CN208128459U - A kind of Table top type gigabit Ethernet optical transmitter and receiver - Google Patents
A kind of Table top type gigabit Ethernet optical transmitter and receiver Download PDFInfo
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- CN208128459U CN208128459U CN201820622525.2U CN201820622525U CN208128459U CN 208128459 U CN208128459 U CN 208128459U CN 201820622525 U CN201820622525 U CN 201820622525U CN 208128459 U CN208128459 U CN 208128459U
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Abstract
The utility model discloses a kind of Table top type gigabit Ethernet optical transmitter and receivers, circuit board including shell and setting inside the shell, there is governor circuit on circuit board, video input circuit and signal output apparatus, video input circuit and signal output apparatus are both coupled to governor circuit, video input circuit includes video interface and Video Quality Metric chip, Video Quality Metric chip has signal input pin and multiple data output pins, video interface is grounded after being coupled with first gas discharge tube, it is also coupled to the signal input pin that the first PTC self-recovery fuse is followed by Video Quality Metric chip, Video Quality Metric chip is coupled with exclusion, multiple data output pins of Video Quality Metric chip couple after being both coupled to the exclusion with governor circuit, equipment job stability and equipment life can be enhanced in the utility model.
Description
Technical field
The utility model relates to Ethernet optical transmitter and receiver, specially a kind of Table top type gigabit Ethernet optical transmitter and receiver.
Background technique
Ethernet optical transmitter and receiver is a kind of 10/100Mbps intelligent adaptive Fast Ethernet photoelectric converter, be may be implemented
Data are transmitted between two kinds of heterogeneous networks transmission mediums of twisted pair and optical fiber.
Ethernet optical transmitter and receiver is widely used in：Homeland Security, prison, petrochemical industry, enterprise and bank, public place of entertainment and doctor
In the monitoring system of institute, health supervision center, government and army, power plant, traffic, school etc..
Under this application, Ethernet optical transmitter and receiver is easy for causing a system during use if there is some mistakes
Column problem, or even be easy to cause a large amount of economic loss, necessary protection electricity is lacked in the circuit of existing Ethernet optical transmitter and receiver
Road, such Ethernet optical transmitter and receiver are easy for damaging at work, cause unnecessary problem.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide one kind, and there is protection circuit to enhance
The Table top type gigabit Ethernet optical transmitter and receiver of equipment job stability and equipment life, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides following technical solution：A kind of Table top type gigabit Ethernet light end
Machine has governor circuit, video input circuit and signal on the circuit board including shell and setting circuit board inside the shell
Output circuit, the video input circuit and signal output apparatus are both coupled to governor circuit, which is characterized in that the video is defeated
Entering circuit includes video interface and Video Quality Metric chip, and the Video Quality Metric chip has signal input pin and multiple data defeated
Pin out, the video interface are grounded after being coupled with first gas discharge tube, have been also coupled to the first PTC self-recovery fuse and have been followed by
The signal input pin of Video Quality Metric chip, the Video Quality Metric chip are coupled with exclusion, the Video Quality Metric chip it is multiple
Data output pins couple after being both coupled to the exclusion with governor circuit.
It as a further improvement of the utility model, further include the simultaneous asynchronous data transmissions circuit for being coupled to governor circuit, institute
Stating simultaneous asynchronous data transmissions circuit includes data-interface, data receiver circuit and data transmitting line, the data receiver circuit and
Data transmitting line is both coupled to governor circuit, is also both coupled to data-interface, and the data receiver circuit and data send electricity
Second gas discharge tube is coupled between road, the second gas discharge tube has there are two protection pin and a grounding pin,
One of protection pin is coupled to data receiver circuit, another protection pin is coupled to data transmitting line, grounding pin
Ground connection.
It has been also coupled between the data receiver circuit and data transmitting line as a further improvement of the utility model,
Transient Suppression Diode, the data receiver circuit and data transmitting line are also coupled with the 2nd PTC self-recovery fuse, institute
The one end for stating the 2nd PTC self-recovery fuse on data receiver circuit is coupled to data-interface, and the other end is coupled to transient state suppression
The anode of diode processed, it is another that one end of the 2nd PTC self-recovery fuse on the data transmitting line is coupled to data-interface
One end is coupled to the cathode of Transient Suppression Diode.
The signal output apparatus includes output port and is coupled to the output as a further improvement of the utility model,
The data conversion chip of port, the data conversion chip are further coupled to governor circuit, the data conversion chip and master control electricity
Electrostatic protection chip is coupled between road.
It as a further improvement of the utility model, further include indicating circuit, the indicating circuit includes multiple luminous two
Pole pipe, the anode of each light emitting diode are coupled to external power supply, each light-emitting diodes after being coupled with current-limiting resistance
The cathode of pipe is coupled to governor circuit.
The beneficial effects of the utility model, the exclusion of setting compare multiple resistance, more save the overall space of circuit board,
The installation and arrangement for facilitating circuit, do not allow easy to be lost on assembling line yet, and the first PTC self-recovery fuse of setting can yet
To avoid external monitoring camera analog quantity image data output abnormality when signal strength it is excessive and lead to Video Quality Metric chip
Damage, in this way setting can be when the image data output intensity of analog quantity be excessively high, such as short-circuit situation, and such first
Electric current in PTC self-recovery fuse will become larger, and temperature will rise, then the resistance of the first PTC self-recovery fuse
Value will rise, and avoiding excessive electric current from entering in Video Quality Metric chip causes the Video Quality Metric chip to burn out, and is arranged
The first PTC self-recovery fuse can the image data of analog quantity export it is normal when automatically from normal temperature is restored to, make
Circuit works normally again, and the first gas discharge tube of setting can use LT-BA151N model, the gas discharge of the model
Pipe is patch type, can reduce the volume of circuit, and the gas-discharge tube is arranged to provide surge protection, prevents video from connecing
Mouth receives the big voltage of moment, avoids the big voltage from puncturing the component in Video Quality Metric chip, thus can be enhanced
This Table top type gigabit Ethernet optical transmitter and receiver equipment job stability and equipment life avoid the damage reduced in use process several
Rate avoids leading to economic and other losses because of the damage of Table top type gigabit Ethernet optical transmitter and receiver as far as possible.
Detailed description of the invention
Fig. 1 is the video input circuit circuit diagram of the utility model；
Fig. 2 is the simultaneous asynchronous data transmissions circuit circuit diagram of the utility model；
Fig. 3 is that the data conversion chip of the utility model connects circuit diagram；
Fig. 4 is the indicating circuit circuit diagram of the utility model.
Drawing reference numeral：1, governor circuit；2, video input circuit；21, video interface；22, Video Quality Metric chip；23,
One PTC self-recovery fuse；24, first gas discharge tube；25, exclusion；3, signal output apparatus；31, output port；32, number
According to conversion chip；33, electrostatic protection chip；4, simultaneous asynchronous data transmissions circuit；41, data-interface；42, data receiver circuit；43,
Data transmitting line；44, second gas discharge tube；45, Transient Suppression Diode；46, the 2nd PTC self-recovery fuse；
5, indicating circuit；51, light emitting diode；52, current-limiting resistance.
Specific embodiment
The utility model is described in further detail below in conjunction with embodiment given by attached drawing.
Referring to Fig.1 shown in -4, a kind of Table top type gigabit Ethernet optical transmitter and receiver of the present embodiment, including shell and setting are outside
Circuit board in shell has governor circuit 1, video input circuit 2 and signal output apparatus 3, the video on the circuit board
Input circuit 2 and signal output apparatus 3 are both coupled to governor circuit 1, and the video input circuit 2 includes video interface 21 and view
Frequency conversion chip 22, the Video Quality Metric chip 22 have signal input pin and multiple data output pins, and the video connects
Mouth 21 is grounded after being coupled with first gas discharge tube 24, has been also coupled to the first PTC self-recovery fuse 23 and has been followed by Video Quality Metric core
The signal input pin of piece 22, the Video Quality Metric chip 22 are coupled with exclusion 25, multiple numbers of the Video Quality Metric chip 22
It is both coupled to after the exclusion 25 according to output pin and is coupled with governor circuit 1.
Through the above technical solutions, user needs external monitoring camera being linked into this Table top type gigabit Ethernet light end
When machine, the output interface of external monitoring camera can be inserted into video interface 21, then external monitoring camera can incite somebody to action
The image data of analog quantity is sent to the video interface 21, after which receives the image data of analog quantity, the simulation
The image data of amount is sent to Video Quality Metric chip 22, the Video Quality Metric chip after passing through the first PTC self-recovery fuse 23
22 are converted into the image data of the analog quantity to be sent to governor circuit 1 after the image data of digital quantity, and then user can incite somebody to action
Governor circuit 1 is connected to external computer or other receive terminal and are checked, the exclusion 25 of setting compares multiple resistance, more
Save circuit board overall space, also facilitate the installation and arrangement of circuit, do not allow on assembling line yet it is easy to be lost, setting
First PTC self-recovery fuse 23 can be to avoid signal strength when the image data output abnormality of external monitoring camera analog quantity
It is excessive and cause Video Quality Metric chip 22 damage, in this way be arranged can when the image data output intensity of analog quantity is excessively high,
Such as the situation of short circuit, the electric current in such first PTC self-recovery fuse 23 will become larger, temperature will rise, then
The resistance value of first PTC self-recovery fuse 23 will rise, and avoid excessive electric current from entering in Video Quality Metric chip 22 and lead
The Video Quality Metric chip 22 is caused to burn out, and the first PTC self-recovery fuse 23 being arranged can be in the image data of analog quantity
Work normally circuit again from normal temperature is restored to automatically when exporting normal, the first gas discharge tube 24 of setting can
To use LT-BA151N model, the gas-discharge tube of the model is patch type, can reduce the volume of circuit, and being arranged should
Gas-discharge tube can provide surge protection, prevent video interface 21 from receiving the big voltage of moment, avoid the big voltage that from regarding
Component breakdown in frequency conversion chip 22, thus can be enhanced this Table top type gigabit Ethernet optical transmitter and receiver equipment the operation is stable
Property and equipment life, avoid reduce use process in damage probability, avoided as far as possible because of Table top type gigabit Ethernet light end
The damage of machine and lead to economic and other losses.
It further include the simultaneous asynchronous data transmissions circuit 4 for being coupled to governor circuit 1, institute as an improved specific embodiment
Stating simultaneous asynchronous data transmissions circuit 4 includes data-interface 41, data receiver circuit 42 and data transmitting line 43, the data receiver
Circuit 42 and data transmitting line 43 are both coupled to governor circuit 1, are also both coupled to data-interface 41, the data receiver circuit
Second gas discharge tube 44 is coupled between 42 and data transmitting line 43, there are two protections for the tool of second gas discharge tube 44
Pin and a grounding pin, one of protection pin are coupled to data receiver circuit 42, another protection pin is coupled to
Data transmitting line 43, grounding pin ground connection.
Through the above technical solutions, the data-interface 41 can be the interface of RS232 or RS422 or RS485 model, when with
When family needs to carry out data transmission by external data line, external data line can be linked into the data-interface 41, so
The data-interface 41 can receive the data-signal of external data line input afterwards, which is existed by data receiver circuit 42
It will receive the protection of second gas discharge tube 44 in transmission process, be then transferred to governor circuit 1, wherein governor circuit 1 can also lead to
It crosses data transmitting line 43 data-signal is sent to after data-interface 41 and be transferred to external data line, equally, data send electricity
Road 43 also will receive the protection of second gas discharge tube 44, and wherein second gas discharge tube 44 can use
The ceramic gas discharge tube of B3D090 model, the gas-discharge tube have grounding pin, are made by the effect of ground connection
The effect for obtaining Anti-surging is more preferable, two protection pin is respectively coupled on data transmitting line 43 and data receiver circuit 42,
Thus governor circuit 1 can be entered to avoid big voltage, it can be with direct short-circuit on the ceramic gas discharge tube, so also
External data line is avoided during transmission because lightning stroke or spread of voltage cause the high pressure of moment to damage master control electricity
Road 1 and the work for influencing whole equipment, further protect equipment, the stability for extending the service life of equipment and using.
As an improved specific embodiment, it is also coupled between the data receiver circuit 42 and data transmitting line 43
There is Transient Suppression Diode 45, the data receiver circuit 42 and data transmitting line 43 are also coupled with the 2nd PTC self- recoverage
One end of fuse 46, the 2nd PTC self-recovery fuse 46 on the data receiver circuit 42 is coupled to data-interface 41, separately
One end is coupled to the anode of Transient Suppression Diode 45, the 2nd PTC self-recovery fuse 46 on the data transmitting line 43
One end be coupled to the cathode that 41 other end of data-interface is coupled to Transient Suppression Diode 45.
Through the above technical solutions, being transferred to master control after the data-signal that data receiver circuit 42 receives external data line
When circuit 1, master control electricity can be also just entered after the protection of the 2nd PTC self-recovery fuse 46 and Transient Suppression Diode 45
In road 1, the 2nd PTC self-recovery fuse 46 being arranged in this way can enter in governor circuit 1 to avoid high current, cause to burn out
Governor circuit 1, so that entire circuit damage can not work normally, the Transient Suppression Diode 45 of setting can also be in second gas
Breakdown of the governor circuit 1 not by moment big voltage, dual surge protection, wherein second are further protected on the basis of discharge tube 44
Gas-discharge tube 44 is big using the such through-current capacity of B3D090 model, and breakdown voltage is high, while Transient Suppression Diode 45 is arranged also
It is fast that response may be implemented, the good effect of voltage clamping characteristic, the two cooperates, and the protective effect of circuit can be improved, make electricity
Road protecting effect is more preferable, and then is further ensured that the stability in use and service life of this Table top type gigabit Ethernet optical transmitter and receiver.
As an improved specific embodiment, the signal output apparatus 3 includes output port 31 and to be coupled to this defeated
The data conversion chip 32 of exit port 31, the data conversion chip 32 are further coupled to governor circuit 1, the data conversion chip
Electrostatic protection chip 33 is coupled between 32 and governor circuit 1.
Through the above technical solutions, governor circuit 1 can send this when governor circuit 1 sends data-signal to outside
Data-signal is to data conversion chip 32, and then the data conversion chip 32 sends data-signal to output port 31, the output
Port 31 can use RJ-45 interface, which is widely used in a communications device, use model this also increases equipment
It encloses, the electrostatic protection chip 33 of setting can use SLVU2.8-4 model, which connects in data conversion chip
Between 32 and governor circuit 1, stability when data-signal output can also be increased, the signal of output is avoided to occur fluctuating or wink
Between high pressure and lead to the equipment damage for being externally attached to the output port 31, the protection to external equipment thus can be improved
Effect avoids the running of this equipment abnormal and external equipment is caused to damage.
It further include indicating circuit 5 as an improved specific embodiment, the indicating circuit 5 includes multiple luminous two
Pole pipe 51, the anode of each light emitting diode 51 are coupled to external power supply, each hair after being coupled with current-limiting resistance 52
The cathode of optical diode 51 is coupled to governor circuit 1.
Through the above technical solutions, the indicating circuit 5 of setting can carry out luminous, master control under the control of governor circuit 1
Circuit 1 can control different light emitting diodes 51 according to the working condition of equipment, user can be prompted originally to set in this way
Standby working condition, can be improved human-computer interaction in this way, facilitate maintenance and the setting of function.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (5)
1. a kind of Table top type gigabit Ethernet optical transmitter and receiver, circuit board including shell and setting inside the shell, on the circuit board
With governor circuit (1), video input circuit (2) and signal output apparatus (3), the video input circuit (2) and signal are defeated
Circuit (3) is both coupled to governor circuit (1) out, which is characterized in that the video input circuit (2) include video interface (21) and
Video Quality Metric chip (22), the Video Quality Metric chip (22) has signal input pin and multiple data output pins, described
Video interface (21) is coupled with first gas discharge tube (24) and is grounded afterwards, after being also coupled to the first PTC self-recovery fuse (23)
The signal input pin of Video Quality Metric chip (22) is connect, the Video Quality Metric chip (22) is coupled with exclusion (25), the video
Multiple data output pins of conversion chip (22) are both coupled to the exclusion (25) and couple afterwards with governor circuit (1).
2. Table top type gigabit Ethernet optical transmitter and receiver according to claim 1, which is characterized in that further include being coupled to master control electricity
The simultaneous asynchronous data transmissions circuit (4) on road (1), the simultaneous asynchronous data transmissions circuit (4) include data-interface (41), data receiver electricity
Road (42) and data transmitting line (43), the data receiver circuit (42) and data transmitting line (43) are both coupled to master control electricity
Road (1) is also both coupled to data-interface (41), is coupled between the data receiver circuit (42) and data transmitting line (43)
Second gas discharge tube (44), there are two protection pin and a grounding pins for second gas discharge tube (44) tool, wherein
One protection pin is coupled to data receiver circuit (42), another protection pin is coupled to data transmitting line (43), ground connection
Pin ground connection.
3. Table top type gigabit Ethernet optical transmitter and receiver according to claim 2, which is characterized in that the data receiver circuit
(42) it has been also coupled between data transmitting line (43) Transient Suppression Diode (45), data receiver circuit (42) sum number
It is also coupled with the 2nd PTC self-recovery fuse (46) according to transmitting line (43), second on the data receiver circuit (42)
One end of PTC self-recovery fuse (46) is coupled to data-interface (41), and the other end is coupled to Transient Suppression Diode (45)
One end of anode, the 2nd PTC self-recovery fuse (46) on the data transmitting line (43) is coupled to data-interface (41)
The other end is coupled to the cathode of Transient Suppression Diode (45).
4. Table top type gigabit Ethernet optical transmitter and receiver according to claim 1 or 2 or 3, which is characterized in that the signal output
Circuit (3) includes output port (31) and the data conversion chip (32) for being coupled to the output port (31), the data conversion
Chip (32) is further coupled to governor circuit (1), and electrostatic guarantor is coupled between the data conversion chip (32) and governor circuit (1)
It protects chip (33).
5. Table top type gigabit Ethernet optical transmitter and receiver according to claim 1 or 2 or 3, which is characterized in that further include instruction electricity
Road (5), the indicating circuit (5) include multiple light emitting diodes (51), the anode coupling of each light emitting diode (51)
External power supply is coupled to after limited leakage resistance (52), the cathode of each light emitting diode (51) is coupled to governor circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820622525.2U CN208128459U (en) | 2018-04-27 | 2018-04-27 | A kind of Table top type gigabit Ethernet optical transmitter and receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820622525.2U CN208128459U (en) | 2018-04-27 | 2018-04-27 | A kind of Table top type gigabit Ethernet optical transmitter and receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208128459U true CN208128459U (en) | 2018-11-20 |
Family
ID=64187142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820622525.2U Expired - Fee Related CN208128459U (en) | 2018-04-27 | 2018-04-27 | A kind of Table top type gigabit Ethernet optical transmitter and receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208128459U (en) |
-
2018
- 2018-04-27 CN CN201820622525.2U patent/CN208128459U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20200427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |