CN105515787A - Network port and Ethernet device - Google Patents
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- CN105515787A CN105515787A CN201410495843.3A CN201410495843A CN105515787A CN 105515787 A CN105515787 A CN 105515787A CN 201410495843 A CN201410495843 A CN 201410495843A CN 105515787 A CN105515787 A CN 105515787A
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Abstract
A network port comprises a connection port, a PD (Powered Device) unit, a PSE (Power Sourcing Equipment) unit, a control unit and a switching unit. The control unit determines the type of an external Ethernet port connected to the connection port and outputs a determination result signal correspondingly. According to the determination result signal output by the control unit, the switching unit connects the PSE unit with the connection port, or connects the PD unit with the connection port. The invention also provides an Ethernet device. According to the network port and the Ethernet device, functions of PD and PSE are integrated in one port, and the corresponding PSE or PD mode is automatically switched to according to the PSE or PD connected to the port.
Description
Technical field
The present invention relates to a kind of network port, particularly relate to a kind of by PD (PoweredDevice) and the Ethernet device of PSE (PowerSouringEquipment) Function Integration Mechanism in a port.
Background technology
Power over Ethernet (PoweroverEthernet, PoE) system comprises PD and PSE two parts, and wherein PD is the PSE load accepting power supply, that is the client device of PoE system.PSE is the equipment that ethernet client equipment is powered, and is also the manager of whole Power over Ethernet process simultaneously.
In existing PoE system, PD function is what to be separated with PSE function, and PSE port can only provide electric power signal, and PD port can only accept electric power signal.Therefore, PD and PSE Function Integration Mechanism can be become a large research topic by it in a port to design a kind of network port.
Summary of the invention
In view of this, need provide a kind of network port, it can by PD and PSE Function Integration Mechanism in a port.
In addition, also need to provide a kind of Ethernet device, it can by PD and PSE Function Integration Mechanism in a port.
A kind of network port that an embodiment of the present invention provides, for being connected with external ethernet port by grid line.The described network port comprises connectivity port, power receiving equipment unit, power supply unit unit, control unit and switch unit.Described power supply unit unit is used for obtaining electric power signal from external power source and exporting.Described control unit is for judging the type of the described external ethernet port be connected with described connectivity port and exporting judging result signal.Described switch unit is electrically connected on described connectivity port, described control unit, described power supply unit unit and described power receiving equipment unit, judging result signal for exporting according to described control unit is selected whether to connect described power supply unit unit and described connectivity port, and selects whether connect described power receiving equipment unit and described connectivity port.
Preferably, when the type of described external ethernet port is power receiving equipment port, described switch unit connects described power supply unit unit and described connectivity port, and described switch unit disconnects described power receiving equipment unit and described connectivity port; When the type of described external ethernet port is power supply unit port, described switch unit disconnects described power supply unit unit and described connectivity port, and described switch unit connects described power receiving equipment unit and described connectivity port.
Preferably, the described network port also comprises power supply unit pattern and power receiving equipment pattern, when described switch unit connects described power supply unit unit and described connectivity port, described power supply unit unit is also selected whether to export described electric power signal to described external ethernet port according to the present mode of the described network port; When described switch unit connects described power receiving equipment unit and described connectivity port, described power receiving equipment unit is also selected whether to obtain described electric power signal from described external ethernet port according to the present mode of the described network port.
Preferably, when the described network port is in power supply unit pattern and described switch unit connects described power supply unit unit and described connectivity port, described power supply unit unit exports described electric power signal to described external ethernet port, otherwise described power supply unit unit does not export described electric power signal to described external ethernet port.
Preferably, when the described network port is in power receiving equipment pattern and described switch unit connects described power receiving equipment unit and described connectivity port, described power receiving equipment unit obtains described electric power signal from described external ethernet port, otherwise described power receiving equipment unit does not obtain described electric power signal from described external ethernet port.
Preferably, described switch unit comprises the first electronic switch and the second electronic switch.Described first electronic switch comprises first end, the second end and control end.Described first end is electrically connected on described connectivity port, and described second end is electrically connected on described power supply unit unit, and described control end is electrically connected on described control unit.The judging result signal that described first electronic switch is used for exporting according to described control unit is selected to connect described power supply unit unit and described connectivity port.Described second electronic switch comprises first end, the second end and control end.Described first end is electrically connected on described connectivity port, and described second end is electrically connected on described power receiving equipment unit, and described control end is electrically connected on described control unit.The judging result signal that described second electronic switch is used for exporting according to described control unit is selected to connect described power receiving equipment unit and described connectivity port.
Preferably, described connectivity port comprises first end and the second end.Described control unit comprises detecting unit and controller.Described detecting unit is for detecting the voltage of described first end and described second end.Described controller exports judging result signal for judging that according to the voltage of described first end and described second end the type of the described external ethernet port connected with described connectivity port is also corresponding.
Preferably, described controller comprises the first detecting pin, the second detecting pin and the 3rd detecting pin.Described detecting unit comprises the first resistance, the 3rd electronic switch and the second resistance.Described first resistance one end is electrically connected on the first end of described connectivity port and the first detecting pin of described controller.Described 3rd electronic switch comprises first end, the second end and control end.Described first end is electrically connected on the other end of described first resistance, and described second end is electrically connected on the second end of described connectivity port and the second detecting pin of described controller.Described second resistance one end is electrically connected on the control end of described 3rd electronic switch, and the other end is electrically connected on the 3rd detecting pin of described controller.Wherein, described controller is used for obtaining the first end of described connectivity port, the voltage of the second end respectively by described first detecting pin, the second detecting pin.
A kind of Ethernet device that an embodiment of the present invention provides, comprises power subsystem, multiple network port and control unit.The electric power signal that described power subsystem exports for receiving external power source, to power to described Ethernet device.Control unit is electrically connected on described multiple network port, for judging the type of the external ethernet port be connected with each network port described, exports multiple judging result signal with correspondence.Each network port includes connectivity port, power receiving equipment unit, power supply unit unit and switch unit.The judging result signal that each switch unit is used for exporting according to described control unit is selected whether to connect the power supply unit unit in map network port and connectivity port, and selects the power receiving equipment unit whether connected in map network port and connectivity port.
Preferably, each network port also comprises power supply unit pattern and power receiving equipment pattern, when the power supply unit unit in described switch unit connection map network port and connectivity port, described power supply unit unit is also selected whether to export described electric power signal to connected external ethernet port according to the present mode of the described network port; When the power receiving equipment unit in described switch unit connection map network port and connectivity port, described power receiving equipment unit is also selected whether to obtain described electric power signal from connected external ethernet port according to the present mode of the described network port.
Preferably, when the described network port is in power supply unit pattern and described switch unit connects power supply unit unit in map network port and connectivity port, described power supply unit unit exports described electric power signal to connected external ethernet port, otherwise described power supply unit unit does not export described electric power signal to connected external ethernet port.
Preferably, when the described network port is in power receiving equipment pattern and described switch unit connects power receiving equipment unit in map network port and connectivity port, described power receiving equipment unit obtains described electric power signal from connected external ethernet port, otherwise described power receiving equipment unit does not obtain described electric power signal from connected external ethernet port.
Preferably, described power receiving equipment unit also for obtaining described electric power signal from connected external ethernet port, with do not receive at described power subsystem external power source export electric power signal time, described Ethernet device is powered.
Preferably, described multiple network port comprises first network port and second network port, when the power receiving equipment unit of described first network port obtains described electric power signal from connected external ethernet port, the power supply unit unit of described second network port is also for obtaining described electric power signal and export from the power receiving equipment unit of described first network port and described power subsystem, to improve the power output of the power supply unit unit of described second network port.
Preferably, described multiple network port comprises first network port and second network port, when described first network port power receiving equipment unit from connected external ethernet port obtain described electric power signal and described power subsystem do not receive external power source export electric power signal time, the power supply unit unit of described second network port is also for obtaining described electric power signal from the power receiving equipment unit of described first network port and export.
The above-mentioned network port and Ethernet device by PD and PSE Function Integration Mechanism in a port, and automatically switch to corresponding PSE pattern or PD pattern according to connected PSE device or PD device, when also avoiding being connected with unmatched ethernet port, the network port or Ethernet device are caused damage simultaneously.
Accompanying drawing explanation
Fig. 1 is the module map of the network port in an embodiment of the present invention.
Fig. 2 is the module map of the network port in another execution mode of the present invention.
Fig. 3 is the circuit diagram of the network port in an embodiment of the present invention.
Fig. 4 is the circuit diagram of the network port in another execution mode of the present invention.
Fig. 5 is the module map of Ethernet device in an embodiment of the present invention.
Main element symbol description
Ethernet device 100
The network port 10,10a, 10b
Grid line 20
External ethernet port 30,30a, 30b
External power source 40
Connectivity port 102
Power receiving equipment unit 104
Power supply unit unit 106
Control unit 108
Detecting unit 1082
Controller 1084
Switch unit 110
Power subsystem 112
First to the 3rd electronic switch Q1, Q2, Q3
The first to the second resistance R1, R2
Load resistance Rpd
The first to the second end A1, A2
First to the 3rd detecting pin d1, d2, d3
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Fig. 1 is the module map of the network port 10 1 execution mode of the present invention.In the present embodiment, the network port 10 is connected with external ethernet port 30 by grid line 20.External ethernet port 30 can be power supply unit (PowerSouringEquipment, PSE) port, also can be power receiving equipment (PoweredDevice, PD) port.The network port 10 comprises PSE pattern and PD pattern, and when the network port 10 is PSE pattern, the network port 10 can output power signal, to power to the PD port be connected electrically; When the network port 10 is PD pattern, the network port 10 is for receiving electric power signal.In the present embodiment, grid line 20 can be RJ45 twisted-pair feeder.
In the present embodiment, the network port 10 comprises connectivity port 102, PD unit 104, PSE unit 106, control unit 108 and switch unit 110.Grid line 20 one end is connected to connectivity port 102, and the other end is connected to external ethernet port 30.When the network port 10 is PSE pattern, the network port 10 obtains electric power signal by PSE unit 106 from external power source 40 and exports the PD port be connected electrically to, when the network port 10 is PD pattern, the network port 10 receives electric power signal by PD unit 104.Control unit 108 is electrically connected on connectivity port 102, and control unit 108 judgement exports judging result signal with the type of the external ethernet port 30 of the current connection in connectivity port 102 is also corresponding.Switch unit 110 is electrically connected on connectivity port 102, PD unit 104, PSE unit 106 and control unit 108, switch unit 110 is selected to connect PD unit 104 and connectivity port 102 according to the judging result signal that control unit 108 exports, or selects to connect PSE unit 106 and connectivity port 102.The pattern that the network port 10 is realized according to the type selecting of external ethernet port 30 is suitable by switch unit 110 is mated with external ethernet port 30.
As to further improvement of the present invention, when switch unit 110 connects PSE unit 106 with connectivity port 102, according to the present mode of the network port 10, PSE unit 106 also can select whether output power signal is to external ethernet port 30; When switch unit 110 connects PD unit 104 with connectivity port 102, PD unit 104 also can be selected whether to obtain electric power signal from external ethernet port 30 according to the present mode of the network port 10.When switch unit 110 connect PSE unit 106 with during connectivity port 102 and the network port 10 for PSE pattern time, PSE unit 106 output power signal is to external ethernet port 30.When switch unit 110 connect PD unit 104 with during connectivity port 102 and the network port 10 for PD pattern time, PD unit 104 obtains electric power signal from external ethernet port 30.
In an embodiment of the present invention, by the information of the PSE enable pin in the reading network port 10, PD enable pin, control unit 108 can judge whether the network port 10 switches to PSE pattern or PD pattern, and then come corresponding output first control signal or the second control signal.When switch unit 110 connects PSE unit 106 with connectivity port 102, PSE unit 106 is when receiving the first control signal that control unit 108 exports, and PSE unit 106 output power signal is to external ethernet port 30.When switch unit 110 connects PD unit 104 with connectivity port 102, PD unit 104 is when receiving the second control signal that control unit 108 exports, and PD unit 104 obtains electric power signal from external ethernet port 30.
The network port 10 realizes when judging external ethernet port 30 as PD port by control unit 108, switch unit 110, can be arranged so that the network port 10 is in PSE pattern by user, and then by PSE unit 106, external ethernet port 30 be powered; When the network port 10 judges external ethernet port 30 as PSE port, can be arranged so that the network port 10 is in PD pattern by user, and then obtain electric power signal by PD unit 104 from external ethernet port 30.Simultaneously; due in the present embodiment; control unit 108, by judging that the type of external ethernet port 30 controls switch unit 110 again and carries out path switching, can realize protecting the network port 10, cause damage to avoid unmatched ethernet port to the network port 10.
Fig. 2 is the module map of another execution mode of the network port 10 of the present invention.In the present embodiment, connectivity port 102 comprises first end A1 and the second end A2.Control unit 108 comprises detecting unit 1082 and controller 1084.Detecting unit 1082 is electrically connected on first end A1 and the second end A2 of connectivity port 102, and detecting unit 1082 is detected the first end A1 of connectivity port 102 and the voltage of the second end A2 and the magnitude of voltage detected is sent to controller 1084.Controller 1084 exports judging result signal according to the voltage of first end A1 and the second end A2.Switch unit 110 comprises the first electronic switch Q1 and the second electronic switch Q2.First electronic switch Q1 comprises first end, the second end and control end.The first end of the first electronic switch Q1 is electrically connected on the first end A1 of connectivity port 102, second end of the first electronic switch Q1 is electrically connected on one end of PD unit 104, the other end that the control end of the first electronic switch Q1 is electrically connected on controller 1084, PD unit 104 is electrically connected on the second end A2 of connectivity port 102.Controller 1084 exports judging result signal to control conducting and the disconnection of the first electronic switch Q1, to select to connect PD unit 104 and connectivity port 102.Second electronic switch Q2 comprises first end, the second end and control end.The first end of the second electronic switch Q2 is electrically connected on connectivity port 102 first end A1, second end of the second electronic switch Q2 is electrically connected on one end of PSE unit 106, the other end that the control end of the second electronic switch Q2 is electrically connected on controller 1084, PSE unit 106 is electrically connected on the second end A2 of connectivity port 102.Controller 1084 exports judging result signal to control conducting and the disconnection of the second electronic switch Q2, to select to connect PSE unit 106 and connectivity port 102.
Fig. 3 is the circuit diagram of the network port 10 1 execution mode of the present invention.In the present embodiment, external ethernet port 30a is PD port.Controller 1084 comprises the first detecting pin d1, the second detecting pin d2 and the 3rd detecting pin d3.Detecting unit 1082 comprises the first resistance R1, the second resistance R2 and the 3rd electronic switch Q3.One end of first resistance R1 is electrically connected on the second end A2 of connectivity port 102 and the first detecting pin d1 of controller 1084.3rd electronic switch Q3 comprises first end, the second end and control end.The first end of the 3rd electronic switch Q3 is electrically connected on the other end of the first resistance R1,3rd electronic switch Q3 the second end be electrically connected on the second detecting pin d2 of the first end A1 of connectivity port 102 and controller 1084,3rd electronic switch Q3 control end be electrically connected on one end of the second resistance R2, the other end of the second resistance R2 is electrically connected on the 3rd detecting pin d3 of controller 1084.
In the present embodiment, because external ethernet port 30a is for PD port.Therefore external ethernet port 30a equivalence can become a load resistance Rpd.When the network port 10 is in sense mode, 3rd electronic switch Q3 closes, first electronic switch Q1 and the second electronic switch Q2 disconnects, the voltage that this Time Controller 1084 arranges the first detecting pin d1 is Vd1=a, the voltage of the 3rd detecting pin d3 is Vd3=0, then the voltage Vd2 of the second detecting pin d2 can be drawn by following formulae discovery:
Vd2＝a*R2/[R2+(R1+Rpd)/R1*Rpd]
That is when controller 1084 judges that the voltage Vd2 of the second detecting pin d2 meets above-mentioned formula, can identify external ethernet port 30a is PD port.Controller 1084 controls the second electronic switch Q2 again and closes, first electronic switch Q1 and the 3rd electronic switch Q3 disconnects, thus make PSE unit 106 and connectivity port 102 conducting, when the network port 10 is in PSE pattern, PSE unit 106 gets final product output power signal to external ethernet port 30a.In like manner known, when the network port 10 is not connected with external ethernet port 30, the voltage Vd2 of the second detecting pin d2 can be drawn by following formulae discovery:
Vd2＝a*R2/(R1+R2)
That is, when controller 1084 judges that the voltage Vd2 of the second detecting pin d2 meets above-mentioned formula, the network port 10 can be identified and be not connected with external ethernet port 30.
In an embodiment of the present invention, if the external ethernet port 30b be connected with the network port 10 is PSE port, as shown in Figure 4, then external ethernet port 30b equivalence can become a power supply V1.When the network port 10 is in sense mode, 3rd electronic switch Q3 closes, first electronic switch Q1 and the second electronic switch Q2 disconnects, the voltage of the first detecting pin d1 monitored by controller 1084, if controller 1084 judges that the first detecting pin d1 exists voltage and this magnitude of voltage is increasing gradually until stable after a preset value, then identifiable design goes out external ethernet port 30a is PSE port.Controller 1084 controls the first electronic switch Q1 again and closes, second electronic switch Q2 and the 3rd electronic switch Q3 disconnects, thus make PD unit 104 and connectivity port 102 conducting, when the network port 10 is in PD pattern, PD unit 104 can obtain electric power signal from external ethernet port 30a.In the present embodiment, when controller 1084 judge the first detecting pin d1 voltage 2.8V < Vd1≤10V and in 1s voltage amplification be greater than 1V, then judge that external ethernet port 30a is PSE port.
In the present embodiment, PD unit 104 and PSE unit 106 can be the module realizing PD function and PSE function in existing power over Ethernet, so no longer describe in detail.The chip that controller 1084 can be field programmable gate array (FPGA), programmable logic device (PLD), micro-control unit (MCU), digital signal processor (DSP), central processing unit (CPU) etc. can carry out signal transacting.First electronic switch Q1, the second electronic switch Q2 and the 3rd electronic switch Q3 can be electronic switching tubes, or other can realize the module of switching function according to control signal.
Fig. 5 is the schematic diagram of Ethernet device 100 1 execution mode of the present invention.In the present embodiment, Ethernet device 100 comprise the multiple network port 10a, 10b (in the present embodiment, only for two, but be not limited with two, can comprise be less than or more than the network port) and power subsystem 112.Power subsystem 112 obtains electric power signal to power to Ethernet device 100 from external power source 40.In the present embodiment, each network port 10a, the network port 10 shown in 10b and Fig. 1 are substantially identical, and difference is only, the multiple network port 10a, 10b share a control unit 108.Control unit 108 judges the type of the external ethernet port 30 be connected with each network port 10a, 10b, exports multiple judging result signal with correspondence.Switch unit 110 in each network port 10a, 10b carries out selection according to the judging result signal received and switches.For example, when control unit 108 judges that the external ethernet port 30 be connected with network port 10a is PD ports, the external ethernet port 30 be connected with network port 10b is PSE ports.Its PSE unit 106 of switch unit 110 gating then in network port 10a and connectivity port 102, its PD unit 104 of switch unit 110 gating in network port 10b and connectivity port 102.In other execution modes of the present invention, each network port 10a, 10b also can comprise separately a control unit 108.
As to further improvement of the present invention, when power subsystem 112 is connected with external power source 40, if network port 10a is PSE pattern, network port 10b is PD pattern, network port 10a can obtain electric power signal from power subsystem 112 and network port 10b simultaneously, thus improves network port 10a power output.For example, when power subsystem 112 is connected with external power source 40, and network port 10a is PSE pattern, and when network port 10b is not connected with external ethernet port 30, now network port 10a peak power output is 30W.Comparatively speaking, if power subsystem 112 is connected with external power source 40, and network port 10a is PSE pattern, when network port 10b is PD pattern, that is now network port 10b also obtains electric power signal from external ethernet port 30, then network port 10a peak power output can reach 50W.
As to further improvement of the present invention, when power subsystem 112 disconnects with external power source 40, Ethernet device 100 can obtain electric power signal by the one or more network port 10a, 10b from connected PSE port, to power to Ethernet device 100, thus Ethernet device 100 can normally be worked.Meanwhile, its electric power signal obtained also can be powered to connected PD port by other network ports, and furthermore achieved that is transferred the electric power signal of outside PSE port by Ethernet device 100 powers to outside PD port again.
The above-mentioned network port and Ethernet device by PD and PSE Function Integration Mechanism in a port, and automatically switch to corresponding PSE pattern or PD pattern according to connected PSE device or PD device, also can avoid causing damage to the network port or Ethernet device when being connected with unmatched ethernet port simultaneously.
Claims (15)
1. a network port, is characterized in that, the described network port comprises:
Connectivity port, for being connected with external ethernet port by grid line;
Power receiving equipment unit;
Power supply unit unit, for obtaining electric power signal from external power source and exporting;
Control unit, for judging the type of the described external ethernet port be connected with described connectivity port and exporting judging result signal; And
Switch unit, be electrically connected on described connectivity port, described control unit, described power supply unit unit and described power receiving equipment unit, judging result signal for exporting according to described control unit is selected whether to connect described power supply unit unit and described connectivity port, and selects whether connect described power receiving equipment unit and described connectivity port.
2. the network port as claimed in claim 1, it is characterized in that, when the type of described external ethernet port is power receiving equipment port, described switch unit connects described power supply unit unit and described connectivity port, and described switch unit disconnects described power receiving equipment unit and described connectivity port; When the type of described external ethernet port is power supply unit port, described switch unit disconnects described power supply unit unit and described connectivity port, and described switch unit connects described power receiving equipment unit and described connectivity port.
3. the network port as claimed in claim 1, it is characterized in that, the described network port also comprises power supply unit pattern and power receiving equipment pattern, when described switch unit connects described power supply unit unit and described connectivity port, described power supply unit unit is also selected whether to export described electric power signal to described external ethernet port according to the present mode of the described network port; When described switch unit connects described power receiving equipment unit and described connectivity port, described power receiving equipment unit is also selected whether to obtain described electric power signal from described external ethernet port according to the present mode of the described network port.
4. the network port as claimed in claim 3, it is characterized in that, when the described network port is in power supply unit pattern and described switch unit connects described power supply unit unit and described connectivity port, described power supply unit unit exports described electric power signal to described external ethernet port, otherwise described power supply unit unit does not export described electric power signal to described external ethernet port.
5. the network port as claimed in claim 3, it is characterized in that, when the described network port is in power receiving equipment pattern and described switch unit connects described power receiving equipment unit and described connectivity port, described power receiving equipment unit obtains described electric power signal from described external ethernet port, otherwise described power receiving equipment unit does not obtain described electric power signal from described external ethernet port.
6. the network port as claimed in claim 1, it is characterized in that, described switch unit comprises:
First electronic switch, comprise first end, the second end and control end, described first end is electrically connected on described connectivity port, described second end is electrically connected on described power supply unit unit, described control end is electrically connected on described control unit, and the judging result signal that described first electronic switch is used for exporting according to described control unit is selected whether to connect described power supply unit unit and described connectivity port; And
Second electronic switch, comprise first end, the second end and control end, described first end is electrically connected on described connectivity port, described second end is electrically connected on described power receiving equipment unit, described control end is electrically connected on described control unit, and the judging result signal that described second electronic switch is used for exporting according to described control unit is selected whether to connect described power receiving equipment unit and described connectivity port.
7. the network port as claimed in claim 1, it is characterized in that, described connectivity port comprises first end and the second end, and described control unit comprises:
Detecting unit, for detecting the voltage of described first end and described second end; And
Controller, exports judging result signal for judging that according to the voltage of described first end and described second end the type of the described external ethernet port connected with described connectivity port is also corresponding.
8. the network port as claimed in claim 7, is characterized in that, described controller comprises the first detecting pin, the second detecting pin and the 3rd detecting pin, and described detecting unit comprises:
First resistance, one end is electrically connected on the first end of described connectivity port and the first detecting pin of described controller;
3rd electronic switch, comprises first end, the second end and control end, and described first end is electrically connected on the other end of described first resistance, and described second end is electrically connected on the second end of described connectivity port and the second detecting pin of described controller; And
Second resistance, one end is electrically connected on the control end of described 3rd electronic switch, and the other end is electrically connected on the 3rd detecting pin of described controller;
Wherein, described controller is used for obtaining the first end of described connectivity port and the voltage of the second end respectively by described first detecting pin, the second detecting pin.
9. an Ethernet device, comprising:
Power subsystem, for receiving the electric power signal that external power source exports, to power to described Ethernet device;
Multiple network port, each network port includes connectivity port, power receiving equipment unit and power supply unit unit;
Control unit, is electrically connected on described multiple network port, for judging the type of the external ethernet port be connected with each network port described, exports multiple judging result signal with correspondence;
Wherein, each network port also comprises switch unit, the judging result signal that each switch unit is used for exporting according to described control unit is selected whether to connect the power supply unit unit in map network port and connectivity port, and selects the power receiving equipment unit whether connected in map network port and connectivity port.
10. Ethernet device as claimed in claim 9, it is characterized in that, each network port also comprises power supply unit pattern and power receiving equipment pattern, when the power supply unit unit in described switch unit connection map network port and connectivity port, described power supply unit unit is also selected whether to export described electric power signal to connected external ethernet port according to the present mode of the described network port; When the power receiving equipment unit in described switch unit connection map network port and connectivity port, described power receiving equipment unit is also selected whether to obtain described electric power signal from connected external ethernet port according to the present mode of the described network port.
11. network ports as claimed in claim 10, it is characterized in that, when the described network port is in power supply unit pattern and described switch unit connects power supply unit unit in map network port and connectivity port, described power supply unit unit exports described electric power signal to connected external ethernet port, otherwise described power supply unit unit does not export described electric power signal to connected external ethernet port.
12. network ports as claimed in claim 10, it is characterized in that, when the described network port is in power receiving equipment pattern and described switch unit connects power receiving equipment unit in map network port and connectivity port, described power receiving equipment unit obtains described electric power signal from connected external ethernet port, otherwise described power receiving equipment unit does not obtain described electric power signal from connected external ethernet port.
13. Ethernet device as claimed in claim 9, it is characterized in that, described power receiving equipment unit also for obtaining described electric power signal from connected external ethernet port, with do not receive at described power subsystem external power source export electric power signal time, described Ethernet device is powered.
14. Ethernet device as claimed in claim 9, it is characterized in that, described multiple network port comprises first network port and second network port, when the power receiving equipment unit of described first network port obtains described electric power signal from connected external ethernet port, the power supply unit unit of described second network port is also for obtaining described electric power signal and export from the power receiving equipment unit of described first network port and described power subsystem, to improve the power output of the power supply unit unit of described second network port.
15. Ethernet device as claimed in claim 9, it is characterized in that, described multiple network port comprises first network port and second network port, when described first network port power receiving equipment unit from connected external ethernet port obtain described electric power signal and described power subsystem do not receive external power source export electric power signal time, the power supply unit unit of described second network port is also for obtaining described electric power signal from the power receiving equipment unit of described first network port and export.
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| CN201410495843.3A CN105515787A (en) | 2014-09-24 | 2014-09-24 | Network port and Ethernet device |
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| CN201410495843.3A CN105515787A (en) | 2014-09-24 | 2014-09-24 | Network port and Ethernet device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106101028A (en) * | 2016-08-18 | 2016-11-09 | 深圳市海硕科技有限公司 | A kind of Ethernet switch and by electricity power supply circuits |
| CN108418444A (en) * | 2018-04-10 | 2018-08-17 | 厦门亿联网络技术股份有限公司 | A kind of POE bidirectional power supplies device |
| CN109428728A (en) * | 2017-08-28 | 2019-03-05 | 华为技术有限公司 | Autosensing method and apparatus |
| CN109428726A (en) * | 2017-08-28 | 2019-03-05 | 华为技术有限公司 | Autosensing method and apparatus |
| CN110247776A (en) * | 2018-03-09 | 2019-09-17 | 深圳市优特普电子有限公司 | A kind of PoE slow power supply unit, system and method |
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| CN106101028A (en) * | 2016-08-18 | 2016-11-09 | 深圳市海硕科技有限公司 | A kind of Ethernet switch and by electricity power supply circuits |
| CN106101028B (en) * | 2016-08-18 | 2022-06-28 | 深圳市海硕科技有限公司 | Ethernet switch and power receiving and supplying circuit thereof |
| CN109428726A (en) * | 2017-08-28 | 2019-03-05 | 华为技术有限公司 | Autosensing method and apparatus |
| CN109428728A (en) * | 2017-08-28 | 2019-03-05 | 华为技术有限公司 | Autosensing method and apparatus |
| CN109428728B (en) * | 2017-08-28 | 2021-05-07 | 华为技术有限公司 | Port adaptive method and device |
| US11005671B2 (en) | 2017-08-28 | 2021-05-11 | Huawei Technologies Co., Ltd. | Port adaptation method and apparatus |
| US11082322B2 (en) | 2017-08-28 | 2021-08-03 | Huawei Technologies Co., Ltd. | Port adaptation method and device |
| CN109428726B (en) * | 2017-08-28 | 2022-07-26 | 华为技术有限公司 | Port adaptive method and device |
| US11677652B2 (en) | 2017-08-28 | 2023-06-13 | Huawei Technologies Co., Ltd. | Port adaptation method and device |
| CN110247776A (en) * | 2018-03-09 | 2019-09-17 | 深圳市优特普电子有限公司 | A kind of PoE slow power supply unit, system and method |
| CN108418444A (en) * | 2018-04-10 | 2018-08-17 | 厦门亿联网络技术股份有限公司 | A kind of POE bidirectional power supplies device |
| CN113938333A (en) * | 2021-10-11 | 2022-01-14 | 厦门亿联网络技术股份有限公司 | Ethernet power supply device and system |
| CN113938333B (en) * | 2021-10-11 | 2023-12-05 | 厦门亿联网络技术股份有限公司 | Power over Ethernet device and system |
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