CN107809318A

CN107809318A - A kind of method to equipment increase POE functions

Info

Publication number: CN107809318A
Application number: CN201711184677.5A
Authority: CN
Inventors: 姚欣; 徐巍; 徐捷; 刘强强; 孙普
Original assignee: China Telecom Corp Ltd Yangzhou Branch
Current assignee: China Telecom Corp Ltd Yangzhou Branch
Priority date: 2017-11-23
Filing date: 2017-11-23
Publication date: 2018-03-16
Anticipated expiration: 2037-11-23
Also published as: CN107809318B

Abstract

The invention discloses a kind of method to equipment increase POE functions, belong to power electronic equipment technical field.A kind of method to equipment increase POE functions, transformed by circuitry and increase external connection module, the electronic equipment of original no POE functions is possessed POE function of supplying power, and in the case where not increasing POE interchangers, do not change network structure, realize the POE power supply connections of two equipment.The present invention need not change the equipment of no POE functions, without increasing POE interchangers, save equipment investment；Do not change legacy network structure, realize the fast construction of network function.

Description

A kind of method to equipment increase POE functions

Technical field

The present invention relates to power electronic equipment technology, and in particular to a kind of method to equipment increase POE functions.

Background technology

POE (Power Over Ethernet) refers to not appointing in existing Ethernet Cat.5 wirings architecture In the case that what is changed, for some IP-based terminal (such as IP telephone machine, wireless local network connecting point AP, web cameras Deng) transmission data-signal while, moreover it is possible to the technology of direct current supply is provided for this kind equipment.POE technologies can ensure existing knot Ensure the normal operation of existing network while structureization wiring is safe, reduce cost to greatest extent.

Five class netting twines of standard have four pairs of twisted-pair feeders totally 8 pins, but in l0M BASE-T and 100M BASE-T Two pairs therein are only used to transmit and receive data, others are preserved for phone.

If holding RJ-45 connectors against oneself, lock is upward, then from left to right the numbering of each pin is 1 successively To 8.It is as follows according to the purposes of each pin of TIA/EIA568 specifications：

1 output data (+)

2 output datas (-)

3 input datas (+)

4 are left phone use

5 are left phone use

6 input datas (-)

7 are left phone use

8 are left phone use

Therefore it can be used and retain line pair or data wire to being powered for PoE.PoE standards are to be conveyed using the transmission cable of Ethernet Direct current two methods to device definition compatible POE：

1st, mid-span method (Mid-Span) is folded：As shown in figure 1, use the dead pair being not used in Ethernet cable To transmit direct current, applied between general switch and network-termination device, can be supplied by netting twine to network-termination device Electricity, Midspan PSE（Mid-span power supply unit）It is a special power-supply device, is generally put together with interchanger.It is corresponding There are two RJ45 jacks each port, and one is connected to interchanger with short-term, another connection remote equipment.

2nd, longitudinal folded ends bridging method (End-Span)：As shown in Fig. 2 it is the simultaneous transmission on the cored wire used in transmission data Direct current, it, which is transmitted electricity, uses the frequency different from Ethernet data signal.Corresponding Endpoint PSE（End power supply unit） There are Ethernet switch, router, hub or other network switching equipment for supporting POE functions.It is contemplated that End-Span It can be promoted rapidly, this is due to that Ethernet data uses common line pair with transmission of electricity, thus it is independent defeated to eliminate needs setting The industrial siding of electricity, this is especially great for the standard Registered Jack-45 meaning for only having the cable of 4 cores He matching.

Immediate patent application：

（1）POE chargers --- --- 201410439098.0

（2）POE electric supply installations --- --- 201610255926.4

Above patent application is all to possess the power supply of the equipment of POE functions, the equipment for not possessing POE functions can not be allowed to realize POE Power supply, and need to increase POE power supply units, it is possible to change legacy network structure.POE functions can solve at electronic equipment without The problem of condition of power supply, but some electronic equipments do not account for POE functions in production, can not meet onsite application requirement.

The content of the invention

It is an object of the invention to provide a kind of method to equipment increase POE functions, the present invention is not have POE functions originally Electronic equipment increase POE functions, and in the case where not increasing POE interchangers, do not change legacy network structure, realize original There is no the POE power supplies between the electronic equipment of POE functions.

The purpose of the present invention is achieved through the following technical solutions, and a kind of method to equipment increase POE functions, is passed through Circuitry is transformed and increase external connection module, the electronic equipment of original no POE functions is possessed POE function of supplying power, and not Increase POE interchangers, in the case of not changing network structure, realize the POE power supply connections of two equipment.

Preferably, the specific implementation of the increase method is as follows：

（1）Original equipment circuit is transformed, 4,5 pin of original equipment circuit network interface are connected with DC supply input positive pole, by original equipment 7,8 pin of circuit network interface connect with DC supply input negative pole；

（2）The equipment direct current supply parameter checked the electronic equipment direct current supply parameter of condition of power supply and need POE to power, has The electronic equipment direct current supply parameter of condition of power supply includes DC voltage V1, DC current A1, it is necessary to the equipment direct current of POE power supplies Power supply parameter includes DC voltage V2, DC current A2；

（3）Power supply using output DC voltage=V1, output DC current >=(A1+A2*V2/V1) is the electricity for having condition of power supply Sub- equipment power supply；

Such as V2=V1, directly using netting twine connection equipment, realize that POE powers；

Such as V2 ＞ V1, MC34063 chip manufacturing booster circuit modules, input voltage V1, output electricity are used in two equipment rooms Press and connect remote equipment netting twine for V2, input connection power supply unit netting twine, output end, realize that POE powers；

Such as V2 ＜ V1, MC34063 chip manufacturing reduction voltage circuit modules, input voltage V1, output electricity are used in two equipment rooms Press and connect remote equipment netting twine for V2, input connection power supply unit netting twine, output end, realize that POE powers.

Preferably, if length of mesh wire is more than 50 meters, the voltage after transmission is caused to decline larger, can be according to on-the-spot test feelings Condition suitably lifts the output voltage for lifting die block, to compensate sending allowance.

Compared with prior art, the beneficial effects of the invention are as follows：

First, the equipment without changing no POE functions, without increasing POE interchangers, save equipment investment；

Second, do not change legacy network structure, realize the fast construction of network function；

3rd, for realizing specific function, being difficult to the equipment replaced and the environment of network structure can not being changed, there is great reality With value.

Brief description of the drawings

Fig. 1 is the schematic diagram that prior art folds mid-span method；

Fig. 2 is the schematic diagram of prior art longitudinal folded ends bridging method；

Fig. 3 is electronic device circuitry transformation map of the present invention；

Fig. 4 is boost module circuit structure diagram of the present invention；

Fig. 5 is voltage reduction module circuit structure diagram of the present invention.

Embodiment

The present invention is further described with reference to the accompanying drawings and examples.

As in Figure 3-5, the present invention is transformed by circuitry using the principle of POE power supplies and increases external connection module, made Originally the electronic equipment of no POE functions possesses POE function of supplying power, and is not increasing POE interchangers, do not changing network structure In the case of, realize the POE power supply connections of two equipment.Specific implementation is as follows：

1st, original equipment circuit is transformed, the 4 of network interface, 5 pin are connected with DC supply input positive pole, by the 7 of network interface, 8 pin and direct current Power input negative pole connects；

2nd, checking has the electronic equipment direct current supply parameter of condition of power supply（DC voltage V1, DC current A1）With need POE to supply The equipment direct current supply parameter of electricity（DC voltage V2, DC current A2）；

3rd, the use of the power supply for exporting DC voltage=V1, exporting DC current >=(A1+A2*V2/V1) is the electricity that has condition of power supply Sub- equipment power supply；

4th, such as V2=V1, directly using netting twine connection equipment, realize that POE powers；

5th, such as V2 ＞ V1, MC34063 chip manufacturing booster circuit modules, input voltage V1, output are used in two equipment rooms Voltage is V2, input connection power supply unit netting twine, output end connection remote equipment netting twine, realizes that POE powers；

6th, such as V2 ＜ V1, MC34063 chip manufacturing reduction voltage circuit modules, input voltage V1, output are used in two equipment rooms Voltage is V2, input connection power supply unit netting twine, output end connection remote equipment netting twine, realizes that POE powers；

If the 7, length of mesh wire is more than 50 meters, cause the voltage after transmission to decline larger, be able to will be lifted according to site testing data The output voltage of die block is suitably lifted, to compensate sending allowance.

Claims

1. a kind of method to equipment increase POE functions, include the electronic equipment of condition of power supply with needing setting for POE power supplies It is standby, it is characterized in that, the circuitry that transformation has the electronic equipment of condition of power supply and needs POE to power, increase external netting twine, boosting Circuit module or reduction voltage circuit module, there will be condition of power supply by netting twine, booster circuit module or reduction voltage circuit module Electronic equipment is connected with the equipment for needing POE to power, and realization has condition of power supply electronic equipment and needs POE power supply units POE power supply connections.

2. a kind of method to equipment increase POE functions according to claim 1, it is characterized in that, the increase method Specific implementation is as follows：

（1）Transformation has condition of power supply electronic equipment and needs POE power supply unit circuits, will there is condition of power supply electronic equipment and needs 4,5 pin of POE power supply unit circuit network interfaces connect with DC supply input positive pole, will there is condition of power supply electronic equipment and needs 7,8 pin of POE power supply unit circuit network interfaces connect with DC supply input negative pole；

（2）The equipment original power supply checked the electronic equipment original power supply direct current supply parameter of condition of power supply and need POE to power is straight Power supply parameter is flowed, the electronic equipment direct current supply parameter for having condition of power supply includes DC voltage V1, DC current A1, it is necessary to POE The equipment direct current supply parameter of power supply includes DC voltage V2, DC current A2；

Such as V2=V1, directly it is connected with condition of power supply electronic equipment using netting twine and needs POE power supply units, realizes that POE powers；

Such as V2 ＞ V1, booster circuit module, input voltage V1, output voltage V2 are used in two equipment rooms, input connects Power supply unit netting twine is connect, output end connection remote equipment netting twine, realizes that POE powers；

Such as V2 ＜ V1, in two equipment room use reduction voltage circuit modules, input voltage V1, output voltage V2, input End connection power supply unit netting twine, output end connection remote equipment netting twine, realizes that POE powers.

3. a kind of method to equipment increase POE functions according to claim 2, it is characterized in that, if length of mesh wire is big In 50 meters, the output voltage of ascending, descending die block is lifted.

4. a kind of method to equipment increase POE functions according to claim 2, it is characterized in that, the booster circuit mould Block is by MC34063 chip manufacturings.

5. a kind of method to equipment increase POE functions according to claim 2, it is characterized in that, the reduction voltage circuit mould Block is by MC34063 chip manufacturings.