CN101782613A - System, device and method for realizing Ethernet power supply function testing - Google Patents
System, device and method for realizing Ethernet power supply function testing Download PDFInfo
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Abstract
The invention discloses a system, a device and a method for realizing Ethernet power supply function testing, wherein the system includes the followings that: the PSE under testing connects all the ports thereof under testing to the corresponding ports of a POE function testing device; and the POE function testing device separates the data signal which is sent out by the PSE and is input from one port and the power signal through a barrier device, and then loops back and connects the separated data signal to another port through a second barrier device, and the data signal serving as receipt is returned to the PSE under testing. The invention takes full advantage of the ports of the testing device to multiply the quantity of the testing ports, thereby solving the problem in batch testing in the production of power supply equipment.
Description
Technical field
The present invention relates to the ethernet device field tests, relate in particular to system, device and method that realization is tested the ethernet device with POE function.
Background technology
The traditional ethernet equipment interface only provides the data-signal transmitting function, and related network device also needs power supplied locally except that the needs data connect, brought some inconvenience to comprehensive wiring.
Develop rapidly along with the communication technology, has POE (POE, Power Over Ethernet) the POE equipment of function can be when realizing high-quality information transmission, for terminal devices such as Ephone and WLAN AP provide the power supply of the far-end of following 802.3af and 802.3at standard, having eliminated needs the extra socket and the trouble of wiring, both realized to the Ethernet power devices, also reduced the wiring complexity and the cost of communication facilities.
The definition of POE relevant criterion, feeder ear equipment (PSE, Power Sourcing Equipment) allows the network equipment to use the Power-over-Ethernet identical, also need simultaneously receiving end equipment (PD, Power Device) is managed: detect effective PD with data path; Confirm required power grade and the power bracket thereof of PD; And confirm that during powering PD is online or the like.
For convenience different POE proving installations has appearred in the test of the POE function of PSE on the market, but remains in some shortcomings, and one of them is that batch testing problem to power-supply unit production is not still solved well.Because the use of its interface of existing P OE device for testing functions is divided into 2 parts: a part of port is used for mask data signal and power supply signal, and a part of in addition port is used to export the data-signal of separation.Such design causes the utilization factor of its port of proving installation low, the port that is used to test seldom, so can't be competent at the batch testing that PSE produces.
Summary of the invention
Technical matters to be solved by this invention provides a kind of system, device and method of realizing the POE functional test, can carry out batch testing to the ethernet device of producing.
In order to solve the problems of the technologies described above, the invention provides a kind of system that realizes POE (POE) functional test, comprising: tested ethernet device (PSE) and POE device for testing functions, wherein:
Tested PSE is used for that all ports to be measured are connected to POE device for testing functions corresponding ports by ethernet line with it;
The POE device for testing functions, after being used for the data-signal that will send and electric power signal separating by isolating device from the tested PSE of port input, separated data-signal is connected to the another port by another isolating device loopback, returns to tested PSE as the data-signal that receives.
Further, described isolating device is a transformer;
The POE device for testing functions will be connected to the secondary coil of another transformer to loopback by the differential lines that the secondary coil of a transformer is drawn the data-signal of separation, and be connected to the another port by the primary coil of this another transformer.
Further,
The POE device for testing functions is drawn electric power signal by any fixed taps of the primary coil of all transformers, is transferred to the function that receiving end equipment (PD) circuit is realized electric power signal detection, power classification and load draw power.
Further,
Tested PSE initiates detection to the POE device for testing functions as access device, and after definite this access device is standard compliant PD and power rank thereof, sends data-signal and electric power signal; The interface to be measured that is used to send data-signal and electric power signal is in same Virtual Local Area Network with the interface to be measured that is used to receive data-signal or for different VLAN;
Be connected to the first's port in the POE device for testing functions all of the port of interface to be measured of tested PSE by ethernet line, as connecting the data-signal that tested PSE sends and the right inlet of differential lines of electric power signal, second portion port in this POE device for testing functions all of the port returns to the right outlet of differential lines of the separated data-signal of tested PSE as connection; Perhaps, the second portion port is as connecting the data-signal that tested PSE sends and the right inlet of differential lines of electric power signal, and first's port returns to the right outlet of differential lines of the separated data-signal of tested PSE as connection.
In order to solve the problems of the technologies described above, the invention provides a kind of device of realizing POE (POE) functional test, comprise port and isolating device, wherein:
Port is used for the port to be measured by the tested PSE of ethernet line connection;
Isolating device is used for being connected with port; Wherein the isolating device data-signal that will send from the tested PSE of port input is with after electric power signal separates, by another isolating device separated data-signal loopback is connected to the another port, returns to tested PSE as the data-signal that receives.
Further, isolating device is a transformer;
The differential lines of drawing the data-signal of described separation by the secondary coil of a transformer is connected to the secondary coil of another transformer to loopback, and is connected to the another port by the primary coil of this another transformer.
Further,
Any fixed taps of the primary coil by all transformers is drawn electric power signal, is transferred to the function that receiving end equipment (PD) circuit is realized electric power signal detection, power classification and load draw power.
Further,
Connect the first's port in all of the port of interface to be measured of tested PSE by ethernet line, as connecting the data-signal that tested PSE sends and the right inlet of differential lines of electric power signal, second portion port in all of the port returns to the right outlet of differential lines of the separated data-signal of tested PSE as connection; Perhaps, the second portion port is as connecting the data-signal that tested PSE sends and the right inlet of differential lines of electric power signal, and first's port returns to the right outlet of differential lines of the separated data-signal of tested PSE as connection.
In order to solve the problems of the technologies described above, the invention provides a kind of method that realizes POE (POE) functional test, relate to tested ethernet device (PSE) and POE device for testing functions, this method comprises:
Tested PSE is by receiving end equipment (PI) transmission of data signals and the power supply signal of ethernet line to standard;
The POE device for testing functions that is modeled as the PD of standard is isolated data-signal and power supply signal from the Ethernet transmission signals of port input by isolating device, and the data-signal that separates is connected to the another port by another isolating device loopback, return to tested PSE as the data-signal that receives.
Further, described isolating device is a transformer;
The POE device for testing functions will be drawn the secondary coil of the data-signal loopback of separation to another transformer by the secondary coil of a transformer, and be connected to the another port by the primary coil of this another transformer, return as the data-signal that receives.
Further, also comprise:
The POE device for testing functions is drawn electric power signal by any fixed taps of the primary coil of all transformers, is transferred to the function that the PD circuit is realized electric power signal detection, power classification and load draw power.
Further,
Tested PSE is used to send the interface to be measured of data-signal and electric power signal and is used to receive the interface to be measured of data-signal, is in same Virtual Local Area Network or for different VLAN;
First's port in all of the port of POE device for testing functions, as the input data-signal that sends of tested PSE and the inlet of electric power signal, second portion port in all of the port returns to the outlet of the separated data-signal of tested PSE as output; Perhaps, the second portion port is as the input data-signal that sends of tested PSE and the inlet of electric power signal, and first's port returns to the right outlet of differential lines of the separated data-signal of tested PSE as output.
Further, before tested PSE transmission of data signals and power supply signal, also comprise:
PSE initiates to detect as access device to the POE device for testing functions, and definite access device is standard compliant PD and power rank thereof.
Further,
The sign that PSE feeds back by the POE device for testing functions belongs to the answer signal of the PD of standard and determines that access device is standard compliant PD;
PSE carries out power classification and determines its power rank according to the answer signal of the sign PD power demand grade of POE device for testing functions feedback.
Adopt the method, system and device of realization POE of the present invention functional test, owing to guaranteed that each port of proving installation can mask data signal and electric power signal, again can be as the output port of data-signal, the input channel that each port by proving installation can data signal under test thus, output channel that also can data signal under test, simultaneously can also test the electric power signal path, therefore made full use of the port of proving installation, make the quantity of test port be multiplied, thereby solved the batch testing problem that power-supply unit is produced.
