JPH044347U - - Google Patents
Info
- Publication number
- JPH044347U JPH044347U JP4261790U JP4261790U JPH044347U JP H044347 U JPH044347 U JP H044347U JP 4261790 U JP4261790 U JP 4261790U JP 4261790 U JP4261790 U JP 4261790U JP H044347 U JPH044347 U JP H044347U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- main device
- main
- backup
- switching signal
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Hardware Redundancy (AREA)
Description
第１図は、本考案の一実施例に係る二重化装置
の切替え機及び切替え制御機のハードウエア構成
詳細図、第２図は、切替え機の切替えの為の回路
図、第３図は、切替え制御機のＲＯＭに格納され
たプログラムのフローチヤート、第４図は、タイ
マー割込み処理のフローチヤート、第５図は、通
信制御装置のハードウエア構成図である。
８…強制切替えスイツチ、１０…切替え装置、
２０…メイン装置、４０…バツクアツプ装置。
Fig. 1 is a detailed diagram of the hardware configuration of a switching machine and a switching controller of a duplexing device according to an embodiment of the present invention, Fig. 2 is a circuit diagram for switching the switching machine, and Fig. 3 is a diagram of the switching machine. FIG. 4 is a flowchart of the program stored in the ROM of the controller, FIG. 4 is a flowchart of timer interrupt processing, and FIG. 5 is a hardware configuration diagram of the communication control device. 8...forced changeover switch, 10...switching device,
20...Main device, 40...Backup device.
Claims (1)
ツプ装置、 切替え信号が入力された場合、メイン装置又は
バツクアツプ装置のいずれかへ切替えて選択を行
う切替え装置、 を備えた二重化装置において、 切替え装置に強制切替えスイツチを設け、切替
え信号の有無にかかわらず強制的に選択を行い得
ることを特徴とする二重化装置。[Scope of claim for utility model registration] A main device that performs predetermined processing, a backup device that has the same processing functions as the main device, and when a switching signal is input, switches to either the main device or the backup device and selects the main device. A duplex device comprising a switching device, characterized in that the switching device is provided with a forced changeover switch so that selection can be forcibly made regardless of the presence or absence of a switching signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4261790U JPH044347U (en) | 1990-04-20 | 1990-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4261790U JPH044347U (en) | 1990-04-20 | 1990-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH044347U true JPH044347U (en) | 1992-01-16 |
Family
ID=31554316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4261790U Pending JPH044347U (en) | 1990-04-20 | 1990-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044347U (en) |
-
1990
- 1990-04-20 JP JP4261790U patent/JPH044347U/ja active Pending