, 4 is a line switching device, 10 is a relay, and 10a is a Contact point of relay 10, 11 is driver of relay 10, 12 is processor, 13 is line monitor, 14 is selector, 15
Reference numerals a, 15b, 15c, and 15d are drivers/receivers (DV/RV), 16 is a memory, 20 is a line control section, 30 is a line bypass section, and 40 is a line switching device according to the present invention.
Claims (1)
Anを、 第２の端末制御装置１Ｂに端末群２B1〜２Bo
を夫々接続し、 該端末制御装置の何れかに障害が発生した時、
障害が発生した該端末制御装置に属する該端末群
を正常動作中の他端末制御装置に切替え接続する
回線切替え装置４０に於いて、 該第１、第２の端末制御装置１Ａ及び１Ｂが正
常動作を行つているか否かを検出する回線モニタ
１３と該回線モニタ１３の出力信号により切替え
指令を発信するプロセツサ１２からなる回線制御
部２０を一つのプリント板に実装し、 該回線制御部２０から出力される切替え指令を
格納するメモリ１６、及び直接回線切替えを行う
回線バイパス部３０を別のプリント板に実装する
ことを特徴とする回線切替え装置の回路分割方
式。[Claims] 1. The first terminal control device 1A has a terminal group 2A 1 to 2.
A n to the second terminal control device 1B terminal group 2B 1 to 2B o
are connected to each other, and when a failure occurs in any of the terminal control devices,
In the line switching device 40 that switches and connects the terminal group belonging to the terminal control device in which a failure has occurred to another normally operating terminal control device, the first and second terminal control devices 1A and 1B are in normal operation. A line control unit 20 is mounted on a single printed circuit board, and includes a line monitor 13 that detects whether or not the line monitor 13 is performing switching, and a processor 12 that issues a switching command based on the output signal of the line monitor 13. A circuit division method for a line switching device characterized in that a memory 16 for storing switching commands to be performed and a line bypass unit 30 for direct line switching are mounted on separate printed boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61096069A JPS62252244A (en) | 1986-04-25 | 1986-04-25 | Dividing system for circuit of line switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61096069A JPS62252244A (en) | 1986-04-25 | 1986-04-25 | Dividing system for circuit of line switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62252244A JPS62252244A (en) | 1987-11-04 |
| JPH0371826B2 true JPH0371826B2 (en) | 1991-11-14 |
Family
ID=14155127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61096069A Granted JPS62252244A (en) | 1986-04-25 | 1986-04-25 | Dividing system for circuit of line switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62252244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130135783A (en) * | 2012-06-01 | 2013-12-11 | 에스티엑스 프랑스 에스에이 | Ship provided with at least one shaft line equipped with a helical pump propeller |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02121434A (en) * | 1988-10-31 | 1990-05-09 | Mitsubishi Electric Corp | Local area network |
-
1986
- 1986-04-25 JP JP61096069A patent/JPS62252244A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130135783A (en) * | 2012-06-01 | 2013-12-11 | 에스티엑스 프랑스 에스에이 | Ship provided with at least one shaft line equipped with a helical pump propeller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62252244A (en) | 1987-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |