JPS61126353U - - Google Patents
Info
- Publication number
- JPS61126353U JPS61126353U JP522285U JP522285U JPS61126353U JP S61126353 U JPS61126353 U JP S61126353U JP 522285 U JP522285 U JP 522285U JP 522285 U JP522285 U JP 522285U JP S61126353 U JPS61126353 U JP S61126353U
- Authority
- JP
- Japan
- Prior art keywords
- data bus
- data
- redundant
- terminal device
- bus
- 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 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Landscapes
- Bus Control (AREA)
- Hardware Redundancy (AREA)
Description
第１図は本考案によるデータバス端末装置を説
明するための図、第２図は、従来のデータバス端
末装置を説明するための図である。図中１は外部
機器、２はインタフエース回路、３は制御回路、
４は送信回路、５は受信回路、６は外部データバ
ス、７は結合トランス、８はドライバ／レシーバ
、９はエラーチエツク回路、１０は接続切替回路
、１１は内部データバスである。なお図中、同一
あるいは相当部分には同一符号を付して示してあ
る。
FIG. 1 is a diagram for explaining a data bus terminal device according to the present invention, and FIG. 2 is a diagram for explaining a conventional data bus terminal device. In the figure, 1 is an external device, 2 is an interface circuit, 3 is a control circuit,
4 is a transmitting circuit, 5 is a receiving circuit, 6 is an external data bus, 7 is a coupling transformer, 8 is a driver/receiver, 9 is an error check circuit, 10 is a connection switching circuit, and 11 is an internal data bus. In the drawings, the same or corresponding parts are denoted by the same reference numerals.
Claims (1)
バス制御装置とが、二重冗長度を持つデータバス
ラインを介して接続され、前記データバス端末装
置間及び前記バス制御装置が制御する二重冗長系
データバスシステムにおけるデータバス端末装置
において、通常動作時には、外部データバスに二
本の冗長系データバスを接続し、また、試験動作
時には、二本の冗長系データバスを内部データバ
スに接続し、かつデータバスシステムからデータ
バス端末装置を切り離す接続切替回路を有するこ
とを特徴とする二重冗長データバス端末装置。 A plurality of data bus terminal devices and at least one bus control device are connected via a data bus line with double redundancy, and double redundant system data controlled between the data bus terminal devices and by the bus control device is connected. In a data bus terminal device in a bus system, two redundant data buses are connected to the external data bus during normal operation, and two redundant data buses are connected to the internal data bus during test operation. A double redundant data bus terminal device, comprising a connection switching circuit that disconnects the data bus terminal device from a data bus system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP522285U JPS61126353U (en) | 1985-01-18 | 1985-01-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP522285U JPS61126353U (en) | 1985-01-18 | 1985-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61126353U true JPS61126353U (en) | 1986-08-08 |
Family
ID=30481527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP522285U Pending JPS61126353U (en) | 1985-01-18 | 1985-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61126353U (en) |
-
1985
- 1985-01-18 JP JP522285U patent/JPS61126353U/ja active Pending
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