CN202145641U

CN202145641U - Photoelectric isolator

Info

Publication number: CN202145641U
Application number: CN201120189113U
Authority: CN
Inventors: 彭德胜; 李鸣放
Original assignee: GUANGZHOU TIEDA INFORMATION TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU TIEDA INFORMATION TECHNOLOGY Co Ltd
Priority date: 2011-06-07
Filing date: 2011-06-07
Publication date: 2012-02-15
Anticipated expiration: 2021-06-07

Abstract

The utility model discloses a photoelectric isolator, comprising an input photoelectric conversion module and an output photoelectric conversion module, wherein the input end of the photoelectric conversion module is bi-directionally connected with an external data transmitting end, the corresponding output end of the output photoelectric conversion module is bi-directionally connected with an external data receiving end, and the output end of the input photoelectric conversion module is also bi-directionally connected with the input end of the output photoelectric conversion module through two optical fibers. The photoelectric isolator employs a photoelectric coupling isolation measure, thereby effectively preventing the entrance of destructive interference signals from resulting in E1 signal distortion, and stably transmitting the E1 signals; is also provided with an RS232 interface module, thereby being convenient for transmitting or receiving RS232 serial port signals; and is provided with an RS232 or RJ45 interface mode management unit thereby satisfying the equipment functionalization application demands. Further, an output interface module can also be arranged to be an E1BNC interface module or an E1V.35 interface module, and when the input and the output are both a BNC interface, it is unnecessary to distinguish which portion is the input photoelectric conversion module or which portion is the output photoelectric conversion module, thereby being very convenient for using.

Description

A kind of photoisolator

Technical field

The utility model relates to photoelectric isolating circuit, the IC-components technical field of E1 communication line, relates in particular to a kind of photoisolator.

Background technology

Relatively carry out the E1 signal transmission between two signaling points under the rugged environment at on-the-spot these of railway, because the various interference that exist, the E1 signal is vulnerable to disturb in transmission course very much, and distortion or distortion take place the E1 signal that causes transmitting.

In addition, use between the signaling point of the apart from each other that longer cable connects,, cause the ground loop current, circuit is formed differential mode disturbance volt, cause local communication unstable often because of the ground wire potential difference of signaling point to realize the transmission of E1 signal.

So, be badly in need of a kind of E1 signal that can effectively reduce and between two signaling points, produced distortion or distortion because of disturbing in the transmission course, and transmission equipment that can stable transfer E1 signal.

The utility model content

Between two signaling points, because of disturbed produce distortion or distortion in the transmission course in order to obtain this E1 signal that can effectively reduce, and transmission equipment that can stable transfer E1 signal, the utility model provides a new technical solution, particular content is following:

A kind of photoisolator comprises input photoelectric conversion module and output photoelectric conversion module; The two-way connection external data of said input photoelectric conversion module input transmitting terminal; The two-way connection external data of corresponding said output photoelectric conversion module output receiving terminal; And said input photoelectric conversion module output also connects output photoelectric conversion module input through two optical fiber bidirectionals.

The utility model has adopted photoelectricity coupling quarantine measures; Realize the isolation of electricity → light → electricity; It can destroy the entering of interference signal effectively, and being electrically connected of two circuit (promptly importing photoelectric conversion module and output photoelectric conversion module) separated the loop that cut-out possibly form; Make them separate, improve the interference free performance of transmission equipment.

Said input photoelectric conversion module comprises administrative unit and business unit; The said business unit of the two-way connection of said administrative unit.

Said business unit comprises optical interface module, E1 bnc interface module and multiplexing process module; The two-way reception external data of said E1 bnc interface module input transmitting terminal; Said E1 bnc interface module output is also through the two-way connection optical interface of multiplexing process module module input; Said optical interface module output also connects the output photoelectric conversion module through two optical fiber bidirectionals.

Said business unit also comprises a RS232 interface module; The outside 232 signal transmission ends of the two-way connection of said RS232 interface module input; The also two-way connection multiplexing processing module of RS232 interface module output.Be used for transmitting or receiving the RS232 rs 232 serial interface signal.

Said administrative unit comprises webmaster RS232 or RJ45 interface module and MCU module; Said MCU module is two-way connection multiplexing processing module and webmaster RS232 or RJ45 interface module simultaneously; Said webmaster RS232 or the also two-way connection external management of RJ45 interface module data sending terminal.

Said output photoelectric conversion module comprises another administrative unit and another business unit; Said another business unit of the two-way connection of said another administrative unit.

Said another business unit comprises another optical interface module, interface module and another multiplexing process module; The two-way reception external data of said interface module output receiving terminal; Said interface module input is also through said another optical interface module output of the two-way connection of said another multiplexing process module; Said another optical interface module input also connects the optical interface module output of input photoelectric conversion module through two optical fiber bidirectionals.

Said interface module is V.35 interface module or another E1 bnc interface module of E1.When input/output interface module is E1 bnc interface module; The input photoelectric conversion module is just the same with the structure of output photoelectric conversion module; The input photoelectric conversion module is reciprocity with two E1 bnc interface modules of output photoelectric conversion module; Which need not be distinguished partly is that input photoelectric conversion module or which part is the output photoelectric conversion module, and input photoelectric conversion module and output photoelectric conversion module can be exchanged to use and transmit or receive the E1 signal.

Said another business unit also comprises another RS232 interface module; Outside 232 signal receiving ends of the two-way connection of said another RS232 interface module output; Said another multiplexing process module of the also two-way connection of said another RS232 interface module input.Be used for receiving or transmitting the RS232 rs 232 serial interface signal.

Said another administrative unit comprises another webmaster RS232 or RJ45 interface module and another MCU module; Said another multiplexing process module of said another MCU module two-way connection simultaneously and another webmaster RS232 or RJ45 interface module; Said another webmaster RS232 or the also two-way connection external management of RJ45 interface module data receiver.

The utility model produces following beneficial effect:

The utility model has adopted photoelectricity coupling quarantine measures, realizes the isolation of electricity → light → electricity, has prevented effectively that not only the entering that destroys interference signal from causing E1 signal distortion or distortion, more stably transmits the E1 signal; And, also be provided with the RS232 interface module, can transmit or receive the RS232 rs 232 serial interface signal easily, and be provided with the administrative unit of RS232 or RJ45 interface modes, satisfy the user demand of user to the equipment multifunction.In addition; The interface module of the utility model also can be made as V.35 interface module of E1 bnc interface module or E1; Which need not distinguish during all for bnc interface when input and output partly is that input photoelectric conversion module or which partly are the output photoelectric conversion module, very easy to use.

Description of drawings

Fig. 1 is the structural representation of first kind of execution mode of the utility model;

Fig. 2 is the structural representation of second kind of execution mode of the utility model.

Embodiment

As illustrated in fig. 1 and 2, the utility model mainly comprises input photoelectric conversion module and output photoelectric conversion module; The two-way connection external data of the input of said input photoelectric conversion module transmitting terminal; The two-way connection external data of the output receiving terminal of corresponding said output photoelectric conversion module; And the output of said input photoelectric conversion module also connects the input of output photoelectric conversion module through two optical fiber bidirectionals.

Particularly, the utility model input photoelectric conversion module comprises mainly that with the output photoelectric conversion module two comprise administrative unit and two business unit; One of them administrative unit and a business unit are arranged on input photoelectric conversion module inside, and another administrative unit is arranged on output photoelectric conversion module inside with another business unit.Inner or the inner all two-way connection of the administrative unit business unit separately of output photoelectric conversion module of input photoelectric conversion module.

The inner business unit of input photoelectric conversion module comprises an optical interface module, an E1 bnc interface module and a multiplexing process module; The two-way reception external data of the input transmitting terminal of said E1 bnc interface module; The output of said E1 bnc interface module also passes through the input of the two-way connection optical interface of multiplexing process module module; The output of said optical interface module also connects the output photoelectric conversion module through two optical fiber bidirectionals.

The inner business unit of input photoelectric conversion module also comprises a RS232 interface module; The outside 232 signal transmission ends of the two-way connection of the input of said RS232 interface module; The inner multiplexing process module of the output of RS232 interface module also two-way connection input photoelectric conversion module.Be used for transmitting or receiving the RS232 rs 232 serial interface signal.

The inner administrative unit of said input photoelectric conversion module comprises a webmaster RS232 or a RJ45 interface module and a MCU module; Inner multiplexing process module and webmaster RS232 or the RJ45 interface module of said MCU module simultaneously two-way connection input photoelectric conversion module; Said webmaster RS232 or the also two-way connection external management of RJ45 interface module data sending terminal.

The inner business unit of output photoelectric conversion module then comprises another optical interface module, E1 V.35 interface module (shown in Figure 1) or another E1 bnc interface module (shown in Figure 2) and another multiplexing process module; Said E1 is the two-way reception external data of the output receiving terminal of interface module (shown in Figure 1) or another E1 bnc interface module (shown in Figure 2) V.35; Said E1 is the input output through said another optical interface module of the said two-way connection of another multiplexing process module then of interface module (shown in Figure 1) or another E1 bnc interface module (shown in Figure 2) V.35; The input of said another optical interface module also connects the output of the optical interface module of input photoelectric conversion module through two optical fiber bidirectionals.

When interface module is E1 bnc interface module (shown in Figure 2); The input photoelectric conversion module is just the same with the structure of output photoelectric conversion module; The input photoelectric conversion module is reciprocity with two E1 bnc interface modules of output photoelectric conversion module; Which need not be distinguished partly is that input photoelectric conversion module or which part is the output photoelectric conversion module, and input photoelectric conversion module and output photoelectric conversion module can be exchanged to use and transmit or receive the E1 signal.

The inner business unit of output photoelectric conversion module also comprises another RS232 interface module; Outside 232 signal receiving ends of the two-way connection of the output of said another RS232 interface module; The inner multiplexing process module of the input of said another RS232 interface module also two-way connection output photoelectric conversion module receives or transmits the RS232 rs 232 serial interface signal.

The inner administrative unit of output photoelectric conversion module is then drawn together another webmaster RS232 or RJ45 interface module and another MCU module; Inner multiplexing process module and said another webmaster RS232 or the RJ45 interface module of the said output photoelectric conversion module of said another MCU module two-way connection simultaneously; Said another webmaster RS232 or the also two-way connection external management of RJ45 interface module data receiver.

For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of the utility model claim all according to the technical scheme and the design of above description.

Claims

1. a photoisolator is characterized in that, comprises input photoelectric conversion module and output photoelectric conversion module; The two-way connection external data of said input photoelectric conversion module input transmitting terminal; The two-way connection external data of corresponding said output photoelectric conversion module output receiving terminal; And said input photoelectric conversion module output also connects output photoelectric conversion module input through two optical fiber bidirectionals.

2. photoisolator as claimed in claim 1 is characterized in that, said input photoelectric conversion module comprises administrative unit and business unit; The said business unit of the two-way connection of said administrative unit.

3. photoisolator as claimed in claim 2 is characterized in that, said business unit comprises optical interface module, E1 bnc interface module and multiplexing process module; The two-way reception external data of said E1 bnc interface module input transmitting terminal; Said E1 bnc interface module output is also through the two-way connection optical interface of multiplexing process module module input; Said optical interface module output also connects the output photoelectric conversion module through two optical fiber bidirectionals.

4. input photoisolator as claimed in claim 3 is characterized in that, said business unit also comprises a RS232 interface module; The outside 232 signal transmission ends of the two-way connection of said RS232 interface module input; The also two-way connection multiplexing processing module of RS232 interface module output.

5. photoisolator as claimed in claim 2 is characterized in that, said administrative unit comprises webmaster RS232 or RJ45 interface module and MCU module; Said MCU module is two-way connection multiplexing processing module and webmaster RS232 or RJ45 interface module simultaneously; Said webmaster RS232 or the also two-way connection external management of RJ45 interface module data sending terminal.

6. photoisolator as claimed in claim 1 is characterized in that, said output photoelectric conversion module comprises another administrative unit and another business unit; Said another business unit of the two-way connection of said another administrative unit.

7. photoisolator as claimed in claim 6 is characterized in that, said another business unit comprises another optical interface module, interface module and another multiplexing process module; The two-way reception external data of said interface module output receiving terminal; Said interface module input is also through said another optical interface module output of the two-way connection of said another multiplexing process module; The input of said another optical interface module also connects the optical interface module output of input photoelectric conversion module through two optical fiber bidirectionals.

8. photoisolator as claimed in claim 7 is characterized in that, said interface module is V.35 interface module or another E1 bnc interface module of E1.

9. input photoisolator as claimed in claim 7 is characterized in that, said another business unit also comprises another RS232 interface module; Outside 232 signal receiving ends of the two-way connection of said another RS232 interface module output; Said another multiplexing process module of the also two-way connection of said another RS232 interface module input.

10. photoisolator as claimed in claim 6 is characterized in that, said another administrative unit comprises another webmaster RS232 or RJ45 interface module and another MCU module; Said another multiplexing process module of said another MCU module two-way connection simultaneously and another webmaster RS232 or RJ45 interface module; Said another webmaster RS232 or the also two-way connection external management of RJ45 interface module data receiver.