CN202772899U - Multi-mode fiber transmitting and receiving communication circuit - Google Patents
Multi-mode fiber transmitting and receiving communication circuit Download PDFInfo
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- CN202772899U CN202772899U CN201220485059.0U CN201220485059U CN202772899U CN 202772899 U CN202772899 U CN 202772899U CN 201220485059 U CN201220485059 U CN 201220485059U CN 202772899 U CN202772899 U CN 202772899U
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- multimode fiber
- electric capacity
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Abstract
The utility model discloses a multi-mode fiber transmitting and receiving communication circuit which includes a power supply, two power supply isolating circuits, a fiber transmitting circuit and a fiber receiving circuit. The power supply is connected with the fiber transmitting circuit and the fiber receiving circuit via the two power supply isolating circuits respectively. The multi-mode fiber transmitting and receiving communication circuit uses the fiber material as the transmission medium, so the material source is abundant and environmental friendly, and consequently the metallic copper consumption is reduced. The size of the fiber is small, and the fiber is light, so the laying and the transportation of the communication line are facilitated. The fiber communication is not influenced by the external strong electromagnetic wave, so the reliability and the stability of the communication link are high, the communication rate is high, and the signal terminal matching is avoided.
Description
Technical field
The utility model relates to a kind of telecommunication circuit, particularly a kind of multimode fiber transmitting-receiving telecommunication circuit.
Background technology
Telecommunication circuit adopts the electric signal transmission mode absolutely mostly at present, with cable as transmission medium, because signal of communication is weak electric signal, but communication line can't be accomplished again to separate fully with the forceful electric power signal of system in laying, therefore there is the impact of strong electromagnetic in the electrical signal communication mode, telecommunication cable adopts shielded cable mostly, and cost price is high, and the laying difficulty is large; Easily monitoring eavesdropping in the electric signal transmission, its confidentiality and encryption are poor.The electrical signal communication loss is large, and its communication distance is subjected to communication speed to affect restriction, need be equipped with communication terminal resistance for solving the transmitting signal problem.
Summary of the invention
Technical problem to be solved in the utility model is, not enough for prior art, a kind of multimode fiber transmitting-receiving telecommunication circuit is provided, solves existing fiber transmitting-receiving telecommunication circuit and have the problem that electromagnetic interference, information privacy are poor, easily be ravesdropping, and satisfy apart from 2KM with interior high-speed communication requirement.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of multimode fiber transmitting-receiving telecommunication circuit, comprise power supply, two power isolation circuits, the optical fiber transtation mission circuit, optical receiving circuit, described power supply by two power isolation circuits respectively with the optical fiber transtation mission circuit, optical receiving circuit connects, described two power isolation circuit structures are identical, described power isolation circuit comprises two tantalum electric capacity, two shunt capacitances, two line skill wire-wound inductors, described the first tantalum electric capacity, the first shunt capacitance, the second tantalum electric capacity, the second shunt capacitance is in parallel successively, described two lines skill wire-wound inductor accesses the first shunt capacitance, between the second tantalum electric capacity, described two lines skill wire-wound inductor is in parallel; Described optical fiber transtation mission circuit comprises AVAGO multimode fiber transmitter, this schmitt trigger, and described fiber optic transmitter is connected with this schmitt trigger by the power wire jumper; Described optical receiving circuit adopts AVAGO multimode fiber receiver.
Compared with prior art, the beneficial effect that the utility model has is: the utility model adopts fiber optic materials as transmission medium, and the source of its material is abundant, environmental protection, and the use that is conducive to save metallic copper; Fiber size is little, and is lightweight, is convenient to laying and the transportation of communication line.Optical fiber communication itself is not subjected to the interference of outside strong electromagnetic, and communication link reliability and stability are high, and traffic rate is high, need not to carry out the Signal Terminal coupling; The utility model adopts Coilcraft Inc.'s high-performance wire-wound inductor and AVX electric capacity to realize optical fiber communication power supply and system power supply isolating and protecting, guarantee communication power supply low ripple noise, reliable and stable, prevent that intrasystem interference signal from introducing optical fiber telecommunications system by power supply and ground wire, effectively avoid the shake of signal; Adopt the AVAGO LED of company multimode fiber transceiver, be not subjected to outside electromagnetic interference; The transmitted power of power wire jumper realization gear is allocated flexibly.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram;
Fig. 2 is the utility model one embodiment power isolation circuit schematic diagram;
Fig. 3 is the utility model one embodiment optical fiber transtation mission circuit schematic diagram;
Fig. 4 is the utility model one embodiment optical receiving circuit schematic diagram.
Embodiment
Such as Fig. 1-shown in Figure 4, the utility model one embodiment comprises power supply, two power isolation circuits, the optical fiber transtation mission circuit, optical receiving circuit, described power supply by two power isolation circuits respectively with the optical fiber transtation mission circuit, optical receiving circuit connects, described two power isolation circuit structures are identical, described power isolation circuit comprises two tantalum electric capacity, two shunt capacitances, two line skill wire-wound inductors, described the first tantalum electric capacity, the first shunt capacitance, the second tantalum electric capacity, the second shunt capacitance is in parallel successively, described two lines skill wire-wound inductor accesses the first shunt capacitance, between the second tantalum electric capacity, described two lines skill wire-wound inductor is in parallel; Described optical fiber transtation mission circuit comprises fiber optic transmitter, this schmitt trigger, and described fiber optic transmitter is connected with this schmitt trigger by the power wire jumper; Described optical receiving circuit adopts AVAGO multimode fiber receiver.
As shown in Figure 2, VCC is the system power supply power supply, VDD_TX, GND_TX are that the communication after the isolation processing sends power supply and the transmission ground of communicating by letter, VDD_RX, GND_RX are communications reception power supply and the communications reception ground after the isolation processing, L1, L2 are line skill wire-wound inductor 1008LS-122, C1, C3 are AVX tantalum electric capacity, and C2, C4 are the lamella shunt capacitance.
As shown in Figure 3, F1 is AVAGO multimode fiber transmitter HFBR-1414TZ, and T1 is that transition suppresses clamp diode SJMA6.8CA, U1 is six anti-phase this schmitt trigger 74HC14, J1 is the power wire jumper, and TTL_TX is the system communication transmitted signal, and R1, R3 are that power sends current-limiting resistance.
As shown in Figure 4, F2 is AVAGO multimode fiber receiver HFBR-2412TZ, and T2 is that transition suppresses clamp diode SJMA6.8CA, and U1 is six anti-phase this schmitt trigger 74HC14, and J1 is the power wire jumper, and TTL_TX is the system communication transmitted signal.
The ingenious clamping performance that utilizes TVS pipe (transition inhibition clamp diode) of optical fiber transtation mission circuit and optical receiving circuit has been realized the safety requirement of optical fiber transceiving device.
Claims (6)
1. a multimode fiber is received and dispatched telecommunication circuit, comprise power supply, two power isolation circuits, the optical fiber transtation mission circuit, optical receiving circuit, described power supply by two power isolation circuits respectively with the optical fiber transtation mission circuit, optical receiving circuit connects, it is characterized in that, described two power isolation circuit structures are identical, described power isolation circuit comprises two tantalum electric capacity, two shunt capacitances, two line skill wire-wound inductors, described the first tantalum electric capacity, the first shunt capacitance, the second tantalum electric capacity, the second shunt capacitance is in parallel successively, described two lines skill wire-wound inductor accesses the first shunt capacitance, between the second tantalum electric capacity, described two lines skill wire-wound inductor is in parallel; Described optical fiber transtation mission circuit comprises AVAGO multimode fiber transmitter, this schmitt trigger, and described fiber optic transmitter is connected with this schmitt trigger by the power wire jumper; Described optical receiving circuit adopts AVAGO multimode fiber receiver.
2. multimode fiber transmitting-receiving telecommunication circuit according to claim 1 is characterized in that, described tantalum electric capacity is AVX tantalum electric capacity.
3. multimode fiber transmitting-receiving telecommunication circuit according to claim 1 is characterized in that, described shunt capacitance is the lamella shunt capacitance.
4. multimode fiber transmitting-receiving telecommunication circuit according to claim 1 is characterized in that, described line skill wire-wound inductor model is 1008LS-122.
5. multimode fiber transmitting-receiving telecommunication circuit according to claim 1 is characterized in that, described AVAGO multimode fiber transmitter model is HFBR-1414TZ; Described this schmitt trigger is six anti-phase this schmitt trigger 74HC14.
6. multimode fiber transmitting-receiving telecommunication circuit according to claim 1 is characterized in that, described AVAGO multimode fiber receiver model is HFBR-2412TZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220485059.0U CN202772899U (en) | 2012-09-21 | 2012-09-21 | Multi-mode fiber transmitting and receiving communication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220485059.0U CN202772899U (en) | 2012-09-21 | 2012-09-21 | Multi-mode fiber transmitting and receiving communication circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772899U true CN202772899U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220485059.0U Expired - Lifetime CN202772899U (en) | 2012-09-21 | 2012-09-21 | Multi-mode fiber transmitting and receiving communication circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104330A (en) * | 2017-02-14 | 2017-08-29 | 珠海普生医疗科技有限公司 | A kind of jamproof medical cable |
| CN109779892A (en) * | 2019-01-18 | 2019-05-21 | 广东美的制冷设备有限公司 | Electrically-controlled component and air conditioner |
-
2012
- 2012-09-21 CN CN201220485059.0U patent/CN202772899U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104330A (en) * | 2017-02-14 | 2017-08-29 | 珠海普生医疗科技有限公司 | A kind of jamproof medical cable |
| CN109779892A (en) * | 2019-01-18 | 2019-05-21 | 广东美的制冷设备有限公司 | Electrically-controlled component and air conditioner |
| CN109779892B (en) * | 2019-01-18 | 2020-12-11 | 广东美的制冷设备有限公司 | Electric control assembly and air conditioner |
| JP2022519175A (en) * | 2019-01-18 | 2022-03-22 | 広東美的制冷設備有限公司 | Electrically controlled assembly and air conditioner |
| JP7250935B2 (en) | 2019-01-18 | 2023-04-03 | 広東美的制冷設備有限公司 | Electrical control assembly and air conditioner |
| US11994328B2 (en) | 2019-01-18 | 2024-05-28 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Electric control assembly and air conditioner |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |