CN102742109A - Remote supply system and remote power supply - Google Patents
Remote supply system and remote power supply Download PDFInfo
- Publication number
- CN102742109A CN102742109A CN2012800004618A CN201280000461A CN102742109A CN 102742109 A CN102742109 A CN 102742109A CN 2012800004618 A CN2012800004618 A CN 2012800004618A CN 201280000461 A CN201280000461 A CN 201280000461A CN 102742109 A CN102742109 A CN 102742109A
- Authority
- CN
- China
- Prior art keywords
- module
- supply
- far end
- self check
- road
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
Abstract
The present invention is applicable to the technical field of remote power supply and provides a remote supply system and a remote power supply. The remote power supply comprises: a replaceable module, for implementing at least one of functions of the remote power supply, the functions comprising a self-check communication function, a fault detection function, a line diagnosis function or a security protection function; and a common module, for implementing general power supply functions in the remote power supply other than the function implemented by the replaceable module. The common module has a general purpose interface, is connected to the replaceable module through the general purpose interface, and can be physically disconnected from the replaceable module through the general purpose interface. Through the present invention, the replaceable module can be customized according to different power supply standards and different manufactures, and the customization cost is lower than that in the prior art; the common module can be integrated in a load device or an outdoor integral device independent of the load device, so the number of configured machines of the device is not increased, thereby bringing convenience to product management and customer spare part preparation and facilitating product popularization and application.
Description
Technical field
The invention belongs to the Remote Power Supply technical field, relate in particular to a kind of remote power feeding system and far end supply.
Background technology
(Fiber To The x, development FTTx) are advanced copper with the light of optical fiber Alloy instead of Copper cable and are moved back strategy and become a kind of trend in the world, and it provides the high bandwidth access through the distance that shortens copper cable between local side apparatus and the user along with light inserts.Advance copper at light and move back under the strategy, (Digital Subscriber Line Access Multiplexer, DSLAM) etc. the trend that lays of broadband access device is more and more near the user such as digital subscriber line access multiplex.This kind lays mode when promoting line bandwidth; Also make broadband access equipment produce some new characteristics; Comprise the broadband access equipment miniaturization, quantity is many, distribution is wide, it is complicated that scene is installed; These characteristics make the power taking scene of broadband access equipment become increasingly complex, even become the critical bottleneck that broadband access equipment is disposed.
Usually, adopt remote power feeding system to solve light and advance the problem that copper moves back broadband access equipment power taking difficulty under the strategy.This remote power feeding system is utilized light to advance copper and is moved back the idle copper cable twisted-pair feeder that occurs in the process, realizes the remote transmission-receiving function of electric energy, shows the framework of the remote power feeding system that prior art provides like Fig. 1.Local supply with machine room output-after the 48V direct current is modulated to the high voltage direct current of isolating that suspends over the ground, high voltage direct current is delivered to far end supply at a distance through the copper cable twisted-pair feeder; Far end supply supplies corresponding load equipment to use after this high voltage direct current is protected isolation and step-down.
The remote power feeding system that the IEC60950-21 standard provides prior art has defined two kinds of standard systems: RFT-C standard and RFT-V standard.Wherein, RFT-V standard is mainly used in north America region, its voltage-limited, and electric current can be bigger; The RFT-C standard is mainly used in European Region; Its current limited, voltage can be than higher; Before power supply, can start local supply and communicate by letter with the self check between the far end supply, the self check communication protocol of different manufacturers is incompatible; For example, the local supply of BPS producer can not be realized communicating by letter with the far end supply of Mitra producer.
Therefore, the remote power feeding system that prior art provides needs the customization far end supply when concrete the realization, and the far end supply of customization is integrated in the outdoor integrated equipment that is independent of load equipment, makes this integration apparatus directly possess energy supply power far away.Under this kind customization mode, the far end supply of RFT-V standard has good versatility, is easy to customization; And the far end supply of RFT-C standard is because self check communication protocol is that producer is privately owned; To different manufacturers, the far end supply that needs customization respectively to have different self check communication protocols, the customization cost is high; And customization respectively makes that the complete machine number of configured of outdoor integrated equipment is bigger because far end supply needs according to the difference of manufacturer, is unfavorable for normalization and client's spare part of product.
Summary of the invention
The object of the present invention is to provide a kind of far end supply of remote power feeding system; The remote power feeding system that being intended to solve prior art provides is that the far end supply that customizes is integrated in the outdoor integrated equipment; The customization cost is high and make that outdoor integrated equipment complete machine number of configured is big, is unfavorable for the problem of product normalization and client's spare part.
The present invention is achieved in that a kind of far end supply of remote power feeding system, and said far end supply comprises:
Replaceable module is used to realize the function that there are differences between each manufacturer's far end supply; And
One connects the public module of said replaceable module, is used for realizing other function the function that far end supply there are differences between said each manufacturer.
Another object of the present invention is to, a kind of remote power feeding system also is provided, comprise a local supply and a far end supply that is electrically connected with said local supply, said far end supply is the far end supply of aforesaid remote power feeding system.
Because the far end supply of remote power feeding system provided by the invention is to be detachable and interchangeable replaceable module with the part that possibly there are differences between each manufacturer is abstract; It can perhaps customize according to the difference of manufacturer according to the difference of power supply system; And combine public module 12 to accomplish the functions of far end supplies jointly; Customization cost relative prior art is low, and public module can be integrated in load equipment or be independent of in the outdoor integrated equipment of load equipment, and can not increase the complete machine number of configured of equipment; Be convenient to management and client's spare part of product, be beneficial to the popularization and the use of product.
Description of drawings
Fig. 1 is the Organization Chart of the remote power feeding system that provides of prior art;
Fig. 2 is the structure chart of the far end supply of remote power feeding system provided by the invention;
Fig. 3 is in the first embodiment of the invention, a kind of structure chart of the replaceable module of Fig. 2 and public module;
Fig. 4 is in the first embodiment of the invention, the another kind of structure chart of the replaceable module of Fig. 2 and public module;
Fig. 5 is in the second embodiment of the invention, a kind of structure chart of the replaceable module of Fig. 2 and public module;
Fig. 6 is in the second embodiment of the invention, the another kind of structure chart of the replaceable module of Fig. 2 and public module;
Fig. 7 is in the second embodiment of the invention, another structure chart of the replaceable module of Fig. 2 and public module;
Fig. 8 is in the second embodiment of the invention, another structure chart of the replaceable module of Fig. 2 and public module.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
To the problem of the existence of prior art, the far end supply of the remote power feeding system that the embodiment of the invention provides be with the part that possibly there are differences between each manufacturer abstract be a replaceable module, and with other part abstract be a public module.
Fig. 2 shows the structure of the far end supply 1 of the remote power feeding system that present embodiment provides, and for the ease of explanation, only shows the part relevant with present embodiment.
Present embodiment provides far end supply 1 to comprise: replaceable module 11; Be used to realize at least a function of remote power supply; This function generally is the function that there are differences between the different far end supplies, for example self check communication function, fault detection capability, line diagnosis function, safety protection function etc.; And public module 12; Be used for realizing other the power supply general utility functions of far end supply except that the function that replaceable module 11 is realized; Has general-purpose interface on the said public module 12; Connect said replaceable module 11 through said interface, and also can be through the physical connection of said interface disconnection with said replaceable module 11.Further, after the physical connection of breaking off public module 12 and said replaceable module 11, can remove said replaceable module 11, the replaceable module that has other functions in the replacement then.Wherein, The function that there are differences between the different far end supplies can be the far end supply formulated of different vendor with corresponding local supply between specific self check communication function or other different implementation different functions because of manufacturer, for example: fault detection capability, line diagnosis function, safety protection function etc.; Other general utility functions the function that between each manufacturer, there are differences comprises fundamental voltage control, Current Control or power output etc.
Owing to be to be detachable and interchangeable replaceable module 11 with the part that possibly there are differences between each manufacturer is abstract; It can perhaps customize according to the difference of manufacturer according to the difference of power supply system; And combine public module 12 to accomplish the functions of far end supplies jointly; Customization cost relative prior art is low, and public module 12 can be integrated in load equipment or be independent of in the outdoor integrated equipment of load equipment, and can not increase the complete machine number of configured of equipment; Be convenient to management and client's spare part of product, be beneficial to the popularization and the use of product.
In the present embodiment, the structure of replaceable module 11 and public module 12 can be according to RFT-V standard and/or RFT-C standard and is different.Particularly; When the function that there are differences between each manufacturer's far end supply is the self check communication function between far end supply and the corresponding local supply; Under the RFT-C standard, show in the first embodiment of the invention replaceable module 11 of Fig. 2 and a kind of structure of public module 12 like Fig. 3; For the ease of explanation, only show the part relevant with first embodiment of the invention.
At this moment, replaceable module 11 can comprise: self check communication module 111 is used to realize the self check between far end supply and the corresponding local supply, and after self check is passed through, receives the dc power signal that corresponding local supply sends through a plurality of power cables.Public module 12 can comprise: first closes road module 121, exports after being used for the dc power signal that self check communication module 111 receives closed the road; Dc-dc conversion module 122, be used for first close road module 121 output dc power signal convert the required dc power signal of respective load equipment to after, export to corresponding load equipment.
Wherein, power cable can be optoelectronic composite cable or existing copper cable twisted-pair feeder.When power cable was existing copper cable twisted-pair feeder, the logarithm of copper cable twisted-pair feeder depended on the factors such as transmission line footpath between transmission range, far end supply and the local supply between the required power of far end supply, far end supply and the local supply.Before concrete configuration, need to adjust demand pairs and whether can meet the demands, and, need to increase the Redundancy Design of power cable in order to improve system reliability according to actual scene.
In addition; In this kind of first embodiment of the invention structure; Replaceable module 11 can also comprise: the first filtering lightning-protection module (not shown) that connects self check communication module 111; Be used under the RFT-C standard, the dc power signal that self check communication module 111 is received carries out exporting after the Filtering Processing.At this moment, first to close road module 121 be to export after dc power signal with first filtering lightning-protection module output closes the road.
Under the RFT-V standard, the far end supply of remote power feeding system can not comprise replaceable module 11, and only need carry out simple line, gets final product to set up first electric pathway that close between road module 121 and the corresponding local supply.
Far end supply in the remote power feeding system that first embodiment of the invention provides is applied to the RFT-C standard simultaneously with under the situation of RFT-V standard; Fig. 4 shows in the first embodiment of the invention; The replaceable module 11 of Fig. 2 and the another kind of structure of public module 12; For the ease of explanation, only show the part relevant with first embodiment of the invention.
At this moment, with shown in Figure 3 different, replaceable module 11 can also comprise: handover module 112, be used for difference according to power supply system, and close the electric pathway between 121 foundation of road module and the corresponding local supply and switch self check communication module 111 or first.Particularly, when being applied to RFT-C standard following time, handover module 112 carries out circuit and switches to be communicated to self check communication module 111, sets up the electric pathway between self check communication module 111 and the corresponding local supply; When being applied to RFT-V standard following time, handover module 112 carries out circuit and switches and close road module 121 to be communicated to first, sets up first electric pathway that close between road module 121 and the corresponding local supply.
Likewise; In this kind of first embodiment of the invention structure; Replaceable module 11 can also comprise: the first filtering lightning-protection module (not shown) that connects self check communication module 111; Be used under the RFT-C standard, the dc power signal that self check communication module 111 is received carries out exporting to first after the Filtering Processing and closes road module 121; And/or place handover module 112 and first to close to be connected between the road module 121, in order the second filtering lightning-protection module (not shown) and an isolation module (not shown) of handover module 112.Wherein, the second filtering lightning-protection module is used under the RFT-V standard, and corresponding local supply is carried out exporting after the Filtering Processing through the dc power signal that handover module 112 sends; Isolation module is exported to first and is closed road module 121 after being used for the interference signal of the dc power signal of second filtering lightning-protection module output isolated.
Fig. 5 shows in the second embodiment of the invention, and the replaceable module 11 of Fig. 2 and a kind of structure of public module 12 for the ease of explanation, only show the part relevant with second embodiment of the invention.
Particularly; Under the RFT-C standard, replaceable module 11 can comprise: self check communication module 111 is used to realize the self check between far end supply and the corresponding local supply; And after self check is passed through, receive the dc power signal that corresponding local supply sends through a plurality of power cables; Second closes road module 113, exports after being used for the dc power signal that self check communication module 111 receives closed the road.Public module 12 can comprise: dc-dc conversion module 121, be used for second close road module 113 output dc power signal convert the required dc power signal of respective load equipment to after, export to corresponding load equipment.
Identical with first embodiment of the invention, power cable can be optoelectronic composite cable or existing copper cable twisted-pair feeder.When power cable was existing copper cable twisted-pair feeder, the logarithm of copper cable twisted-pair feeder depended on the factors such as transmission line footpath between transmission range, far end supply and the local supply between the required power of far end supply, far end supply and the local supply.Before concrete configuration, need to adjust demand pairs and whether can meet the demands, and, need to increase the Redundancy Design of power cable in order to improve system reliability according to actual scene.
And it is identical with first embodiment of the invention; In this kind of second embodiment of the invention structure; Replaceable module 11 can also comprise: the first filtering lightning-protection module (not shown) that connects self check communication module 111; Be used under the RFT-C standard, the dc power signal that self check communication module 111 is received carries out exporting to second after the Filtering Processing and closes road module 113.
Certainly; In actual application; Under the RFT-C standard, after also can be earlier closing dc power signal that module 113 pairs of local supplies in road send and close the road by second, the self check that realizes between far end supplies and the corresponding local supply by self check communication module 111 again; And after self check is passed through, will close the dc power signal output behind the road by self check communication module 111.Show in the second embodiment of the invention like Fig. 6, at this moment the another kind of structure of the replaceable module 11 of Fig. 2 and public module 12.
Far end supply in the remote power feeding system that second embodiment of the invention provides is applied to the RFT-C standard simultaneously with under the situation of RFT-C standard; Fig. 7 shows in the second embodiment of the invention; The replaceable module 11 of Fig. 2 and another structure of public module 12; For the ease of explanation, only show the part relevant with second embodiment of the invention.
At this moment, with shown in Figure 5 different, replaceable module 11 can also comprise: handover module 112, be used for difference according to power supply system, and close the electric pathway between 113 foundation of road module and the corresponding local supply and switch self check communication module 111 or second.When being applied to RFT-C standard following time, switch that self check communication module 111 is set up and corresponding local supply between electric pathway; When being applied to RFT-V standard following time, switch second close that road module 113 is set up and corresponding local supply between electric pathway.
Likewise; In this kind of second embodiment of the invention structure; Replaceable module 11 can also comprise: the first filtering lightning-protection module (not shown) that connects self check communication module 111; Be used under the RFT-C standard, the dc power signal that self check communication module 111 is received carries out exporting to second after the Filtering Processing and closes road module 113; And/or be connected handover module 112 and second in order and close the second filtering lightning-protection module (not shown) and an isolation module (not shown) between the road module 113.Wherein, the second filtering lightning-protection module is used under the RFT-V standard, and corresponding local supply is carried out exporting after the Filtering Processing through the dc power signal that handover module 112 sends; Isolation module is exported to second and is closed road module 113 after being used for the interference signal of the dc power signal of second filtering lightning-protection module output isolated.
Likewise; In actual application; Under the RFT-C standard; After also can be earlier closing dc power signal that module 113 pairs of local supplies in road send and close the road by second, handover module 112 be again according to the difference of standard, switches the dc power signal that self check communication module 111 realizes that far end supplies and the self check between the corresponding local supply maybe will be closed behind the road and exports.Show in the second embodiment of the invention like Fig. 8, at this moment another structure of the replaceable module 11 of Fig. 2 and public module 12.
The embodiment of the invention also provides a kind of remote power feeding system, comprises a local supply, and the far end supply that is electrically connected with this local supply, and this far end supply specifically is the far end supply of aforesaid remote power feeding system.
Because the far end supply of the remote power feeding system that provides of the embodiment of the invention is to be detachable and interchangeable replaceable module 11 with the part that possibly there are differences between each manufacturer is abstract; It can perhaps customize according to the difference of manufacturer according to the difference of power supply system; And combine public module 12 to accomplish the functions of far end supplies jointly; Customization cost relative prior art is low, and public module 12 can be integrated in load equipment or be independent of in the outdoor integrated equipment of load equipment, and can not increase the complete machine number of configured of equipment; Be convenient to management and client's spare part of product, be beneficial to the popularization and the use of product.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the far end supply of a remote power feeding system is characterized in that, said far end supply comprises:
Replaceable module is used to realize at least a function of remote power supply, and said function comprises self check communication function, fault detection capability, line diagnosis function or safety protection function; And
Public module; Be used for realizing other the power supply general utility functions of far end supply except that the function that said replaceable module is realized; Has general-purpose interface on the wherein said public module; Connect said replaceable module through said general-purpose interface, and also can be through the physical connection of said general-purpose interface disconnection with said replaceable module.
2. the far end supply of remote power feeding system as claimed in claim 1; It is characterized in that; The function that there are differences between said each manufacturer's far end supply is the self check communication function, and said replaceable module comprises: the self check communication module is used to realize the self check between far end supply and the corresponding local supply; And after self check is passed through, receive the dc power signal that said corresponding local supply sends through a plurality of power cables;
Said public module comprises: first closes the road module, exports after being used for the said dc power signal that said self check communication module receives closed the road; The dc-dc conversion module, be used for said first close the output of road module dc power signal convert the required dc power signal of respective load equipment to after, export to corresponding load equipment.
3. the far end supply of remote power feeding system as claimed in claim 2 is characterized in that, said replaceable module also comprises:
Connect the first filtering lightning-protection module of said self check communication module, be used under the RFT-C standard, the dc power signal that said self check communication module is received carries out exporting to said first after the Filtering Processing and closes the road module.
4. the far end supply of remote power feeding system as claimed in claim 2 is characterized in that, said replaceable module also comprises:
Handover module is used for the difference according to power supply system, closes the electric pathway between road module foundation and the said corresponding local supply and switch said self check communication module or said first.
5. the far end supply of remote power feeding system as claimed in claim 4 is characterized in that, said replaceable module also comprises:
Connect the first filtering lightning-protection module of said self check communication module, be used under the RFT-C standard, the dc power signal that said self check communication module is received carries out exporting to said first after the Filtering Processing and closes the road module; And/or
Place said handover module and said first to close the second filtering lightning-protection module and an isolation module that is connected said handover module between the module of road, in order; The said second filtering lightning-protection module is used under the RFT-V standard; Corresponding local supply is carried out exporting after the Filtering Processing through the dc power signal that said handover module sends; Said isolation module is exported to said first and is closed the road module after being used for the interference signal of the dc power signal of said second filtering lightning-protection module output isolated.
6. the far end supply of remote power feeding system as claimed in claim 1; It is characterized in that; Said replaceable module comprises: the self check communication module; Be used to realize the self check between far end supply and the corresponding local supply, and after self check is passed through, receive the dc power signal that corresponding local supply sends through a plurality of power cables; Second closes the road module, exports after being used for the said dc power signal that said self check communication module receives closed the road;
Said public module comprises: the dc-dc conversion module, be used for said second close the output of road module dc power signal convert the required dc power signal of respective load equipment to after, export to corresponding load equipment.
7. the far end supply of remote power feeding system as claimed in claim 6 is characterized in that, said replaceable module also comprises:
Handover module is used for the difference according to power supply system, switches said self check communication module or said second and closes the electric pathway between road module foundation and the said corresponding local supply.
8. the far end supply of remote power feeding system as claimed in claim 6 is characterized in that, said replaceable module also comprises:
The first filtering lightning-protection module that connects said self check communication module.
9. like the far end supply of each described remote power feeding system of claim 2 to 8, it is characterized in that said power cable is optoelectronic composite cable or copper cable twisted-pair feeder.
10. a remote power feeding system comprises a local supply and a far end supply that is electrically connected with said local supply, it is characterized in that said far end supply is the far end supply like each described remote power feeding system of claim 1 to 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/071834 WO2012095055A2 (en) | 2012-03-01 | 2012-03-01 | Remote supply system and remote power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102742109A true CN102742109A (en) | 2012-10-17 |
| CN102742109B CN102742109B (en) | 2014-03-26 |
Family
ID=46507502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280000461.8A Active CN102742109B (en) | 2012-03-01 | 2012-03-01 | Remote supply system and remote power supply |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102742109B (en) |
| WO (1) | WO2012095055A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885170A (en) * | 2016-09-30 | 2018-04-06 | 珠海优特电力科技股份有限公司 | The method of safety in production control device, system and management and control of keeping the safety in production |
| CN115800549A (en) * | 2022-12-26 | 2023-03-14 | 中国铁塔股份有限公司 | Remote power supply device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567816A (en) * | 2003-06-26 | 2005-01-19 | 烽火通信科技股份有限公司 | A remote power feeding equipment having remote control function |
| US20050121979A1 (en) * | 2003-12-09 | 2005-06-09 | Matsushita Electric Industrial Co., Ltd. | Direct-current uninterruptible power source unit |
| CN1859126A (en) * | 2005-04-30 | 2006-11-08 | 华为技术有限公司 | Remote power supply system and method |
| JP2009207328A (en) * | 2008-02-29 | 2009-09-10 | Daikin Ind Ltd | Power device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6438693B1 (en) * | 1997-09-30 | 2002-08-20 | Sony Corporation | Modular broadcast receiver system and memo |
| CN100596073C (en) * | 2005-03-31 | 2010-03-24 | 华为技术有限公司 | Remote power supply system in communication system |
| CN100486287C (en) * | 2005-04-30 | 2009-05-06 | 华为技术有限公司 | Remote power supply system |
| CN201332266Y (en) * | 2008-12-30 | 2009-10-21 | 周静 | Communication base station remote power supply equipment |
| CN202150741U (en) * | 2011-08-15 | 2012-02-22 | 山东兆宇电子技术有限公司 | Intelligent direct current remote power supply system |
-
2012
- 2012-03-01 WO PCT/CN2012/071834 patent/WO2012095055A2/en active Application Filing
- 2012-03-01 CN CN201280000461.8A patent/CN102742109B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567816A (en) * | 2003-06-26 | 2005-01-19 | 烽火通信科技股份有限公司 | A remote power feeding equipment having remote control function |
| US20050121979A1 (en) * | 2003-12-09 | 2005-06-09 | Matsushita Electric Industrial Co., Ltd. | Direct-current uninterruptible power source unit |
| CN1859126A (en) * | 2005-04-30 | 2006-11-08 | 华为技术有限公司 | Remote power supply system and method |
| JP2009207328A (en) * | 2008-02-29 | 2009-09-10 | Daikin Ind Ltd | Power device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885170A (en) * | 2016-09-30 | 2018-04-06 | 珠海优特电力科技股份有限公司 | The method of safety in production control device, system and management and control of keeping the safety in production |
| CN115800549A (en) * | 2022-12-26 | 2023-03-14 | 中国铁塔股份有限公司 | Remote power supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102742109B (en) | 2014-03-26 |
| WO2012095055A3 (en) | 2013-02-21 |
| WO2012095055A2 (en) | 2012-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102183928B (en) | Method, device and intelligent household appliance controller for controlling running mode of household appliance | |
| EP3507940B1 (en) | A system for providing dc power using a communication network | |
| CN102025510A (en) | Ethernet power supply unit and network | |
| CN101782613A (en) | System, device and method for realizing Ethernet power supply function testing | |
| CN102761422A (en) | Cascaded Ethernet power supply system and Ethernet power supply method thereof | |
| CN102075331B (en) | Ethernet power supply end equipment as well as system and method thereof for realizing power supply | |
| CN102801535B (en) | Power over Ethernet transmission system | |
| CN104753776A (en) | Service isolation handling method, device, system, DPU (distributed processing unit) and network adapter | |
| CN105871614A (en) | Protection method and device of board cards in communication device | |
| CN102387524B (en) | Indoor distributed monitoring system for WLAN (Wireless Local Area Network) | |
| CN205754408U (en) | A kind of switch with forward and reverse function of supplying power | |
| US20160150302A1 (en) | Mini-optical network terminal (ont) | |
| CN102742109B (en) | Remote supply system and remote power supply | |
| EP3163794B1 (en) | Power supply method, apparatus, and system | |
| CN105978700A (en) | Multipath backward feeding intelligent power supply management method and system | |
| CN107360005A (en) | A kind of receiving end equipment and by method for electrically | |
| CN202817700U (en) | Power receiving conversion circuit based on power provided by ethernet | |
| CN103403563A (en) | Reverse power supply circuit test system and device | |
| CN108173245B (en) | The implementation method of combined floodgate is thought highly of in open circuit in a kind of intelligent substation | |
| CN100486287C (en) | Remote power supply system | |
| CN209767236U (en) | Short lead protection device | |
| CN202906930U (en) | POE power supply system based on multi-network distribution of cat5 cables | |
| CN202818333U (en) | POE switch power supply adapter possessing voltage detecting function | |
| CN104734925A (en) | Wall surface type information integrated panel | |
| CN108964928B (en) | Wireless MOCA terminal equipment, feed equipment and self-adaptive feed method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |