CN207460210U - Interchanger aging gauge - Google Patents
Interchanger aging gauge Download PDFInfo
- Publication number
- CN207460210U CN207460210U CN201721558384.4U CN201721558384U CN207460210U CN 207460210 U CN207460210 U CN 207460210U CN 201721558384 U CN201721558384 U CN 201721558384U CN 207460210 U CN207460210 U CN 207460210U
- Authority
- CN
- China
- Prior art keywords
- circuit
- interchanger
- signal
- aging
- measured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model is related to a kind of interchanger aging gauges,Including signal receiving circuit,Demultiplexing circuit,Interchanger,Power conversion circuit and load circuit,Interchanger to be measured is connected with signal receiving circuit,Signal receiving circuit is connected with demultiplexing circuit,Demultiplexing circuit is connected respectively with interchanger and power conversion circuit,Power conversion circuit is connected with load circuit,Signal receiving circuit receives the input signal of interchanger to be measured,The input signal of interchanger to be measured is separated into voltage signal and ethernet signal by demultiplexing circuit,Interchanger is communicated by the ethernet signal isolated with interchanger to be measured foundation,The voltage signal that power conversion circuit adjusting is isolated,Load circuit receives the voltage signal after adjusting,Such interchanger aging gauge can realize that treating test cross changes planes progress with load burn-in test,Improve interchanger shipment stability,So as to reduce repair rate.
Description
Technical field
The utility model is related to switch test technical field, more particularly to a kind of interchanger aging gauge.
Background technology
With information-based and digital times propulsion, interchanger is widely used in each communication equipment, the city of interchanger
Demand increases year by year, at the same time, also higher and higher to the quality requirement of interchanger, especially multiport number, high-power
Under load and long-time hot environment, to its quality requirement higher.
After once equipment installs, if there is degradation failure in interchanger, it will cause equipment that can not work normally,
Equipment utilization and supervision effect are just lost, so considering from the quality and performance perspective of product entirety, the aging to interchanger
Test just seems more important.
Traditional burn-in test that carried out to interchanger is to connect wireless aps (Access Point, access to interchanger to be measured
Point), network shooting head etc., interchanger to be measured can power out i.e. by test, can be with shipment, and this test method is not true
Burn-in test is carried out to interchanger in positive meaning, the shipment stability for causing interchanger is poor, and repair rate is higher.
Utility model content
Based on this, it is necessary in view of the above-mentioned problems, interchanger shipment stability can be improved, reduce repair rate by providing one kind
Interchanger aging gauge.
A kind of interchanger aging gauge, including：
The signal receiving circuit of interchanger input signal to be measured is received, interchanger input signal to be measured is separated into voltage letter
Number and ethernet signal demultiplexing circuit, based on ethernet signal and the interchanger that communicates of interchanger to be measured foundation, adjusting
The power conversion circuit of voltage signal and the load circuit for receiving the voltage signal after adjusting；
Interchanger to be measured is connected with signal receiving circuit, and signal receiving circuit is connected with demultiplexing circuit, Signal separator
Circuit is connected respectively with interchanger and power conversion circuit, and power conversion circuit is connected with load circuit.
Above-mentioned interchanger aging gauge, including signal receiving circuit, demultiplexing circuit, interchanger, power conversion circuit
And load circuit, interchanger to be measured are connected with signal receiving circuit, signal receiving circuit is connected with demultiplexing circuit, signal
Split circuit is connected respectively with interchanger and power conversion circuit, and power conversion circuit is connected with load circuit, and signal receives
Circuit receives the input signal of interchanger to be measured, and the input signal of interchanger to be measured is separated into voltage signal by demultiplexing circuit
And ethernet signal, interchanger are communicated by the ethernet signal isolated with interchanger to be measured foundation, power conversion circuit tune
The voltage signal isolated is saved, load circuit receives the voltage signal after adjusting, and such interchanger aging gauge can be realized
It treats test cross and changes planes progress with burn-in test is carried, interchanger shipment stability is improved, so as to reduce repair rate.
Description of the drawings
Fig. 1 is the structure diagram of interchanger aging gauge in one embodiment；
Fig. 2 is the circuit diagram of interchanger aging gauge in one embodiment；
Fig. 3 is the structure diagram of interchanger aging gauge in a concrete application embodiment；
Fig. 4 is that power supply extracts the circuit diagram of circuit in interchanger aging gauge in a concrete application embodiment；
Fig. 5 is the circuit diagram of load circuit in interchanger aging gauge in a concrete application embodiment.