Description of drawings
Fig. 1 is the connection diagram of the system embodiment of realization POE of the present invention functional test;
Fig. 2 is the internal port connection diagram of the device embodiment of realization POE of the present invention functional test;
Fig. 3 is the connection diagram of isolation module one embodiment among the device embodiment shown in Figure 2;
Fig. 4 is the connection diagram of another embodiment of isolation module among the device embodiment shown in Figure 2;
Fig. 5 is the process flow diagram of the method embodiment of realization POE of the present invention functional test.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment technical scheme of the present invention is at length set forth.The embodiment that below exemplifies only is used for description and interpretation the present invention, and does not constitute the restriction to technical solution of the present invention.
As shown in Figure 1, be the system embodiment of realization POE of the present invention functional test, this system comprises tested ethernet device (PSE) and POE device for testing functions, wherein:
Tested PSE is used for the port that it is all and is connected to POE device for testing functions corresponding ports by ethernet line, as shown in Figure 1;
At this, the POE device for testing functions promptly is modeled as the proving installation of PD.
The POE device for testing functions, after being used for the data-signal that will send and electric power signal separating by isolating device from the tested PSE of port input, separated data-signal is connected to the another port by another isolating device loopback, returns to tested PSE as the data-signal that receives.
Fig. 2 expresses the concrete connection diagram of the internal port of POE device for testing functions embodiment shown in Figure 1.In POE device for testing functions inside, isolate data-signal and electric power signal from the signal of connector RJ45-1 port input by isolation module 1 (wherein containing one or more isolating devices), concrete circuit connects as shown in Figure 3, after wherein the electric power signal line is for example drawn from the center tap (or non-central tap) of the primary coil of transformer module 1 transformer, be transferred to PD circuit 1 and realize that electric power signal detects, the function of power classification and load draw power, and data signal line (such as the transmission differential lines that 1. 2. goes up of port is to TX+ and TX-) is for example drawn from the secondary coil of transformer module 1 lower end transformer, be connected to the secondary coil of this transformer module 1 upper end transformer by the loopback circuit, primary coil by this upper end transformer is connected to connector RJ45-1 port (such as the reception differential lines that 3. 6. goes up of port is to RX+ and RX-) then, realizes the connection of data path between two ports of tested PSE with this.
Equally, isolate data-signal and electric power signal from the signal of connector RJ45-2 input by isolation module 2, can be with reference to figure 3, after wherein electric power signal is for example drawn from the center tap (or non-central tap) of the primary coil of transformer module 2, be transferred to PD circuit 2 and realize that electric power signal detects, the function of power classification and load draw power, and data-signal (such as the differential lines that 4. 5. goes up of port to) is for example drawn from the secondary coil of transformer module 2 lower end transformers, be connected to the secondary coil of these transformer module 2 upper end transformers by the loopback circuit, primary coil by this upper end transformer is connected to by connector RJ45-2 port (such as the differential lines that 7. 8. goes up of port to) then, realizes the connection of data path between two ports of tested PSE.
Transformer module 1 shown in Fig. 3 and transformer module 2 can correspondingly replace with isolation module 1 among Fig. 4 and isolation module 2.Wherein, isolation module 1 among Fig. 4 and isolation module 2 include 2 inductance components, 4 capacitor elements and 2 photoelectric isolating devices, inductance component is used for drawing electric power signal by any tap (center tap or non-central tap), capacitor element and photoelectric isolating device combination are used to draw corresponding data-signal, and its concrete circuit connects as shown in Figure 4.
Like this, each port of POE device for testing functions all is equivalent to the PD equipment of a standard, the density of POE device for testing functions port just can improve greatly, can realize port batch detection thus to equipment under test, the result who detects can represent by the pilot lamp of each port correspondence, as shown in Figure 1.
Aspect data traffic, can be referring to Fig. 1, can see between port one and the port 2 at data path it being to have realized the external loop-around connection as previously mentioned from the tested PSE; In like manner, on data path, also realized the external loop-around connection between port 3 and the port 4.Like this, port one and port 2 can be divided in the different VLAN (VLAN, Virtual Local Area Network), port 2 and port 3 are divided among the same VLAN, port 3 and port 4 are divided among the different VLAN, and the like; Like this in tested PSE side, the data stream of sending from port one is got back in the port 2 through behind the POE device for testing functions of the present invention; And since this port 2 and port 3 in same VLAN, thereby the data traffic that enters this port 2 is transmitted to port 3; In like manner,, after the data traffic that port 3 flows out is passed through POE device for testing functions of the present invention again, get back to port 4, so can realize the loopback test of data traffic in tested PSE side.
As shown in Figure 3, be the flow process of the method embodiment of realization POE of the present invention functional test, comprise the steps:
101:PSE initiates the detection to access device;
102: after definite access device is standard compliant receiving end equipment PD, determine the power rank of PD, and by ethernet line to PD transmission of data signals and power supply signal;
The sign that PSE feeds back by the POE device for testing functions belongs to the answer signal of standard P D and determines that the equipment that inserts is the power receiving equipment (PD) that meets the IEEE802.3af standard.
PSE carries out power classification and determines its power rank according to the answer signal of the sign PD power demand grade of POE device for testing functions feedback.
The 103:POE device for testing functions is imported the Ethernet transmission signals from a port, and isolates data-signal and power supply signal by isolating device;
104: the electric power signal that separates is transferred to the function that corresponding PD circuit is realized detection, power classification and draw power;
The POE device for testing functions is transferred to corresponding PD circuit respectively with the power supply signal of isolated power supply signal by the definite polar orientation of polar protective circuit output.Provide aging load by this PD circuit, make the PSE power-supply unit have required load, as shown in Figure 2.The PD circuit for example adopts resistor network to absorb the electric power of appointment, and with pilot lamp indication supply access normally whether.
105: the data-signal that separates is connected to the another port by another isolating device loopback, returns to tested PSE as the data-signal that receives.
On the POE device for testing functions, the direct loopback of isolated data-signal is connected in the another one port of this device, can realize like this each port of this device is all tested the POE function of tested PSE (such as switch) as a PD, simultaneously, can also realize that data-transformation facility tests data path and port.Like this, can improve the port density of POE testing apparatus greatly, thereby realize batch testing the POE function of the tested PSE of Ethernet.
Above-mentioned method to the POE functional test of the present invention is simple and reliable, and port density is big, has solved the POE function batch testing problem that PSE produces well.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof as these modifications of the present invention and modification, then all should be in the protection domain of the appended claim of the present invention.
Claims (14)
1. system that realizes POE (POE) functional test comprises: tested ethernet device (PSE) and POE device for testing functions, wherein:
Described tested PSE is used for that all ports to be measured are connected to described POE device for testing functions corresponding ports by ethernet line with it;
Described POE device for testing functions, after being used for the data-signal that will send and electric power signal separating by isolating device from the tested PSE of port input, separated data-signal is connected to the another port by another isolating device loopback, returns to tested PSE as the data-signal that receives.
2. according to the described system of claim 1, it is characterized in that described isolating device is a transformer;
Described POE device for testing functions will be connected to the secondary coil of another transformer to loopback by the differential lines that the secondary coil of a transformer is drawn the data-signal of described separation, and be connected to the another port by the primary coil of this another transformer.
3. according to the described system of claim 2, it is characterized in that,
Described POE device for testing functions is drawn described electric power signal by any fixed taps of the primary coil of all transformers, is transferred to the function that receiving end equipment (PD) circuit is realized electric power signal detection, power classification and load draw power.
4. according to each described system of claim 1 to 3, it is characterized in that,
Described tested PSE initiates detection to the described POE device for testing functions as access device, and after definite described access device is standard compliant described PD and power rank thereof, sends described data-signal and electric power signal; The interface to be measured that is used to send described data-signal and electric power signal is in same Virtual Local Area Network with the interface to be measured that is used to receive data-signal or for different VLAN;
Be connected to the first's port in the described POE device for testing functions all of the port of interface to be measured of described tested PSE by described ethernet line, as connecting the data-signal that described tested PSE sends and the right inlet of differential lines of electric power signal, second portion port in the described POE device for testing functions all of the port returns to the right outlet of differential lines of the described separated data-signal of described tested PSE as connection; Perhaps, described second portion port is as connecting the data-signal that described tested PSE sends and the right inlet of differential lines of electric power signal, and described first port returns to the right outlet of differential lines of the described separated data-signal of described tested PSE as connection.
5. a device of realizing POE (POE) functional test comprises port and isolating device, wherein:
Described port is used for the port to be measured by the tested PSE of ethernet line connection;
Described isolating device is used for being connected with described port; Wherein the isolating device data-signal that will send from the tested PSE of port input is with after electric power signal separates, by another isolating device separated data-signal loopback is connected to the another port, returns to tested PSE as the data-signal that receives.
6. according to the described device of claim 5, it is characterized in that described isolating device is a transformer;
The differential lines of drawing the data-signal of described separation by the secondary coil of a transformer is connected to the secondary coil of another transformer to loopback, and is connected to the another port by the primary coil of this another transformer.
7. according to the described device of claim 6, it is characterized in that,
Any fixed taps of the primary coil by all transformers is drawn described electric power signal, is transferred to the function that receiving end equipment (PD) circuit is realized electric power signal detection, power classification and load draw power.
8. according to each described device of claim 5 to 7, it is characterized in that,
Connect the first's port in all described ports of interface to be measured of tested PSE by ethernet line, as connecting the data-signal that described tested PSE sends and the right inlet of differential lines of electric power signal, second portion port in all described ports returns to the right outlet of differential lines of the described separated data-signal of described tested PSE as connection; Perhaps, described second portion port is as connecting the data-signal that described tested PSE sends and the right inlet of differential lines of electric power signal, and described first port returns to the right outlet of differential lines of the described separated data-signal of described tested PSE as connection.
9. a method that realizes POE (POE) functional test relates to tested ethernet device (PSE) and POE device for testing functions, and this method comprises:
Described tested PSE is by receiving end equipment (PD) transmission of data signals and the power supply signal of ethernet line to standard;
The described POE device for testing functions that is modeled as the PD of described standard is isolated data-signal and power supply signal from the Ethernet transmission signals of port input by isolating device, and the data-signal that separates is connected to the another port by another isolating device loopback, return to tested PSE as the data-signal that receives.
10. in accordance with the method for claim 9, it is characterized in that described isolating device is a transformer;
Described POE device for testing functions will be drawn the secondary coil of the data-signal loopback of described separation to another transformer by the secondary coil of a transformer, and be connected to the another port by the primary coil of this another transformer, return as the data-signal of described reception.
11. in accordance with the method for claim 10, it is characterized in that, also comprise:
Described POE device for testing functions is drawn described electric power signal by any fixed taps of the primary coil of all transformers, is transferred to the function that the PD circuit is realized electric power signal detection, power classification and load draw power.
12. according to each described method of claim 9 to 11, it is characterized in that,
Described tested PSE is used to send the interface to be measured of described data-signal and electric power signal and is used to receive the interface to be measured of data-signal, is in same Virtual Local Area Network or for different VLAN;
First's port in the described port of all of described POE device for testing functions, as the input data-signal that sends of described tested PSE and the inlet of electric power signal, second portion port in all described ports returns to the outlet of the described separated data-signal of described tested PSE as output; Perhaps, described second portion port is as the input data-signal that sends of described tested PSE and the inlet of electric power signal, and described first port returns to the right outlet of differential lines of the described separated data-signal of described tested PSE as output.
13. according to each described method of claim 9 to 11, it is characterized in that, before described tested PSE transmission of data signals and power supply signal, also comprise:
Described PSE initiates to detect as access device to described POE device for testing functions, and determines that described access device is standard compliant described PD and power rank thereof.
14. in accordance with the method for claim 13, it is characterized in that,
The sign that described PSE feeds back by described POE device for testing functions belongs to the answer signal of the PD of standard and determines that described access device is standard compliant described PD;
Described PSE carries out power classification and determines its power rank according to the answer signal of the described PD power demand of the sign grade of described POE device for testing functions feedback.
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