CN204362050U - A kind of light supply apparatus - Google Patents
A kind of light supply apparatus Download PDFInfo
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- CN204362050U CN204362050U CN201520007013.1U CN201520007013U CN204362050U CN 204362050 U CN204362050 U CN 204362050U CN 201520007013 U CN201520007013 U CN 201520007013U CN 204362050 U CN204362050 U CN 204362050U
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- housing
- supply apparatus
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- light supply
- branching device
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Abstract
The utility model provides a kind of light supply apparatus, comprising: housing; Be arranged in housing, the control be connected with power supply and protective circuit; Be arranged in housing, with the laser assembly controlled and protective circuit is connected; Be arranged in housing, the optical branching device be connected with described laser assembly, described optical branching device has the output port of an input port and N number of same light power output, and wherein, N is 2
m, M is positive integer; The laser that described laser assembly exports is assigned to N number of port by described optical branching device.Light supply apparatus of the present utility model possesses multiple output port, can significantly improve testing efficiency.Described in the application's motion, the Output optical power of light source is only the 1/N of existing testing light source, and potential safety hazard is less.The technology of the utility model light supply apparatus realizes easily, cheap.
Description
Technical field
The utility model relates to transmission detection technique field, particularly relates to a kind of light supply apparatus.
Background technology
As shown in Figure 1, FTTH (fiber to the home) subscriber optical cable be from subscriber household to outdoor first movable distributing point optical cable; This movable distributing point is often referred to user access point 100, i.e. the separation built of developer and carrier network.A straight-through optical fiber is all had for this user from user access point 100 to each subscriber household.User is entered within doors by connector box 200 and fiber-dividing box 300 from user access point 100.Wherein subscriber optical cable A comprises 72 cores, and optical cable A1, optical cable A2 and optical cable A3 are respectively 12 cores, 12 cores and 48 cores.
When FTTH subscriber optical cable completion of works, attenuation test need be carried out to from user access point to the optical fiber link of each subscriber household.Due to the length of FTTH subscriber optical cable shorter (generally only having tens to hundreds of rice), adopt conventional optical time domain transmitter (ODTR) test often can not reach good effect, therefore, current FTTH subscriber optical cable generally adopts light source and light power meter to test.As shown in Figure 2, the testing light source 400 of respective wavelength is set at user access point 100, testing light source 400 enters fibre distribution frame ODF by jumping fiber 500, user access point 100 is connected to fiber-dividing box 300 by subscriber optical cable A, optical cable is drawn to user F1, user F2 etc. by fiber-dividing box, connect light power meter 600 light power meter by using jumping fiber 500 in each subscriber household and carry out measuring light power, in figure, represent an optical fiber link from the arrow of user access point 100 to user F1.
The shortcoming of prior art is as follows: the testing light source that existing method of testing uses only has an output port, when carrying out different user link test, need a people, at user access point, the output port of light source is connected to by jumping fiber the terminal that on ODF unit, this user is corresponding, another people tests in user side, usual need two people one group the cooperation keeping close just can complete the test of multiple user, and testing efficiency is lower.
For adapting to many scrnario testing needs such as long-distance, city, the utilizing emitted light power of existing testing light source is general comparatively large (typical emission luminous power is about-6dBm).When the short distance test this for FTTH of existing testing light source, due to the attenuation of link very little (< 0.4dB), the laser power that user side exports is still comparatively large, there is certain potential safety hazard (irradiate as made laser because of carelessness and can cause serious injury into eyes).
Utility model content
Carry out needing to test in each user family when optical fiber link carries out attenuation test to overcome in prior art, cause the low technical problem simultaneously with potential safety hazard of testing efficiency, the utility model provides a kind of light supply apparatus.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
The utility model provides a kind of light supply apparatus, comprising:
Housing;
Be arranged in housing, the control be connected with power supply and protective circuit;
Be arranged in housing, with the laser assembly controlled and protective circuit is connected;
Be arranged in housing, the optical branching device be connected with described laser assembly, described optical branching device has the output port of an input port and N number of same light power output, and wherein, N is 2
m, M is positive integer; The laser that described laser assembly exports is assigned to N number of port by described optical branching device.
Furthermore, in described light supply apparatus, each described output port is all connected with an adapter.
Furthermore, in described light supply apparatus, described housing is cuboid or the square bodily form, and the relative two sides of described housing are distributed with the described output port of a row respectively.
Furthermore, in described light supply apparatus, the two ends of often arranging described output port all arrange a shielding angle, and upper and lower surface and the side of each described shielding angle all protrude from described port.
Furthermore, in described light supply apparatus, described housing upper surface arranges multiple function button and/or a display screen.
The beneficial effects of the utility model are: light supply apparatus of the present utility model possesses multiple output port, can significantly improve testing efficiency.First at user access point, multiple ports of light source are connected to multiple link port to be tested, then test one by one at user side, only need a people just once can complete the test of multilink.The luminous power that port exports is less, and potential safety hazard is little.The Output optical power of existing testing light source is comparatively large, and there is certain potential safety hazard, described in the application's motion, the Output optical power of light source is only the 1/N of existing testing light source, and potential safety hazard is less.Technology realizes easily, cheap.
Accompanying drawing explanation
Fig. 1 represents fiber to the home FTTH subscriber optical cable networking schematic diagram in prior art;
Fig. 2 represents fiber to the home FTTH subscriber optical cable test schematic diagram in prior art;
Fig. 3 represents the principle of compositionality figure of light supply apparatus in the utility model embodiment;
Fig. 4 represents the appearance assumption diagram of light supply apparatus in the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.
The utility model provides a kind of light supply apparatus, for generation of fiber to the home FTTH subscriber optical cable test needed for light source, described light supply apparatus comprises power supply, and described light supply apparatus also comprises: housing, be arranged in housing, the control be connected with power supply and protective circuit; Be arranged in housing, with the laser assembly controlled and protective circuit is connected; Be arranged in housing, the optical branching device be connected with described laser assembly, described optical branching device has the output port of an input port and N number of same light power output, and wherein, N is 2
m, M is positive integer; The laser that described laser assembly exports is assigned to N number of port by described optical branching device.
In light supply apparatus of the present utility model, power supply, control and protective circuit and laser assembly are connected successively.The laser produced is by being assigned to multiple port after path-splitting device.By multiple output port testing light source, testing efficiency can be significantly improved.First at user access point, multiple ports of light source are connected to multiple link port to be tested, then test one by one at user side, only need a people just once can complete the test of multilink.The luminous power that port exports is less, and potential safety hazard is little.The Output optical power of existing testing light source is comparatively large, and there is certain potential safety hazard, described in the application's motion, the Output optical power of light source is only the 1/N of existing testing light source, and potential safety hazard is less.
Light supply apparatus of the present utility model comprises power supply, control and protective circuit, laser assembly, optical branching device and adapter.The output of laser assembly connects a 1 × N (N can be 8,16,32 or 64) optical branching device, and N number of output of optical branching device is all connected with adapter.Described 1 × N optical branching device is even light splitting type.Wherein, power supply, control and protective circuit, laser module and path-splitting device are all arranged in a housing.
With reference to shown in Fig. 3, operation principle of the present utility model is, the laser that laser assembly exports is divided evenly the N number of port to splitter through 1 × N optical branching device, and the luminous power of each port is about the 1/N of laser assembly power output.Wherein N is positive integer.Such as, the laser assembly typical case Output optical power of existing testing light source is-6dBm, and after connecting 1 × 32 optical branching device (attenuation is about 17.1dB), the power output of every port is about-23.1dBm; And existing light power meter at least can measure the luminous power of-60dBm, so when total attenuation of optical fiber link is no more than-23.1-(-60)=36.9dB, the utility model all can meet testing requirement.Calculate by the typical attenuation model (articulation attenuation 2dB, optical fiber and attenuation 0.45dB/km) of FTTH subscriber optical cable, maximum detection examination reaches the optical link of 77.5km, can adapt to the testing requirement of all FTTH scenes.
With reference to shown in Fig. 4, for the schematic appearance of 16 port optical source apparatus.Housing is a cuboid or the square bodily form, can certainly be made into other shape according to the actual requirements.The relative two sides of housing arrange row's port respectively, often arrange described port two ends one shielding angle is all set.N number of output port of the present utility model is all connected with adapter, so that be connected with jumping fiber.16 light source port ones with SC (a kind of light transceiver interface) type adapter, the both sides of the light supply apparatus that is placed in, 8, every side, each port is exposed to outside housing.Certainly, the quantity of housing both sides port also can increase accordingly according to the actual requirements or reduce, the setting position of port also can design according to different requirements, the such as single port design in housing side or the many sides of housing arrange many rows, to reach the requirement of different test environment.Four angles of light supply apparatus are provided with outstanding shielding angle 2, and upper and lower surface and the side of each shielding angle 2 all protrude from port one, can shield when light supply apparatus falls or be collided to light source port.The front of housing is also provided with liquid crystal display screen 3 and multiple button 4.Wherein, power supply, control and protective circuit, laser module and path-splitting device are all arranged in housing, to play the protective effect to internal circuit.
Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection range of the present utility model.
Claims (5)
1. a light supply apparatus, is characterized in that, comprising:
Housing;
Be arranged in housing, the control be connected with power supply and protective circuit;
Be arranged in housing, with the laser assembly controlled and protective circuit is connected;
Be arranged in housing, the optical branching device be connected with described laser assembly, described optical branching device has the output port of an input port and N number of same light power output, and wherein, N is 2
m, M is positive integer; The laser that described laser assembly exports is assigned to N number of port by described optical branching device.
2. light supply apparatus as claimed in claim 1, it is characterized in that, each described output port is all connected with an adapter.
3. light supply apparatus as claimed in claim 2, it is characterized in that, described housing is cuboid or the square bodily form, and the relative two sides of described housing are distributed with the described output port of a row respectively.
4. light supply apparatus as claimed in claim 3, it is characterized in that, the two ends of often arranging described output port all arrange a shielding angle, and upper and lower surface and the side of each described shielding angle all protrude from described port.
5. light supply apparatus as claimed in claim 1, it is characterized in that, described housing upper surface arranges multiple function button and/or a display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007013.1U CN204362050U (en) | 2015-01-06 | 2015-01-06 | A kind of light supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007013.1U CN204362050U (en) | 2015-01-06 | 2015-01-06 | A kind of light supply apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204362050U true CN204362050U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007013.1U Active CN204362050U (en) | 2015-01-06 | 2015-01-06 | A kind of light supply apparatus |
Country Status (1)
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|---|---|
| CN (1) | CN204362050U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356936A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
| CN105356937A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
| CN111049577A (en) * | 2019-11-28 | 2020-04-21 | 国网山东省电力公司宁阳县供电公司 | Special light source equipment for optical cable attenuation test |
| CN112039584A (en) * | 2020-08-07 | 2020-12-04 | 中捷通信有限公司 | Batch detection device and method for fiber-to-the-home links |
-
2015
- 2015-01-06 CN CN201520007013.1U patent/CN204362050U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356936A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
| CN105356937A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
| CN111049577A (en) * | 2019-11-28 | 2020-04-21 | 国网山东省电力公司宁阳县供电公司 | Special light source equipment for optical cable attenuation test |
| CN112039584A (en) * | 2020-08-07 | 2020-12-04 | 中捷通信有限公司 | Batch detection device and method for fiber-to-the-home links |
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