CN202474803U - VDSL photoelectric safety protection unit - Google Patents
VDSL photoelectric safety protection unit Download PDFInfo
- Publication number
- CN202474803U CN202474803U CN2011205483715U CN201120548371U CN202474803U CN 202474803 U CN202474803 U CN 202474803U CN 2011205483715 U CN2011205483715 U CN 2011205483715U CN 201120548371 U CN201120548371 U CN 201120548371U CN 202474803 U CN202474803 U CN 202474803U
- Authority
- CN
- China
- Prior art keywords
- out terminal
- leading
- unit
- wire
- vdsl
- 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 - Fee Related
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Disclosed is a VDSL photoelectric safety protection unit, comprising a first wire-in terminal and a second wire-in terminal used for being connected with a telephone cable, a first wire-out terminal and a second wire-out terminal used for being connected with a communication device, and a first output terminal and a second output terminal used for being connected with a general distributing frame alarm system, wherein the first wire-in terminal is sequentially connected with the first wire-out terminal through an over-current temperature-sensitive unit; the second wire-in terminal is sequentially connected with the second wire-out terminal through the over-current temperature-sensitive unit; the over-current temperature-sensitive unit comprises sequentially and serially connected over-current protector and thermistor; the first wire-out terminal and the second wire-out terminal are connected by two serially connected overvoltage protectors; the first output terminal is connected with the intermediate connection point of the two serially connected overvoltage protection devices; and the second output terminal is connected with the intermediate connection point of the two serially connected overvoltage protectors via a light-operated alarm circuit. The VDSL photoelectric safety protection unit features excellent protection effect, simple structure, and low cost.
Description
Technical field
The utility model relates to the supporting security appliance field of communication equipment main frame, is specifically related to a kind of VDSL photoelectricity security protection unit.
Background technology
In the communication equipment main frame, use Security Unit, this Security Unit is connected between telecommunication cable and the telecommunication exchange equipment, is used for telecommunication cable and telecommunication exchange equipment are carried out the protection of short circuit, thunderbolt, overcurrent, overvoltage etc.When high voltage or big current failure electricity are arranged on the communication line; Security Unit can be introduced ground alarm simultaneously with the fault electricity by closed voluntarily ground short circuit; Thereby avoid big electric current to flow into telecommunication exchange equipment,, realize protection telecommunication exchange equipment to the then automatic current limiting of little failure of the current.This type of Security Unit is also referred to as the short-circuit type Security Unit, and the short-circuit type Security Unit generally is disposable use, and the back of breaking down is changed, and therefore waste is bigger.In addition, though the short-circuit type Security Unit has been protected telecommunication exchange equipment, because the existence of fault electricity in the communication line still can burn out telecommunication cable, so the short-circuit type Security Unit only protects calculator room equipment can not protect the communications cable.
Among the main frame standard YD/T694-2004 that the Ministry of Information Industry newly issues; Require to adopt the breakaway-element Security Unit, when high voltage, high current fault electricity were arranged in the communication line, Security Unit broke off voluntarily and alarms; Thereby realize duplicate protection to the communications cable and telecommunication exchange equipment; To then automatic current limiting of low current fault, the breakaway-element Security Unit generally also is disposable, and it is still unresolved to waste bigger problem.Industry is developed many reusable breakaway-element Security Units to the big phenomenon of disposable use Security Unit waste, comprises metal two-man act sheet thermal, soft magnet thermal, temperature-sensitive ratchet thermal, integrated package protection etc.Wherein the Security Unit of metal two-man act sheet thermal, soft magnet thermal, temperature-sensitive ratchet thermal all needs after the protection action takes place, just can be re-used by manual reset, and integrated package protection Security Unit cost is high, is difficult for promoting the use of.Particularly when carrying out the YD/T694-2004 standard, require big current open alarm and exchange the little electric current alarm in 187V 600 Europe, if still adopt above-mentioned electromechanical Security Unit, it realizes that difficulty is very big.
The utility model content
The technical problem that the utility model will solve provides good, simple in structure, the with low cost VDSL photoelectricity security protection unit of a kind of protection effect.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of VDSL photoelectricity security protection unit; First leading-out terminal that comprise first end of incoming cables that is used for linking to each other and second end of incoming cables, is used for linking to each other with communication equipment with telephone cable with second leading-out terminal, be used for first output and second output that link to each other with the main frame warning system; Said first end of incoming cables links to each other with first leading-out terminal through the overcurrent temperature responsive unit successively; Said second end of incoming cables links to each other with second leading-out terminal through the overcurrent temperature responsive unit successively; Said overcurrent temperature responsive unit comprises the over-current protection device and the thermistor of series connection successively; Overvoltage protective device through two serial connections between said first leading-out terminal and second leading-out terminal links to each other; Said first output links to each other with the intermediate connection point of the overvoltage protective device of said two serial connections, and said second output links to each other with the intermediate connection point of the overvoltage protective device of said two serial connections through a light-operated warning circuit.
Further improvement as technique scheme:
The link of the said overvoltage protective device and first leading-out terminal, second leading-out terminal is connected between the over-current protection device and thermistor of said overcurrent temperature responsive unit.
Said overvoltage protective device is a solid discharging tube.
Said over-current protection device comprises the thermistor and the thermal fuse of series connection successively.
Said light-operated warning circuit comprises the luminescent device and the current-limiting resistance of series connection successively.
Be provided with the light-operated warning circuit parallelly connected between said first end of incoming cables and first leading-out terminal, be provided with the light-operated warning circuit parallelly connected between said second end of incoming cables and second leading-out terminal with said overcurrent temperature responsive unit with said overcurrent temperature responsive unit.
The utlity model has following advantage:
1, this photoelectricity Security Unit of the utility model comprises that first end of incoming cables links to each other with first leading-out terminal through the overcurrent temperature responsive unit successively; The overcurrent temperature responsive unit comprises the over-current protection device and the thermistor of series connection successively; First output links to each other with the intermediate connection point of the overvoltage protective device of said two serial connections; Second output links to each other with the intermediate connection point of the overvoltage protective device of said two serial connections through a light-operated warning circuit, have the use components and parts seldom, advantage that protection effect is good, simple in structure, with low cost.
2, the utility model provides high and low double voltage protection through the overvoltage protective device with A, B, C, D ground connection; Utilize overcurrent protection and light-operated alarm sample circuit to provide with " disconnection " formula overcurrent protection between A and C and B and D; And when overcurrent protection is provided, utilizes light-operated warning circuit realization self alarm and send alarm signal to the main frame warning system through S, E end.
3, the photoelectricity Security Unit of the utility model is full self-resetting type, and employed all components and parts can runback after carrying out overvoltage, overcurrent protection and light-operated alarm sampling, need not to change and can recover original performance.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the frame structure sketch map of the utility model embodiment.
Marginal data: 1, overcurrent temperature responsive unit; 11, over-current protection device; 12, thermistor; 13, overvoltage protective device; 14, light-operated warning circuit.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
As shown in Figure 1; The VDSL photoelectricity security protection unit of present embodiment comprises the first end of incoming cables A that is used for linking to each other with telephone cable and the second end of incoming cables B, the first leading-out terminal C and the second leading-out terminal D, the first output S that is used for linking to each other with the main frame warning system and the second output E that are used for linking to each other with communication equipment; The first end of incoming cables A links to each other with the first leading-out terminal C through overcurrent temperature responsive unit 1 successively; The second end of incoming cables B links to each other with the second leading-out terminal D through overcurrent temperature responsive unit 1 successively; Overcurrent temperature responsive unit 1 comprises the over-current protection device 11 and thermistor 12 of series connection successively; Overvoltage protective device 13 through two serial connections between the first leading-out terminal C and the second leading-out terminal D links to each other; The first output S links to each other with the intermediate connection point of the overvoltage protective device 13 of two serial connections, and the second output E links to each other with the intermediate connection point of the overvoltage protective device 13 of two serial connections through a light-operated warning circuit 14.
The link of the overvoltage protective device 13 of present embodiment and the first leading-out terminal C, the second leading-out terminal D is connected between the over-current protection device 11 and thermistor 12 of overcurrent temperature responsive unit 1.
The overvoltage protective device 13 of present embodiment is a solid discharging tube.
The over-current protection device 11 of present embodiment comprises the thermistor and the thermal fuse of series connection successively.
The light-operated warning circuit 14 of present embodiment comprises the luminescent device and the current-limiting resistance of series connection successively.
Be provided with between the present embodiment first end of incoming cables A and the first leading-out terminal C and be provided with the light-operated warning circuit 14 parallelly connected between light-operated warning circuit 14, the second end of incoming cables B parallelly connected and the second leading-out terminal D with overcurrent temperature responsive unit 1 with overcurrent temperature responsive unit 1.
The above only is the preferred implementation of the utility model, and the protection range of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection range of the utility model.Should be pointed out that for those skilled in the art in the some improvement and the retouching that do not break away under the utility model principle prerequisite, these improvement and retouching also should be regarded as the protection range of the utility model.
Claims (6)
1. VDSL photoelectricity security protection unit; First leading-out terminal (C) that comprise first end of incoming cables (A) that is used for linking to each other and second end of incoming cables (B), is used for linking to each other with communication equipment with telephone cable with second leading-out terminal (D), be used for first output (S) and second output (E) that link to each other with the main frame warning system; It is characterized in that: said first end of incoming cables (A) links to each other with first leading-out terminal (C) through overcurrent temperature responsive unit (1) successively; Said second end of incoming cables (B) links to each other with second leading-out terminal (D) through overcurrent temperature responsive unit (1) successively; Said overcurrent temperature responsive unit (1) comprises the over-current protection device (11) and the thermistor (12) of series connection successively; Overvoltage protective device (13) through two serial connections between said first leading-out terminal (C) and second leading-out terminal (D) links to each other; Said first output (S) links to each other with the intermediate connection point of the overvoltage protective device (13) of said two serial connections, and said second output (E) links to each other with the intermediate connection point of the overvoltage protective device (13) of said two serial connections through a light-operated warning circuit (14).
2. VDSL photoelectricity security protection according to claim 1 unit is characterized in that: the link of said overvoltage protective device (13) and first leading-out terminal (C), second leading-out terminal (D) is connected between the over-current protection device (11) and thermistor (12) of said overcurrent temperature responsive unit (1).
3. VDSL photoelectricity security protection according to claim 2 unit is characterized in that: said overvoltage protective device (13) is a solid discharging tube.
4. VDSL photoelectricity security protection according to claim 2 unit is characterized in that: said over-current protection device (11) comprises the thermistor and the thermal fuse of series connection successively.
5. VDSL photoelectricity security protection according to claim 2 unit is characterized in that: said light-operated warning circuit (14) comprises the luminescent device and the current-limiting resistance of series connection successively.
6. according to claim 1 or 2 or 3 or 4 or 5 described VDSL photoelectricity security protection unit; It is characterized in that: be provided with the light-operated warning circuit (14) parallelly connected between said first end of incoming cables (A) and first leading-out terminal (C), be provided with the light-operated warning circuit (14) parallelly connected between said second end of incoming cables (B) and second leading-out terminal (D) with said overcurrent temperature responsive unit (1) with said overcurrent temperature responsive unit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205483715U CN202474803U (en) | 2011-12-23 | 2011-12-23 | VDSL photoelectric safety protection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205483715U CN202474803U (en) | 2011-12-23 | 2011-12-23 | VDSL photoelectric safety protection unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474803U true CN202474803U (en) | 2012-10-03 |
Family
ID=46922931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205483715U Expired - Fee Related CN202474803U (en) | 2011-12-23 | 2011-12-23 | VDSL photoelectric safety protection unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202474803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425469A (en) * | 2013-09-11 | 2015-03-18 | 上海蓝安高分子电子有限公司 | Integrated semiconductor discharge tube |
-
2011
- 2011-12-23 CN CN2011205483715U patent/CN202474803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425469A (en) * | 2013-09-11 | 2015-03-18 | 上海蓝安高分子电子有限公司 | Integrated semiconductor discharge tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202939292U (en) | Direct-current power supply monitoring circuit | |
| CN101752858B (en) | Multi-gap metal gas discharge tube power supply over-voltage protection module | |
| CN201478825U (en) | Power supply over voltage protection module for multi-gap metal gas discharge tube | |
| CN102496920B (en) | Surge protection device and method for detecting faults by using surge protection device | |
| CN205921378U (en) | Surge protection device | |
| CN202474803U (en) | VDSL photoelectric safety protection unit | |
| CN203399102U (en) | Transceiver circuit | |
| CN203850830U (en) | Intelligent anti-thunder case | |
| CN201708517U (en) | RS-485 communication interface protective circuit | |
| CN201004353Y (en) | External serial clearance arrester with failure indication device | |
| CN203191443U (en) | Lightning arrester leakage current on-line monitoring device | |
| CN203261026U (en) | Mbps network surge protection device with POE function | |
| CN106655139B (en) | Surge Protector | |
| CN204118718U (en) | The system that a kind of POE Ethernet provides surge energy to control | |
| CN2893719Y (en) | Single-phase and three phase anti-thunder electronic type electric energy meter | |
| CN200979987Y (en) | A protective unit using an over-current and over-voltage protection TBU unit | |
| CN201061140Y (en) | Single phase AC power supply line and signal circuit double protected lightning protection device | |
| CN202888824U (en) | Lightning protection device | |
| CN203193272U (en) | Convenient-to-dismount dual-protection surge protection device | |
| CN202633933U (en) | Surge protector circuit of low-voltage power supply | |
| CN206533129U (en) | A kind of lightning protection circuit for electronic equipment RS485 interfaces | |
| CN201319501Y (en) | Steady-state error interference preventing powered device | |
| CN202997542U (en) | Lightning protection device adapter box of filtering type telephone | |
| CN203377583U (en) | Holder RS485 communication interface protection circuit | |
| CN202930932U (en) | Novel lightning protection apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20131223 |