CN201717866U - Optical signal testing device - Google Patents
Optical signal testing device Download PDFInfo
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- CN201717866U CN201717866U CN2010202092414U CN201020209241U CN201717866U CN 201717866 U CN201717866 U CN 201717866U CN 2010202092414 U CN2010202092414 U CN 2010202092414U CN 201020209241 U CN201020209241 U CN 201020209241U CN 201717866 U CN201717866 U CN 201717866U
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Abstract
The utility model relates to an optical signal testing device. The device comprises a CPLD chip and a crystal, a tact switch and a power supply module that are connected with the CPLD chip, wherein the CPLD chip is also connected with a two-way input/output chip, a first electric signal output terminal and a second electric signal output terminal, respectively; and the two-way input/output chip is connected with a first optical receiver, a second optical receiver, a first optical transmitter and a second optical transmitter, respectively. The device can convert optical signal into electric signal which is to be tested, and can not only meet the requirement for simultaneously and reliably testing the optical signals among a plurality of devices but also ensure the normal operation of the optical signals.
Description
Technical field
The utility model belongs to the Optical Fiber Transmission field, especially a kind of light signal testing apparatus that is used for Optical Fiber Transmission.
Background technology
Because equipment such as oscilloscope, oscillograph are the energy measurement signal of telecommunication only, so light signal can't directly measure by oscilloscope, need be electric signal measurement with converting optical signals; Modal in the method for measurement of light signal is to come the reflected optical signal state by the signal of telecommunication of measuring photoelectricity Converting terminal front end or rear end, but this method when the light signal that is used to measure on the different device, can be subjected between different device can't be altogether influence, in the method for measurement of light signal another kind of common be to test with oscilloscope on the photoelectricity keyset of light signal being received device outside in method, but this method can have influence on the normal use of light signal.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of light signal testing apparatus is provided, this device can be converted to the signal of telecommunication with light signal and test, the needs of measuring light signal between the multiple arrangement simultaneously reliably can either be satisfied, the normal use of each light signal can also be guaranteed not influence.
The purpose of this utility model solves by the following technical programs: this light signal testing apparatus, comprise CPLD chip and the crystalline substance shake, touch-switch and the power module that are connected with this CPLD chip, described CPLD chip also is connected with two-way I/O chip, first electrical signal and second electrical signal respectively, and described two-way I/O chip is connected with first optical receiver, second optical receiver, first optical transmitting set and second optical transmitting set respectively.
The model of above-mentioned CPLD chip is EPM570T144C5N.
The model of above-mentioned two-way I/O chip is SN74LVC16245ADL.
The model of above-mentioned first optical receiver and second optical receiver is HFBR-1414TZ.
The model of above-mentioned first electrical signal and second electrical signal is YK224.
The model of above-mentioned touch-switch is CTT1102D-2.
Power module described in the utility model can adopt following scheme: power module comprises MiniUSB power interface and battery pack, the electric energy output end of MiniUSB power interface and battery pack is connected on the power input terminal of CPLD chip jointly, and the DC output end of described MiniUSB power interface is also connected on the charging terminal of battery pack.
Further, on above-mentioned CPLD chip, also be connected with a LED light, be used to indicate power supply status, optical receiver and optical receiver to have no signal to input or output.
The beneficial effects of the utility model are: 1) it serves as to handle core with the CPLD chip, adopt a plurality of optical receivers and optical transmitting set, can satisfy the needs of measuring simultaneously reliably a plurality of different light signals, can be subjected to when having solved test between auto levelizer from the light signal of different device can't be altogether problem; 2) tested light signal is tested through using oscilloscope behind this device, and can not have influence on the normal use of light signal.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present utility model.
Wherein: 1 is first optical receiver; 2 is second optical receiver; 3 is first optical transmitting set; 4 is second optical transmitting set; 5 is two-way I/O chip; 6 is the CPLD chip; 7 is first electrical signal; 8 is second electrical signal; 9 is the MiniUSB power interface; 10 is battery pack; 11 is touch-switch; 12 is brilliant shake; 13 is LED light.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail: referring to Fig. 1, light signal testing apparatus of the present utility model can be converted to the light signal of input signal of telecommunication output and use for testing equipment, also the light signal of input is exported with the form of light signal simultaneously, the light signal that is input still can normally use, crystalline substance shake 12, touch-switch 11, power module LED light 13, two-way I/O chip 5, first electrical signal, 7 and second electrical signal 8 that it comprises CPLD chip 6 and is connected with this CPLD chip 6.Wherein two-way I/O chip 5 also is connected with first optical receiver 1, second optical receiver 2, first optical transmitting set 3 and second optical transmitting set 4 respectively.Described power module comprises MiniUSB power interface 9 and battery pack 10, the electric energy output end of MiniUSB power interface 9 and battery pack 10 is connected on the power input terminal of CPLD chip 6 jointly, and the DC output end of MiniUSB power interface 9 is also connected on the charging terminal of battery pack 10.
The operation principle of above each several part is as follows: in conjunction with the accompanying drawings as can be known, the utility model can be used for the two-way light input signal is tested simultaneously, first optical receiver 1 is accepted one road light input signal and is converted into signal of telecommunication output, this signal of telecommunication carries out importing CPLD chip 6 after the level conversion through two-way I/O chip 5, the signal of 6 pairs of inputs of CPLD chip is expanded, change into the two-way signal of telecommunication output identical with input signal, the two-way I/O chip 5 of wherein leading up to carries out carrying out electrical-optical conversion output through first optical transmitting set 3 after the level conversion, another route first electrical signal 7 is directly exported, by the light signal of first optical transmitting set 3 output with by the time difference between the corresponding signal rising edge of the light signal of first optical receiver 1 less than 0.5 μ s, the light signal of exporting by first electrical signal 7 with by the time difference between the corresponding signal rising edge of the light signal of first optical receiver 1 less than 0.5 μ s; Second optical receiver 2 is accepted one road light input signal and is converted into signal of telecommunication output, this signal of telecommunication carries out importing CPLD chip 6 after the level conversion through two-way I/O chip 5, the signal of 6 pairs of inputs of CPLD chip is expanded, change into the two-way signal of telecommunication output identical with input signal, the two-way I/O chip 5 of wherein leading up to carries out carrying out electrical-optical conversion output through second optical transmitting set 4 after the level conversion, another route second electrical signal 8 is directly exported, by the light signal of second optical transmitting set 4 output with by the time difference between the corresponding signal rising edge of the light signal of second optical receiver 2 less than 0.5 μ s, the light signal of exporting by second electrical signal 8 with by the time difference between the corresponding signal rising edge of the light signal of second optical receiver 2 less than 0.5 μ s.
Brilliant shake 12 is the work clock of this device; Touch-switch 11 is used to control the break-make of first optical receiver 1 and second optical receiver, 2 input optical signals; LED light 13 is used to indicate power supply status, first optical receiver 1 and second optical receiver 2 to have no signal input, first optical transmitting set 3 and second optical transmitting set 4 that no signal output is arranged.
This utility model adopts AC-battery power source that 5V DC power supply that Mini-USB power interface 9 provides and battery pack 10 form as working power, and Mini-USB power interface 9 is also as the charge power supply of battery pack 10.
The utility model provides a kind of prioritization scheme, and connected mode is identical with Fig. 1, and the type selecting of its each electronic component is as described below: the model of CPLD chip 6 is EPM570T144C5N; The model of two-way I/O chip 5 is SN74LVC16245ADL; The model of first optical receiver 1 and second optical receiver 2 is HFBR-1414TZ; The model of first electrical signal, 7 and second electrical signal 8 is YK224; The model of touch-switch 11 is CTT1102D-2.
More than model of the present utility model is limited only is a kind of prioritization scheme that the utility model provides, protection range of the present utility model is not limited to above-mentioned model, any be equal to or the replacement of equivalence all will fall within the protection range of the present utility model.
In sum, light signal testing apparatus described in the utility model can will be converted to the signal of telecommunication by the light signal that a plurality of different device sent on the one hand simultaneously, for oscilloscope, testing equipments such as oscillograph, solved and to be subjected to the influence of factor altogether between different device when measuring the light signal on the different device with the electric signal source of oscilloscope measurement light signal, this device can also continue to keep the original form of input optical signal on the other hand, again this signal is exported to the equipment that uses this signal with the form of light signal, thereby guarantee in this light signal of test, not influence the normal use of signal.
Claims (8)
1. light signal testing apparatus, the crystalline substance shake (12), touch-switch (11) and the power module that comprise CPLD chip (6) and be connected with this CPLD chip (6), it is characterized in that: described CPLD chip (6) also is connected with two-way I/O chip (5), first electrical signal (7) and second electrical signal (8) respectively, and described two-way I/O chip (5) is connected with first optical receiver (1), second optical receiver (2), first optical transmitting set (3) and second optical transmitting set (4) respectively.
2. light signal testing apparatus according to claim 1 is characterized in that: the model of described CPLD chip (6) is EPM570T144C5N.
3. light signal testing apparatus according to claim 1 is characterized in that: the model of described two-way I/O chip (5) is SN74LVC16245ADL.
4. light signal testing apparatus according to claim 1 is characterized in that: the model of described first optical receiver (1) and second optical receiver (2) is HFBR-1414TZ.
5. light signal testing apparatus according to claim 1 is characterized in that: the model of described first electrical signal (7) and second electrical signal (8) is YK224.
6. light signal testing apparatus according to claim 1 is characterized in that: the model of described touch-switch (11) is CTT1102D-2.
7. light signal testing apparatus according to claim 1, it is characterized in that: described power module comprises MiniUSB power interface (9) and battery pack (10), the electric energy output end of MiniUSB power interface (9) and battery pack (10) is connected on the power input terminal of CPLD chip (6) jointly, and the DC output end of described MiniUSB power interface (9) is also connected on the charging terminal of battery pack (10).
8. light signal testing apparatus according to claim 1 is characterized in that: described CPLD chip (6) also is connected with a LED light (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202092414U CN201717866U (en) | 2010-05-31 | 2010-05-31 | Optical signal testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202092414U CN201717866U (en) | 2010-05-31 | 2010-05-31 | Optical signal testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717866U true CN201717866U (en) | 2011-01-19 |
Family
ID=43463874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202092414U Expired - Fee Related CN201717866U (en) | 2010-05-31 | 2010-05-31 | Optical signal testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717866U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356936A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
| CN105356937A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
-
2010
- 2010-05-31 CN CN2010202092414U patent/CN201717866U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356936A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
| CN105356937A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20180531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |