CN216901487U - 5Mbps multi-protocol serial port card of PMC specification - Google Patents
5Mbps multi-protocol serial port card of PMC specification Download PDFInfo
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- CN216901487U CN216901487U CN202123228380.9U CN202123228380U CN216901487U CN 216901487 U CN216901487 U CN 216901487U CN 202123228380 U CN202123228380 U CN 202123228380U CN 216901487 U CN216901487 U CN 216901487U
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Abstract
The utility model provides a PMC specification 5Mbps multi-protocol serial port card, which comprises: the integrated circuit board provides 8 independent serial ports, adopts the PCI-to-UART bridge piece as a core processing device to realize the conversion between the PCI bus and the UART, and realizes the GPIO interface by the complex programmable logic device. And the complex programmable logic device realizes overall control. The RS-422/RS-485/RS-232 multi-protocol transceiver realizes 8-path 5M RS-422/RS-485/RS-232 serial port communication; the performance and the function of the board card can meet the requirements of the current market.
Description
Technical Field
The utility model relates to the fields of banking, finance, securities, telecommunication, industrial control and the like, is an important hardware component of a computer multi-user communication control system, and particularly relates to a 5Mbps multi-protocol serial port card with a PMC specification.
Background
Universal Asynchronous Receiver/Transmitter (UART) is commonly referred to as UART. It converts data to be transmitted between serial communication and parallel communication. As a chip for converting a parallel input signal into a serial output signal, a UART is usually integrated into a connection of other communication interfaces.
With the development of the banking, finance, security, telecommunication and industrial control industries, the requirements of serial port communication speed, interface quantity and type are increasing day by day, and the traditional single-protocol serial port bus of 115200bps is difficult to meet the development requirements of systems. Therefore, there is a need to develop higher speed, higher number, and higher integration of the serial port cards, 8 channel multi-protocol serial port cards at 5Mbps, and even 16 channel multi-protocol serial port cards at 10 Mbps. Therefore, the development of the 5Mbps multi-protocol serial port card has great significance.
Disclosure of Invention
In order to solve the requirements of the prior related field on the serial port transmission rate, the number of channels and the multi-protocol and meet the development requirement, the utility model provides a 5Mbps multi-protocol serial port card of a PMC specification. The board card adopts 8 independent serial ports to realize the compatible communication electrical standard of 5Mbps RS-422, RS-232 and RS-485. The PMC standard is designed, and the PMC standard can be applied to all PMC industrial control computers.
The 5Mbps multi-protocol serial port card of the PMC specification comprises: the system comprises a PCI bus interface, a PCI-to-UART bridge plate, a complex programmable logic device, an RS-422/RS-485/RS-232 multi-protocol transceiver, a power management module and a connector;
the PCI-to-UART bridge chip is connected with the complex programmable logic device, the RS-422/RS-485/RS-232 multi-protocol transceiver and the power management module, the PCI-to-UART bridge chip realizes the conversion between the PCI bus and the UART, and the complex programmable logic device realizes the GPIO interface;
the complex programmable logic device is connected with the PCI-to-UART bridge chip, the RS-422/RS-485/RS-232 multi-protocol transceiver and the power management module to realize overall control;
and the RS-422/RS-485/RS-232 multi-protocol transceiver is connected with the connector, the power management module, the complex programmable logic device and the PCI-to-UART bridge chip. 8 RS-422/RS-485/RS-232 multi-protocol transceivers, and 8 paths of 5M RS-422/RS-485/RS-232 serial port communication are realized;
the power management module is connected with the PCI bus interface, the PCI-to-UART bridge chip, the complex programmable logic device and the RS-422/RS-485/RS-232 multi-protocol transceiver and is used for providing various required voltages for the 5Mbps multi-protocol serial port card of the PMC specification;
and the connector is connected with the RS-422/RS-485/RS-232 multi-protocol transceiver and is an external UART interface connector of the 5Mbps multi-protocol serial port card of the PMC specification.
The RS-422/RS-485/RS-232 multi-protocol transceiver comprises: the device comprises a 5Mbps multi-protocol serial port transceiving module and a matching resistance switching module;
the RS-422/RS-485/RS-232 multi-protocol transceiver is connected with the PCI-to-UART bridge chip, so that the receiving and the sending of a 5Mbps multi-protocol serial port are realized;
the RS-422/RS-485/RS-232 multi-protocol transceiver consists of 8 groups of 5Mbps multi-protocol serial port transceiver modules and a matching resistance switching module and is used for realizing the data transceiving of 8-channel serial ports.
The utility model has the beneficial effects that: the 5Mbps multi-protocol serial port card with the PMC specification is designed into the PMC specification, the card provides 8 independent serial port channels, a PCI-to-UART bridge plate is used as a core processing device, the conversion between a PCI bus and UART is realized, and a GPIO interface is realized by a complex programmable logic device. And the complex programmable logic device realizes overall control. The RS-422/RS-485/RS-232 multi-protocol transceiver realizes 8-path 5M RS-422/RS-485/RS-232 serial port communication; the performance and the function of the board card can meet the requirements of the current market.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a block diagram of a 5Mbps multi-protocol serial port card bus communication board card of the PMC specification provided by the present invention.
Detailed Description
As shown in fig. 1, the present invention provides a block diagram of a 5Mbps multi-protocol serial port card bus communication board card with PMC specification. 5Mbps multiprotocol serial port card bus communication board card of PMC specification includes: the system comprises a PCI bus interface 11, a PCI-to-UART bridge plate 12, a complex programmable logic device 14, an RS-422/RS-485/RS-232 multi-protocol transceiver 15, a power management module 13 and a connector 16;
the PCI-to-UART bridge chip 12 is connected with the complex programmable logic device 14, the RS-422/RS-485/RS-232 multi-protocol transceiver 15 and the power management module 13, the PCI-to-UART bridge chip 12 realizes the conversion between the PCI bus and the UART, and the complex programmable logic device 14 realizes the GPIO interface;
the host interface is a PCI bus interface and the PCI to UART bridge 12 is implemented by an XR17D158IV bridge.
The complex programmable logic device 14 is connected with the PCI-to-UART bridge chip 12, the RS-422/RS-485/RS-232 multi-protocol transceiver 15 and the power management module 13 to realize the overall control.
The RS-422/RS-485/RS-232 multi-protocol transceiver 15 is connected with the connector 16, the power management module 13, the complex programmable logic device 14 and the PCI-to-UART bridge piece 12 to realize level conversion and serial port signal output.
And the power management module 13 is connected with the PCI bus interface 11, the PCI-to-UART bridge 12, the complex programmable logic device 14, the RS-422/RS-485/RS-232 multi-protocol transceiver 15 and used for providing various voltages required by the 5Mbps multi-protocol serial port card of the PMC specification.
The connector 16 is connected with the RS-422/RS-485/RS-232 multi-protocol transceiver 15 and is an external UART interface connector of a 5Mbps multi-protocol serial port card of the PMC specification.
The utility model has the beneficial effects that: the 5Mbps multi-protocol serial port card with the PMC specification is designed into the PMC specification, the card provides 8 independent serial port channels, a PCI-to-UART bridge plate is used as a core processing device, the conversion between a PCI bus and UART is realized, and a GPIO interface is realized by a complex programmable logic device. And the complex programmable logic device realizes overall control. The RS-422/RS-485/RS-232 multi-protocol transceiver realizes 8-path 5M RS-422/RS-485/RS-232 serial port communication; the performance and the function of the board card can meet the requirements of the current market.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the utility model without departing from the spirit and scope of the utility model.
Claims (2)
1. The utility model provides a 5Mbps multiprotocol serial port card of PMC specification which characterized in that:
the 5Mbps multi-protocol serial port card of the PMC specification comprises: the system comprises a PCI bus interface, a PCI-to-UART bridge plate, a complex programmable logic device, an RS-422/RS-485/RS-232 multi-protocol transceiver, a power management module and a connector;
the PCI-to-UART bridge chip is connected with the complex programmable logic device, the RS-422/RS-485/RS-232 multi-protocol transceiver and the power management module, the PCI-to-UART bridge chip realizes the conversion between the PCI bus and the UART, and the complex programmable logic device realizes the GPIO interface;
the complex programmable logic device is connected with the PCI-to-UART bridge chip, the RS-422/RS-485/RS-232 multi-protocol transceiver and the power management module to realize overall control;
the RS-422/RS-485/RS-232 multi-protocol transceiver is connected with the connector, the power management module, the complex programmable logic device and the PCI-to-UART bridge sheet; 8 RS-422/RS-485/RS-232 multi-protocol transceivers, to realize 8-path 5M RS-422/RS-485/RS-232 serial port communication;
the power management module is connected with the PCI bus interface, the PCI-to-UART bridge chip, the complex programmable logic device and the RS-422/RS-485/RS-232 multi-protocol transceiver and is used for providing various voltages required by the 5Mbps multi-protocol serial port card of the PMC specification;
and the connector is connected with the RS-422/RS-485/RS-232 multi-protocol transceiver and is an external UART interface connector of the 5Mbps multi-protocol serial port card of the PMC specification.
2. The 5Mbps multi-protocol serial port card of the PMC specification of claim 1, wherein:
the RS-422/RS-485/RS-232 multi-protocol transceiver comprises: the device comprises a 5Mbps multi-protocol serial port transceiving module and a matching resistance switching module;
the RS-422/RS-485/RS-232 multi-protocol transceiver is connected with the PCI-to-UART bridge chip, so that the receiving and the sending of a 5Mbps multi-protocol serial port are realized;
the RS-422/RS-485/RS-232 multi-protocol transceiver consists of 8 groups of 5Mbps multi-protocol serial port transceiver modules and a matching resistance switching module and is used for realizing the data transceiving of 8-channel serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123228380.9U CN216901487U (en) | 2021-12-21 | 2021-12-21 | 5Mbps multi-protocol serial port card of PMC specification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123228380.9U CN216901487U (en) | 2021-12-21 | 2021-12-21 | 5Mbps multi-protocol serial port card of PMC specification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216901487U true CN216901487U (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123228380.9U Active CN216901487U (en) | 2021-12-21 | 2021-12-21 | 5Mbps multi-protocol serial port card of PMC specification |
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| CN (1) | CN216901487U (en) |
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2021
- 2021-12-21 CN CN202123228380.9U patent/CN216901487U/en active Active
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