CN206402225U - 10/100M adaptive ethernet coaxial cable transceivers - Google Patents
10/100M adaptive ethernet coaxial cable transceivers Download PDFInfo
- Publication number
- CN206402225U CN206402225U CN201720526074.8U CN201720526074U CN206402225U CN 206402225 U CN206402225 U CN 206402225U CN 201720526074 U CN201720526074 U CN 201720526074U CN 206402225 U CN206402225 U CN 206402225U
- Authority
- CN
- China
- Prior art keywords
- coaxial cable
- ethernet
- interface
- switching chip
- protocol converter
- 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.)
- Active
Links
Landscapes
- Small-Scale Networks (AREA)
Abstract
A kind of 10/100M adaptive ethernets coaxial cable transceiver, it includes several RJ45 Ethernet interfaces, the Ethernet transformer consistent with Ethernet interface quantity, one Ethernet switching chip, one protocol converter, one coaxial cable adapter and a coaxial cable bnc interface, described RJ45 Ethernet interface external connection twisted-pair feeders, the corresponding Ethernet transformer of inside connection, the Ethernet transformer connects the corresponding input/output signal end of Ethernet switching chip, Ethernet switching chip U1 connection protocol converters, protocol converter connecting coaxial cable adapter, coaxial cable adapter is connected to coaxial cable bnc interface, the coaxial cable bnc interface is connected to external cable.Transceiver of the present utility model can transmit Fast Ethernet signal using coaxial cable, and the features such as speed energy 10/100M of coaxial transmission interface is adaptive, cost performance is high can effectively save wire rod cost and construction cost.
Description
Technical field
The utility model is related to a kind of coaxial cable transmission equipment, is a kind of fast by 1 ~ 4 road 100M of coaxial cable transmission
The transceiver of fast ethernet signal, transmission range can reach 600 meters, specifically a kind of ethernet coaxial cable transceiver.
Background technology
In the communications field, most start the handling capacity that Ethernet only has 10Mbps, be CSMA/CD used in it（With punching
The Carrier Sense Multiple Access of prominent detection）Access control method, generally the 10Mbps Ethernets of this earliest period are referred to as
Standard ethernet.Ethernet mainly has two kinds of transmission mediums, that is, twisted-pair feeder and coaxial cable.All Ethernets are all followed
The standards of IEEE 802.3：
10Base-5 uses thick coaxial cable, and maximum segment length is 500m, base band transmission method；
10Base-2 uses thin coaxial cable, and maximum segment length is 185m, base band transmission method；
10Base-T uses twisted-pair cable, and maximum segment length is 100m；
1Base-5 uses twisted-pair cable, and maximum segment length is 500m, and transmission speed is 1Mbps；
With the development of network, the ethernet technology of traditional standard has been difficult to meet growing network traffic data speed
Degree demand.March nineteen ninety-five, IEEE announced IEEE802.3u 100BASE-T Fast Ethernet standards（Fast Ethernet）,
The epoch of Fast Ethernet are started like this.
100Mbps Fast Ethernet standards are divided into again：100BASE-TX, 100BASE-FX, 100BASE-T4 tri-
Subclass.Fast Ethernet technical support 3,4, the connection of category 5 twisted pair and optical fiber, can effectively utilize existing facility, but
Coaxial cable is not supported to transmit.
The unshielded twisted pair UTP used now can be divided into 3 classes, 4 classes, five classes and surpass four kinds of five class.Wherein：3 class UTP
Requirement of the Ethernet (10Mbps) to transmission medium has been adapted to, has been important transmission medium in earlier network；4 class UTP are because of standard
Release it is more late than 3 classes, and transmission performance is not improved how many compared with 3 class UTP, less is used so general；Five class UTP because
Preferred medium that is of high quality and at a reasonable price and turning into Fast Ethernet (100Mbps)；The ample scope for abilities for surpassing five class UTP is GBIC
(1000Mbps)。
Coaxial cable (Coaxial Cable) refers to there are two concentric conductors, and conductor and screen layer share same axle
The cable of the heart.The copper conductors that most common coaxial cable is isolated by insulating materials are constituted, and are in the outside of nexine insulating materials
Another layer of ring shaped conductor and its insulator, then whole cable is encased by the sheath of polyvinyl chloride or teflon material, if made
High-frequency signal is transmitted with general electric wire, this electric wire will outwards launch the antenna of radio equivalent to one.Coaxial cable
Design precisely in order to solving this problem.The radio that center wire is emitted is isolated by reticulated conductive layer, netted to lead
Electric layer can control the radio emitted by way of ground connection.This structure of coaxial cable, makes it have high band
Wide and fabulous noise suppression feature.The bandwidth of coaxial cable depends on cable length.1km cable can reach 1Gb/s ~
2Gb/s message transmission rate.
Coaxial cable English abbreviation SYV, what is often had has a 75-7,75-5,75-3, the model such as 75-1, and characteristic impedance is all 75
Ohm, to adapt to different transmission ranges.It is with the main medium of asymmetric base band mode transmission video signal.
At present, coaxial cable has the problem of largely being replaced by optical fiber, but be still widely used for wired and radiovision and
Some LANs.Because current coaxial cable is still largely existed using scene, especially Video Surveillance Industry, original simulation
Video monitoring has used substantial amounts of coaxial cable, when needing to escalate into IP video monitorings at present, if coaxial cable generation can be used
For twisted pair line connection, substantial amounts of wire rod and the construction cost of rewiring can be saved.But because Fast Ethernet is not supported together
Shaft cable is transmitted, it is impossible to is effectively carried out high bandwidth transmission using existing coaxial cable, is easily caused the substantial amounts of wasting of resources, greatly
The big cost for improving upgrading.
10/100M adaptive ethernet coaxial cables transceiver is the quick ether of comprehensively solve exactly under this background
Netcom crosses coaxial cable transmission demand and developed.
The content of the invention
The purpose of this utility model is to need to carry out 600 meters of distances by coaxial cable for 100M Fast Ethernet signals
Within the demand transmitted and a kind of ethernet coaxial cable transceiver proposed.
The technical solution of the utility model is：
A kind of 10/100M adaptive ethernets coaxial cable transceiver, it include several RJ45 Ethernet interfaces, with
Too the consistent Ethernet transformer of network interface quantity, Ethernet switching chip U1, protocol converter U2, one it is coaxial
Cable adaptor and a coaxial cable bnc interface, described RJ45 Ethernet interface external connection twisted-pair feeders, inside connection pair
The Ethernet transformer answered, Ethernet transformer connection Ethernet switching chip U1 corresponding input/output signal end, ether
Net exchange chip U1 connection protocol converter U2, protocol converter U2 connecting coaxial cable adapters, coaxial cable adapter connects
Coaxial cable bnc interface is connected to, the coaxial cable bnc interface is connected to external cable, the transceiver can be by 100 m ethernet
The transmission medium of signal switchs to the transmission of SYV-75-5/SYV-75-3 coaxial cables by CAT5/CAT6 twisted-pair feeders, by Fast Ethernet
Maximum transmission distance extends to 600 meters from 100 meters, and bandwidth 10M/100M is adaptive.
RJ45 Ethernet interfaces of the present utility model are 1 ~ 4.
The utility model also includes synchronised clock module, described synchronised clock module connection Ethernet switching chip U1 and
Protocol converter U2 clock signal input terminal.
The utility model also includes power module U3, and described power module U3 power supply output end connects Ethernet respectively
Exchange chip U1 and protocol converter U2 power input.
The utility model also includes signal and connects indicator lamp and data transfer indicator lamp, described signal connection indicator lamp and
Data transfer indicator lamp is connected with Ethernet switching chip U1 corresponding signal output part.
The beneficial effects of the utility model：
Ethernet coaxial cable transceiver of the present utility model can be by 100,000,000 Fast Ethernets of 1 ~ 4 road multiple twin line interface
Be converted to and transmitted using coaxial cable, transmission range is up to 300 meters when bandwidth can reach 100M, bandwidth is in 10M, transmission
Distance can reach 600 meters, so can transmit Ethernet using the coaxial wire of a large amount of original analog video monitoring
Vision signal, saves the quantities of substantial amounts of wire rod and rewiring, can be in safety monitoring engineering, traffic monitoring, safety
Urban construction, intelligent building, video conference, communication, finance, physical culture, electric power, water conservancy, customs, frontier defense, military affairs, space flight, industry
It is used widely in the fields such as production, business, museum, exhibition center, historical relic's protection, tourism.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
A kind of 10/100M adaptive ethernets coaxial cable transceiver, it include several RJ45 Ethernet interfaces, with
Too the consistent Ethernet transformer of network interface quantity, Ethernet switching chip U1, protocol converter U2, one it is coaxial
Cable adaptor and a coaxial cable bnc interface, described RJ45 Ethernet interface external connection twisted-pair feeders, inside connection pair
The Ethernet transformer answered, Ethernet transformer connection Ethernet switching chip U1 corresponding input/output signal end, ether
Net exchange chip U1 connection protocol converter U2, protocol converter U2 connecting coaxial cable adapters, coaxial cable adapter connects
Coaxial cable bnc interface is connected to, the coaxial cable bnc interface is connected to external cable.
During specific implementation：
As shown in Figure 1, RJ45 interfaces are exemplified by four, and ethernet coaxial cable transceiver includes 1 ~ 4 identical
RJ45 interfaces, by 1 ~ 4 RJ45 interface, transceiver can connect extraneous 4 road 100 m ethernet by 1 ~ 4 RJ45 interface,
Ethernet signal TX1/RX1, TX2/RX2, TX3/RX3, TX4/RX4 are respectively connected to 4 network transformer T1 ~ T4 primary
Side, by network transformer, signal is converted into TD1/RD1, TD2/RD2, TD3/RD3, TD4/RD4, and this 4 groups of signals are connected
To Ethernet switching chip U1 corresponding input/output pin, Ethernet switching chip U1 can have to be inputted more than as 5 groups
Output pin, the 5th group of pin TD5/RD5 is connected to protocol converter U2 corresponding pin TD/RD, and protocol converter U2 is by TD/
RD signals are converted to the signal of L-reach agreements, and this signal is connected to coaxial cable adapter, and coaxial cable adapter will
This signal, which is converted to, meets coax impedance characteristic, is then attached to BNC coaxial interfaces, thus can be coaxial with the external world
Cable connection.
Foundation latest model BroadR-Reach agreements, the length of protocol conversion chip meeting Auto-Sensing coaxial cable, coaxially
When cable length is less than 300 meters, the speed of coaxial interface can be set to 100,000,000 bandwidth, coaxial cable by protocol conversion chip
When cable length is more than 300 meters less than 600 meters, the speed of coaxial interface can be set to 10,000,000 bands by protocol conversion chip automatically
Width, transmission is automatically stopped during more than 600 meters.
Due to all multiple twin line interfaces and coaxial cable interface finally all can tandem to Ethernet switching chip U1, handing over
Change chip internal and do signal exchange, so all interface signals can be intercoursed.The Ethernet of such 4 road RJ45 interfaces
Signal can be transmitted by coaxial cable.BroadR-Reach equally can also be met by what is transmitted by coaxial cable
The signal of agreement is converted to the ethernet signal for meeting 100Base-TX signals.Thus reach and passed over long distances using coaxial cable
The function of defeated 10/100M ethernet signals.
Ethernet switching chip U1 can be according to each port working condition, when RJ45 port links are not connected normally
When, the corresponding indicator lamp in port goes out, and when signal link is normal, the corresponding indicator lamp in port is bright, is passed when there is Ethernet data bag
When defeated, port led flicker.When coaxial interface link does not connect normal, the corresponding indicator lamp in port goes out；Work as signal chains
When connecing normal, and when adapting into 100M speed, the corresponding indicator lamp green light in port when signal link is normal, and is fitted
When should be into 10M speed, the corresponding indicator lamp amber light in port be bright, and when there is the transmission of Ethernet data bag port, port led is dodged
It is bright.
Ethernet switching chip of the present utility model can be using the general Fast Ethernet exchange chip in market, as long as tool
There is the 88E6060 of 100,000,000 input/output ports, such as MARVELL companies of more than 2；Protocol conversion chip can be used
The BCM54810 of BROADCOM companies, Ethernet RJ45 interface can select the general RJ45 connectors in market；Ethernet transformer
From the Fast Ethernet transformer that market is general, coaxial cable adapter selects general 75 ohm 1 in market：1 transformation is coupled
Device, coaxial cable interface selects general bnc interface, and signal lamp and power supply indicator select general LED light-emitting diodes
Pipe L-314 etc..
The utility model is not directed to partly same as the prior art or can realized using prior art.
Claims (5)
1. a kind of 10/100M adaptive ethernets coaxial cable transceiver, it is characterized in that it connects including several RJ45 Ethernets
Mouth, the Ethernet transformer consistent with Ethernet interface quantity, Ethernet switching chip U1, protocol converter U2,
One coaxial cable adapter and a coaxial cable bnc interface, described RJ45 Ethernet interface external connection twisted-pair feeders are interior
Portion connects corresponding Ethernet transformer, Ethernet transformer connection Ethernet switching chip U1 corresponding input/output signal
End, Ethernet switching chip U1 connection protocol converter U2, protocol converter U2 connecting coaxial cable adapters, coaxial cable is fitted
Orchestration is connected to coaxial cable bnc interface, and the coaxial cable bnc interface is connected to external cable.
2. 10/100M adaptive ethernets coaxial cable transceiver according to claim 1, it is characterized in that described RJ45
Ethernet interface is 1 ~ 4.
3. 10/100M adaptive ethernets coaxial cable transceiver according to claim 1, it is characterized in that it is also included together
Clock module is walked, described synchronised clock module connects Ethernet switching chip U1 and protocol converter U2 clock signal input
End.
4. 10/100M adaptive ethernets coaxial cable transceiver according to claim 1, it is characterized in that it also includes electricity
Source module U3, described power module U3 power supply output end connect Ethernet switching chip U1's and protocol converter U2 respectively
Power input.
5. 10/100M adaptive ethernets coaxial cable transceiver according to claim 1, it is characterized in that it also includes letter
Number connection indicator lamp and data transfer indicator lamp, described signal connection indicator lamp and data transfer indicator lamp are handed over Ethernet
The corresponding signal output part for changing chip U1 is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720526074.8U CN206402225U (en) | 2017-05-12 | 2017-05-12 | 10/100M adaptive ethernet coaxial cable transceivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720526074.8U CN206402225U (en) | 2017-05-12 | 2017-05-12 | 10/100M adaptive ethernet coaxial cable transceivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206402225U true CN206402225U (en) | 2017-08-11 |
Family
ID=59515393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720526074.8U Active CN206402225U (en) | 2017-05-12 | 2017-05-12 | 10/100M adaptive ethernet coaxial cable transceivers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206402225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108965435A (en) * | 2018-07-19 | 2018-12-07 | 苏州裕太车通电子科技有限公司 | It is a kind of apart from enhanced Ethernet transmission method |
-
2017
- 2017-05-12 CN CN201720526074.8U patent/CN206402225U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108965435A (en) * | 2018-07-19 | 2018-12-07 | 苏州裕太车通电子科技有限公司 | It is a kind of apart from enhanced Ethernet transmission method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208424796U (en) | A kind of LORA gateway of internet of things | |
| CN101719791A (en) | Optic fiber transceiver having remote monitoring function and data transmission method | |
| US20110206063A1 (en) | Method And System For Ethernet Converter And/Or Adapter That Enables Conversion Between A Plurality Of Different Ethernet Interfaces | |
| CN206402225U (en) | 10/100M adaptive ethernet coaxial cable transceivers | |
| CN105515927A (en) | Remote serial port communication system and method based on Ethernet Cat.5 wiring framework | |
| CN212064011U (en) | Electrical port module | |
| CN102075558A (en) | Physical layer devices and method thereof | |
| CN203618007U (en) | Multichannel Ethernet cable extender main terminal with optical port | |
| CN206413068U (en) | A kind of gigabit Homeplug | |
| CN206932325U (en) | A kind of video signal transmission conversion equipment | |
| CN107948101A (en) | A kind of interchanger and method of the transmission of long range Industrial Ethernet | |
| CN215299654U (en) | PoE extender capable of bunching and finishing | |
| CN108648859A (en) | A kind of Ethernet transmission wire rod and Ethernet Transmission system | |
| CN103686079B (en) | A kind of terminal device | |
| CN201853534U (en) | Hybrid optical cable with cross bracing | |
| CN105187221B (en) | Connect the adapter and network communicating system of interchanger and access point AP | |
| CN114006785A (en) | Single-twisted-pair TSN passive coupler and design method | |
| CN203313216U (en) | Multi-medium internet gateway device | |
| CN208691401U (en) | A kind of web camera for supporting remote wired network communication | |
| CN201548722U (en) | Multifunctional double-light-port photoelectric converter | |
| CN202353592U (en) | Power broadband data exchanger and electricity meter networking system using same | |
| CN204479815U (en) | A kind of two-way Ethernet active optical cable based on RJ-45 interface | |
| CN201707436U (en) | Radar networking detection system | |
| CN215007697U (en) | Photoelectric hybrid network architecture | |
| CN218897266U (en) | WIFI6PON board card |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |