CN205302091U - A multi -serial port expansion board for CPCI system - Google Patents
A multi -serial port expansion board for CPCI system Download PDFInfo
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- CN205302091U CN205302091U CN201521128455.8U CN201521128455U CN205302091U CN 205302091 U CN205302091 U CN 205302091U CN 201521128455 U CN201521128455 U CN 201521128455U CN 205302091 U CN205302091 U CN 205302091U
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Abstract
The utility creatively provides a multi -serial port expansion board for CPCI system, including the expansion board body, a plurality of USB -HUB of installation, USB change 232 chips of serial ports, LED pilot lamp and DB78 connector on the expansion board body, a USB is all connected to a plurality of USB mouths of USB -HUB is changeed 232 chips of serial ports, and the serial ports output that USB changes 232 chips of serial ports passes through 232 commentaries on classics RS232422485 jumper connection DB78 connectors on the expansion board body, and USB changes the serial ports output of 232 chips of serial ports and still connects the LED pilot lamp, the expansion board body is for passing the board behind the CPCI system host board. Compared with the prior art, the utility model discloses the creation has following advantage: pass the board after through and carry out serial port expansion, saved the system space, can use a CPCI system device groove, improved the scalability of system, in the aspect of the cost, if use 6U CPCI multi -serial port card to carry out serial port expansion, in order to the back biography board of a supporting serial ports card, the totality gets off, and the cost will exceed a lot.
Description
Technical field
The invention belongs to CPCI systems technology field, especially relates to a kind of multi-serial extension plate for CPCI system.
Background technology
Serial communication is applied widely in Industry Control, and in CPCI system, multi-serial extension card is applied widely, and there is the multi-serial extension card of 3U and the 6U of oneself in each CPCI board producer, generally in the majority with 4 tunnels or 8 tunnels.
Multi-serial extension card mainly expand on cpci bus multi-channel serial port for on-the-spot other equipment rooms RS232/422/485 communication.
Traditional CPCI Multi-serial port application is all by inserting serial port board realization in system chassis, often inserts one piece of card and will take an equipment slots position. And CPCI system groove position is limited, sometimes when the peripheral hardware needing extension is relatively more time, groove position is just relatively nervous.
Summary of the invention
In view of this, the invention is directed to a kind of multi-serial extension plate for CPCI system, carries out serial ports expansion by rear biography plate, solves the problem that groove position is nervous.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
A kind of multi-serial extension plate for CPCI system, including expansion board body, described expansion board body is installed multiple USB-HUB, USB and turns serial ports 232 chip, LED light and DB78 adapter, multiple USB port of described USB-HUB are all connected with a USB and turn serial ports 232 chip, USB turns the serial ports outfan of serial ports 232 chip and connects DB78 adapter by 232 RS 232/422/485 wire jumpers on expansion board body, and USB turns the serial ports outfan of serial ports 232 chip and is also connected with LED light.
Further, described USB turns serial ports 232 chip selection CH340T chip.
Further, 4 USB port described expansion board body being installed 2 USB-HUB, each USB-HUB are all connected with a USB and turn serial ports 232 chip.
Further, described expansion board body is biography plate after CPCI system board.
Relative to prior art, the invention has the advantage that
Carry out serial ports expansion by rear biography plate, be first save system space, it is possible to less with a CPCI system equipment groove, improve the extensibility of system;
Becoming present aspect, if using 6UCPCI multi-serial-port card to carry out serial ports expansion, also wanting the rear biography plate of supporting one piece of serial port board, totally getting off, cost to exceed a lot; And after using mainboard, pass the mode of plate, it is possible to the cost extending 8 roads product mouths is reduced by 50%.
Accompanying drawing explanation
The accompanying drawing constituting the part of the invention is used for providing being further appreciated by the invention, and the schematic description and description of the invention is used for explaining the invention, is not intended that the improper restriction to the invention. In the accompanying drawings:
Fig. 1 is the structured flowchart of the multi-serial extension plate described in the invention embodiment for CPCI system.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the invention and the feature in embodiment can be mutually combined.
Describe the invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of multi-serial extension plate for CPCI system, as shown in Figure 1, including expansion board body, described expansion board body is installed multiple USB-HUB, USB and turns serial ports 232 chip, LED light and DB78 adapter, multiple USB port of described USB-HUB are all connected with a USB and turn serial ports 232 chip, USB turns the serial ports outfan of serial ports 232 chip and connects DB78 adapter by 232 RS 232/422/485 wire jumpers on expansion board body, and USB turns the serial ports outfan of serial ports 232 chip and is also connected with LED light.
Described USB turns serial ports 232 chip and selects CH340T chip.
4 USB port installing 2 USB-HUB, each USB-HUB on described expansion board body are all connected with a USB and turn serial ports 232 chip.
Described expansion board body is biography plate after CPCI system board.
The USBHUB of the invention completes the conversion of multichannel USB, and USB turns serial ports 232 chip and completes the usb signal conversion to UART signal, and LED light has been used for the instruction of serial ports receiving and transmitting signal, and DB78 adapter realizes external 8 road rs 232 serial interface signal outputs; The switching of RS232/422/485 level output is realized by wire jumper on plate.
The USB of more than 2 situation about exporting all can be had for cabling after CPCI system board, we select a USB-HUB that the USB interface of rear cabling is extended to 10 tunnels or 12 tunnels, 8 tunnels therein are designed to USB-UART circuit, realized the extension of serial ports by USB, after system board, pass plate realize the extension of 8 road serial ports.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment of making, equivalent replacement, improvement etc., should be included within the protection domain of the invention.
Claims (4)
1. the multi-serial extension plate for CPCI system, it is characterized in that: include expansion board body, described expansion board body is installed multiple USB-HUB, USB and turns serial ports 232 chip, LED light and DB78 adapter, multiple USB port of described USB-HUB are all connected with a USB and turn serial ports 232 chip, USB turns the serial ports outfan of serial ports 232 chip and connects DB78 adapter by 232 RS 232/422/485 wire jumpers on expansion board body, and USB turns the serial ports outfan of serial ports 232 chip and is also connected with LED light.
2. the multi-serial extension plate for CPCI system according to claim 1, it is characterised in that: described USB turns serial ports 232 chip and selects CH340T chip.
3. the multi-serial extension plate for CPCI system according to claim 1, it is characterised in that: 4 USB port installing 2 USB-HUB, each USB-HUB on described expansion board body are all connected with a USB and turn serial ports 232 chip.
4. the multi-serial extension plate for CPCI system according to claim 1, it is characterised in that: described expansion board body is biography plate after CPCI system board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128455.8U CN205302091U (en) | 2015-12-28 | 2015-12-28 | A multi -serial port expansion board for CPCI system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128455.8U CN205302091U (en) | 2015-12-28 | 2015-12-28 | A multi -serial port expansion board for CPCI system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205302091U true CN205302091U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521128455.8U Active CN205302091U (en) | 2015-12-28 | 2015-12-28 | A multi -serial port expansion board for CPCI system |
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| Country | Link |
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| CN (1) | CN205302091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446431A (en) * | 2015-12-28 | 2016-03-30 | 天津浩丞恒通科技有限公司 | Multi-serial-port expansion board used for CPCI system |
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2015
- 2015-12-28 CN CN201521128455.8U patent/CN205302091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446431A (en) * | 2015-12-28 | 2016-03-30 | 天津浩丞恒通科技有限公司 | Multi-serial-port expansion board used for CPCI system |
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