CN201975851U - Special DC emergency power supply for radio and television - Google Patents
Special DC emergency power supply for radio and television Download PDFInfo
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- CN201975851U CN201975851U CN2010205545488U CN201020554548U CN201975851U CN 201975851 U CN201975851 U CN 201975851U CN 2010205545488 U CN2010205545488 U CN 2010205545488U CN 201020554548 U CN201020554548 U CN 201020554548U CN 201975851 U CN201975851 U CN 201975851U
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Abstract
The utility model relates to a special DC emergency power supply for radio and television. The special DC emergency power supply comprises an AC power supply circuit for being connected with commercial power, and a DC conversion module connected with a coaxial cable and used for converting the 60V DC supply into different DC voltages, wherein the DC supply output terminal of the DC conversion module is connected with the DC supply input terminal of an OEO (Optical Electrical Optical) unit, an ONU (Optical Network Unit) and other user terminal equipment; and the control input terminal of the DC conversion module is connected with a detection control module for controlling the DC conversion module to output only when the commercial power is cut off. When the special DC emergency power supply is in use, the commercial power is used preferentially once the commercial power is in the normal state, the DC conversion module does not work, and no loss is caused; when the commercial power fails to work, the 60V DC supply of the coaxial cable is immediately used for power supply, so as to generate different DC voltages of 48V/36V/24/12 etc. for supplying power for different terminal equipment; and only if the 60V DC supply of the coaxial cable is not cut off, the OEO, ONU and other user terminal equipment can be continually powered even if the commercial power fails to work for a long period of time.
Description
Technical field
The utility model relates to broadcasting and TV special DC emergency power supply, is primarily aimed at subscriber terminal equipments such as OEO, ONU.
Background technology
When present PON remote equipment (as subscriber terminal equipments such as OEO, ONU) uses,, then can not normally use, thereby bring hidden danger for the reliability and stability of optical transmission if civil power breaks down.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, backup type power source special of being suitable for automatically PON remote equipment (as subscriber terminal equipments such as OEO, ONU) being provided different direct voltages when municipal power failure.
For solving the problems of the technologies described above, the broadcasting and TV special DC emergency power supply that the utility model provides, comprise: the AC power circuit that is used to connect the 220V electric main, the DC conversion modules that is used for the 60V DC power supply of coaxial cable input is converted to different direct voltages that links to each other with coaxial cable, the output of DC conversion modules and PON remote equipment are (as OEO, subscriber terminal equipments such as ONU) dc supply input links to each other, and the control input end of DC conversion modules is connected with and is used for only controlling the detection control module that DC conversion modules is exported different DC power supply when 220V electric main fault.
The technique effect that the utlity model has: when civil power just often, directly the PON remote equipment is preferentially powered by civil power.Detecting control module follows the tracks of and monitors importing two kinds of power supplys simultaneously, to detect civil power normal when detecting control module, detecting control module controls the 60V back-up source, make DC conversion modules be in interruption, when municipal power failure, detect control module and starting the DC power supply conversion module in the time automatically less than 1S, reserve 60V power supply enters operating state, through DC conversion modules 60V voltage is converted into PON remote equipment demand voltage 48V/36V/24V/12V, the output galvanic current is pressed, DC interface to the PON remote equipment continues power supply, even civil power has a power failure for a long time, as long as coaxial cable does not cut off the power supply, just can be to PON remote equipment continued power, when the city power recovery just often, detect control module reality the 60V back-up source monitored, make the DC conversion modules interruption of work, change and the PON remote equipment is powered by civil power.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the structured flowchart of the broadcasting and TV special DC emergency power supply among the embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
As Fig. 1, the broadcasting and TV special DC emergency power supply of present embodiment comprises: the AC power circuit that is used to connect the 220V electric main, the DC conversion modules that is used for the 60V DC power supply of coaxial cable input is converted to different voltages that links to each other with coaxial cable, the dc power output end of DC conversion modules links to each other with the dc supply input of PON remote equipment (as subscriber terminal equipments such as OEO, ONU), and the control input end of DC conversion modules is connected with and is used for the only detection control module in control DC conversion modules output DC source when 220V electric main fault.
The good effect that present embodiment has: when civil power just often, directly the PON remote equipment is preferentially powered by civil power.Detect control module and follow the tracks of and monitor importing two kinds of power supplys simultaneously, to detect civil power normal when detecting control module, detects control module the 60V back-up source is controlled, and DC conversion modules is in interrupt status; When municipal power failure, detect control module and starting the DC power supply conversion module in the time automatically less than 1S, reserve 60V power supply enters operating state, through DC conversion modules 60V voltage is converted into PON remote equipment demand voltage 48V/36V/24V/12V, the output galvanic current is pressed, DC interface to the PON remote equipment continues power supply, even civil power has a power failure for a long time, as long as coaxial cable does not cut off the power supply, just can be to PON remote equipment continued power, when the city power recovery just often, detect control module reality the 60V back-up source monitored, make the DC conversion modules interruption of work, change and the PON remote equipment is powered by civil power.
The PON remote equipment is to be used for optical transmission process is amplified shaping more again to signal a kind of optical transmission device.It can effectively save fiber resource and networking cost, has solved the excessive problem of fiber distance, is extensively applied in the long-distance transmission of various main lines.Its advantage is that volume is little, economic security, installation are simple etc.
The PON remote equipment of present embodiment has following characteristics:
1, the flexible transparent access of multiple rate business: multiple rate business interface is provided, supports business such as Ethernet, PDH, SDH, ATM.
2, relaying type: can carry out wavelength Conversion, mode switch, luminous power shaping and amplification.
But the distance of 3 relay transmission: 30KM, 50KM, 80KM, 100KM, more than the 120KM.
4, support network management function: multiple webmaster mode is provided, based on terminal console carry out local management, based on Telnet Telnet network managing mode.
Obviously, the foregoing description only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.
Claims (1)
1. broadcasting and TV special DC emergency power supply, comprise the AC power circuit that is used to connect the 220V electric main, it is characterized in that also comprising: the DC conversion modules that is used for the 60V DC power supply of coaxial cable input is converted to different direct voltages that links to each other with coaxial cable, the DC conversion modules output links to each other with the dc supply input of OEO, ONU subscriber terminal equipment, and the control input end of DC conversion modules is connected with and is used for the only detection control module of control DC conversion modules output when the 220V electric main disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205545488U CN201975851U (en) | 2010-10-11 | 2010-10-11 | Special DC emergency power supply for radio and television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205545488U CN201975851U (en) | 2010-10-11 | 2010-10-11 | Special DC emergency power supply for radio and television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975851U true CN201975851U (en) | 2011-09-14 |
Family
ID=44580949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205545488U Expired - Fee Related CN201975851U (en) | 2010-10-11 | 2010-10-11 | Special DC emergency power supply for radio and television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103250373A (en) * | 2011-12-05 | 2013-08-14 | 华为技术有限公司 | Method, device and system for remote power supply in coaxial network |
| CN106412723A (en) * | 2016-08-30 | 2017-02-15 | 江苏省邮电规划设计院有限责任公司 | RRU (Radio Remote Unit) intelligent power supply device used in 4G communication system |
-
2010
- 2010-10-11 CN CN2010205545488U patent/CN201975851U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103250373A (en) * | 2011-12-05 | 2013-08-14 | 华为技术有限公司 | Method, device and system for remote power supply in coaxial network |
| CN106412723A (en) * | 2016-08-30 | 2017-02-15 | 江苏省邮电规划设计院有限责任公司 | RRU (Radio Remote Unit) intelligent power supply device used in 4G communication system |
| CN106412723B (en) * | 2016-08-30 | 2019-06-25 | 中通服咨询设计研究院有限公司 | One kind RF processing unit intelligent power supply used in 4G communication system |
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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: 20110914 Termination date: 20131011 |