CN1761215A - Insulation blocking equipment for Ethenret - Google Patents
Insulation blocking equipment for Ethenret Download PDFInfo
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- CN1761215A CN1761215A CNA2005101146868A CN200510114686A CN1761215A CN 1761215 A CN1761215 A CN 1761215A CN A2005101146868 A CNA2005101146868 A CN A2005101146868A CN 200510114686 A CN200510114686 A CN 200510114686A CN 1761215 A CN1761215 A CN 1761215A
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- ethernet
- coupling transformer
- conversion module
- signal
- module
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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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
The equipment includes following parts: first Ethernet interface; through conversion of electromagnetic field, first coupling transformer in use for coupling Ethernet signal at Ethernet interface end to the following photovoltaic conversion module; first photovoltaic conversion module converts differential signal from the coupling transformer to optical signal; second photovoltaic conversion module in use for converting optical signal from first photovoltaic conversion module to differential signal, which is sent to second coupling transformer; second coupling transformer sends differential signal from second photovoltaic conversion module to second Ethernet interface through coupling mode. Using mode of optical isolation or magnetic isolation, the invention isolates electrical connection between network devices thoroughly so as to prevent network devices in larger area from shot up caused by thunder.
Description
Technical field
The present invention relates to the protective device of network service, particularly protect the protective device of ethernet feature equipment and ethernet end device by isolation method.
Background technology
Be accompanied by progress of science and technology, the information age arrives, and information technology has been penetrated into human society production and various fields in life.Network is the carrier of information, and ethernet feature equipment plays " hinge " effect in network data transmits.The leads that adopt connect more between the present network equipment and the network equipment, at many thunderstorm seasons, in case an equipment is struck by lightning, huge electric current can be transferred to all devices that is attached thereto along lead, smash these equipment, cause network service to interrupt, ethernet feature equipment and ethernet end device paralysis, because the equipment that smashes can't keep in repair, and bring enormous economic loss in addition.At present, the mode that the Ethernet lightning protection adopts holding wire to discharge over the ground mostly, this mode can not solve the harm because of high potential difference caused between two equipment.Therefore, be badly in need of the protection that a kind of new mode that can thoroughly completely cut off the electrical communication between equipment and the equipment of invention realizes the network equipment.
Summary of the invention
In view of the above problems, the inventor has invented a kind of isolation protection device of ethernet, and this device can thoroughly completely cut off the electrical communication between the network equipment and the network equipment, can prevent effectively that the thunder and lightning large tracts of land from wounding the network equipment.
Isolation protection device of ethernet of the present invention comprises: first Ethernet interface, it is characterized in that, also comprise: first coupling transformer, this first coupling transformer are used for the conversion by electromagnetic field of the ethernet signal of described Ethernet interface end is coupled to photoelectric conversion module described later; First photoelectric conversion module, this photoelectric conversion module will be converted to light signal from the differential signal of coupling transformer; Second photoelectric conversion module, this photoelectric conversion module are used for the light signal from first photoelectric conversion module is converted to differential signal and is sent to second coupling transformer; Second coupling transformer, this second coupling transformer will be sent to second Ethernet interface by the mode that is coupled from the differential signal of second photoelectric conversion module.
Isolation protection device of ethernet of the present invention comprises: first Ethernet interface, it is characterized in that, also comprise: first coupling transformer, this first coupling transformer are used for the conversion by electromagnetic field of the ethernet signal of described Ethernet interface end is coupled to electromagnetic isolation module described later; The electromagnetic isolation module, this electromagnetic isolation module converts differential signal to field signal and simultaneously field signal is converted to differential signal and be sent to second coupling transformer; Second coupling transformer, this second coupling transformer will be sent to second Ethernet interface by the mode that is coupled from the differential signal of electromagnetic isolation module.
Because isolation protection device of ethernet of the present invention is isolated or the thoroughly isolated network equipment of mode of magnetic field isolation and the electrical communication between the network equipment by adopting light, wounds the network equipment so can effectively prevent the thunder and lightning large tracts of land.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is the block diagram of isolation protection device of ethernet of the present invention.
Fig. 3 is the block diagram of another execution mode of isolation protection device of ethernet of the present invention.
Fig. 4 is power circuit principle figure of the present invention.
Embodiment
Followingly be elaborated with reference to the embodiment of accompanying drawing to isolation protection device of ethernet of the present invention.
Fig. 1 is the schematic diagram of isolation protection device of ethernet of the present invention.Two ends are the RJ45 interface, connect Ethernet, and inner light isolation technology or the magnetic field isolation technology of adopting isolated the two ends signal of telecommunication fully, realizes the insulation blocking effect.The RJ45 interface meets the IEEE802.3AF standard, realizes obtaining power supply from Ethernet.It comprises 8 pins, and wherein 4 pins are used to transmit data, and 4 pins are used to accept the power supply that Ethernet provides in addition.The pin 1/2,3/6 of Ethernet interface is used to transmit data in the present invention, and 4/5,7/8 is used to accept the working power that Ethernet provides.
[embodiment 1]
Fig. 2 is the block diagram of a kind of execution mode of isolation protection device of ethernet of the present invention.Isolation protection device of ethernet A of the present invention comprises: first Ethernet interface 11, it is characterized in that, also comprise: first coupling transformer (FC-518LS) 12, this first coupling transformer is used for the conversion by electromagnetic field of the ethernet signal of first Ethernet interface, 11 ends is coupled to first photoelectric conversion module 13; First photoelectric conversion module 13, this photoelectric conversion module utilize optocoupler or optical transceiver to be converted to light signal and to export to second photoelectric conversion module from the differential signal of coupling transformer; Second photoelectric conversion module 15 will convert differential signal to and be sent to second coupling transformer 16 from the light signal of first photoelectric conversion module; This second coupling transformer 16 will be sent to second Ethernet interface 17 by the mode that is coupled from the differential signal of second photoelectric conversion module 15.
[embodiment 2]
Fig. 3 is the block diagram of another embodiment of isolation protection device of ethernet of the present invention.Identical with the foregoing description 1 in the figure part has been paid identical symbol.
Isolation protection device of ethernet B of the present invention comprises: first Ethernet interface 11, it is characterized in that, also comprise: first coupling transformer 12, this first coupling transformer 12 is used for the conversion by electromagnetic field of the ethernet signal of described Ethernet interface end is coupled to electromagnetic isolation module 13 ' described later (NVE-IL716); Electromagnetic isolation module 13 ' converts differential signal to field signal and simultaneously field signal is converted to differential signal and be sent to second coupling transformer 16; Second coupling transformer 16 will be sent to second Ethernet interface 17 by the mode that is coupled from the differential signal of electromagnetic isolation module.
Fig. 4 is a power circuit block diagram of the present invention.Comprise Ethernet interface 11,17, bridge rectifier 24, power management chip 22, power isolation module 23 and local power supply interface 21.Described Ethernet interface meets the IEEE802.3AF standard, and pin 1/2,3/6 is used to transmit data, and 4/5,7/8 is used for providing power supply to terminal equipment.Insert power supply through bridge rectifier 24 rectifications from Ethernet interface 11,17 pins 4/5,7/8, deliver to power management chip 22.Power management chip 22 is finished power classification and subsequent conditioning circuit is powered.Power isolation module 23 is with power management chip 22 out-put supplies and photoelectric conversion module isolated from power.The positive pole of local power supply interface 11,17 connects the anode of diode D1, the output cathode of power management module (MAX5940B) 22 is connected with the anode of diode D2, and the negative electrode of diode D1 is connected with the negative electrode of diode D2, the V+ of power isolation module (MAX5014).Purpose is local power supply and Power over Ethernet and when depositing, by the higher power supply power supply of voltage.
Before the IEEE802.3AF standard is not also popularized, be not subjected to the limitation of IEEE802.3AF standard, can be applied to meet the Ethernet of IEEE802.3 standard.After the IEEE802.3AF standard was popularized, this device need not be changed any parts, still can continue to use.
Because isolation protection device of ethernet of the present invention is isolated or the thoroughly isolated network equipment of mode of magnetic field isolation and the electrical communication between the network equipment by adopting light, wounds the network equipment so can effectively prevent the thunder and lightning large tracts of land.
More than explanation only is two kinds of execution modes of the present invention, the invention is not restricted to above-mentioned two kinds of execution modes, and the change that any those of ordinary skills can realize without creative work is included within protection scope of the present invention.
Claims (4)
1, a kind of isolation protection device of ethernet comprises: first Ethernet interface, it is characterized in that, also comprise: first coupling transformer, this first coupling transformer are used for the conversion by electromagnetic field of the ethernet signal of described Ethernet interface end is coupled to photoelectric conversion module described later; First photoelectric conversion module, this photoelectric conversion module will be converted to light signal from the differential signal of coupling transformer; Second photoelectric conversion module, this photoelectric conversion module are used for the light signal from first photoelectric conversion module is converted to differential signal and is sent to second coupling transformer; Second coupling transformer, this second coupling transformer will be sent to second Ethernet interface by the mode that is coupled from the differential signal of second photoelectric conversion module.
2, a kind of isolation protection device of ethernet comprises: first Ethernet interface, it is characterized in that, also comprise: first coupling transformer, this first coupling transformer are used for the conversion by electromagnetic field of the ethernet signal of described Ethernet interface end is coupled to electromagnetic isolation module described later; The electromagnetic isolation module, this electromagnetic isolation module converts differential signal to field signal and simultaneously field signal is converted to differential signal and be sent to second coupling transformer; Second coupling transformer, this second coupling transformer will be sent to second Ethernet interface by the mode that is coupled from the differential signal of electromagnetic isolation module.
3, as claim 1 or the described isolation protection device of ethernet of claim 2; it is characterized in that; its power module becomes powered device PD according to the IEEE802.3AF standard design; this equipment also disposes the local power supply interface; so that make it meet the IEEE802.3AF standard; can select the Ethernet interface power supply, also meet the IEEE802.3 standard, select the local power supply supply power mode.
4, isolation protection device of ethernet as claimed in claim 3; it is characterized in that; the positive pole of described local power supply interface connects the anode of diode D1; described power management module output cathode connects the anode of diode D2; the negative electrode of diode D1 meets negative electrode, the power isolation module V+ of diode D2; so that in local power supply and Power over Ethernet and when depositing, by the higher power supply power supply of voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101146868A CN1761215A (en) | 2005-10-28 | 2005-10-28 | Insulation blocking equipment for Ethenret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101146868A CN1761215A (en) | 2005-10-28 | 2005-10-28 | Insulation blocking equipment for Ethenret |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1761215A true CN1761215A (en) | 2006-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101146868A Pending CN1761215A (en) | 2005-10-28 | 2005-10-28 | Insulation blocking equipment for Ethenret |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1761215A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971334B (en) * | 2008-02-25 | 2012-12-26 | Tivo有限公司 | Stackable communications system |
| CN101719665B (en) * | 2009-12-24 | 2013-02-20 | 迈普通信技术股份有限公司 | Ethernet port lightning protection device and lightning protection circuit |
| CN109343412A (en) * | 2018-11-05 | 2019-02-15 | 郑州煤机液压电控有限公司 | Hydraulic support electronic control system signal coupler |
-
2005
- 2005-10-28 CN CNA2005101146868A patent/CN1761215A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971334B (en) * | 2008-02-25 | 2012-12-26 | Tivo有限公司 | Stackable communications system |
| CN101719665B (en) * | 2009-12-24 | 2013-02-20 | 迈普通信技术股份有限公司 | Ethernet port lightning protection device and lightning protection circuit |
| CN109343412A (en) * | 2018-11-05 | 2019-02-15 | 郑州煤机液压电控有限公司 | Hydraulic support electronic control system signal coupler |
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