CN103167204A - Long-distance power supply system - Google Patents
Long-distance power supply system Download PDFInfo
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- CN103167204A CN103167204A CN2011104122305A CN201110412230A CN103167204A CN 103167204 A CN103167204 A CN 103167204A CN 2011104122305 A CN2011104122305 A CN 2011104122305A CN 201110412230 A CN201110412230 A CN 201110412230A CN 103167204 A CN103167204 A CN 103167204A
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Abstract
The invention relates to a long-distance power supply system which comprises an alternating current-direct current (ACDC) power supply module, a digital distribution frame, a direct current-direct current (DCDC) power supply module and a plurality of electric devices. 220V AC obtained from a generator room is converted to +-140V DC by the ACDC power supply module, and the DC is output in a symmetrical mode. The digital distribution frame is used for transmitting the +-140V DC, and the DCDC power supply module is used for converting the +-140V DC into +-12V DC or +-5V DC so as to be used by the electric devices. Two pairs of double-glue-wires are added to the long-distance multipoint remote control device so that transmission requirements of a personal handy-phone system (PHS) long-distance power source in 'China Telecom PHS base station DC long-distance power supply system technical specification' are met, and improving difficulty of an original network is reduced. Great convenience is brought for China Telecom to develop value added services on a public switched telephone network (PSTN) telephone line.
Description
Technical field
The present invention relates to a kind of power supply system for communications, particularly a kind of remote power feeding origin system that reduces the telecommunications operation costs.
Background technology
Constantly universal with radio communication, telecommunications company's set continuous atrophy of telephone booth business on avenue, general phone service has been in lossing state.Telecommunications company is numerous and confused to be considered to offer value-added service on original telephone booth.CHINAUNICOM of some provinces and cities is the special Media Center of setting up just, realize the information issuing service on telephone booth.But powerup issue (ditching everywhere) becomes a bottleneck that hinders this business development.Introduce a kind of phonebooth before and far supply the illuminator (patent No.: 200820132942.5), solved the difficult problem of telephone booth power supply with public switched telephone network (PSTN) line powering mode, obtained good market achievement.
Above-mentioned technology is mainly based on PHS Remote Power Supply technology.But along with the Delisted of PHS, its corresponding system supply becomes a large problem gradually.And according to " China Telecom's PHS base station direct-current remote feeding power system technical specification " requirement, the equipment of access digital distribution frame (DDF) must be changed and meet the Security Unit that Remote Power Supply requires, and the Security Unit that uses on the DDF frame of telecommunication bureau is of a great variety, be difficult to unified, could access suitable Security Unit after must transforming, otherwise will cause the problems such as DDF warning, bring very burden to construction.And because needs use machine room-48VDc Power supply, require the capacity of machine room primary power source significantly to increase, increased the telecom operation cost.
This shows, above-mentioned existing remote power feeding origin system obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, completed by development but have no for a long time applicable design always, and common product does not have appropriate structure to address the above problem, this is obviously the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of remote power feeding origin system, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The object of the invention is to, a kind of remote power feeding origin system is provided, set up a pair of twisted-pair cable, satisfied the transmission demand of PHS Remote Power Supply in " China Telecom's PHS base station direct-current remote feeding power system technical specification ", reduced again the transformation difficulty of legacy network.More be conducive to telecommunications company's developing value-added services on the pstn telephone circuit.
The object of the invention to solve the technical problems is to adopt following technical scheme to realize.According to a kind of remote power feeding origin system that the present invention proposes, it comprises: the ACDC power module will be converted to from the 220VAC alternating current that machine room obtains ± the symmetrical output of 140VDC direct current; Digital distribution frame, it is connected in described ACDC power module by 2 pairs of twisted-pair cable, is used for transmission ± 140VDC direct current; The DCDC power module, it is connected in described digital distribution frame by 2 pairs of twisted-pair cable, described DCDC power module general ± 140VDC direct current is converted to ± the 12VDC direct current or ± the 5VDC direct current; And a plurality of power consumption equipments, it is connected in described DCDC power module by 2N to twisted-pair cable, described power consumption equipment reception ± 12VDC direct current or ± the 5VDC direct current.
Purpose of the present invention and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid remote power feeding origin system, wherein said N are 1,2 or 3.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, remote power feeding origin system of the present invention has following advantages and beneficial effect at least: in the present invention, owing to having set up a pair of twisted-pair cable, satisfy the transmission demand of PHS Remote Power Supply in " China Telecom's PHS base station direct-current remote feeding power system technical specification ", reduced again the transformation difficulty of legacy network.More be conducive to telecommunications company's developing value-added services on the pstn telephone circuit.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of remote power feeding origin system of the present invention.
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of remote power feeding origin system, structure, feature and effect thereof to foundation the present invention proposes are described in detail as follows.
See also shown in Figure 1ly, the structural representation of remote power feeding origin system of the present invention, remote power feeding origin system comprise ACDC power module 1, digital distribution frame 2, DCDC power module 3 and a plurality of power consumption equipment 4.
Above-mentioned ACDC power module 1 obtains civil power from machine room, namely obtains the 220VAC alternating current, and is converted into ± the symmetrical output of 140VDC direct current; Digital distribution frame 2, it is connected in ACDC power module 1 by 2 pairs of twisted-pair cable, is used for transmission ± 140VDC direct current; DCDC power module 3, it is connected in digital distribution frame 2 by 2 pairs of twisted-pair cable, DCDC power module 3 general ± 140VDC direct currents are converted to ± the 12VDC direct current or ± the 5VDC direct current; A plurality of power consumption equipments 4, its by 2N (N=1,2,3 ...) twisted-pair cable is connected in DCDC power module 3, receive by 3 outputs of DCDC power module ± the 12VDC direct current or ± the 5VDC direct current.
The present invention gets civil power from machine room when practical application, through ACDC power module 1 be transformed into ± distribute to two pairs of twisted-pair feeders of each power consumption equipment 4 (being the far-end telephone booth) after the 140VDC direct current, through digital distribution frame 2 to power consumption equipment 4 power supplies.On the far-end telephone booth, first use with offering power consumption equipment 4 work.DCDC power module 3 general ± 140VDC powered by direct current are converted to the required power supply of power consumption equipment 4, when far-end telephone booth power consumption equipment power consumption demand is larger, can increase 2N (N=1,2,3....) twisted-pair feeder is realized.
Return as can be known, remote power feeding origin system of the present invention adopts civil power 220VAC AC-powered, symmetrical direct current output by ± 140VDC (original Remote Power Supply take be-the 48VAc power supply ,+280VDc output), China Telecom's PHS base station direct-current remote feeding power system technical specification is satisfied in this output " in the transmission demand of PHS Remote Power Supply, reduced again the transformation difficulty of legacy network.More be conducive to telecommunications company's developing value-added services on the pstn telephone circuit; also satisfy the full terms such as suspension over the ground that " China Telecom's PHS base station direct-current remote feeding power system technical specification " require, overvoltage, overcurrent protection, and will original a pair of twisted-pair feeder power supply change two pairs of twisted-pair feeders into and power.On the one hand: after adopting this mode, the supply power voltage on the every pair of twisted-pair feeder is reduced to 140V, lower than existing security unit alarming thresholding, does not need again digital line to be joined the frame security module and transforms, and has alleviated difficulty of construction.On the other hand, adopt 2 pairs of twisted-pair feeder power supplies, do not increase line loss.
the above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art are not within breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (2)
1. remote power feeding origin system is characterized in that it comprises:
The ACDC power module will be converted to from the 220VAC alternating current that machine room obtains ± the symmetrical output of 140VDC direct current;
Digital distribution frame, it is connected in described ACDC power module by 2 pairs of twisted-pair cable, is used for transmission ± 140VDC direct current;
The DCDC power module, it is connected in described digital distribution frame by 2 pairs of twisted-pair cable, described DCDC power module general ± 140VDC direct current is converted to ± the 12VDC direct current or ± the 5VDC direct current; And
A plurality of power consumption equipments, it is connected in described DCDC power module by 2N to twisted-pair cable, described power consumption equipment reception ± 12VDC direct current or ± the 5VDC direct current.
2. remote power feeding origin system according to claim 1, is characterized in that wherein said N is 1,2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104122305A CN103167204A (en) | 2011-12-13 | 2011-12-13 | Long-distance power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104122305A CN103167204A (en) | 2011-12-13 | 2011-12-13 | Long-distance power supply system |
Publications (1)
| Publication Number | Publication Date |
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| CN103167204A true CN103167204A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104122305A Pending CN103167204A (en) | 2011-12-13 | 2011-12-13 | Long-distance power supply system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2509796Y (en) * | 2001-09-25 | 2002-09-04 | 福建武夷通信设备厂 | Local telephone radio base station uninterrupted power source |
| CN201066855Y (en) * | 2007-04-06 | 2008-05-28 | 张旭 | Low-voltage remote power supply device for high-speed Ethernet switch |
| US20080122586A1 (en) * | 2005-04-30 | 2008-05-29 | Huawei Technologies Co., Ltd. | System For Line Powering |
| CN101299517A (en) * | 2008-05-27 | 2008-11-05 | 中国移动通信集团广东有限公司韶关分公司 | Centralized remote electric power system |
| CN201328006Y (en) * | 2008-12-17 | 2009-10-14 | 广州大中科技发展有限公司 | Remote DC electronic equipment power supply system |
| CN201509076U (en) * | 2009-09-25 | 2010-06-16 | 佛山市联动科技实业有限公司 | Remote DC power supply system of movable communication power supply |
-
2011
- 2011-12-13 CN CN2011104122305A patent/CN103167204A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2509796Y (en) * | 2001-09-25 | 2002-09-04 | 福建武夷通信设备厂 | Local telephone radio base station uninterrupted power source |
| US20080122586A1 (en) * | 2005-04-30 | 2008-05-29 | Huawei Technologies Co., Ltd. | System For Line Powering |
| CN201066855Y (en) * | 2007-04-06 | 2008-05-28 | 张旭 | Low-voltage remote power supply device for high-speed Ethernet switch |
| CN101299517A (en) * | 2008-05-27 | 2008-11-05 | 中国移动通信集团广东有限公司韶关分公司 | Centralized remote electric power system |
| CN201328006Y (en) * | 2008-12-17 | 2009-10-14 | 广州大中科技发展有限公司 | Remote DC electronic equipment power supply system |
| CN201509076U (en) * | 2009-09-25 | 2010-06-16 | 佛山市联动科技实业有限公司 | Remote DC power supply system of movable communication power supply |
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Application publication date: 20130619 |