CN201269995Y - Communication management apparatus - Google Patents
Communication management apparatus Download PDFInfo
- Publication number
- CN201269995Y CN201269995Y CNU2008201230087U CN200820123008U CN201269995Y CN 201269995 Y CN201269995 Y CN 201269995Y CN U2008201230087 U CNU2008201230087 U CN U2008201230087U CN 200820123008 U CN200820123008 U CN 200820123008U CN 201269995 Y CN201269995 Y CN 201269995Y
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- CN
- China
- Prior art keywords
- chip
- communication
- communication management
- serial ports
- expansion
- 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 - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Power Sources (AREA)
- Information Transfer Systems (AREA)
Abstract
The utility model provides a communication management apparatus comprising a CPU and a peripheral expansion communication chip; wherein, the CPU is connected with the peripheral expansion communication chip by a PCI and an internal bus; after the signal of 16 serial ports expanded by the communication expansion chip is isolated by an optocoupler chip, the serial ports are connected with an RS232/RS485/RS422 interface circuit supported with power by a 5V DC power-supply which is isolated from the internal power-supply system of the communication management apparatus. The communication management apparatus is characterized in that the design is proper; the structure is simple; the communication interface is enriched; the performance is reliable; and the function is complete and the use is convenient, and the like.
Description
Technical field
The utility model belongs to electric power and industrial automation field, specially refers to the communication management equipment that is used for electric power and industrial automation control
Background technology
Usually, in electric system and industrial automation field, there is the smart machine of a plurality of producers, and needs to insert the supervisory system on backstage.For ease of connecting, need between smart machine and supervisory system, dispose a communication management device, be used for the collection and the forwarding of data.
Also there is following situation in prior art simultaneously:
1. the serial ports that provided of communication management device is less, mostly is 4 or 8 serial ports greatly, can not satisfy the connection of on-the-spot a large amount of smart machines.
2. the communication management device generally only provides 1 or 2 ports, can not satisfy growing data forwarding demand.
3. the serial ports that provides of communication management device does not have the design that photoelectricity is isolated substantially, makes the serial ports job insecurity, is subject to the interference of on-the-spot electromagnetic environment.
4. the serial ports physical interface that provides of communication management device can not change, because different smart machines has different physical interfaces, is unfavorable for that the scene connects smart machine flexibly.
Summary of the invention
The utility model is the deficiency that exists at prior art, provide a kind of reasonable in design, simple for structure, communication interface abundant, the communication management device of high reliability design, serial ports flexible configuration.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of communication management device is provided, it is characterized in that, described communication management device comprises central processing unit and peripheral expansion communication chip, wherein, described central processing unit is connected by PCI and internal bus with described expansion communication chip, 16 serial ports of described communication extended chip expansion are after opto-coupler chip carries out Signal Spacing, be connected with the RS232/RS485/RS422 interface circuit, described RS232/RS485/RS422 interface circuit is by the 5V DC power supply, and described 5V direct supply is that the internal electric source system from described communication management device isolates.
COM1 and COM2 are the RS-232C serial ports of traditional standard, adopt the DB-9 interface.COM3～COM6 adopts the pci bus expansion technique, interrupts being distributed automatically by system.COM7～COM10, COM11～COM14, COM15～COM18 take 3 interruptions respectively, adopt the internal bus mode to carry out serial ports expansion.4 10/100MBase-T ports adopt the pci bus expansion technique to realize, interrupt being distributed automatically by system.
Expansion serial ports COM3～COM18 that described device provides has carried out the isolation design of signal and power supply, so that isolate fully on electric between the interface circuit of serial ports and the internal circuit, can make device itself avoid the interference of external signal, improve the device reliability of operation.
The interface features of expansion serial ports COM3～COM18 that described device provides can be selected by wire jumper, is configured to wherein a kind of of RS232, RS485 or RS422, to adapt to the needs that connect different intelligent equipment
Description of drawings
Fig. 1 is the structural principle block diagram of expansion serial ports
Specific implementation method
COM3～the COM6 of device has adopted the 0x16PCI954 chip, and the FIFO of 128 bytes is contained in inside.0x16PCI954 is based on the serial ports expansion chip of pci bus, supports 4 tunnel full duplex UART passages.COM7～COM18 has adopted 3 TL16C554 to carry out serial ports expansion respectively, and each TL16C554 can expand 4 full duplex UART passages, and TL16C554 and main control chip adopt the connected mode swap data of internal bus.
4 ports use plate to carry the 82562E of Intel and the RTL8139 ethernet lan controller of Realtek.They meet IEEE802.3u10/100Base-T CSMA/CD standard fully.Carry out exchanges data with pci bus mode and main control chip, port uses the RJ-45 jack of standard.
COM3～COM18 interface has all carried out isolation design.At first the transceive data line of each serial ports (TXD, RXD) all will carry out Signal Spacing through opto-coupler chip 6N137.Per four serial ports of COM3～COM18 adopt a DC/DC switch power module, isolate independent 5V direct supply from installing inner power-supply system, be used for powering, so that the power supply of interface chip and internal electric source system isolate to serial interface chip (SN75176, Max232).Through the dual isolation of power supply and signal, make the interface section circuit of serial ports and internal circuit on electric without any getting in touch.
The interface features of COM3～COM18 serial ports can be selected by wire jumper, and each serial ports all uses Max232 to realize the RS232 interface, uses 1 SN75176 to realize the RS485 interface, uses 2 SN75176 to realize the RS422 interface.Switch the mode of these three kinds of physical interfaces by the mode of wire jumper.
Claims (1)
1, a kind of communication management device, it is characterized in that, described communication management device comprises central processing unit and peripheral expansion communication chip, wherein, described central processing unit is connected by PCI and internal bus with described expansion communication chip, 16 serial ports of described communication extended chip expansion are after opto-coupler chip carries out Signal Spacing, be connected with the RS232/RS485/RS422 interface circuit, described RS232/RS485/RS422 interface circuit is by the 5V DC power supply, and described 5V direct supply is that the internal electric source system from described communication management device isolates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201230087U CN201269995Y (en) | 2008-10-14 | 2008-10-14 | Communication management apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201230087U CN201269995Y (en) | 2008-10-14 | 2008-10-14 | Communication management apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269995Y true CN201269995Y (en) | 2009-07-08 |
Family
ID=40842602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201230087U Expired - Fee Related CN201269995Y (en) | 2008-10-14 | 2008-10-14 | Communication management apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269995Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110067B (en) * | 2009-12-29 | 2013-12-25 | 深圳市金博联电力技术有限公司 | Highly reliable RS232/RS485/RS422 mixing module for electric power FTU |
| CN104682989A (en) * | 2013-11-27 | 2015-06-03 | 中国航天科工集团第三研究院第八三五七研究所 | RS-422A signal transmitting device based on CPLD (complex programmable logic device) |
-
2008
- 2008-10-14 CN CNU2008201230087U patent/CN201269995Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110067B (en) * | 2009-12-29 | 2013-12-25 | 深圳市金博联电力技术有限公司 | Highly reliable RS232/RS485/RS422 mixing module for electric power FTU |
| CN104682989A (en) * | 2013-11-27 | 2015-06-03 | 中国航天科工集团第三研究院第八三五七研究所 | RS-422A signal transmitting device based on CPLD (complex programmable logic device) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing ESD Power Communications Co., Ltd. Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20161014 |