CN201590661U - Electrooptical-optoelectrical surge protector - Google Patents
Electrooptical-optoelectrical surge protector Download PDFInfo
- Publication number
- CN201590661U CN201590661U CN201020102755XU CN201020102755U CN201590661U CN 201590661 U CN201590661 U CN 201590661U CN 201020102755X U CN201020102755X U CN 201020102755XU CN 201020102755 U CN201020102755 U CN 201020102755U CN 201590661 U CN201590661 U CN 201590661U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- signal
- fiber optic
- level translator
- input
- 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 - Lifetime
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses an electrooptical-optoelectrical surge protector comprising an input end, an output end, as well as a level translator, an optical fiber driver, an optical fiber emitter and an optical fiber receiver that are connected between the input end and the output end. A signal is shaped by the level translator, then transmitted into the optical fiber driver and becomes an optical signal; the optical signal is emitted out by the optical fiber emitter and subjected to optical fiber transmission, and then changed into an electrical signal by the optical fiber receiver; and the electrical signal is shaped by the level translator and becomes a standard signal to be output. In the process of electrooptical-optoelectrical conversion, due to the adoption of optical fiber transmission, zero residual voltage exists on signal wires (without needing ground wires), thus greatly protecting interface equipment and preventing the ground wire loop voltage, surge, induction lightning stroke, static electricity and the like from damaging the equipment.
Description
Technical field
The utility model relates to a kind of thunder and lightning surge protector, relates in particular to a kind of class signal thunder and lightning surge protector.
Background technology
The traditional electrical surge protector is that surge voltage is carried out clamp; adopt the parasitic parameter of surge protection device necessary reasonably combined for through-current capability, protection level, signal insertion loss etc.; and components and parts manufacturer is difficult to guarantee the unanimity of all component parameters; and the installation of ground wire is made troubles to construction; what is more important, meetings such as the loop voltage on the ground wire, surge, indirect lightning strike, static cause damage to equipment.
The utility model content
The purpose of this utility model is to provide a kind of electric light-photoelectricity surge protector, utilizes the spread fiber signal.
The technical scheme that the utility model adopted is:
A kind of electric light-photoelectricity surge protector; comprise the input of at least three ports and the output of at least three ports; also comprise a level translator that is connected between input and the output; the optical fiber driver; one first fiber optic emitter; one second fiber optic emitter; one first fiber optic receiver; one second fiber optic receiver; wherein; input; output wherein two input terminals that are connected with level translator of a port connect; wherein two lead-out terminals of level translator are connected with the optical fiber driver; the optical fiber driver and first fiber optic emitter; second fiber optic emitter connects; first fiber optic receiver; second fiber optic receiver is connected with two input terminals in addition of level translator; output is connected the 3rd port ground connection of input and output with the another port of input with two lead-out terminals in addition of level translator.
Described level translator is MAX232, and described optical fiber driver is SN55451B, and fiber optic emitter is selected HFBR-1522 for use, and fiber optic receiver adopts HFBR-2522.
Implement the utility model; have following beneficial effect: signal is converted into light signal at the end of registering one's residence by the signal of telecommunication in transmission course; be converted to the signal of telecommunication by light signal again and insert use equipment; in electric light-photoelectric conversion process; owing to adopt spread fiber; zero residual voltage (need not ground wire) has been protected interface equipment greatly on the signal line, has avoided the damage to equipment such as earth loop voltage, surge, indirect lightning strike, static.
Description of drawings
Fig. 1 is the utility model electric light-photoelectricity surge protector circuit theory diagrams;
Fig. 2 is the utility model electric light-photoelectricity surge protector operation principle block diagram.
Embodiment
Hereinafter with reference to the electric light-photoelectricity surge protector of accompanying drawing detailed description according to the utility model embodiment.
As shown in Figure 1; the utility model electric light-photoelectricity surge protector comprises input J1 and output J2; one level translator; one optical fiber driver; 2 fiber optic emitter TP1; TP2; 2 fiber optic receiver RP1; RP2; wherein; input J1 and output J2 comprise 3 ports separately at least; and one of them port ground connection; in the present embodiment; the J1-5 port ground connection of input J1; the J2-5 port ground connection of output J2; level translator adopts MAX232; the model of optical fiber driver is selected SN55451B for use, and fiber optic emitter is selected HFBR-1522 for use, and fiber optic receiver adopts HFBR-2522.Level translator, optical fiber driver, fiber optic emitter, fiber optic receiver are connected between the J2-2, J2-3 port of J1-2, J1-3 port and the output J2 of input J1, and concrete connected mode is as follows:
The J1-2 of input J1, J1-3 port are connected respectively to lead-out terminal 14, the input terminal 13 of level translator, the lead-out terminal 12,9 of level translator links to each other with the terminal 2,6 of optical fiber driver respectively, and the terminal 3,5 of optical fiber driver is connected with the terminal 2 of the first fiber optic emitter TP1, the second fiber optic emitter TP2 respectively.
Be connected to the input terminal 11 that is connected to level translator behind terminal 1,4 connectors of input terminal 10, the second fiber optic receiver RP2 of level translator behind terminal 1,4 connectors of the first fiber optic receiver RP1.
The J2-2 of output J2, J2-3 port are connected with lead-out terminal 7, the input terminal 8 of level translator.
When signal transmits, with the RS232 signal is example, after the RS232 signal is sent to level translator from the J1-3 port of input J1, level translator is to its shaping, be about to it and convert Transistor-Transistor Logic level signal or CMOS level signal to, conversion signal later becomes light signal after being transmitted into the optical fiber driver via the terminal 12 of level translator, light signal is launched away by the first fiber optic emitter TP1 again, pass through Optical Fiber Transmission, the first fiber optic receiver RP1 receiving optical signals also becomes it into the signal of telecommunication, this signal of telecommunication is sent to level translator via the terminal 10 of level translator and carries out shaping then, be about to its RS232 signal that becomes standard after by terminal 7 outputs, send into the J2-2 port of output J2, because output J2 generally connects use equipment, thereby signal is sent to use equipment.
In the present embodiment, be to be input with J1, accordingly, J2 is output, and when J2 was seen as input, accordingly, J1 was output, and its signal conversion process is identical.After the RS232 signal is sent to level translator from the J2-3 port of J2, level translator is to its shaping, be about to it and convert Transistor-Transistor Logic level signal or CMOS level signal to, conversion signal later becomes light signal after being transmitted into the optical fiber driver via the terminal 9 of level translator, light signal is launched away by the second fiber optic emitter TP1 again, pass through Optical Fiber Transmission, the second fiber optic receiver RP1 receiving optical signals also becomes it into the signal of telecommunication, this signal of telecommunication is sent to level translator through the terminal 11 of level translator and carries out shaping then, be about to its RS232 signal that becomes standard after, send into the J1-2 port of J1 by terminal 14 outputs.
Signal is converted into light signal at the end of registering one's residence by the signal of telecommunication in transmission course; be converted to the signal of telecommunication by light signal again and insert use equipment; in electric light-photoelectric conversion process; owing to adopt spread fiber; zero residual voltage (need not ground wire) on the signal line; protect interface equipment greatly, avoided the damage to equipment such as earth loop voltage, surge, indirect lightning strike, static.
Although embodiment of the present utility model is open as above, but it is not limited only to listed utilization in specification and the execution mode, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the utility model is not limited to specific details and illustrates here and describe.
Claims (4)
1. electric light-photoelectricity surge protector; wherein it is characterized in that: comprise the input of at least three ports and the output of at least three ports; also comprise a level translator that is connected between input and the output; the optical fiber driver; one first fiber optic emitter; one second fiber optic emitter; one first fiber optic receiver; one second fiber optic receiver; wherein; input; output wherein two input terminals that are connected with level translator of a port connect; wherein two lead-out terminals of level translator are connected with the optical fiber driver; the optical fiber driver and first fiber optic emitter; second fiber optic emitter connects; first fiber optic receiver; second fiber optic receiver is connected with two input terminals in addition of level translator; output is connected the 3rd port ground connection of input and output with the another port of input with two lead-out terminals in addition of level translator.
2. electric light according to claim 1-photoelectricity surge protector is characterized in that: described level translator is MAX232.
3. electric light according to claim 1 and 2-photoelectricity surge protector is characterized in that: described optical fiber driver is SN55451B.
4. electric light according to claim 3-photoelectricity surge protector, it is characterized in that: fiber optic emitter is selected HFBR-1522 for use, and fiber optic receiver adopts HFBR-2522.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020102755XU CN201590661U (en) | 2010-01-28 | 2010-01-28 | Electrooptical-optoelectrical surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020102755XU CN201590661U (en) | 2010-01-28 | 2010-01-28 | Electrooptical-optoelectrical surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201590661U true CN201590661U (en) | 2010-09-22 |
Family
ID=42750455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020102755XU Expired - Lifetime CN201590661U (en) | 2010-01-28 | 2010-01-28 | Electrooptical-optoelectrical surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201590661U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110503820A (en) * | 2018-05-16 | 2019-11-26 | 深圳市安特博防雷技术有限公司 | A kind of siganl thunder-proof device |
| CN114900238A (en) * | 2022-05-10 | 2022-08-12 | 许昌开普检测研究院股份有限公司 | Isolation applying method for surge test of shielded communication line |
-
2010
- 2010-01-28 CN CN201020102755XU patent/CN201590661U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110503820A (en) * | 2018-05-16 | 2019-11-26 | 深圳市安特博防雷技术有限公司 | A kind of siganl thunder-proof device |
| CN114900238A (en) * | 2022-05-10 | 2022-08-12 | 许昌开普检测研究院股份有限公司 | Isolation applying method for surge test of shielded communication line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105959063B (en) | Electrical port module | |
| CN201590661U (en) | Electrooptical-optoelectrical surge protector | |
| CN107395243A (en) | A kind of single-wire communication circuit | |
| CN101777936B (en) | Surge immunity test method of high-speed signal wire | |
| CN101872332A (en) | Network interface and serial port communication switching device and liquid crystal television debugging system | |
| CN202142847U (en) | Multi-stage pressure limiting signal surge protector | |
| CN101924459B (en) | Switching signal interface circuit based on double photoelectric isolation | |
| CN204180045U (en) | Based on the serial port level chance-over circuit of the intellectual education terminal of Internet of Things | |
| CN201699405U (en) | Transient strong electromagnetic pulse protection circuit of display interface of computer | |
| CN206759047U (en) | A kind of RF joints lightning prevention circuit | |
| CN210324194U (en) | Communication interface magnetic coupling isolation protection circuit | |
| CN203086131U (en) | Static electricity protection HDMI interface | |
| CN102006287A (en) | FlexRay network node with electrical isolation protective measure | |
| CN205319485U (en) | Signal cable coupling assembling of nai mode of vibration | |
| CN103199853A (en) | Optoelectronic isolation protector | |
| CN201270567Y (en) | Balance transmitter with isolation circuit | |
| CN206820734U (en) | Data signal isolation module | |
| CN203120114U (en) | Earphone interface protection circuit and terminal equipment thereof | |
| CN205912032U (en) | RS485 chip buffer circuit and RS485 chip | |
| CN208369210U (en) | A kind of electric current cut off device | |
| CN204290307U (en) | Communication terminal | |
| CN102969706A (en) | POE (Power Over Ethernet) power supply and lightning protection system and method | |
| CN205490596U (en) | Serial communication optoelectronic isolation device | |
| CN206471652U (en) | Magnetic force short-circuit device | |
| CN209267166U (en) | A kind of raising system signal integrity circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING OUDI'AN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING ALLDAY SCIENCE AND TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: North Fourth Ring Road 100083 Beijing Haidian District City 229 Haitai building room 918 Patentee after: Beijing Ou Dian Science and Technology Ltd. Address before: North Fourth Ring Road 100083 Beijing Haidian District City 229 Haitai building room 908 Patentee before: BEIJING ALLDAY SCIENCE AND TECHNOLOGY CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |