CN108494567B

CN108494567B - POE switch test fixture, test chassis, equipment and system

Info

Publication number: CN108494567B
Application number: CN201810254521.8A
Authority: CN
Inventors: 白孝涛; 陈观玉; 何先贵; 蓝振潘
Original assignee: Comba Telecom Systems China Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2018-03-26
Filing date: 2018-03-26
Publication date: 2021-02-09
Anticipated expiration: 2038-03-26
Also published as: CN108494567A

Abstract

The invention discloses a POE switch test fixture, which comprises a signal port module, a signal port module and a monitoring terminal, wherein the signal port module is used for accessing a POE switch to be tested and the monitoring terminal, and the monitoring terminal is used for monitoring the data exchange state of the POE switch to be tested; the signal isolation device is connected with the signal port module and used for isolating an electric signal in a network signal passing through the POE switch to be tested so that a data signal passes through the signal isolation device and the signal port module; and the load device is connected between the signal port module and the signal isolation device in series and used for providing the test load of the POE switch to be tested. Still disclose a test chassis, a POE switch test equipment and a POE switch test system. Through the structural design of POE switch test fixture, can greatly reduced POE switch's test cost. Machine case, equipment and system based on foretell POE switch test fixture structural design all can effectively reduce the production test cost of POE switch.

Description

POE switch test fixture, test chassis, equipment and system

Technical Field

The invention relates to the technical field of communication, in particular to a POE switch test fixture, a test case, equipment and a system.

Background

With the further development of the information age, the demand for high-speed and high-capacity communication is increasing, the communication technology implemented as the technology is also rapidly updating, and the communication infrastructure is also continuously upgrading and improving. With the widespread push of the internet +, the ethernet-based communication network has further developed to the giga-level and is still developing to increase the speed to meet the needs of social production and living. A POE (POWER Over Ethernet) switch, which is one of the key devices in an Ethernet communication network, is a new-generation product. The POE switch can also provide far-end power supply while transmitting high-quality information, has the dual functions of communication data exchange and far-end equipment power supply, can avoid extra sockets and wiring, directly supplies power to the Ethernet equipment through a network cable, and reduces the wiring complexity and cost of communication equipment.

The POE switch is widely applied by virtue of strong functions of the POE switch. In the production process of the POE switch, batch testing becomes a main link influencing the production efficiency of the POE switch; however, the traditional test of the POE switch adopts outsourced test equipment to undertake the test, and the problem of higher test cost of the POE switch exists.

Disclosure of Invention

Based on the problems existing in the conventional POE switch test, the invention provides a POE switch test fixture, a test case, POE switch test equipment and a POE switch test system.

To achieve the above object, in one aspect, an embodiment of the present invention provides a POE switch test fixture, including:

the system comprises a signal port module, a POE switch and a monitoring terminal, wherein the signal port module is used for accessing the POE switch to be tested and the monitoring terminal, and the monitoring terminal is used for monitoring the data exchange state of the POE switch to be tested;

the signal isolation device is connected with the signal port module and used for isolating an electric signal in a network signal passing through the POE switch to be tested so that a data signal passes through the signal isolation device and the signal port module;

and the load device is connected between the signal port module and the signal isolation device in series and used for providing the test load of the POE switch to be tested.

In one embodiment, the signal port module comprises a first signal port and a second signal port, and the signal isolation device comprises a first signal isolation module and a second signal isolation module;

the first signal port is connected with the input end of the first signal isolation module, the output end of the first signal isolation module is connected with the output end of the second signal isolation module, the second signal port is connected with the input end of the second signal isolation module, the input end of the load device is connected with the positive power supply end of the first signal port or the positive power supply end of the second signal port, and the output end of the load device is connected with the input end of the first signal isolation module or the input end of the second signal isolation module.

In one embodiment, the first signal port and the second signal port are both RJ-45 interfaces in which the power supply positive terminal is provided with an indicator lamp, and the indicator lamp is used for indicating the voltage output state of the POE switch to be tested and/or indicating the access state of the load device.

In one embodiment, the first signal isolation module and the second signal isolation module are both network transformers.

In one embodiment, the load device comprises a switch unit and a load module, the switch unit and the load module are connected in series, and the power supply positive end comprises a first power supply positive end and a second power supply positive end;

the input end of the switch unit is connected with the first power supply positive end of the first signal port or the first power supply positive end of the second signal port; any second power supply positive end is connected between the switch unit and the load module, and the output end of the load module is connected to the input end of the first signal isolation module or the input end of the second signal isolation module.

In one embodiment, the switch unit includes a first switch and a second switch, and the load module includes a first load with a first set power and a second load with a second set power;

the first switch is connected in series with the first load, and the second switch is connected in series with the second load; the input end of the first switch is connected with the input end of the second switch, the output end of the first load is connected with the input end of the first signal isolation module, and the output end of the second load is connected with the input end of the second signal isolation module;

the second supply positive terminal of the first signal port is connected between the first switch and the first load, and the second supply positive terminal of the second signal port is connected between the second switch and the second load.

In one embodiment, the first switch and the second switch comprise a key switch or a toggle switch.

In one embodiment, the first load comprises a cement resistor R1 and a cement resistor R2, and the second load comprises a cement resistor R3 and a cement resistor R4 connected in parallel;

the second end of the cement resistor R1 is connected with the first end of the cement resistor R2, the first end of the cement resistor R1 is connected with the output end of the first switch, and the second end of the cement resistor R2 is connected with the input end of the first signal isolation module; the first end of the cement resistor R3 is connected with the output end of the second switch, and the second end of the cement resistor R4 is connected with the input end of the second signal isolation module.

In one embodiment, the signal isolation device further comprises a housing for enclosing the signal port module, the signal isolation device and the load device.

On the other hand, the embodiment of the invention also provides a test case, which comprises a metal case body, a metal bracket and a heat dissipation device, wherein the metal case body is provided with a ventilation hole and an internal cavity, the metal bracket is provided with a plurality of transversely-inserted guide rails, the metal bracket is arranged on the inner wall of the metal case body and is used for loading the POE switch test fixture, the heat dissipation device is arranged on the inner wall of the metal case body and is matched with the ventilation hole in position, and the heat dissipation device is used for dissipating heat of the POE switch test fixture under the power supply of an external power supply.

In one embodiment, the cooling device further comprises a temperature control device, wherein the temperature control device is arranged on the inner wall of the metal box body and is respectively and electrically connected with the heat dissipation device and the external power supply;

the temperature control device is used for regulating and controlling the power of the heat dissipation device according to the temperature of the POE switch test fixture.

In one embodiment, the heat dissipation device comprises at least one heat dissipation fan, the temperature control device comprises a temperature sensor and a controller, and the controller is electrically connected with the temperature sensor, the heat dissipation fan and the external power supply respectively.

In one embodiment, the dust-proof net is arranged on the metal box body, and the position of the dust-proof net is matched with that of the vent hole.

In another aspect, an embodiment of the present invention further provides a POE switch test device, including the test chassis and at least one POE switch test fixture.

In another aspect, an embodiment of the present invention further provides a POE switch test system, including a POE switch to be tested, a monitoring terminal, and the POE switch test device.

One of the above technical solutions has the following advantages and beneficial effects:

through signal port module, signal isolating device and load device's design, obtain and to be carried out full load test and switching function test to the POE switch of being surveyed simultaneously to and circuit structure's POE switch test fixture, thereby greatly reduced POE switch's test cost. But POE switch test fixture polylith combination uses, with the test equipment that test machine case is constituteed, can realize being surveyed the batch test of POE switch, and quick-witted case good heat dissipation, POE switch test fixture is pulled out and is inserted the convenience, but the production test cost of greatly reduced POE switch.

Drawings

Fig. 1 is a first schematic structural diagram of a POE switch test fixture in an embodiment;

fig. 2 is a second schematic structural diagram of a POE switch test fixture in an embodiment;

fig. 3 is a third schematic structural diagram of a POE switch test fixture in an embodiment;

fig. 4 is a fourth schematic structural diagram of a POE switch test fixture in an embodiment;

fig. 5 is a fifth schematic structural diagram of a POE switch test fixture in an embodiment;

FIG. 6 is a schematic diagram of a circuit configuration of a signal port and a load according to an embodiment;

FIG. 7 is a schematic diagram of a circuit structure of a network transformer according to an embodiment;

fig. 8 is a sixth schematic structural diagram of a POE switch test fixture in an embodiment;

fig. 9 is an overall schematic structural diagram of a POE switch test fixture in an embodiment;

FIG. 10 is a block diagram of a test chassis in one embodiment;

fig. 11 is a schematic structural diagram of POE switch test equipment in an embodiment;

fig. 12 is a diagram illustrating a first test example of a POE switch in an embodiment;

fig. 13 is a diagram illustrating a second test example of a POE switch in an embodiment;

fig. 14 is a schematic structural diagram of a POE switch test system in an embodiment.

Detailed Description

The POE switch test fixture, test chassis, device and system contents of the present invention will be described in detail with reference to the preferred embodiments and the accompanying drawings. It is to be understood that the following examples are illustrative only and are not intended to limit the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The POE switch can also provide far-end power supply when high-quality information transmission as a future new-generation main product, eliminates the need for extra sockets and wiring, directly supplies power to the Ethernet equipment through a network cable, reduces the complexity and cost of communication equipment wiring, and is gradually and greatly put into deployment in a communication system. However, in the process of implementing the technical solution of the present invention, the inventors found that: POE switch is in process of production, batch test has become the major link that influences its production efficiency, traditional POE switch test is the 24 mouthfuls of PSE test equipment who adopts outsourcing usually, the individual unit is high in price, during batch test POE switch, test equipment's spending is higher, greatly reduced the market competitiveness of POE switch product, thereby there is in research and development stage and batch production stage, the POE power supply and the higher problem of exchange performance required cost of POE switch product are verified in high-efficient high-quality test.

In view of the above problem, referring to fig. 1, an embodiment of the invention provides a POE switch test fixture 100, which includes a signal port module 12, a signal isolation device 14, and a load device 16. The signal isolation device 14 is connected to the signal port module 12. The load device 16 is connected in series between the signal port module 12 and the signal isolation device 14. The signal port module 12 is used for accessing the tested POE switch 20 and the monitoring terminal 30, and the monitoring terminal 30 monitors the data exchange state of the tested POE switch 20. The signal isolation device 14 is used for isolating an electrical signal in a network signal passing through the POE switch 20 under test, so that a data signal passes through the signal isolation device 14 and the signal port module 12. The load device 16 is used for providing a test load of the POE switch 20 under test.

It is understood that the POE switch 20 under test may be a POE switch in a development phase or a POE switch in a mass production phase, and the POE switch 20 under test may be a multi-port, for example, a 4-port, 8-port, 12-port and 24-port POE switch, and the POE switch 20 under test may generally read the voltage and current output to the load through its port, so that the power condition of the accessed load can be known through scaling. The network signal may be input by the monitoring terminal 30, and the monitoring terminal 30 may be a PC, an ethernet packet transceiver or other network testing instrument. The network signal after passing through the POE switch 20 under test can include both data signals and electrical signals, where the electrical signals can be used to power the load device 16. Load devices 16 may represent various types of remote devices in an actual networking application scenario.

The signal port module 12 may be a network signal access module composed of physical ports, for example, a network cable interface may be used. The signal isolation device 14 may be an isolation device including a device for isolating an electric signal and passing a data signal, and may be, for example, a mainstream network transformer. The load device 16 may be a device comprised of a device that is resistive or otherwise load-specific.

Specifically, the POE switch test fixture 100 can be respectively connected to the POE switch 20 to be tested and the monitoring terminal 30 through the signal port module 12, for example, a network cable connection is provided. Through an electric signal path and a data signal path which are formed by the signal port module 12, the signal isolation device 14 and the load device 16, a network signal which is output after the tested POE switch 20 passes through the load device 16, one path of the network signal can be led out by the signal port module 12, direct current power supply can be provided for the load device 16, and the full-load working state of the tested POE switch 20 is simulated; when the network signal got into signal isolating device 14, the electrical signal therein was kept apart to data signal can pass through signal isolating device 14 and signal port module 12, comes and goes to POE switch 20 under test and monitor terminal 30, thereby can test POE switch 20 under test's data interchange performance.

So, through using above-mentioned signal port module 12, the POE switch test fixture's 100 structure that signal isolating device 14 and load device 16 found, can be according to the load device 16 of the power that is surveyed the output power level apolegamy of POE switch 20, realize that the test is surveyed the data exchange performance of POE switch 20 simultaneously, the test is surveyed the full load working property of POE switch 20, circuit structure simplifies greatly, can satisfy the POE power supply and the production requirement of exchange performance of high-efficient high-quality test verification POE switch product. The production and test cost is greatly reduced.

Referring to fig. 2, in one embodiment, the signal port module 12 includes a first signal port 122 and a second signal port 124. The signal isolation device 14 includes a first signal isolation module 142 and a second signal isolation module 144. The first signal port 122 is connected to an input terminal of the first signal isolation module 142, an output terminal of the first signal isolation module 142 is connected to an output terminal of the second signal isolation module 144, the second signal port 124 is connected to an input terminal of the second signal isolation module 144, an input terminal of the load device 16 is connected to a positive power supply terminal of the first signal port 122 or to a positive power supply terminal of the second signal port 124, and an output terminal of the load device 16 is connected to an input terminal of the first signal isolation module 142 or to an input terminal of the second signal isolation module 144.

It is understood that the first signal port 122 and the second signal port 124 may be two port devices of the same configuration. The first signal isolation module 142 and the second signal isolation module 144 may also be two isolation devices with the same structure. The input terminal of the first signal isolation module 142 may be determined according to the structure of the first signal isolation module 142, and may include a plurality of functional pins on the input side. For example, when the device selected by the first signal isolation module 142 is a network transformer, the input terminals refer to the functional pins on the side where the primary coil of the network transformer is located, and the functional pins on the side where the secondary coil of the network transformer is located are referred to as the output terminals of the network transformer. Accordingly, the second signal isolation module 144 is understood in a similar manner. Generally, taking the connection between the first signal port 122 and the input end of the first signal isolation module 142 as an example, it is preferable that each functional pin of the first signal port 122 is respectively connected with a corresponding functional pin on the input end of the first signal isolation module 142, for example, a network cable interface in an actual application scenario is connected with a network transformer. The connection relationship between the second signal port 124 and the second signal isolation module 144 is understood in the same way.

Specifically, the load device 16 may obtain power supply by extracting a network signal from the first signal port 122, may obtain power supply by extracting a network signal from the second signal port 124, and may be connected to both the first signal port 122 and the second signal port 124. In the above connection, the load device 16 can obtain power supply when the POE switch 20 under test is connected from any signal port. The positive supply terminal may be, for example, an output pin of the power signal in each of the ports. As such, when a network signal enters from the first signal port 122 or the second signal port 124, the load device 16 is in the energized state in the accessed state. The load power of the load device 16 is usually set to the full load output power of the POE switch 20 under test of the set model, so that the full load working state of the POE switch 20 under test can be simulated, and the full load working performance of the POE switch 20 under test can be tested. Meanwhile, the network signal passing through the first signal isolation module 142 and the second signal isolation module 144, wherein the electrical signal will be isolated at the input end of the first signal isolation module 142 or the second signal isolation module 144 and fed to the ground end at the input end in the same way as the wire number passing through the load device 16, and the data signal therein can be transmitted to the monitoring terminal 30 through the first signal isolation module 142, the second signal isolation module 144, the first signal port 122 or the second signal port 124, so that the test of the data exchange function of the POE switch 20 under test can be performed.

Thus, through the connection structure of each port, each isolation module and the load device 16, the above test on the single output port of the tested POE switch 20 can be realized, and the test cost is low and the operation is simple and convenient.

In one embodiment, the first signal isolation module 142 and the second signal isolation module 144 are network transformers. Therefore, the circuit structure of the POE switch test fixture 100 can be simplified, and the manufacturing cost is effectively reduced.

Referring to fig. 3, in one embodiment, the load device 16 includes a switch unit 162 and a load module 164. The switch unit 162 and the load module 164 are connected in series. The supply plus terminals of the first and

second signal ports

122 and 124 each include a first supply plus terminal 1 and a second supply plus terminal 2. An input terminal of the switching unit 162 is connected to the first power supply plus terminal 1 of the first signal port 122 or the first power supply plus terminal 1 of the second signal port 124. Any second supply plus terminal 2 is connected between the switch unit 162 and the load module 164, and the output terminal of the load module 164 is connected to the input terminal of the first signal isolation module 142 or the input terminal of the second signal isolation module 144.

It is understood that the supply positive terminal of the first signal port 122 may include a first supply positive terminal 1 and a second supply positive terminal 2, and an output voltage of the first supply positive terminal 1 is not equal to an output voltage of the second supply positive terminal 2, for example, the output voltage of the first supply positive terminal 1 may be higher than the output voltage of the second supply positive terminal 2. The positive supply terminal of the second signal port 124 can be understood in the same way. When the switch unit 162 is in the off state, the load module 164 is not effectively connected to the power supply loop of the POE switch 20 under test, that is, the on state and the off state of the load module 164 can be switched by switching the on state and the off state of the switch unit 162. It should be noted that fig. 3 shows an alternative connection manner between the unit modules in the load device 16 and the signal ports, and the first power supply positive terminal 1 and the second power supply positive terminal 2 of the second signal port 124 are only schematic, and are not connection limitations on actual wiring. For example, the first supply plus terminal 1 is connected to a corresponding pin of the input terminal of the second signal isolation module 144 in the application, and the outgoing line in the figure is only an illustration that the input terminal of the switch unit 162 can be connected to the first supply plus terminal 1 of the second signal port 124. Wherein the solid line of the double arrow indicates a network signal transmission line, the dotted line of the double arrow indicates a data signal transmission line, and the solid line indicates a power signal transmission line.

Specifically, for example, when the output voltage of the first power supply positive terminal 1 of the first signal port 122 or the second signal port 124 is higher than the output voltage of the second power supply positive terminal 2, when the POE switch 20 under test is connected to the first signal port 122 and the second signal port 124, the output voltage of the second power supply positive terminal 2 of the signal port where the POE switch 20 under test is located is not enough to form a current path through the load module 164. When the switch unit 162 is closed, the output voltage of the first power supply positive terminal 1 of the signal port where the POE switch 20 to be tested is loaded on the load module 164, so that the load module 164 forms a current path and is connected to the power supply loop of the POE switch 20 to be tested, that is, a full load test of the POE switch 20 to be tested can be performed. So, can select the full load test of being surveyed POE switch 20 fast through switch element 162 and load module 164's setting, test operation is convenient and high-efficient.

Referring to fig. 4 to 7, in one embodiment, the switch unit 162 includes a first switch 1622 and a second switch 1624. The load module 164 includes a first load 1642 with a first set power and a second load 1644 with a second set power. The first switch 1622 is connected in series with a first load 1642, and the second switch 1624 is connected in series with a second load 1644. An input terminal of the first switch 1622 and an input terminal of the second switch 1624 are connected, i.e., to either one of the first supply plus terminals 1. An output terminal of the first load 1642 is connected to an input terminal of the first signal isolating module 142. An output terminal of the second load 1644 is connected to an input terminal of the second signal isolating module 144. The second supply plus terminal 2 of the first signal port 122 is connected between the first switch 1622 and the first load 1642. The second supply plus terminal 2 of the second signal port 124 is connected between the second switch 1624 and the second load 1644.

It can be understood that the switch unit 162 may include two switches, and the load module 164 may also include two loads correspondingly, and the first set power of the first load 1642 is not equal to the second set power of the second load 1644, that is, the load module 164 may provide load access of two powers to the POE switch 20 under test through the first switch 1622 and the second switch 1624, respectively. The specific values of the first set power and the second set power may be set according to the power of the output power class of the POE switch 20 under test, which is required to perform the full load test.

Specifically, the first load 1642 may be connected to the power supply loop of the POE switch 20 to be tested through the first switch 1622, so as to perform a full load test of the POE switch 20 to be tested, where the full load test corresponds to the first set power. Similarly, it is understood that the second load 1644 can be connected to the power supply loop of the POE switch 20 under test through the second switch 1624, so as to perform a full load test of the POE switch 20 under test corresponding to the second set power. For example, the output port supported by the POE switch 20 under test supports two power class outputs, such as 65W and 95W, the first set power may be 65W, and correspondingly, the second set power may be 95W. When the POE switch 20 under test needs to perform a full load test of 65W power class, the first switch 1622 may be closed to connect the first load 1642, that is, the test may be performed. Accordingly, when the POE switch 20 under test needs to perform a full load test at a power level of 95W, the second switch 1624 can be selectively closed to access the second load 1644. So, can carry out the fast switch load to the POE switch 20 under test that needs carry out different output power grades, carry out full load test, operating efficiency is higher.

In one embodiment, as shown in FIG. 5, the first load 1642 includes a cement resistance R1 and a cement resistance R2. The second load 1644 includes a cement resistor R3 and a cement resistor R4 connected in parallel. The second end of the cement resistor R1 is connected with the first end of the cement resistor R2. A first terminal of the cement resistor R1 is connected to the output terminal of the first switch 1622. A second terminal of the cement resistor R2 is connected to an input terminal of the first signal isolation module 142. A first terminal of the cement resistor R3 is connected to the output terminal of the second switch 1624. A second terminal of the cement resistor R4 is connected to an input terminal of the second signal isolation module 144.

It is understood that the first load 1642 may be composed of a cement resistor R1 and a cement resistor R2 with different or the same resistance in series, or in parallel, or may be directly composed of one cement resistor, as long as the composed first load 1642 has the required load power. The second load 1644 may be formed by connecting the cement resistor R3 and the cement resistor R4 with different or the same resistance in parallel, or in series, or directly formed by one cement resistor, as long as the formed second load 1644 has the required load power. The cement resistors described above may be replaced by other types of resistors as long as the required load power is obtained. For example, when the first set power required to be provided to the first load 1642 is 65W, the cement resistance R1 and the cement resistance R2 may be both cement resistances of 22 Ω (rated power 100W). When the second set power required to be provided to the second load 1644 is 95W, the cement resistance R3 and the cement resistance R4 may be both cement resistances of 60 Ω (rated power 100W). The above parameters such as the resistance value of each cement resistor can be selected or replaced according to the power of the output power class of the POE switch 20 under test, which is subjected to the full load test as required.

The POE switch test fixture 100 formed by the cement resistors, the switches and other devices is low in manufacturing cost and simple in circuit structure. Adopt cement resistance R1 and cement resistance R2 to constitute first load 1642 and adopt cement resistance R3 and cement resistance R4 to constitute second load 1644, can obtain better load heat dispersion, possess the effect of practicing thrift cost of manufacture and POE switch test fixture 100's less volume simultaneously, extensive applicability.

In one embodiment, the cement resistor R1, the cement resistor R2, the cement resistor R3 and the cement resistor R4 may be uniformly arranged on the pad, and copper is laid between the respective bottoms and the contact surface of the pad, so as to further improve the heat dissipation performance of each resistive load.

In one embodiment, the first switch 1622 and the second switch 1624 include, but are not limited to, a push button switch or a toggle switch. It is understood that the first switch 1622 and the second switch 1624 may be a key switch, a toggle switch, or other types of switches as long as the convenient and fast switching operation of the first load 1642 and the second load 1644 can be realized.

In one embodiment, the first signal port 122 and the second signal port 124 are both RJ-45 interfaces with indicator lights on the positive power supply terminals. The indicator light is used to indicate the voltage output status of the POE switch 20 under test and/or to indicate the access status of the load device 16.

Fig. 6 and 7 are schematic diagrams illustrating specific circuit structures of the signal ports, the load and the network transformer in an embodiment, wherein pins with the same name in the circuit structures of the parts represent the connection relationship of the pins. It is understood that the first signal port 122 and the second signal port 124 may each be an RJ-45 interface with an indicator light. The first power supply positive terminal 1 of the first signal port 122 and the second signal port 124 are connected with light emitting diodes, which can generally display different colors, for example, the first indication color is orange yellow, and the second indication color can be green. The first supply plus terminal 1 in each embodiment may be, for example, a POE + terminal in an RJ-45 interface, and the second supply plus terminal 2 may be, for example, a POE1+ terminal and a POE2+ terminal in the RJ-45 interface.

Specifically, taking the first signal port 122 as the RJ-45 interface 1 and the second signal port 124 as the RJ-45 interface 2 as an example, if the output end of the POE switch 20 to be tested is inserted into the RJ-45 interface 1 through the network cable, the POE is forced to output 53.5V voltage to light the LED lamp of the RJ-45 interface, a first indication color, for example, orange yellow, is displayed, and then the POE switch 20 to be tested is indicated to normally output the voltage at this time, so that the test can be performed. After that, the first switch 1622 is pressed, the LED lamp of the RJ-45 interface 1 displays a second indication color, for example, green, to indicate that the first load 1642 of 65W is connected for full load test, and the second switch 1624 is pressed, the LED lamp of the RJ-45 interface 2 displays a second indication color, for example, green, to indicate that the second load 1644 of 95W is connected for full load test. Therefore, the POE switch 20 to be tested can be judged to have the output voltage and the full-load test state by observing the color of each port, and the test is visual and convenient.

Referring to fig. 8 and 9, in one embodiment, the housing 19 is further included for enclosing the signal port module 12, the signal isolation device 14, and the load device 16. It will be appreciated that the housing 19 may be, but is not limited to, a square box housing, or other shapes and configurations, as long as the housing can securely carry and secure the various components of the signal port module 12, the signal isolation device 14, and the load device 16, thereby facilitating heat dissipation and convenient transportation, carrying, and use. Through 19 encapsulation of casing, can effectively reduce POE switch test fixture 100 part dispersion, avoid occupying the problem of too much space resource, the integrated level is high. It should be noted that fig. 9 is only a schematic entity diagram of the POE switch test fixture 100, and is not a limitation of a unique entity structure.

Referring to fig. 10, an embodiment of the invention further provides a test chassis 200, which includes a metal box 22 having a vent and an internal cavity, a metal bracket 24 having a plurality of transverse rails, and a heat dissipation device 26. The metal bracket 24 is installed on the inner wall of the metal box 22, and the metal bracket 24 is used for loading the POE switch test fixture 100 in the above embodiments. Heat abstractor dress 26 establishes on the inner wall of metal box 22 and matches with the ventilation hole position, and heat abstractor 26 is used for dispelling the heat to POE switch test fixture 100 under the power supply of external power source.

It is understood that the heat sink 26 may be, but is not limited to, a heat sink fan. The metal bracket 24 may be a bracket made of aluminum, iron, copper, or an alloy material, and the heat dissipation performance of the bracket may be improved by using the heat conductivity of the metal, and the specific material may be determined according to the requirements of the heat dissipation index, the manufacturing cost, the weight index of the test chassis 200, and the like. The metal case 22 can be understood similarly.

Specifically, the test chassis 200 may be loaded with a plurality of POE switch test fixtures 100. Each POE switch test fixture 100 can perform the above-mentioned full load test and data exchange function test on one output port of the POE switch under test. A plurality of POE switch test jigs 100 are loaded through the test chassis 200, and batch test can be performed on tested POE switches.

The metal bracket 24 and the metal box 22 may be connected by a fixed link, a detachable link, or an integrated link. The manner of attachment of the metal bracket 24 and the heat sink 26 can be similarly understood. The heat dissipation device 26 can be used for the POE switch test fixture 100 to be plugged and unplugged freely through the hollow metal bracket 24 in the test case 200, the use is convenient and fast, the technical requirements of full load testing and data link testing of POE high-power switch equipment are met simultaneously, the heat dissipation performance and the compatibility are good, the expandable capacity is large, and the manufacturing cost is low.

In one embodiment, test chassis 200 also includes temperature control device 28. The temperature control device 28 is mounted on the inner wall of the metal case 22, and the temperature control device 28 is electrically connected to the heat sink 26 and the external power source, respectively. The temperature control device 28 is used for regulating and controlling the power of the heat dissipation device 26 according to the temperature of the POE switch test fixture 100.

It is understood that the temperature control device 28 can be, but is not limited to, a single-chip control chip carrying a temperature sensor.

Specifically, the test chassis 200 may monitor the temperature of the POE switch test fixture 100 in real time by setting the temperature control device 28, so as to regulate the output power of the heat dissipation device 26 according to the temperature of the POE switch test fixture 100. For example, when the temperature of POE switch test fixture 100 is higher, temperature control device 28 can increase the output power of heat dissipation device 26, thereby accelerating the heat dissipation and cooling of POE switch test fixture 100 and avoiding burning out. When the temperature of the POE switch test fixture 100 is low, the control can be performed reversely. Therefore, the output power of the heat dissipation device 26 can be dynamically controlled by the temperature control device 28, thereby improving heat dissipation performance and effectively reducing energy consumption.

In one embodiment, the heat dissipation device 26 includes at least one heat dissipation fan, and the temperature control device 28 includes a temperature sensor and a controller electrically connected to the temperature sensor, the heat dissipation fan, and an external power source, respectively.

It can be understood that, in the test chassis 200, one or more than one number of heat dissipation fans may be installed to dissipate heat of the POE switch test fixture 100. For example, the two lateral sides of the test chassis 200 are respectively provided with a heat dissipation fan with the same impeller direction, so as to form air draft and air suction effects and improve the heat dissipation rate. The specific number of the heat dissipation fans may be determined according to the size of the test chassis 200 and the number of the POE switch test fixtures 100 inserted. The controller may be, but is not limited to, a single chip or a PLC programmable controller.

Specifically, the temperature sensor through temperature control device 28 detects the temperature of POE switch test fixture 100 in real time, and sends for the controller to the controller can control the rotational speed of each radiator fan motor according to the temperature height, reaches the effect of radiating rate dynamic control. And the heat dissipation performance is improved, and meanwhile, the energy consumption is effectively reduced.

In one embodiment, the test chassis 200 further includes a dust screen 29 mounted on the metal case 22, the dust screen 29 matching the position of the vent holes. It can be understood that the dust screen 29 may be a metal dust screen or a plastic dust screen, and may be determined according to the heat dissipation performance, the manufacturing cost, and the like of the test chassis 200; the shape of the vent hole can be, but is not limited to, a circle or a square, and the specific shape can be determined according to the shape of the vent hole. By arranging the dust screen 29, a large amount of dust can be prevented from entering the test case 200 for control, and the test and the heat dissipation performance are prevented from being influenced.

Referring to fig. 11 to fig. 13, an embodiment of the invention further provides a POE switch test apparatus 300, including the test chassis 200 and at least one POE switch test fixture 100.

It can be understood that the test chassis 200 and the POE switch test fixture 100 can be used in a matching manner, for example, a certain number of POE switch test fixtures 100 are fixedly loaded on the test chassis 200. Thus, the above test can be rapidly performed through the set of POE switch test equipment 300. The POE switch test equipment 300 has low manufacturing cost, high test efficiency and good expandability.

For example, as shown in fig. 12, when a single POE switch 20 to be tested is tested, a scenario where ports of the POE switch 20 to be tested are not in the same local area network (VLAN) is shown. Each port of the POE switch 20 under test can be connected to any signal port of a POE switch test fixture 100 by a network cable (e.g., a double-arrow line in the figure), and the other signal port is connected to a monitoring terminal 30, such as a PC or an ethernet packet transceiver, through the network cable for testing. For example when being surveyed POE switch 20 and having 8 ports, can choose for use 8 POE switch test fixture 100, insert 8 POE switch test fixture 100 respectively promptly and to 24 on the metal bracket 8 violently insert the guide rail can.

For another example, for a scenario where the port of the POE switch 20 to be tested is in the same local area network (VLAN), one port of the POE switch 20 to be tested may be connected to one signal port of the POE switch test fixture 100 through a network cable, and the other ports of the POE switch 20 to be tested are sequentially connected to the signal ports of the POE switch test fixtures 100 through network cables. Specifically, when the POE switch 20 to be tested has 8 ports, for example, the test can be performed in the connection manner shown in fig. 13:

ports

1 and 2, 3 and 4, 5 and 6, 7 and 8 are arranged in the same local area network (VLAN). Thus, the test can be performed by inserting 5 POE switch test jigs 100 into 5 cross-insertion guide rails on the metal bracket 24. The test process may be, for example, a test procedure from the PC or the ethernet packet transmitter to the PC or the ethernet packet transmitter at the other end, where the packet splicing (ping) test may test the ethernet link performance of the POE switch 20 under test; by adopting the POE switch test equipment 300 including the POE switch test fixture 100, the purpose of testing the ethernet data exchange performance and the power signal load capacity can be achieved at the same time.

Referring to fig. 14, an embodiment of the present invention further provides a POE switch test system 400, including the POE switch 20 to be tested, the monitoring terminal 30 and the POE switch test device 300 in the foregoing embodiments.

Through using foretell POE switch test equipment 300, POE switch test system 400 can test POE switch 20 under test in batches, can reduce POE switch 20 under test's production test cost by a wide margin.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a POE switch test fixture which characterized in that includes: the device comprises a first signal port, a second signal port, a first signal isolation module, a second signal isolation module, a switch unit and a load module;

the first signal port is connected with the input end of the first signal isolation module, the output end of the first signal isolation module is connected with the output end of the second signal isolation module, the second signal port is connected with the input end of the second signal isolation module, and the switch unit is connected with the load module in series; the power supply positive terminals of the first signal port and the second signal port respectively comprise a first power supply positive terminal and a second power supply positive terminal;

the input end of the switch unit is connected with the first power supply positive end of the first signal port or the first power supply positive end of the second signal port, any second power supply positive end is connected between the switch unit and the load module, and the output end of the load module is connected with the input end of the first signal isolation module or the input end of the second signal isolation module;

the load module comprises a first load with first set power and a second load with second set power;

2. The POE switch test fixture of claim 1, wherein the first signal port and the second signal port are RJ-45 interfaces of which the power supply positive terminal is provided with an indicator lamp, and the indicator lamp is used for indicating a voltage output state of the POE switch to be tested and/or indicating an access state of the load module.

3. The POE switch test fixture of claim 1, wherein the first signal isolation module and the second signal isolation module are both network transformers.

4. The POE switch test fixture of claim 1, wherein the first switch and the second switch comprise a key switch or a toggle switch.

5. The POE switch test fixture of claim 1, wherein the first load comprises a cement resistor R1 and a cement resistor R2, and the second load comprises a cement resistor R3 and a cement resistor R4 connected in parallel;

6. The POE switch test fixture of any one of claims 1-5, further comprising a housing for enclosing the signal port module, the signal isolation device, and the load device.

7. The utility model provides a test machine case, its characterized in that, including the metal box of seting up the ventilation hole and being formed with inside cavity, be provided with a plurality of metal bracket and the heat abstractor of violently inserting the guide rail, metal bracket installs on the inner wall of metal box, metal bracket is used for loading POE switch test fixture as in any one of claims 1 to 6, heat abstractor installs on the inner wall of metal box and with ventilation hole position matches, heat abstractor is used for right under external power source's the power supply POE switch test fixture dispels the heat.

8. The testing cabinet of claim 7, further comprising a temperature control device, wherein the temperature control device is mounted on an inner wall of the metal box body, and the temperature control device is electrically connected to the heat dissipation device and the external power supply respectively;

9. The test cabinet of claim 8, wherein the heat dissipation device comprises at least one heat dissipation fan, the temperature control device comprises a temperature sensor and a controller, and the controller is electrically connected to the temperature sensor, the heat dissipation fan and the external power supply respectively.

10. The test chassis of claim 7, further comprising a dust screen mounted on the metal box, the dust screen matching the position of the vent.

11. POE switch test equipment, characterized in that, includes the test chassis of any one of claims 7 to 10 and at least one POE switch test fixture of any one of claims 1 to 6.

12. A POE switch test system comprising a POE switch under test, a monitoring terminal, and the POE switch test apparatus of claim 11.