Specific embodiment
As shown in Figure 1, a kind of interchanger aging gauge, including：
The signal receiving circuit 100 of interchanger input signal to be measured is received, interchanger input signal to be measured is separated into electricity
The demultiplexing circuit 200 of signal and ethernet signal is pressed, exchanging for communication is established with interchanger to be measured based on ethernet signal
Machine 300 adjusts the power conversion circuit 400 of voltage signal and receives the load circuit 500 of the voltage signal after adjusting；
Interchanger to be measured is connected with signal receiving circuit 100, and signal receiving circuit 100 connects with demultiplexing circuit 200
It connects, demultiplexing circuit 200 is connected respectively with interchanger 300 and power conversion circuit 400, and power conversion circuit 400 is with bearing
Circuit 500 is carried to connect.
Signal receiving circuit 100 is used for receiving interchanger input signal to be measured, specifically, as shown in Fig. 2, connecting interface J2
The input signal of interchanger to be measured is received, interchanger input signal to be measured includes ethernet signal and DC supply signal.
The input signal of interchanger to be measured is separated into voltage signal and ethernet signal by demultiplexing circuit 200, specifically
Ground, as shown in Fig. 2, the input signal of interchanger to be measured is by the first terminal of the transformer T1 in Fig. 2, third terminal, the 6th
The ethernet signal that terminal and the 8th terminal are separated, the input signal of interchanger to be measured is by two poles in Fig. 2
The DC supply signal that pipe unit D2, D3 and capacitance C5 are separated.
Interchanger 300 is communicated by the ethernet signal isolated with interchanger to be measured foundation, for example can pass through exchange
The Ethernet transmission circuit of machine communicates with the Ethernet transmission circuit of interchanger to be measured, the Ethernet transmission circuit of interchanger
A signal is sent, the Ethernet transmission circuit of interchanger to be measured receives the signal.
Power conversion circuit 400 adjusts the voltage signal isolated, and specifically, for example the cut-in voltage of switch pipe unit is
Direct current 12V, and the voltage signal separated from interchanger input signal to be measured is 48V DC voltages, then power conversion electricity
It is 12V DC voltage that road, which is needed 48V DC voltage conversions, for example can be realized by DC decompression chopper circuit.
Load circuit 500 receive adjust after voltage signal, specifically, load circuit can include switching tube, resistance and
Switch, wherein, switching tube includes control terminal, first end and second end；The control terminal of switching tube is connected with power conversion circuit, is opened
The first end for closing pipe is connected with resistance, and resistance is connected with switch, the second end ground connection of switching tube, so can when switching tube turns on
It is non-essential to select different size of load by switching, there can be multiple load circuits, can so be treated simultaneously to multiple
Test cross, which is changed planes, to be tested.More specifically, load circuit further includes radiator and resistor, and one end of radiator passes through resistance
Device is connected with switching the first end of pipe unit, and the other end of radiator is connected with switching the first end of pipe unit, passes through radiator
It can radiate to interchanger aging gauge, be unlikely to excessively high to ensure to carry out temperature when long-time is tested.
Above-mentioned interchanger aging gauge, including signal receiving circuit 100, demultiplexing circuit 200, interchanger 300, work(
Rate translation circuit 400 and load circuit 500, interchanger to be measured are connected with signal receiving circuit 100, signal receiving circuit 100
It being connected with demultiplexing circuit 200, demultiplexing circuit 200 is connected respectively with interchanger 300 and power conversion circuit 400,
Power conversion circuit 400 is connected with load circuit 500, and signal receiving circuit 100 receives the input signal of interchanger to be measured, signal
The input signal of interchanger to be measured is separated into voltage signal and ethernet signal by split circuit 200, and interchanger 300 passes through separation
The ethernet signal gone out communicates with interchanger to be measured foundation, and power conversion circuit 400 adjusts the voltage signal isolated, load electricity
Voltage signal after the reception adjusting of road 500, such interchanger aging gauge can realize that treating test cross changes planes progress band load always
Change test, interchanger shipment stability is improved, so as to reduce repair rate.
In one embodiment, interchanger aging gauge, which further includes, judges whether the output voltage of interchanger to be measured is default
The signal processing circuit of value, signal processing circuit are connected with demultiplexing circuit.More specifically, signal processing circuit is additionally operable to
When the output voltage of interchanger to be measured is by preset value, judge whether the power that interchanger to be measured connects load is default threshold
Value, signal processing circuit are connected respectively with demultiplexing circuit and load circuit.Wherein, signal processing circuit can include
TPs23754 controls chip.
In one embodiment, interchanger aging gauge further includes current foldback circuit, and power conversion circuit passes through overcurrent
Protection circuit is connected with signal processing circuit, and current foldback circuit plays the electric current of protection interchanger aging gauge in a certain range
It is interior, prevent the excessive damage for causing interchanger aging gauge of electric current.
In one embodiment, interchanger aging gauge further includes power supply extraction circuit, and demultiplexing circuit passes through power supply
Extraction circuit is connected with power conversion circuit, because POE (Power Over Ethernet, active Ethernet) switch protocol is advised
Fixed, the power supply mode of POE power supplys is either mode A passes through 1 foot of RJ45 interfaces, 2 feet, 3 feet and 6 feet or B moulds
Formula is by 4 feet of RJ45 interfaces, 5 feet, 7 feet and 8 feet, in order to which POE interchangers can normal work under both power supply modes
Make, can circuit be extracted by power supply and carry out taking electricity, as shown in Fig. 2, power supply extraction circuit can not only be supplied with automatic identification mode A
Electricity and B-mode power supply, moreover it is possible to the positive and negative wrong of polarity of calibration power supply.Nominally 1 foot of RJ45,2 feet or 4 feet, 5 feet
Transmission be 48V-55V positive voltage, and 3 feet of RJ45,6 feet or 7 feet, 8 feet transmission be 48V-55V negative voltage, such as
Fruit there is no this polarity correction circuit, and when POE exchanger powers circuit is reversed by electric power polarity, interchanger can be caused old
The circuit of change gauge is breakdown and causes to be unable to proper testing.
In one embodiment, interchanger aging gauge further includes current rectifying and wave filtering circuit, and power conversion circuit passes through rectification
Filter circuit is connected with load circuit, and it is steady that current rectifying and wave filtering circuit is transformed into voltage to the DC circuit that power-varying circuitry obtains
DC voltage fixed, that ripple is small is supplied to load circuit.
In one embodiment, interchanger aging gauge further includes power supply, and power supply is connected with interchanger, for interchanger just
Often work provides power supply.
In a concrete application embodiment, as shown in figure 3, interchanger aging gauge includes input circuit, Ethernet is handed over
It changes planes, demultiplexing circuit, power supply extraction circuit, power conversion circuit, current rectifying and wave filtering circuit, load circuit, TPs23754 cores
Piece integrated circuit and signal receiving circuit, wherein, input circuit provides DC power supply for Ethernet switch, and signal receives electricity
Road can be ethernet signal output circuit, and load circuit can include power switching circuitry and resistive load circuit；Input electricity
Road, Ethernet switch, demultiplexing circuit, ethernet signal output circuit are sequentially connected, ethernet signal output circuit, letter
Number split circuit, TPs23754 chip integrated circuits are sequentially connected, TPs23754 chip integrated circuits, power supply extraction circuit, work(
Rate translation circuit, current rectifying and wave filtering circuit, power control circuit, resistive load circuit are sequentially connected, TPs23754 integrated chips electricity
Road and power conversion circuit dual signal connecting path, there is overcurrent guarantor between power conversion circuit and TPs23754 chip integrated circuits
Protection circuit, current rectifying and wave filtering circuit pass sequentially through sample circuit and regulator circuit and are connected with TPs23754 chip integrated circuits, power
Control circuit control resistive load increases or reduces power and is connected with TPs23754 chip integrated circuits, power supply extraction circuit
Output circuit is provided for polarity correction power supply, input circuit provides DC power supply, Ethernet switch is made to work.
It is worked with direct current 12V power drives Ethernet switch, then with twisted-pair cable by interchanger aging gauge and POE to be measured
Interchanger connects, and POE interchangers to be measured send a light current and detect pulse voltage to ethernet signal output circuit, then pass through
The voltage signal isolated is sent to TPs23754 chip integrated circuits, TPs23754 chip integrated circuits by demultiplexing circuit
The voltage signal received is compared, judges whether the equipment that POE interchangers to be measured are connect is standard PD (Powered
Device, receiving end equipment) product, and will determine that result is back to POE interchangers to be measured, if detecting the voltage letter at its PD end
Number in preset threshold range, then it is assumed that be standard PD products, POE power supply for exchange to be measured drives current production；It is conversely, to be measured
POE interchangers, which will not power, damages current connected equipment.It is standard PD products when detecting the equipment that currently connects, treats
Survey POE interchangers are issued by the classification pulse voltage of a 20V/100ms to ethernet signal output circuit, then through signal point
From circuit to TPs23754pwp chip integrated circuits, judge whether the bearing power that POE interchangers to be measured are connect reaches default
Power adjusts bearing power.
POE interchangers to be measured provide the voltage of the 48V-55V of standard according to the bearing power size of connected equipment to ether
Net signal output apparatus, after demultiplexing circuit network filtering after bridge heap CR1 and CR2 correction polarity as shown in Figure 4,
Voltage is switched to direct current 12V through transformer T1, after rectified filtering power control circuit is driven to open load circuit, when J2 is received
To POE interchangers to be measured ethernet signal and 48V-55V DC power signals mixed signal after, pass through Signal separator electricity
Ethernet signal first is separately separated out by road from network filter, to be tested ethernet signal and to interchanger
Carry out long-time burn-in test.When testing ethernet signal directly ethernet test can be connected to from J1 by cable
Equipment is tested or two Ethernet output circuits are directly connected to carry out loop burn-in test by a cable, and is not had to
Worry that is connect is non-PD load equipments and damages test equipment.The 48-55V voltages that power supply extraction circuit obtains, provide all the way
To TPs23754 master chips as its start operating voltage, be in addition supplied to all the way power conversion circuit main transformer T1 just
Grade side.After TPs23754 obtains the startup operating voltage of 48V-55V, generate pulse width waveform and remove driving power translation circuit
Metal-oxide-semiconductor Q1, power MOS pipe Q1 generate delay protection and prevent that moment band load power is excessive under the control of pulse width waveform
Effect, so as to by 48-55V fixation DC voltage cut into amplitude be equal to input voltage amplitude pulse voltage, then pass through again
The main transformer T1 of power conversion circuit is electromagnetically coupled to primary side, and the high-frequency ac voltage that primary side is coupled to is filtered by rectification
Wave circuit is converted, and is transformed into the small DC voltage of voltage stabilization, ripple and is supplied to power switching circuitry, thus can root
According to needing to select the load-carrying size of POE interchangers institute to be measured by the power switching circuitry on interchanger aging gauge, such as
Shown in Fig. 5, closure switch SW13 obtains the 12W load agings product to be measured for meeting IEEE802.3at standards, closure switch
SW13 and SW14 acquisitions meet the 21W load agings product to be measured of IEEE802.3at standards, and closure switch SW13 and SW14 are obtained
The 30W load agings product to be measured for meeting IEEE802.3at standards is taken, including the power 3W of fan J5.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of interchanger aging gauge, which is characterized in that including：
The signal receiving circuit of interchanger input signal to be measured is received, the interchanger input signal to be measured is separated into voltage letter
Number and ethernet signal demultiplexing circuit, exchanging of communicating is established with the interchanger to be measured based on the ethernet signal
Machine adjusts the power conversion circuit of the voltage signal, receives the load circuit of the voltage signal after adjusting；
Interchanger to be measured is connected with the signal receiving circuit, and the signal receiving circuit is connected with the demultiplexing circuit,
The demultiplexing circuit is connected respectively with the interchanger and the power conversion circuit, the power conversion circuit and institute
State load circuit connection.
2. interchanger aging gauge according to claim 1, which is characterized in that the load circuit includes switching tube, electricity
Resistance and switch, wherein, the switching tube includes control terminal, first end and second end；
The control terminal of the switching tube is connected with the power conversion circuit, and the first end of the switching tube connects with the resistance
It connects, the resistance is connected with the switch, the second end ground connection of the switching tube.
3. interchanger aging gauge according to claim 2, which is characterized in that the load circuit further include radiator and
Resistor, one end of the radiator are connected by the resistor with the first end of the switch pipe unit, the radiator
The other end with it is described switch pipe unit first end be connected.
4. interchanger aging gauge according to claim 1, which is characterized in that further include and judge the interchanger to be measured
Output voltage whether be preset value signal processing circuit, the signal processing circuit is connected with the demultiplexing circuit.
5. interchanger aging gauge according to claim 4, which is characterized in that the signal processing circuit is additionally operable to work as institute
State the output voltage of interchanger to be measured by preset value when, judge whether the power that the interchanger to be measured connects load is default
Threshold value, the signal processing circuit are connected respectively with the demultiplexing circuit and the load circuit.
6. interchanger aging gauge according to claim 4 or 5, which is characterized in that the signal processing circuit includes
TPs23754 controls chip.
7. interchanger aging gauge according to claim 4 or 5, which is characterized in that current foldback circuit is further included, it is described
Power conversion circuit is connected by the current foldback circuit with the signal processing circuit.
8. interchanger aging gauge according to claim 1, which is characterized in that further include power supply extraction circuit, the letter
Number split circuit extracts circuit by the power supply and is connected with the power conversion circuit.
9. interchanger aging gauge according to claim 1, which is characterized in that further include current rectifying and wave filtering circuit, the work(
Rate translation circuit is connected by the current rectifying and wave filtering circuit with the load circuit.
10. interchanger aging gauge according to claim 1, which is characterized in that further include power supply, the power supply with it is described
Interchanger connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721558384.4U CN207460210U (en) | 2017-11-21 | 2017-11-21 | Interchanger aging gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721558384.4U CN207460210U (en) | 2017-11-21 | 2017-11-21 | Interchanger aging gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207460210U true CN207460210U (en) | 2018-06-05 |
Family
ID=62277357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721558384.4U Active CN207460210U (en) | 2017-11-21 | 2017-11-21 | Interchanger aging gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207460210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116139A (en) * | 2018-07-16 | 2019-01-01 | 深圳市吉祥腾达科技有限公司 | A kind of PoE interchanger band of low cost carries the ageing testing method of PD |
| CN109510741A (en) * | 2019-01-11 | 2019-03-22 | 深圳市菲菱科思通信技术股份有限公司 | Switch test jig |
-
2017
- 2017-11-21 CN CN201721558384.4U patent/CN207460210U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116139A (en) * | 2018-07-16 | 2019-01-01 | 深圳市吉祥腾达科技有限公司 | A kind of PoE interchanger band of low cost carries the ageing testing method of PD |
| CN109510741A (en) * | 2019-01-11 | 2019-03-22 | 深圳市菲菱科思通信技术股份有限公司 | Switch test jig |
| CN109510741B (en) * | 2019-01-11 | 2024-04-12 | 深圳市菲菱科思通信技术股份有限公司 | Switch test fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101124772B (en) | System for providing power over communication cable having mechanism for determining resistance of communication cable | |
| KR101559885B1 (en) | Power over ethernet on data pairs and spare pairs | |
| CN101232384B (en) | Method and device for testing switch with Ethernet power supply function | |
| US7685440B2 (en) | Switch with fully isolated power sourcing equipment control | |
| CN207460210U (en) | Interchanger aging gauge | |
| CN104378213B (en) | The method of testing and device of a kind of POE network communication equipments | |
| CN102984024B (en) | Analogue loading device, POE port test system and method | |
| CN108476141B (en) | Power over ethernet instrument, system and method | |
| CN103746461B (en) | Wireless power receiver circuit and its method for measurement available power | |
| EP3414812B1 (en) | Apparatus, system and method for power extraction | |
| CN108919002A (en) | A kind of test macro of direct-current charging post | |
| CN207599948U (en) | Low-tension supply power supply circuit and frequency-conversion air-conditioning system | |
| CN102123034A (en) | Method and device for performing high voltage and low voltage selective power supply by utilizing power over Ethernet (POE) system | |
| CN101887085B (en) | Zinc oxide arrester DC characteristic testing device and method | |
| CN110456160A (en) | Super-pressure three-phase transformer D.C. resistance test method and test device | |
| CN104515589A (en) | method and system for testing air conditioner electric device | |
| CN110021975A (en) | A kind of batter-charghing system and its input power current automatic adaptation method | |
| CN204009447U (en) | Be applied to the load automatic switch circuit of current detecting and the equipment that belt current detects | |
| CN115333388A (en) | Rectifier module switching method, device, terminal and storage medium | |
| CN201345616Y (en) | Auxiliary output circuit of switch power supply | |
| CN105372617A (en) | Three-phase capacitor type voltage transformer error integral verification method | |
| CN206878842U (en) | POE equipment test fixtures | |
| CN205510098U (en) | Novel poE ethernet switch test and ageing equipment | |
| CN209134431U (en) | Power supply unit and system | |
| CN208384025U (en) | A kind of test macro of direct-current charging post |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |