CN202565275U - Photoelectric converter having plastic optical fiber port and RS 232 communication port - Google Patents
Photoelectric converter having plastic optical fiber port and RS 232 communication port Download PDFInfo
- Publication number
- CN202565275U CN202565275U CN2012202126744U CN201220212674U CN202565275U CN 202565275 U CN202565275 U CN 202565275U CN 2012202126744 U CN2012202126744 U CN 2012202126744U CN 201220212674 U CN201220212674 U CN 201220212674U CN 202565275 U CN202565275 U CN 202565275U
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- port
- optical fiber
- plastic optical
- plastic fiber
- fiber port
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Abstract
The utility model discloses a photoelectric converter having a plastic optical fiber port and an RS 232 communication port. The photoelectric converter having the plastic optical fiber port and the RS 232 communication port includes the plastic optical fiber port and the RS 232 communication port. The plastic optical fiber port includes a receiving terminal and a transmitting terminal, and also includes a level switch circuit connecting with the receiving terminal of the plastic optical fiber port and a drive amplifying circuit connecting with the transmitting terminal of the plastic optical fiber port. An input terminal of the drive amplifying circuit connects with the level switch circuit. The photoelectric converter having the plastic optical fiber port and the RS 232 communication port provided by the utility model can convert optical signals of a plastic optical fiber and electric signals in a form of RS 232, and has characteristics of high anti-interference capability, long transmission range, high rate, good stability, small size, convenient installation and the like. The photoelectric converter having the plastic optical fiber port and the RS 232 communication port provided by the utility model is suitable for systems for power control, traffic control, industrial automatic control, field production management, field monitoring control and the like that have strict requirements, and is a data conversion and connection device having high cost performance and high reliability.
Description
Technical field
The utility model relates to a kind of optical-electrical converter, the optical-electrical converter that the signal of telecommunication of a kind of light signal and RS232 form to plastic fiber of more specifically saying so is changed.
Background technology
In the prior art, RS-232 (ANSI/EIA-232 standard) is the standard connected in series on IBM-PC and the compatible thereof.Can be used for many purposes,, be widely used in occasions such as various Industry Control, fabrication line process control and traffic control simultaneously such as connecting mouse, printer or Modem.Since the improvement of driving and line, the usually overproof value of the transmission length of RS-232 or speed in the practical application, but RS-232 serial communication maximum distance is 20 meters.Shortcomings such as the ubiquitous problem of RS232 is that transmission rate is low a little less than the antijamming capability at present, and distance is short; And adopt plastic fiber (POF) as transmission medium, characteristics such as have that antijamming capability is strong, long transmission distance, speed height, good stability, volume are little, easy for installation.Being applicable in the strict system such as electric power control, traffic control, industrial automation control, in-situ production management, on-site supervision control, is the high data transaction connection device of a kind of cost performance superior in reliability.
Yet, in the prior art, lack the optical-electrical converter that a kind of ability is changed to the signal of telecommunication of the light signal of plastic fiber and RS232 form.
The utility model content
The purpose of the utility model is to overcome the defective of prior art, the optical-electrical converter that provides a kind of ability to change to the signal of telecommunication of the light signal of plastic fiber and RS232 form.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
The optical-electrical converter of a kind of plastic fiber and RS232 PORT COM; Comprise plastic fiber port and RS232 PORT COM; Described plastic fiber port comprises receiving terminal and transmitting terminal; Also comprise the level shifting circuit that is connected with the receiving terminal of plastic fiber port, with the driving amplifying circuit that the transmitting terminal of plastic fiber port is connected, the input of said driving amplifying circuit is connected with level shifting circuit.
Its further technical scheme is: also comprise the power module and the indicator light circuit that are connected with level shifting circuit.
Its further technical scheme is: described level shifting circuit comprises the MAX232A cake core.
Its further technical scheme is: described driving amplifying circuit comprises the SN75451-1 cake core.
Its further technical scheme is: described power module comprises the LM25755-5.0 cake core.
The utility model beneficial effect compared with prior art is: the utility model can be changed to the light signal of plastic fiber and the signal of telecommunication of RS232 form, have antijamming capability by force, characteristics such as long transmission distance, speed height, good stability, volume be little, easy for installation.Being applicable in the strict system such as electric power control, traffic control, industrial automation control, in-situ production management, on-site supervision control, is the high data transaction connection device of a kind of cost performance superior in reliability.
Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.
Description of drawings
Fig. 1 is the circuit block diagram of the optical-electrical converter specific embodiment of the utility model plastic fiber and RS232 PORT COM;
Fig. 2 is the circuit theory diagrams of the optical-electrical converter specific embodiment of the utility model plastic fiber and RS232 PORT COM.
Description of reference numerals
1 plastic fiber port one, 1 receiving terminal
12 transmitting terminals, 2 RS232 PORT COMs
3 drive amplifying circuit 4 power modules
5 indicator light circuits, 6 level shifting circuits
Embodiment
In order more to make much of the technology contents of the utility model, below in conjunction with specific embodiment the technical scheme of the utility model is further introduced and explanation, but be not limited to this.
As shown in Figure 1; The optical-electrical converter of a kind of plastic fiber of the utility model and RS232 PORT COM; Comprise plastic fiber port one and RS232 PORT COM 2; The plastic fiber port one comprises receiving terminal 11 and transmitting terminal 12, also comprises the level shifting circuit 6 that is connected with the receiving terminal 11 of plastic fiber port one, the driving amplifying circuit 3 that is connected with the transmitting terminal 12 of plastic fiber port one, and the input that drives amplifying circuit 3 is connected with level shifting circuit 6.Also comprise the power module 4 and indicator light circuit 5 that are connected with level shifting circuit 6.
As shown in Figure 2; Level shifting circuit has adopted MAX232A cake core (being the IC1 among Fig. 2), and P1 is the RS232 PORT COM, and T2out is the RS232 signal output part; R2in is the RS232 signal input part; T2in is signal input port and is connected with HFBR X5XXZ-R (being the receiving terminal of plastic fiber) that T2out is the signal emission port, drives amplifying circuit and adopts the SN75451-1 cake core; 1B port wherein is connected with T2out, and the 1Y port is connected with HFBR X5XXZ-T (being the transmitting terminal of plastic fiber).In addition, power module has adopted the LM25755-5.0 cake core and has been attached thereto the voltage-stabilizing device that connects, and the P2 among the figure is a power interface.
Operation principle wherein is: the light signal of plastic fiber imports into from receiving terminal HFBR X5XXZ-R, becomes the signal of telecommunication and transfers to level transferring chip MAX232A, and the signal of telecommunication that converts the RS232 form to is gone out through the RS232 port transmission; The signal of telecommunication process RS232 port transmission of RS232 form is to level transferring chip MAX232A; Through being sent to the SN75451-1 cake core that drives in the amplifying circuit after the conversion; Its signal of telecommunication is carried out power amplification; The signal of telecommunication after amplifying becomes light signal through transmitting terminal HFBR X5XXZ-T, launches through plastic fiber.In use, adopt the electronic equipment of RS232 form, all adopt such optical-electrical converter at its connection two ends, the middle plastic fiber that uses connects, and can prolong communication distance, and have very strong antijamming capability.
In sum, the utility model can be changed to the light signal of plastic fiber and the signal of telecommunication of RS232 form, have antijamming capability by force, characteristics such as long transmission distance, speed height, good stability, volume be little, easy for installation.Being applicable in the strict system such as electric power control, traffic control, industrial automation control, in-situ production management, on-site supervision control, is the high data transaction connection device of a kind of cost performance superior in reliability.
The above-mentioned technology contents that only further specifies the utility model with embodiment; So that the reader is more readily understood; But do not represent the execution mode of the utility model to only limit to this, any technology of doing according to the utility model is extended or recreation, all receives the protection of the utility model.The protection range of the utility model is as the criterion with claims.
Claims (5)
1. the optical-electrical converter of plastic fiber and RS232 PORT COM; Comprise plastic fiber port and RS232 PORT COM; Described plastic fiber port comprises receiving terminal and transmitting terminal; It is characterized in that also comprising the level shifting circuit that is connected with the receiving terminal of plastic fiber port, with the driving amplifying circuit that the transmitting terminal of plastic fiber port is connected, the input of said driving amplifying circuit is connected with level shifting circuit.
2. the optical-electrical converter of plastic fiber according to claim 1 and RS232 PORT COM is characterized in that also comprising the power module and the indicator light circuit that are connected with level shifting circuit.
3. the optical-electrical converter of plastic fiber according to claim 2 and RS232 PORT COM is characterized in that described level shifting circuit comprises the MAX232A cake core.
4. the optical-electrical converter of plastic fiber according to claim 2 and RS232 PORT COM is characterized in that described driving amplifying circuit comprises the SN75451-1 cake core.
5. the optical-electrical converter of plastic fiber according to claim 2 and RS232 PORT COM is characterized in that described power module comprises the LM25755-5.0 cake core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202126744U CN202565275U (en) | 2012-05-11 | 2012-05-11 | Photoelectric converter having plastic optical fiber port and RS 232 communication port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202126744U CN202565275U (en) | 2012-05-11 | 2012-05-11 | Photoelectric converter having plastic optical fiber port and RS 232 communication port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202565275U true CN202565275U (en) | 2012-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202126744U Expired - Fee Related CN202565275U (en) | 2012-05-11 | 2012-05-11 | Photoelectric converter having plastic optical fiber port and RS 232 communication port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202565275U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341203A (en) * | 2016-10-18 | 2017-01-18 | 潘致远 | Multi-program addressable fiber transmission public broadcast system |
| CN111245515A (en) * | 2020-01-10 | 2020-06-05 | 深圳市新威尔电子有限公司 | Device and method for signal long-distance transmission |
-
2012
- 2012-05-11 CN CN2012202126744U patent/CN202565275U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341203A (en) * | 2016-10-18 | 2017-01-18 | 潘致远 | Multi-program addressable fiber transmission public broadcast system |
| CN111245515A (en) * | 2020-01-10 | 2020-06-05 | 深圳市新威尔电子有限公司 | Device and method for signal long-distance transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Huaying Century Photoelectric Technology Co., Ltd. Assignor: Wu Qi Contract record no.: 2012440020388 Denomination of utility model: Photoelectric converter having plastic optical fiber port and RS 232 communication port Granted publication date: 20121128 License type: Exclusive License Record date: 20121219 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20180511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |