CN109995425A - A kind of method and fitting device of test equipment PORT COM - Google Patents
A kind of method and fitting device of test equipment PORT COM Download PDFInfo
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- CN109995425A CN109995425A CN201711490092.6A CN201711490092A CN109995425A CN 109995425 A CN109995425 A CN 109995425A CN 201711490092 A CN201711490092 A CN 201711490092A CN 109995425 A CN109995425 A CN 109995425A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/073—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an out-of-service signal
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Abstract
Disclosed herein is the methods and fitting device of a kind of test equipment PORT COM.The fitting device of the test equipment PORT COM includes: power module, control signal testing module and link block；The power module, for receiving power supply signal from one group of power signal line and being at least the control signal testing module for power supply using the power supply signal；The control signal testing module carries out logical process to the control signal, the control signal after the logical process is returned to the equipment after receiving the control signal that equipment exports；The link block, for coupling the fitting device and device talk port in a manner of pluggable.The technical solution of this paper can be realized the signal testing to pluggable PORT COM, at low cost, and test flexibility is high.
Description
Technical field
The present invention relates to technical field of photo communication more particularly to a kind of methods and tooling of test equipment PORT COM
Device.
Background technique
With the continuous development of optical communication technique, optical transport rate is constantly promoted, and uses 40G (transmission rate 40Gbps)
The communication apparatus (hereinafter referred to as equipment) and matching used 40G optical module of port are widely used in light communication system.
QSFP (Quad Small Form-factor Pluggable, four-way compact package are pluggable) or QSFP+ optical module, rely on
Its simple for structure, port and wiring density be high, advantage at low cost in 40G transmission field in occupation of critical role.And conduct
Using the equipment of the port QSFP or QSFP+, the test of port is become for an extremely important and essential job.
The golden hand that Fig. 1 shows a kind of interface line of the port QSFP or QSFP+ of equipment and equipment is connect with optical module
Refer to pin position, using optical mode Block direction as benchmark, differential data input signal line is successively: Rx0p, Rx0n, Rx1p,
Rx1n, Rx2p, Rx2n, Rx3p, Rx3n.Differential data output signal line is successively: Tx0p, Tx0n, Tx1p, Tx1n, Tx2p,
Tx2n, Tx3p, Tx3n.Control input signal cable is successively: mode select signal (ModeselL, low level are effective), low-power consumption
Selection signal (LPMode), reset signal (ResetL, low level are effective).Control output signal line is successively: optical module is in place
Signal (ModPrsL, low level are effective), interrupt signal (IntL, low level are effective).IIC(Inter-Integrated
Circuit, IC bus) control bus includes: data line SDA and clock line SCL.Power supply line is successively: VCC,
VccTX, VccRX.Ground line is: GND.
The port QSFP+ of equipment is tested using QSFP or QSFP+ optical module in the related technology, still, because of light
Module needs to carry out optical signal prosessing (comprising high speed optoelectronic conversion and electrooptic conversion module and igh-speed wire-rod production line part), institute
With higher cost.
Summary of the invention
Technical problem to be solved by the invention is to provide the method and fitting device of a kind of test equipment PORT COM, energy
Enough signal testings realized to pluggable PORT COM, at low cost, test flexibility is high.
According to the one aspect of the application, the embodiment of the present invention provides a kind of fitting device of test equipment PORT COM,
It include: power module, control signal testing module and link block；
The power module, for receiving power supply signal from one group of power signal line and utilizing the power supply signal at least
For the control signal testing module for power supply；
The control signal testing module, for receive equipment output control signal after, to the control signal into
Control signal after the logical process is returned to the equipment by row logical process；
The link block, for coupling the fitting device and device talk port in a manner of pluggable.
According to further aspect of the application, the embodiment of the present invention provides a kind of method of test equipment PORT COM, answers
For the equipment with the PORT COM, comprising:
Control signal is sent to the fitting device by control signal output line, is connect from corresponding control signal input line
Receive the control signal that the fitting device returns；
Whether judgement the control signal received and meets scheduled logical relation between the control signal of transmission, according to sentencing
Disconnected result determines whether the control link of the PORT COM is normal.
Compared with the relevant technologies, a kind of method and tooling dress of test equipment PORT COM provided in an embodiment of the present invention
It sets, the fitting device includes: power module, control signal testing module and link block；The power module is used for from one
Power supply signal is received on group power signal line and is at least the control signal testing module for power supply, institute using the power supply signal
After stating the control signal that control signal testing module is used to receive equipment output, logical process is carried out to the control signal,
Control signal after the logical process is returned into the equipment；The link block is used for the coupling in a manner of pluggable
Connect the fitting device and device talk port.The equipment by link block and the fitting device coupling after, pass through to
The fitting device sends signal, and detects whether the signal that the fitting device received returns meets test logic, energy
Enough signal testings realized to pluggable PORT COM, at low cost, test flexibility is high.
