CN102916816A - Lightning-proof router of digital subscriber line - Google Patents
Lightning-proof router of digital subscriber line Download PDFInfo
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- CN102916816A CN102916816A CN2011102199158A CN201110219915A CN102916816A CN 102916816 A CN102916816 A CN 102916816A CN 2011102199158 A CN2011102199158 A CN 2011102199158A CN 201110219915 A CN201110219915 A CN 201110219915A CN 102916816 A CN102916816 A CN 102916816A
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- 230000001052 transient effect Effects 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 abstract 2
- 208000025274 Lightning injury Diseases 0.000 abstract 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
A lightning-proof router of a digital subscriber line comprises a central control unit, a wide area network interface unit and a local area network interface unit which are integrated on a printed circuit board. The central control unit is respectively electrically connected with the wide area network interface unit and the local area network interface unit. The lightning-proof router is characterized in that discharge gaps are arranged on the printed circuit board, lightning stroke signals of a signal transmission line of the wide area network interface unit are guided to a signal transmission line of the local area network interface unit by the discharge gaps and are grounded to be released via a computer terminal by a network cable, and accordingly the lightning-proof grade of user-side hardware equipment is effectively improved.
Description
[technical field]
The present invention relates to thunder resisting equipment, particularly relate to XDSL lightning protection router.
[background technology]
In East China of China, the regional thunderstorm such as south China, Central China is frequent.Along with the arrival of thunder shower high-incidence season, the annual thunderbolt electrical equipment event that all can perplex at this moment numerous users has also entered the stage of taking place frequently thereupon.After the storm accompanied by peals of thunder, originally use the normal network equipment just to become accidentally " metal scraps ", lose huge.Especially some places of business, for example Internet bar, retail business and all dependence networks carry out professional enterprise, and the loss of being struck by lightning has been not only the loss of hardware just, owing to the business that network causes is ended or contact inconvenience, cause operational interruption, loss just can't have been estimated more.Because by digital subscriber line (X Digital Subscriber Line, XDSL) the digital subscriber line telephone line interface on (for example RJ11 interface) uses telephone wire as outside line, from Digital Subscriber Line Access Multiplexer (Digital Subscriber Line Access Multiplexer, DSLAM) local side is incorporated into terminal in the family through the network interface (for example RJ45) of digital subscriber line with netting twine, the centre often can't be avoided at outdoor cabling, in network, be subject to thunderbolt most and cause the damage of ustomer premises access equipment (Customer Premise Equipment, CPE).It is particularly important that the digital subscriber line router that like this lightning protection rank is high just shows.But digital subscriber line router generally adopts the ground that suspends as terminal equipment, and bulk volume is little to cause the digital subscriber line router can't be by effectively the release lightning surge signal of high-voltage large current of the earth.By analyzing the phenomenon of thunderbolt, it mainly is two types that discovering device is subject to lightning damage: the current potential of responding between consciousness digital subscriber line circuit two lines is different, forms enough some potential differences, and guiding discharge is called the differential mode thunderbolt; Another kind is digital subscriber line circuit two line earth potential differences, and guiding discharge is called the common mode thunderbolt.
Determined just to be difficult to release for powerful common mode lightning strike signals at product form.And the lightning strike signals that the digital subscriber line telephone wire is generally sensed as the twisted-pair feeder of two lines all is identical, often all is that the common mode lightning strike signals causes Frequent Troubles in other words.The terminal equipment that some differential mode damages is also owing to the inhomogeneous difference mode signal that is converted into of common mode lightning strike signals discharge causes.
[summary of the invention]
Based on this, be necessary to provide a kind of lightning protection router of energy Effective Raise lightning protection grade.
A kind of XDSL lightning protection router, comprise the central control unit, Wide Area Network interface unit and the LAN interface unit that are integrated on the printed circuit board (PCB), described central control unit is electrically connected with described Wide Area Network interface unit and local network interface unit respectively, it is characterized in that, described printed circuit board (PCB) is provided with discharging gap, one end of described discharging gap is connected with the signal transmssion line of described Wide Area Network interface unit, and the other end is connected with the signal transmssion line of described LAN interface unit.
In a preferred embodiment, the spacing of described discharging gap is 4.1 millimeters.
In a preferred embodiment, also comprise the Ethernet transformer of being located between described LAN interface and the local network interface unit, the isolation between Ethernet transformer and secondary coil is 5.5 kilovolts.
In a preferred embodiment, also comprise the digital subscriber line transformer of being located between Wide Area Network interface and the Wide Area Network interface unit, the isolation of described digital subscriber line transformer and Ethernet transformer is 9 kilovolts.
In a preferred embodiment, the withstand voltage electric capacity that comprises in the described Ethernet transformer is straight cutting FS type high pressure ceramic disc capacitor, and the bipod spacing is 7.5 millimeters, and withstand voltage is 3 kilovolts/thousand pico farads.
In a preferred embodiment, also comprise be connected to the Wide Area Network interface to the discharge tube between the line.
In a preferred embodiment, also comprise transient voltage suppressor diode, quantity is eight, is divided into four groups, every group each two, wherein:
The anode of first group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two transmitted signal lines of described digital subscriber line line transformer secondary coil;
The anode of second group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two reception holding wires of described digital subscriber line line transformer secondary coil;
The anode of the 3rd group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two transmitted signal lines of described Ethernet transformer secondary output coil;
The anode of the 4th group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two reception holding wires of described Ethernet transformer secondary output coil.
In a preferred embodiment, also comprise two pressure-sensitive devices in parallel with each group transient voltage suppressor diode.
By the adjustment to discharging gap, the lightning strike signals of the signal transmssion line of Wide Area Network interface unit can be directed to the signal transmssion line of LAN interface unit, thereby lightning strike signals can be released by terminal ground connection by netting twine.
Further, the raising of the raising of ethernet line transformer isolation degree, high pressure ceramic disc capacitor withstand voltage and spacing are increased to 7.5 millimeters straight cutting F.S types and high performance discharge tube and transient voltage suppressor diode as protection, thereby effectively raise the lightning protection grade of digital subscriber line user side hardware device.
[description of drawings]
Fig. 1 is the structural representation of anti-lightning strike digital subscriber line router lightning prevention circuit;
Fig. 2 is anti-lightning strike digital subscriber line router structural representation;
Fig. 3 is ethernet interface circuit lightning prevention circuit figure;
Fig. 4 is Wide Area Network interface unit thunder strike circuit figure.
[embodiment]
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention is applied to the lightning protection field, lightning protection grade that can the Effective Raise XDSL lightning protection router.As shown in Figure 2, in this enforcement, a kind of XDSL lightning protection router, comprise the central control unit 700, Wide Area Network interface unit 140 and the LAN interface unit 230 that are integrated on the printed circuit board (PCB), central control unit 700 is electrically connected with Wide Area Network interface unit 140 and local network interface unit 230 respectively.As shown in Figure 1, printed circuit board (PCB) is provided with discharging gap 500, and an end of discharging gap 500 is connected with the signal transmssion line 150 of Wide Area Network interface unit 140, and the other end is connected with the signal transmssion line 250 of LAN interface unit 230.
As one embodiment of the present invention, discharging gap 500 be two, between discharge tip F1, the F3 and the spacing between F2, the F4 be preferably 4.1 millimeters.In other were implemented, according to self circuit parameter of router, discharging gap 500 may be selected to be 4.0 millimeters or be 4.2 millimeters etc.
XDSL lightning protection router in this enforcement also comprises the Ethernet transformer 210 of being located between LAN interface 250 and the local network interface unit 230, as one embodiment of the present invention, the isolation between Ethernet transformer 210 primary coils and secondary coil is 5.5 kilovolts.
In this enforcement, this XDSL lightning protection router also comprises the digital subscriber line transformer 120 of being located between Wide Area Network interface 150 and the Wide Area Network interface unit 140, as one embodiment of the present invention, the isolation of digital subscriber line transformer 120 and Ethernet transformer 210 is 9 kilovolts.
As shown in Figure 3, as one embodiment of the present invention, the withstand voltage electric capacity 400 that comprises in the Ethernet transformer 210 is straight cutting FS type high pressure ceramic disc capacitor, and the bipod spacing is 7.5 millimeters, and withstand voltage is 3 kilovolts/thousand pico farads.
As shown in Figure 1, XDSL lightning protection router also comprise be connected to Wide Area Network interface 150 to the discharge tube 110 between the line.
As shown in Figure 4, XDSL lightning protection router also comprises transient voltage suppressor diode 800, and quantity is eight, is divided into four groups, every group each two, wherein:
The anode of first group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two transmitted signal lines 820 of described digital subscriber line line transformer secondary coil;
The anode of second group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two reception holding wires 840 of described digital subscriber line line transformer secondary coil;
The anode of the 3rd group of described transient voltage suppressor diode (not shown) connects back-to-back, and negative terminal is connected electrically in respectively on two transmitted signal line (not shown) of described Ethernet transformer secondary output coil;
The anode of the 4th group of described transient voltage suppressor diode (not shown) connects back-to-back, and negative terminal is connected electrically in respectively on two reception holding wire (not shown) of described Ethernet transformer secondary output coil.
Also comprise two pressure-sensitive devices 900 in parallel with each group transient voltage suppressor diode 800.
Technique scheme, by discharging gap 500 lightning strike signals of the signal transmssion line 150 of Wide Area Network interface unit 140 is directed to the signal transmssion line 250 of LAN interface unit 230, thereby lightning strike signals can be released by terminal 300 ground connection by netting twine.This bleed-off circuit can release simultaneously common mode lightning strike signals, differential mode lightning strike signals.
Isolation between the withstand voltage electric capacity 400 that comprises in the Ethernet transformer 210, raising Ethernet transformer and secondary coil and the isolation of digital subscriber line transformer 120 and Ethernet transformer 210 are in order to improve the anti-lightning high voltage capability of user side hardware device.
Withstand voltage electric capacity is preferably straight cutting FS type high pressure ceramic disc capacitor in the present embodiment, and withstand voltage is 3 kilovolts/thousand pico farads, and electric capacity bipod spacing is 7.5 millimeters.
In the process of releasing, often because the inhomogeneous differential mode lightning strike signals that is converted into of common mode lightning strike signals discharge.
For preventing that the differential mode lightning strike signals from causing the damage of user side hardware device, the differential mode lightning strike signals adopts the two-stage protection:
High performance discharge tube is adopted in first order protection, and preferred model is the RVS045027040 discharge tube in the present embodiment;
Second level protection transient voltage suppressor diode, preferred model is the SD05T1 transient voltage suppressor diode in the present embodiment.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (8)
1. XDSL lightning protection router, comprise the central control unit, Wide Area Network interface unit and the LAN interface unit that are integrated on the printed circuit board (PCB), described central control unit is electrically connected with described Wide Area Network interface unit and local network interface unit respectively, it is characterized in that, described printed circuit board (PCB) is provided with discharging gap, one end of described discharging gap is connected with the signal transmssion line of described Wide Area Network interface unit, and the other end is connected with the signal transmssion line of described LAN interface unit.
2. XDSL lightning protection router according to claim 1 is characterized in that, the spacing of described discharging gap is 4.1 millimeters.
3. XDSL lightning protection router according to claim 1, it is characterized in that, also comprise the Ethernet transformer of being located between described LAN interface and the local network interface unit, the isolation between Ethernet transformer and secondary coil is 5.5 kilovolts.
4. according to claim 1 or 3 described XDSL lightning protection routers, it is characterized in that, also comprise the digital subscriber line transformer of being located between Wide Area Network interface and the Wide Area Network interface unit, the isolation of described digital subscriber line transformer and Ethernet transformer is 9 kilovolts.
5. XDSL lightning protection router according to claim 3 is characterized in that, the withstand voltage electric capacity that comprises in the described Ethernet transformer is straight cutting FS type high pressure ceramic disc capacitor, and the bipod spacing is 7.5 millimeters, and withstand voltage is 3 kilovolts/thousand pico farads.
6. XDSL lightning protection router according to claim 1 is characterized in that, also comprise be connected to the Wide Area Network interface to the discharge tube between the line.
7. XDSL lightning protection router according to claim 4 is characterized in that, also comprises transient voltage suppressor diode, and quantity is eight, is divided into four groups, every group each two, wherein:
The anode of first group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two transmitted signal lines of described digital subscriber line line transformer secondary coil;
The anode of second group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two reception holding wires of described digital subscriber line line transformer secondary coil;
The anode of the 3rd group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two transmitted signal lines of described Ethernet transformer secondary output coil;
The anode of the 4th group of described transient voltage suppressor diode connects back-to-back, and negative terminal is connected electrically in respectively on two reception holding wires of described Ethernet transformer secondary output coil.
8. XDSL lightning protection router according to claim 7 is characterized in that, also comprises two pressure-sensitive devices in parallel with each group transient voltage suppressor diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110219915.8A CN102916816B (en) | 2011-08-02 | 2011-08-02 | XDSL lightning protection router |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110219915.8A CN102916816B (en) | 2011-08-02 | 2011-08-02 | XDSL lightning protection router |
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| Publication Number | Publication Date |
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| CN102916816A true CN102916816A (en) | 2013-02-06 |
| CN102916816B CN102916816B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110219915.8A Active CN102916816B (en) | 2011-08-02 | 2011-08-02 | XDSL lightning protection router |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840447A (en) * | 2014-02-26 | 2014-06-04 | 中国联合网络通信集团有限公司 | Lightning protection system and method |
| CN103986586A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Lightning-protection router |
| CN111935558A (en) * | 2020-06-28 | 2020-11-13 | 深圳市普威技术有限公司 | Digital subscriber line lightning protection system and fool-proof method and device thereof |
| CN114221313A (en) * | 2021-12-07 | 2022-03-22 | 深圳市共进电子股份有限公司 | Protection system and floating equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0917264A1 (en) * | 1997-11-12 | 1999-05-19 | Funai Electric Co., Ltd. | Discharge gap device |
| CN101521579A (en) * | 2008-02-27 | 2009-09-02 | 上海贝曼元脉信息技术有限公司 | Lightning protective ADSL router |
| CN101933407A (en) * | 2008-02-08 | 2010-12-29 | 索尼爱立信移动通讯有限公司 | Embedded spark gap |
| CN202190277U (en) * | 2011-08-02 | 2012-04-11 | 深圳市卓翼科技股份有限公司 | XDSL lightning protection router |
-
2011
- 2011-08-02 CN CN201110219915.8A patent/CN102916816B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0917264A1 (en) * | 1997-11-12 | 1999-05-19 | Funai Electric Co., Ltd. | Discharge gap device |
| CN101933407A (en) * | 2008-02-08 | 2010-12-29 | 索尼爱立信移动通讯有限公司 | Embedded spark gap |
| CN101521579A (en) * | 2008-02-27 | 2009-09-02 | 上海贝曼元脉信息技术有限公司 | Lightning protective ADSL router |
| CN202190277U (en) * | 2011-08-02 | 2012-04-11 | 深圳市卓翼科技股份有限公司 | XDSL lightning protection router |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840447A (en) * | 2014-02-26 | 2014-06-04 | 中国联合网络通信集团有限公司 | Lightning protection system and method |
| CN103986586A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Lightning-protection router |
| CN111935558A (en) * | 2020-06-28 | 2020-11-13 | 深圳市普威技术有限公司 | Digital subscriber line lightning protection system and fool-proof method and device thereof |
| CN111935558B (en) * | 2020-06-28 | 2023-10-24 | 深圳市联洲国际技术有限公司 | A lightning protection system for digital subscriber lines and its anti-fooling method and device |
| CN114221313A (en) * | 2021-12-07 | 2022-03-22 | 深圳市共进电子股份有限公司 | Protection system and floating equipment |
| CN114221313B (en) * | 2021-12-07 | 2023-09-15 | 深圳市共进电子股份有限公司 | Protection system and floating equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102916816B (en) | 2016-05-04 |
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Owner name: TIANJIN ZHUODA TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20130322 |
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Effective date of registration: 20130322 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili Hirayama Private Technology Industrial Park 5 Applicant after: Shenzhen Zowee Technology Co., Ltd. Applicant after: Zowee Tianjin Technology Co., Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili Hirayama Private Technology Industrial Park 5 Applicant before: Shenzhen Zowee Technology Co., Ltd. |
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