CN107948101A - A kind of interchanger and method of the transmission of long range Industrial Ethernet - Google Patents
A kind of interchanger and method of the transmission of long range Industrial Ethernet Download PDFInfo
- Publication number
- CN107948101A CN107948101A CN201711454927.2A CN201711454927A CN107948101A CN 107948101 A CN107948101 A CN 107948101A CN 201711454927 A CN201711454927 A CN 201711454927A CN 107948101 A CN107948101 A CN 107948101A
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- China
- Prior art keywords
- interchanger
- phy
- transmission
- long range
- industrial ethernet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/40—Constructional details, e.g. power supply, mechanical construction or backplane
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Small-Scale Networks (AREA)
Abstract
Interchanger and method, the interchanger the invention discloses a kind of transmission of long range Industrial Ethernet include power module, Cortex A9 CPU, SWITCH, PHY, logic chip, control port and service port；It is characterized in that, the PHY is BroadR Reach PHY, the MAC layer of the BroadR Reach PHY and interchanger establish data communication, and interface form therebetween is S3MII.The interchanger of the present invention is the industrial switch based on BroadR Reach actuation techniques, its advantage is：Extras repeater exchanger, fiber optical transceiver and optical cable need not be added, pass through common CAT5 cable transmissions 100Mbps Ethernets, transmission range as far as 500 meters, have reduce network transfer delay, it is cost-effective, facilitate the advantages such as field wiring and stable and high effective operation.
Description
Technical field
The invention belongs to ethernet communication field, and in particular to a kind of interchanger of long range Industrial Ethernet transmission and side
Method.
Background technology
In the application of current ethernet communication, either CAT3 cables of 10Mbps transmission rates, the transmitting pin of the cable
Rate 16MHz, is mainly used for 10base-T for voice transfer and maximum transmission rate for the data transfer of 10Mbps；Still
The CAT5e cables of 100Mbps transmission rates, the transmission frequency of the cable is 100MHz, and with decaying, small, crosstalk is few, and has
There are more high s/n ratio, the time delay of smaller, performance is greatly improved；The even Class 6 cable of 1000Mbps transmission rates, transmission
Frequency is 250MHz, suitable for the application of gigabit Ethernet.This few class cable has a common ground, its farthest effective propagation path is
100 meters.In industrial comprehensive wiring specification, horizontal wiring is also distinctly claimed no more than 90 meters, link total length is no more than
100 meters.That is, 100 meters are a limit for wired ethernet, this limit is from interchanger to hub equipment
Or the linkage length of terminal device.After general communication distance is more than 100 meters, network cable transmission will be unstable, IEEE802.3 it
So the regulation twisted-pair feeder maximum transmitted limit is 100 meters, it is the crosstalk between signal when being transmitted because of signal in twisted-pair feeder,
It can be disturbed be subject to external electromagnetic ripple, can also cause signal attenuation or distortion due to resistance and capacitance, apart from long
The signal attenuation accumulated afterwards is transmitted in which will not ensure that signal stabilization.Signal attenuation is that the loss of signal is measured, its length with cable
Degree has relation, and with the increase of length, signal attenuation is consequently increased.Db office use in decay, expression source transmission end signal to
The ratio of receiving end signal intensity, decay vary with frequency.In the wire communication application more than hundred meters, mostly by following
Two methods are realized：
1st, access switch in the circuit between switch A and switch b equipment, is relayed using interchanger, communication
About 200 meters of distance, also can realize that distance extends, same by installing the method for repeater between two sections of twisted-pair cables
4 repeaters can be installed in circuit, can so make the transmission range of network up to 500 meters；Its structure is as shown in Figure 1.
2nd, there is long haul communication using optical fiber, converts the electrical signal to optical signal using fiber optical transceiver, most
Zhongdao reuses fiber optical transceiver converted back into electric signals after reaching.According to different optical fiber and transceiver is used, transmission range can be with
Support hundreds of meters to hundred kilometers of transmission, and can guarantee that the speed of 10/100/1000M；Its structure is as shown in Figure 2.
Both the above method can realize that long-range network transmits, what shortcoming was also evident from：
1st, input and maintenance cost are high；
2nd, the reliability of system is reduced；
3rd, installation work is complicated, and manageability, does not cause construction period to extend；
4th, the difficult increase of net network design, active relaying and fiber plant need external power supply
5th, Network Transmission Delays are big.
The content of the invention
For problems of the prior art, it is an object of the invention to provide a kind of transmission of long range Industrial Ethernet
Interchanger, it efficiently solves problems of the prior art.Another object of the present invention is to provide a kind of long range
The method of Industrial Ethernet transmission.
To achieve the above object, the present invention uses following technical scheme：
A kind of interchanger of long range Industrial Ethernet transmission, the interchanger include power module, Cortex-A9CPU,
SWITCH, PHY, logic chip, control port and service port；The PHY is BroadR-Reach PHY, the BroadR-
The MAC layer of Reach PHY and interchanger establishes data communication, and interface form therebetween is S3MII；The BroadR-
Reach PHY are provided with BR PORT0-PORT7 totally 8 interfaces.
Further, the TX reference clocks of the S3MII and synchronised clock are provided by MAC chips, RX reference clocks and synchronization
Clock is provided by PHY chip.
A kind of method of long range Industrial Ethernet transmission, the method are：Transmitted needing long range Industrial Ethernet
Both ends one interchanger is set respectively, wherein one is main equipment, another is slave device, and main equipment passes through BR
7 any one mouthfuls of PORT0-PORT and the BR PORT0-PORT 7 of slave device any one mouth interconnections；Transmission cable is standard
8 core UTP twisted-pair feeders of Cat5 classes.
The present invention has following advantageous effects：
The interchanger of the present invention is the industrial switch based on BroadR-Reach actuation techniques, its advantage is：It need not add
Enter extras repeater exchanger, fiber optical transceiver and optical cable, pass through common CAT5 cable transmissions 100Mbps Ethernets, transmission
Distance as far as 500 meters, have reduce network transfer delay, it is cost-effective, facilitate the advantages such as field wiring and stable and high effective operation.
Brief description of the drawings
Fig. 1 is a kind of structure diagram for the wired communication methods for achieving over hundred meters in the prior art；
Fig. 2 is the structure diagram of another wired communication methods for achieving over hundred meters in the prior art；
Fig. 3 is the internal structure schematic diagram of the interchanger of the long range Industrial Ethernet transmission of the present invention；
Fig. 4 is the structure diagram that the BroadR-Reach PHY of the present invention and the MAC layer of interchanger establish data communication；
Fig. 5 is the connection diagram of the method for the long range Industrial Ethernet transmission of the present invention.
Embodiment
In the following, refer to the attached drawing, more fully illustrates the present invention, shown in the drawings of the exemplary implementation of the present invention
Example.However, the present invention can be presented as a variety of multi-forms, it is not construed as being confined to the exemplary implementation described here
Example.And these embodiments are to provide, so that the present invention is fully and completely, and it will fully convey the scope of the invention to this
The those of ordinary skill in field.
As shown in figure 3, the present invention provides a kind of interchanger of long range Industrial Ethernet transmission, which includes electricity
Source module, Cortex-A9CPU, SWITCH, PHY, logic chip, control port and service port；Wherein, power module passes through
To all module for power supply on plate after DC-DC conversion；CPU is responsible for system administration, peripheral hardware chip controls, exchange chip configuration and message
The work such as forwarding, available for the control of forwarding, some software list items (including software routing table, software ARP table etc.) of major maintenance,
And two layer of three layer retransmitting table of hardware of SWITCH is configured according to the forwarding information of software list item.Certainly, CPU in itself can also be complete
Into three layers of forwarding of software；SWITCH is mainly responsible for the two three layer forwarding main with BroadR-Reach PHY data communications, completion
Function, inside include be used for two layers forwarding mac address tables and for IP forwarding three layer retransmitting tables and by MDC,
The exterior PHY chip of MDIO management；BroadR-Reach PHY functions are transmitted with receiving required electricity and optical signal, line for data
Line state, clock reference, data encoding and circuit etc., and standard interface is provided to MAC layer, data communication is established with MAC layer, is connect
Degree of lip-rounding formula is S3MII, S3MII, that is, Source Sync Serial MII, source synchronous serial MII interfaces；As shown in figure 4, S3MII
TX reference clocks and synchronised clock provided by MAC chips, RX reference clocks and synchronised clock are provided by PHY chip；FPGA two
A effect：1st, parallel signal lighting is converted to for exchange chip LED_DATA/LED_CLK serially to be put to modulating signal, 2, be used for
Power on each logic chips of reset, CPU, SWITCH, DDR, Nor Flash, PHY etc.；Console ports use specialized configuration line
The serial ports of computer is connected to, being locally configured for machine is swapped using terminal emulator (hyper terminal under such as Windows),
Its interface type is RJ45；MGMT is webmaster mouth, is upgraded for local cpu program.BroadR-Reach PHY are provided with BR
Totally 8 interfaces of PORT0-PORT 7.
As shown in figure 5, present invention also offers a kind of method of long range Industrial Ethernet transmission, this method is：Needing
Want the both ends that long range Industrial Ethernet is transmitted that one interchanger is set respectively, wherein one is main equipment MASTER, separately
One is slave device SLAVE, and main equipment passes through 7 any one mouthfuls of BR PORT0-PORT and the BR PORT0-PORT of slave device
7 any one mouth interconnect；Transmission cable is 8 core UTP twisted-pair feeders of standard Cat5 classes, 10/100M too net signals can only be passed through mark
Accurate 8 core twisted pair wires realize that network-in-dialing is extended to more than 500 meters, and middle without any repeater, having reduces network transmission
Time delay, it is cost-effective, facilitate the advantages such as field wiring and stable and high effective operation.Repeater exchanger and fiber optical transceiver are substituted completely
Mode.
It is described above simply to illustrate that of the invention, it is understood that the invention is not limited in above example, meets
The various variants of inventive concept are within protection scope of the present invention.
Claims (3)
1. a kind of interchanger of long range Industrial Ethernet transmission, the interchanger include power module, Cortex-A9CPU,
SWITCH, PHY, logic chip, control port and service port；It is characterized in that, the PHY is BroadR-Reach PHY,
The MAC layer of the BroadR-Reach PHY and interchanger establish data communication, and interface form therebetween is S3MII；Institute
State BroadR-Reach PHY and be provided with totally 8 interfaces of BR PORT0-PORT 7.
2. the interchanger of long range Industrial Ethernet transmission according to claim 1, it is characterised in that the S3MII's
TX reference clocks and synchronised clock are provided by MAC chips, and RX reference clocks and synchronised clock are provided by PHY chip.
3. a kind of usage right requires the interchanger of any long range Industrial Ethernet transmission of 1-2 to carry out industry over long distances
The method of Ethernet transmission, it is characterised in that the method is：Set respectively at the both ends for needing long range Industrial Ethernet to transmit
An interchanger is put, wherein one is main equipment, another is slave device, and main equipment is appointed by BR PORT0-PORT 7
One mouth of meaning and the BR PORT0-PORT7 of slave device any one mouth interconnections；Transmission cable is 8 core UTP multiple twins of standard Cat5 classes
Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454927.2A CN107948101A (en) | 2017-12-28 | 2017-12-28 | A kind of interchanger and method of the transmission of long range Industrial Ethernet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454927.2A CN107948101A (en) | 2017-12-28 | 2017-12-28 | A kind of interchanger and method of the transmission of long range Industrial Ethernet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107948101A true CN107948101A (en) | 2018-04-20 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711454927.2A Withdrawn CN107948101A (en) | 2017-12-28 | 2017-12-28 | A kind of interchanger and method of the transmission of long range Industrial Ethernet |
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| Country | Link |
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| CN (1) | CN107948101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418904A (en) * | 2018-06-05 | 2018-08-17 | 天地科技股份有限公司上海分公司 | Ethernet communication control device and fully-mechanized mining working communication network |
| CN115017085A (en) * | 2022-08-05 | 2022-09-06 | 江西联创精密机电有限公司 | Data transmission system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2932839Y (en) * | 2006-02-28 | 2007-08-08 | 北京索安视讯科技有限公司 | Ethernet long-distance transceiver based on twisted-pair transmission |
| CN203120093U (en) * | 2013-01-22 | 2013-08-07 | 江苏新创光电通信有限公司 | Industrial type monitoring optical switch |
| CN106533996A (en) * | 2017-01-11 | 2017-03-22 | 深圳市立全鼎盛科技有限公司 | Network cable switch of extra long distance transmission |
| CN207801989U (en) * | 2017-12-28 | 2018-08-31 | 天津卓越信通科技有限公司 | A kind of interchanger of long range Industrial Ethernet transmission |
-
2017
- 2017-12-28 CN CN201711454927.2A patent/CN107948101A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2932839Y (en) * | 2006-02-28 | 2007-08-08 | 北京索安视讯科技有限公司 | Ethernet long-distance transceiver based on twisted-pair transmission |
| CN203120093U (en) * | 2013-01-22 | 2013-08-07 | 江苏新创光电通信有限公司 | Industrial type monitoring optical switch |
| CN106533996A (en) * | 2017-01-11 | 2017-03-22 | 深圳市立全鼎盛科技有限公司 | Network cable switch of extra long distance transmission |
| CN207801989U (en) * | 2017-12-28 | 2018-08-31 | 天津卓越信通科技有限公司 | A kind of interchanger of long range Industrial Ethernet transmission |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418904A (en) * | 2018-06-05 | 2018-08-17 | 天地科技股份有限公司上海分公司 | Ethernet communication control device and fully-mechanized mining working communication network |
| CN108418904B (en) * | 2018-06-05 | 2024-04-09 | 天地科技股份有限公司上海分公司 | Ethernet communication control device and fully-mechanized mining face communication network |
| CN115017085A (en) * | 2022-08-05 | 2022-09-06 | 江西联创精密机电有限公司 | Data transmission system and method |
| CN115017085B (en) * | 2022-08-05 | 2022-11-08 | 江西联创精密机电有限公司 | Data transmission system and method |
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Application publication date: 20180420 |