Detailed description of the invention
Fig. 1 is the signal wire schematic diagram of the port QSFP or QSFP+ in the prior art；
Fig. 2 is a kind of fitting device structural schematic diagram of test equipment PORT COM of the embodiment of the present invention 1；
Fig. 3 is the fitting device structural schematic diagram of another test equipment PORT COM of the embodiment of the present invention 1；
Fig. 4 is that a kind of fitting device structure of pluggable port of test four-way compact package of the embodiment of the present invention 1 is shown
It is intended to；
Fig. 5 is a kind of method flow diagram (equipment side) of test equipment PORT COM of the embodiment of the present invention 2；
Fig. 6 is a kind of fitting device structural representation of pluggable port of test four-way compact package of example 1 of the present invention
Figure；
Fig. 7 is a kind of fitting device structural representation of pluggable port of test four-way compact package of example 2 of the present invention
Figure.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Embodiment 1
As described in Figure 2, the embodiment of the invention provides a kind of fitting devices of test equipment PORT COM, comprising: power supply
Module 10, control signal testing module 20 and link block 30；
The power module, for receiving power supply signal from one group of power signal line and utilizing the power supply signal at least
For the control signal testing module for power supply；
The control signal testing module, for receive equipment output control signal after, to the control signal into
Control signal after the logical process is returned to the equipment by row logical process；
The link block, for coupling the fitting device and device talk port in a manner of pluggable；
In one embodiment, as shown in figure 3, the fitting device further includes data-signal test module 40；
The data-signal test module, for receiving data-signal from data-signal input line, and by the data
Signal loops back on corresponding data-signal output line；
In one embodiment, the data-signal test module can be repeater.With the letter of the fitting device
On the basis of number direction, the input terminal of the repeater connects the data-signal input line, the output end connection of the repeater
The data-signal output line.In another embodiment, it is direct-connected from ring to can be transmitting-receiving for the data-signal test module
Telegram in reply road, on the basis of the sense of the fitting device, the data-signal input line is direct-connected from ring by the transmitting-receiving
Telegram in reply road and corresponding data-signal output line are direct-connected.As shown in figure 4, when the PORT COM is that four-way compact package can insert
When pulling out port QSFP or QSFP+, the data-signal input line includes four pairs of differential data signals input lines: RX0P/N, RX1P/
N, RX2P/N, RX3P/N；The data-signal output line includes four pairs of differential data signals output lines: TX0P/N, TX1P/N,
TX2P/N, TX3P/N；
In one embodiment, the link block is golden finger connector；
In one embodiment, the control signal testing module 20 includes at least one control signal testing unit
201；The control signal testing unit is multiple selector；
The first input end of the control signal testing unit is connected and fixed level, the second input terminal connection the first control letter
Number input line, control terminal connect second control signal input line, and output end connects corresponding control signal output line；The control
Signal testing unit selects to export the first input in the output end under the control for the input signal that the control terminal receives
The reception signal for receiving signal or the second input terminal at end；
In one embodiment, the control signal testing module 20 further include: storage unit 202；
The storage unit passes through IIC (Inter-Integrated Circuit, IC bus) and the equipment
It is communicated, for storing data；Optionally, the storage unit is EEPROM (Electrically Erasable
Programmable Read Only Memory, Electrically Erasable Programmable Read-Only Memory).
In one embodiment, as shown in figure 4, the PORT COM is the pluggable port QSFP of four-way compact package
Or QSFP+；On the basis of the sense of the fitting device, the pluggable port QSFP or QSFP of four-way compact package
+ include at least: a plurality of data-signal input line, a plurality of data-signal output line, a plurality of control signal input line, a plurality of control letter
Number output line, IC bus, the first power signal line, second source signal wire and third power signal line；The control
Signal input line includes: the effective reseting signal line of low level, low-power consumption mode signal wire and mode select signal line；The control
Signal output line processed includes: the effective optical module of low level signal in place, the effective interrupt signal of low level.
In one embodiment, the control signal testing module 20 includes: the one 2 to select 1 selector 2011 and the 2nd 2
Select 1 selector 2012；
Described 1st selects the first input end of 1 selector to connect low level, and the second input terminal connects low-power consumption mode signal
Line, control terminal connect reseting signal line, and output end connects optical module signal wire in place；Described 1st selects 1 selector described multiple
When being high level signal on the signal wire of position, selection exports low level signal in the output end, is on the reseting signal line
When low level signal, select to export the signal received from the low-power consumption mode signal wire in the output end；
Described 2nd 2 selects the first input end of 1 selector to connect high level, the second input terminal connection mode selection signal
Line, control terminal connect reseting signal line, output end disconnecting signal wire；Described 2nd 2 selects 1 selector in the reset signal
When being high level signal on line, it is low level on the reseting signal line that selection, which exports high level signal in the output end,
When signal, select to export the signal received from the mode select signal line in the output end；
In one embodiment, the power module 10 includes the first power supply power supply unit 101 and the first power supply signal
Test cell 102；
The first power supply power supply unit, for the first power supply signal of receiving device output, second source signal and the
Three power supply signals are at least the control signal testing module for power supply after delay startup and level conversion；
The first power supply signal test cell includes that the first power supply indicator, second source indicator light and third power supply refer to
Show lamp；First power supply indicator is used to indicate whether the first power supply signal is normal, and the second source indicator light is for referring to
Show whether second source signal is normal, it is whether normal that the third power supply indicator is used to indicate third power supply signal；
In one embodiment, the first power supply power supply unit is also used to as the power supply of data-signal test module；
Wherein, first power supply indicator, second source indicator light and third power supply indicator are LED (Light
Emitting Diode, light emitting diode)；
In one embodiment, the power module 10 includes multiple independent second source power supply units 103；
The second source power supply unit, for the power supply signal all the way of receiving device output, by delay startup and level
Into the control signal testing unit of the control signal testing module or storage unit power supply after converting.
Embodiment 2
As shown in figure 5, being applied to have described the embodiment of the invention provides a kind of method of test equipment PORT COM
The equipment of PORT COM, comprising:
Step S510 sends control signal to the fitting device by control signal output line, believes from corresponding control
Number input line receives the control signal that the fitting device returns；
Step S520 judges that whether meeting scheduled logic between the control signal received and the control signal of transmission closes
System, determines whether the control link of the PORT COM is normal according to judging result.
In one embodiment, the PORT COM is the pluggable port QSFP or QSFP+ of four-way compact package；
On the basis of the sense of the equipment, the pluggable port QSFP or QSFP+ of four-way compact package is extremely
It less include: a plurality of data-signal input line, a plurality of data-signal output line, a plurality of control signal input line, a plurality of control signal
Output line, IC bus, the first power signal line, second source signal wire and third power signal line；
The control signal output line includes: the effective reseting signal line of low level, low-power consumption mode signal wire and mode
Selection signal line；The control signal input line includes: the effective optical module of low level signal in place, and low level is effectively interrupted
Signal.
In one embodiment, the judgement control signal received and whether meet between the control signal of transmission
Scheduled logical relation determines whether the control link of the PORT COM is normal according to judging result, comprising:
If exporting to the reset signal of fitting device is low level, and received from optical module signal wire in place
It is consistent with the control level of signal on low-power consumption mode signal wire to control signal, then determines the PORT COM in test pattern
Under first control link it is normal；
If exporting to the reset signal of fitting device is high level, and received from optical module signal wire in place
Controlling signal is low level signal, then determines that first control link of the PORT COM under non-test, mode is normal；
Wherein, the fitting device selects 1 selector including the 1st, and the described 1st selects the first input end of 1 selector to connect
Low level is connect, the second input terminal connects low-power consumption mode signal wire, and control terminal connects reseting signal line, and output end connects optical module
Signal wire in place；The first control link includes: low-power consumption mode signal wire, optical module signal wire in place and reset signal
Line；
In one embodiment, the judgement control signal received and whether meet between the control signal of transmission
Scheduled logical relation determines whether the control link of the PORT COM is normal according to judging result, comprising:
If exporting to the reset signal of fitting device is low level, and the control letter received from interrupt signal line
It is number consistent with the control level of signal on mode select signal line, then determine second of the PORT COM in test mode
It is normal to control link；
If exporting to the reset signal of fitting device is high level, and the control letter received from interrupt signal line
Number it is high level signal, then determines that second control link of the PORT COM under non-test, mode is normal；
Wherein, the fitting device selects 1 selector including the 2nd 2, and the described 2nd 2 selects the first input end of 1 selector to connect
High level, the second input terminal connection mode selection signal line are connect, control terminal connects reseting signal line, output end disconnecting signal
Line；The second control link includes: mode select signal line, interrupt signal line and reseting signal line；
In one embodiment, the judgement control signal received and whether meet between the control signal of transmission
Scheduled logical relation determines whether the control link of the PORT COM is normal according to judging result, comprising:
If exporting to the reset signal of fitting device is the high level signal and low level signal alternately exported, output is extremely
The low-power consumption mode signal of fitting device is high level signal, and the control signal received from optical module signal wire in place
It is also alternate high level signal and low level signal, then determines that the reseting signal line of the communication port is normal；
Wherein, the fitting device selects 1 selector including the 1st, and the described 1st selects the first input end of 1 selector to connect
Low level is connect, the second input terminal connects low-power consumption mode signal wire, and control terminal connects reseting signal line, and output end connects optical module
Signal wire in place；
In one embodiment, the judgement control signal received and whether meet between the control signal of transmission
Scheduled logical relation determines whether the control link of the PORT COM is normal according to judging result, comprising:
If exporting to the reset signal of fitting device is the high level signal and low level signal alternately exported, output is extremely
The mode select signal of fitting device is low level signal, and the control signal received from interrupt signal line is also alternating
High level signal and low level signal, then determine that the reseting signal line of the communication port is normal；
Wherein, the fitting device selects 1 selector including the 2nd 2, and the described 2nd 2 selects the first input end of 1 selector to connect
High level, the second input terminal connection mode selection signal line are connect, control terminal connects reseting signal line, output end disconnecting signal
Line；
In one embodiment, the judgement control signal received and whether meet between the control signal of transmission
Scheduled logical relation determines whether the control link of the PORT COM is normal according to judging result, comprising:
Data are written into the storage unit of the fitting device by IC bus IIC, if from the storage
The data read in unit are identical as the data of write-in, then determine that the IC bus IIC of the PORT COM is normal.
The technical solution of the embodiment of the present invention is illustrated below by two.
Example 1
As shown in fig. 6, equipment includes a pluggable port of four-way compact package in this example, the four-way is small
Type package pluggable port is coupled by golden finger connector (abbreviation golden finger) and test fixture device.
As shown in fig. 6, the test fixture device includes: data-signal test module A, signal testing module B, electricity are controlled
Source signal test and power supply module C and golden finger D.Wherein, data-signal test module A includes repeater A1.Control letter
Number test module B includes alternative selector B1, B2 and eeprom memory B3.Power supply signal test and power supply module C
Including power module C1 and LED (Light Emitting Diode, light emitting diode) indicator light C2.
After fitting device is inserted into device port, if equipment works normally (not under test mode), device port is defeated
Reset signal ResetL (reset signal is that low level is effective) is high level signal " 1 " out.Alternative selector B1 is in institute
Under the control for stating reset signal ResetL, output port Y=input port B is selected, at this point, input port B is grounded, output port
Y is connected by golden finger with " optical module signal in place " line of device port, therefore, " optical module signal ModPrsL in place "=
"0".Alternative selector B2 selects output port Y=under the control of (high level signal " 1 ") the reset signal ResetL
Input port B, at this point, input port B connects the high level signal of 3.3V, output port Y by golden finger and device port " in
Break signal " line is connected, therefore, " interrupt signal IntL "=" 1 ".The register value of eeprom memory according to QSFP standard into
Row register value is write, and guarantees that equipment uses iic bus using the register and equipment of iic bus access eeprom memory
The register for accessing practical optical module is identical.
After fitting device is inserted into device port, if to test data-signal, device port passes through golden finger
Data are sent to 4 couples of differential data output lines TX0P/N, TX1P/N, TX2P/N and TX3P/N, the data are arrived by golden finger
Up to repeater C1, after repeater C1 carries out waveform shaping optimization to the signal received, keeps reception data content constant and lead to
It crosses 4 differential data input lines RX0P/N, RX1P/N, RX2P/N and RX3P/N to send, the data warp sent
Golden finger D returns to device port, and whether the content that equipment judgement receives is identical as what is sent, identical, thinks link
Correctly, different then think link error.
After fitting device is inserted into device port, if to be surveyed to the low-power consumption mode signal LPMode in control signal
Examination, then device port output reset signal ResetL is low level signal " 0 ".In the survey for carrying out low-power consumption mode signal LPMode
When examination, enable signal of the reset signal ResetL as alternative selector B1, alternative selector B1 selects output end
Mouth Y=input port A, at this point, it is low-power consumption mode signal LPMode that input port A is received, output port Y passes through golden finger
It is connected with " optical module signal ModPrsL in place " line of device port.Equipment low-power consumption mode signal LPMode can be arranged
After " 0 ", check whether optical module signal ModPrsL in place is " 0 ", if not being " 0 ", then it is assumed that link error；If it is
" 0 ", then it is assumed that link is correct.Equipment can also set " 1 " for low-power consumption mode signal LPMode, check that optical module is believed in place
Whether number ModPrsL is " 1 ", if not being " 1 ", then it is assumed that link error；If it is " 1 ", then it is assumed that link is correct.
After fitting device is inserted into device port, if to be surveyed to the mode select signal ModeselL in control signal
Examination, then device port output reset signal ResetL is low level signal " 0 ".In the survey for carrying out mode select signal ModeselL
When examination, enable signal of the reset signal ResetL as alternative selector B2, alternative selector B2 selects output end
Mouth Y=input port A, at this point, it is mode select signal ModeselL that input port A is received, output port Y passes through golden finger
It is connected with " interrupt signal IntL " line of device port.After equipment can set mode select signal ModeselL to " 0 ", look into
See whether interrupt signal IntL is " 0 ", if not being " 0 ", then it is assumed that link error；If it is " 0 ", then it is assumed that link is correct.
Equipment can also set mode select signal ModeselL to " 1 ", check whether interrupt signal IntL is " 1 ", if not being
" 1 ", then it is assumed that link error；If it is " 1 ", then it is assumed that link is correct.
After fitting device is inserted into device port, if to test the reset signal ResetL in control signal,
It can choose and tested by alternative selector B1 or B2, it is similar for being tested by B1 with the test method tested by B2
's.Assuming that tested by alternative selector B1, when equipment output reset signal " 0 " ResetL=, alternative selection
Device B1 selects output port Y=input port A, at this point, it is low-power consumption mode signal LPMode that input port A is received, output
Port Y is connected by golden finger with " optical module signal ModPrsL in place " line of device port, and equipment exports low-power consumption mode letter
Number LPMode=" 1 ", if link is normal, equipment should receive optical module signal ModPrsL=" 1 " in place.Work as equipment
When " 1 " output reset signal ResetL=, alternative selector B1 selects output port Y=input port B, at this point, input terminal
Mouth B ground connection, if link is normal, equipment should receive optical module signal ModPrsL=" 0 " in place.Equipment passes through change
The value (" 0 " or " 1 ") and output low-power consumption mode signal LPMode=" 1 " of the reset signal ResetL of output, is then detected
" the optical module signal ModPrsL in place " received whether between low and high level according to scheduled logic level change rule into
Row jump, for example, the logic level change rule may is that when reset signal ResetL=" 0 " and low-power consumption mode signal
When " 1 " LPMode=, optical module signal ModPrsL=" 1 " in place, when reset signal ResetL=" 1 ", optical module is believed in place
Number ModPrsL=" 0 ".
Fitting device be inserted into device port after, if to test iic bus, equipment by iic bus to
Burst of data is written in the register of eeprom memory, then reads, checks whether the data of write-in and reading identical, it is identical then
Think that link is normal, it is different then think link error.
After fitting device is inserted into device port, the power module C1 of the fitting device passes through golden finger and device port
Three power supply lines (Vcc, VccTx, VccRx) are connected, by the power module C1 be unified for data-signal test module A (including
Repeater A1) and signal testing module B (including alternative selector B1, B2 and eeprom memory B3) power supply is controlled, LED refers to
Show that lamp C2 includes three indicator lights, the corresponding power supply signal all the way of each indicator light, for example, first indicator light is used to indicate the
All the way power supply signal Vcc whether normal power supply, second indicator light be used to indicate whether the second road power supply signal VccTx normally supplies
Electricity, third indicator light be used to indicate third road power supply signal VccRx whether normal power supply.The fitting device passes through power supply mould
Block C1, LED light C2 and golden finger can be realized delay startup and hot plug.
Example 2
As shown in fig. 7, equipment includes a pluggable port of four-way compact package in this example, the four-way is small
Type package pluggable port is coupled by golden finger connector (abbreviation golden finger) and test fixture device.
As shown in fig. 7, the test fixture device includes: data-signal test module A, signal testing module B, electricity are controlled
Source signal test and power supply module C and golden finger D.Wherein, data-signal test module A includes that transmitting-receiving is direct-connected from loopback electricity
Road.Controlling signal testing module B includes alternative selector B1, B2 and eeprom memory B3.Power supply signal test and power supply
Power supply module C includes three power modules: the first power module C1, second power supply module C2 and third power module C3.
After fitting device is inserted into device port, if equipment works normally (not under test mode), device port is defeated
Reset signal ResetL (reset signal is that low level is effective) is high level signal " 1 " out.Alternative selector B1 is in institute
Under the control for stating reset signal ResetL, output port Y=input port B is selected, at this point, input port B is grounded, output port
Y is connected by golden finger with " optical module signal in place " line of device port, therefore, " optical module signal ModPrsL in place "=
"0".Alternative selector B2 selects output port Y=under the control of (high level signal " 1 ") the reset signal ResetL
Input port B, at this point, input port B connects the high level signal of 3.3V, output port Y by golden finger and device port " in
Break signal " line is connected, therefore, " interrupt signal IntL "=" 1 ".The register value of eeprom memory according to QSFP standard into
Row register value is write, and guarantees that equipment uses iic bus using the register and equipment of iic bus access eeprom memory
The register for accessing practical optical module is identical.
After fitting device is inserted into device port, if to test data-signal, device port passes through golden finger
Data are sent to 4 couples of differential data output lines TX0P/N, TX1P/N, TX2P/N and TX3P/N, the data are arrived by golden finger
Up to repeater C1, after repeater C1 carries out waveform shaping optimization to the signal received, keeps reception data content constant and lead to
It crosses 4 differential data input lines RX0P/N, RX1P/N, RX2P/N and RX3P/N to send, the data warp sent
Golden finger D returns to device port, and whether the content that equipment judgement receives is identical as what is sent, identical, thinks link
Correctly, different then think link error.
After fitting device is inserted into device port, if to be surveyed to the low-power consumption mode signal LPMode in control signal
Examination, then device port output reset signal ResetL is low level signal " 0 ".In the survey for carrying out low-power consumption mode signal LPMode
When examination, enable signal of the reset signal ResetL as alternative selector B1, alternative selector B1 selects output end
Mouth Y=input port A, at this point, it is low-power consumption mode signal LPMode that input port A is received, output port Y passes through golden finger
It is connected with " optical module signal ModPrsL in place " line of device port.Equipment low-power consumption mode signal LPMode can be arranged
After " 0 ", check whether optical module signal ModPrsL in place is " 0 ", if not being " 0 ", then it is assumed that link error；If it is
" 0 ", then it is assumed that link is correct.Equipment can also set " 1 " for low-power consumption mode signal LPMode, check that optical module is believed in place
Whether number ModPrsL is " 1 ", if not being " 1 ", then it is assumed that link error；If it is " 1 ", then it is assumed that link is correct.
After fitting device is inserted into device port, if to be surveyed to the mode select signal ModeselL in control signal
Examination, then device port output reset signal ResetL is low level signal " 0 ".In the survey for carrying out mode select signal ModeselL
When examination, enable signal of the reset signal ResetL as alternative selector B2, alternative selector B2 selects output end
Mouth Y=input port A, at this point, it is mode select signal ModeselL that input port A is received, output port Y passes through golden finger
It is connected with " interrupt signal IntL " line of device port.After equipment can set mode select signal ModeselL to " 0 ", look into
See whether interrupt signal IntL is " 0 ", if not being " 0 ", then it is assumed that link error；If it is " 0 ", then it is assumed that link is correct.
Equipment can also set mode select signal ModeselL to " 1 ", check whether interrupt signal IntL is " 1 ", if not being
" 1 ", then it is assumed that link error；If it is " 1 ", then it is assumed that link is correct.
After fitting device is inserted into device port, if to test the reset signal ResetL in control signal,
It can choose and tested by alternative selector B1 or B2, it is similar for being tested by B1 with the test method tested by B2
's.Assuming that tested by alternative selector B2, when equipment output reset signal " 0 " ResetL=, alternative selection
Device B2 selects output port Y=input port A, at this point, it is mode select signal ModeselL that input port A is received, output
Port Y is connected by golden finger with " interrupt signal IntL " line of device port, equipment output mode selection signal ModeselL
=" 0 ", if link is normal, equipment should receive interrupt signal IntL=" 0 ".As equipment output reset signal ResetL
When=" 1 ", alternative selector B2 select output port Y=input port B, at this point, input port B connect high level (for example,
3.3V), if link is normal, equipment should receive interrupt signal IntL=" 1 ".Equipment is believed by changing the reset of output
The value (" 0 " or " 1 ") and output mode selection signal ModeselL=" 0 " of number ResetL, what then detection received " interrupts
Whether signal IntL " is jumped between low and high level according to scheduled logic level change rule, for example, the logic is electric
Flat rule change may is that as reset signal ResetL=" 0 " and " 0 " mode select signal ModeselL=, interrupt signal
IntL=" 0 ", when reset signal ResetL=" 1 ", interrupt signal IntL=" 1 ".
Fitting device be inserted into device port after, if to test iic bus, equipment by iic bus to
Burst of data is written in the register of eeprom memory, then reads, checks whether the data of write-in and reading identical, it is identical then
Think that link is normal, it is different then think link error.
After fitting device is inserted into device port, the first power module C1 is connected simultaneously by golden finger with the Vcc of device port
And power for eeprom memory B3, second power supply module C2 is connected with the VccTx of device port by golden finger and is two
A selector B2 is selected to power, third power module C3 is connected with the VccRx of device port by golden finger and is selected for alternative
Device B1 power supply is selected, the fitting device can be realized delay startup and hot plug by three power modules and golden finger.If the
The eeprom memory work of one power module C1 power supply is abnormal, then can be with for example, eeprom memory does not have output signal
Infer that power supply signal Vcc breaks down.Similarly, if the alternative selector B2 of second power supply module C2 power supply works not just
Often, for example, alternative selector B2 does not have output signal, then it may infer that power supply signal VccTx breaks down.Similarly, such as
The alternative selector B1 work of fruit third power module C3 power supply is abnormal, for example, alternative selector B1 does not export letter
Number, then it may infer that power supply signal VccRx breaks down.
It should be noted that the invention may also have other embodiments, without departing substantially from spirit of that invention and its essence
In the case of, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these are corresponding
Change and modification all should fall within the scope of protection of the appended claims of the present invention.
Claims (17)
1. a kind of fitting device of test equipment PORT COM, comprising: power module, control signal testing module and connection mould
Block；
The power module, for receiving power supply signal from one group of power signal line and being at least institute using the power supply signal
State control signal testing module for power supply；
The control signal testing module patrols the control signal after receiving the control signal that equipment exports
Processing is collected, the control signal after the logical process is returned into the equipment；
The link block, for coupling the fitting device and device talk port in a manner of pluggable.
2. fitting device as described in claim 1, it is characterised in that:
The PORT COM is the pluggable port of four-way compact package；
On the basis of the sense of the fitting device, the pluggable port of four-way compact package is included at least: a plurality of
Data-signal input line, a plurality of control signal input line, a plurality of control signal output line, integrates a plurality of data-signal output line
Circuit bus, the first power signal line, second source signal wire and third power signal line；
The control signal input line includes: the effective reseting signal line of low level, low-power consumption mode signal wire and model selection
Signal wire；The control signal output line includes: the effective optical module of low level signal in place, and low level effectively interrupts letter
Number.
3. fitting device as claimed in claim 1 or 2, it is characterised in that:
The control signal testing module includes at least one control signal testing unit；The control signal testing unit is more
Road selector；
The first input end of the control signal testing unit is connected and fixed level, and it is defeated that the second input terminal connects first control signal
Enter line, control terminal connects second control signal input line, and output end connects corresponding control signal output line；The control signal
Test cell selects to export first input end in the output end under the control for the input signal that the control terminal receives
Receive the reception signal of signal or the second input terminal.
4. fitting device as claimed in claim 3, it is characterised in that:
The control signal testing module further include: storage unit；
The storage unit is communicated by IC bus with the equipment, for storing data.
5. fitting device as claimed in claim 3, it is characterised in that:
The control signal testing module includes: the one 21 selector and the 2nd 2 to be selected to select 1 selector；
Described 1st selects the first input end of 1 selector to connect low level, and the second input terminal connects low-power consumption mode signal wire,
Control terminal connects reseting signal line, and output end connects optical module signal wire in place；Described 1st selects 1 selector in the reset
When being high level signal on signal wire, it is low on the reseting signal line that selection, which exports low level signal in the output end,
When level signal, select to export the signal received from the low-power consumption mode signal wire in the output end；
Described 2nd 2 selects the first input end of 1 selector to connect high level, the second input terminal connection mode selection signal line, control
End processed connects reseting signal line, output end disconnecting signal wire；Described 2nd 2 selects 1 selector on the reseting signal line
When being high level signal, it is low level signal on the reseting signal line that selection, which exports high level signal in the output end,
When, it selects to export the signal received from the mode select signal line in the output end.
6. fitting device as claimed in claim 1 or 2, which is characterized in that described device further include:
Data-signal test module, for receiving data-signal from data-signal input line, and by the data-signal loopback
On to corresponding data-signal output line.
7. fitting device as claimed in claim 6, it is characterised in that:
The data-signal test module includes that repeater or transmitting-receiving are direct-connected from circuit loop-back.
8. fitting device as claimed in claim 6, it is characterised in that:
The power module includes the first power supply power supply unit and the first power supply signal test cell；
The first power supply power supply unit, the first power supply signal, second source signal and the third electricity for receiving device output
Source signal is at least the control signal testing module for power supply after delay startup and level conversion；
The first power supply signal test cell includes the first power supply indicator, second source indicator light and third power supply instruction
Lamp；First power supply indicator is used to indicate whether the first power supply signal is normal, and the second source indicator light is used to indicate
Whether second source signal is normal, and whether the third power supply indicator is used to indicate third power supply signal normal.
9. fitting device as claimed in claim 8, it is characterised in that:
When the data-signal test module includes repeater, the first power supply power supply unit is also used to as data letter
The power supply of number test module.
10. fitting device as claimed in claim 4, it is characterised in that:
The power module includes multiple independent second source power supply units；
The second source power supply unit, for the power supply signal all the way of receiving device output, by delay startup and level conversion
Control signal testing unit for the control signal testing module or storage unit power supply afterwards.
11. a kind of method of test equipment PORT COM, applied to the equipment with the PORT COM, comprising:
Control signal is sent to the fitting device by control signal output line, receives institute from corresponding control signal input line
State the control signal of fitting device return；
Judge the control signal received and whether meet scheduled logical relation between the control signal of transmission, is tied according to judgement
Fruit determines whether the control link of the PORT COM is normal.
12. method as claimed in claim 11, it is characterised in that:
The PORT COM is the pluggable port of four-way compact package；
On the basis of the sense of the equipment, the pluggable port of four-way compact package is included at least: a plurality of data
Signal input line, a plurality of data-signal output line, a plurality of control signal input line, a plurality of control signal output line, integrated circuit
Bus, the first power signal line, second source signal wire and third power signal line；
The control signal output line includes: the effective reseting signal line of low level, low-power consumption mode signal wire and model selection
Signal wire；The control signal input line includes: the effective optical module of low level signal in place, and low level effectively interrupts letter
Number.
13. method as claimed in claim 12, it is characterised in that:
The judgement control signal received and whether meet scheduled logical relation between the control signal of transmission, according to sentencing
Disconnected result determines whether the control link of the PORT COM is normal, comprising:
If exporting to the reset signal of fitting device is low level, and the control received from optical module signal wire in place
Signal is consistent with the control level of signal on low-power consumption mode signal wire, then determines the PORT COM in test mode
First control link is normal；
If exporting to the reset signal of fitting device is high level, and the control received from optical module signal wire in place
Signal is low level signal, then determines that first control link of the PORT COM under non-test, mode is normal；
Wherein, the fitting device selects 1 selector including the 1st, and the described 1st selects the first input end connection of 1 selector low
Level, the second input terminal connect low-power consumption mode signal wire, and control terminal connects reseting signal line, and it is in place that output end connects optical module
Signal wire；The first control link includes: low-power consumption mode signal wire, optical module signal wire in place and reseting signal line.
14. method as claimed in claim 12, it is characterised in that:
The judgement control signal received and whether meet scheduled logical relation between the control signal of transmission, according to sentencing
Disconnected result determines whether the control link of the PORT COM is normal, comprising:
If export to fitting device reset signal be low level, and the control signal received from interrupt signal line with
The level of control signal on mode select signal line is consistent, then determines the second control of the PORT COM in test mode
Link is normal；
If exporting to the reset signal of fitting device is high level, and the control signal received from interrupt signal line is
High level signal then determines that second control link of the PORT COM under non-test, mode is normal；
Wherein, the fitting device selects 1 selector including the 2nd 2, and the described 2nd 2 selects the first input end of 1 selector to connect height
Level, the second input terminal connection mode selection signal line, control terminal connect reseting signal line, output end disconnecting signal wire；
The second control link includes: mode select signal line, interrupt signal line and reseting signal line.
15. method as claimed in claim 12, it is characterised in that:
The judgement control signal received and whether meet scheduled logical relation between the control signal of transmission, according to sentencing
Disconnected result determines whether the control link of the PORT COM is normal, comprising:
If exporting to the reset signal of fitting device is the high level signal and low level signal alternately exported, output to tooling
The low-power consumption mode signal of device is high level signal, and the control signal received from optical module signal wire in place is also
Alternate high level signal and low level signal, then determine that the reseting signal line of the communication port is normal；
Wherein, the fitting device selects 1 selector including the 1st, and the described 1st selects the first input end connection of 1 selector low
Level, the second input terminal connect low-power consumption mode signal wire, and control terminal connects reseting signal line, and it is in place that output end connects optical module
Signal wire.
16. method as claimed in claim 12, it is characterised in that:
The judgement control signal received and whether meet scheduled logical relation between the control signal of transmission, according to sentencing
Disconnected result determines whether the control link of the PORT COM is normal, comprising:
If exporting to the reset signal of fitting device is the high level signal and low level signal alternately exported, output to tooling
The mode select signal of device is low level signal, and the control signal received from interrupt signal line is also alternate height
Level signal and low level signal then determine that the reseting signal line of the communication port is normal；
Wherein, the fitting device selects 1 selector including the 2nd 2, and the described 2nd 2 selects the first input end of 1 selector to connect height
Level, the second input terminal connection mode selection signal line, control terminal connect reseting signal line, output end disconnecting signal wire.
17. method as claimed in claim 12, it is characterised in that:
The judgement control signal received and whether meet scheduled logical relation between the control signal of transmission, according to sentencing
Disconnected result determines whether the control link of the PORT COM is normal, comprising:
Data are written into the storage unit of the fitting device by IC bus IIC, if from the storage unit
The data of middle reading and the data of write-in are identical, then determine that the IC bus of the PORT COM is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711490092.6A CN109995425B (en) | 2017-12-29 | 2017-12-29 | Method for testing communication port of equipment and tool device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711490092.6A CN109995425B (en) | 2017-12-29 | 2017-12-29 | Method for testing communication port of equipment and tool device |
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| CN109995425B (en) | 2021-07-06 |
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