CN205566315U - Optical sender of mouth is intercutted in area - Google Patents
Optical sender of mouth is intercutted in area Download PDFInfo
- Publication number
- CN205566315U CN205566315U CN201620135373.4U CN201620135373U CN205566315U CN 205566315 U CN205566315 U CN 205566315U CN 201620135373 U CN201620135373 U CN 201620135373U CN 205566315 U CN205566315 U CN 205566315U
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- CN
- China
- Prior art keywords
- mouth
- control circuit
- intercuts
- mgc
- automatic control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an optical sender of mouth is intercutted in area. The utility model discloses a radio frequency input (1), high buffer (2), attenuator (3), intercut mouthful (4), two -way blender (5) and the signal of telecommunication and change the light signal emission circuit group, radio frequency input (1) high buffer (2) attenuator (3) and the input electricity connection in proper order of two -way blender (5), intercut mouthful (4) with the input electricity of two -way blender (5) is connected, the output of two -way blender (5) with the signal of telecommunication changes light signal emission circuit group electricity and connects, radio frequency input (1) with the isolation that intercuts mouthful (4) is not less than 50dB. The utility model is suitable for a broadcasting and TV broadcasting photoelectricity communications field.
Description
Technical field
This utility model relates to a kind of band and intercuts the optical sender of mouth.
Background technology
In broadcasting and TV broadcast photoelectric communication field, radio frequency optical sender is a kind of requisite equipment, but traditional radio frequency optical sender is when needs intercut signal when, needing to be converted into optical signal intercutting radiofrequency signal through optical sender, then the optical signal with main road carries out intercutting of signal through Overlay multiplexer.So bring the problem that cost is high and Overall Power Consumption is big.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, it is provided that a kind of reasonable in design, easy to use, with low cost be capable of rf signal and intercut both signals of telecommunication and unite two into one and the band that will not interfere with each other intercuts the optical sender of mouth.
The technical scheme is that this utility model of this utility model includes rf inputs, high isolation amplifier, attenuator, intercut mouth, No. two blenders and the signal of telecommunication turn optical signal launch circuit group, described rf inputs, described high isolation amplifier, the input of described attenuator and described No. two blenders is sequentially connected electrically, the described mouth that intercuts electrically connects with the input of described No. two blenders, the outfan of described No. two blenders turns optical signal launch circuit group and electrically connects with the described signal of telecommunication, described rf inputs and the described isolation of mouth that intercuts are not less than 50dB.
The described signal of telecommunication turns optical signal launch circuit group and includes main circuit and monitoring control circuit, described main circuit includes that the first splitter, electrically controlled attenuator, low-noise amplifier, power amplifier, the second splitter, predistortion circuit, laser instrument and the light signal output end being sequentially connected electrically, the input of described first splitter electrically connect with the outfan of described No. two blenders.
Also electrically connect at described first splitter and be provided with an independent test port.
Described monitoring control circuit includes radio frequency power detector, microprocessor, condition monitoring unit, AGC/MGC switch, MGC hand regulator, ATC automatic control circuit and APC automatic control circuit, described microprocessor respectively with described radio frequency power detector, described condition monitoring unit, described AGC/MGC switch, described ATC automatic control circuit and the electrical connection of APC automatic control circuit, described MGC hand regulator electrically connects with described AGC/MGC switch, described AGC/MGC switch electrically connects with described electrically controlled attenuator, the outfan of described ATC automatic control circuit and APC automatic control circuit electrically connects with described laser instrument respectively.
The beneficial effects of the utility model are: in this utility model, owing to adding high isolation amplifier at rf inputs, intercutting mouth and No. two blenders, radio frequency inputs and intercuts the isolation of mouth more than 50db, the radiofrequency signal intercutting mouth is made to disturb main road radiofrequency signal hardly, capacity of resisting disturbance is strong, and intercut the signal of telecommunication and can be united two into one by No. two blenders and main rf signal, so relative to traditional radio frequency optical sender, it intercuts conveniently, and stable performance, the most closely reduce cost, and power consumption is less.
Accompanying drawing explanation
Fig. 1 is attachment structure schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, this utility model includes rf inputs 1, high isolation amplifier 2, attenuator 3, intercut mouth 4, No. two blender 5 and the signal of telecommunication turns optical signal launch circuit group, the input of described rf inputs 1, described high isolation amplifier 2, described attenuator 3 and described No. two blenders 5 is sequentially connected electrically, the described mouth 4 that intercuts electrically connects with the input of described No. two blenders 5, the outfan of described No. two blenders 5 turns optical signal launch circuit group and electrically connects with the described signal of telecommunication, and described rf inputs 1 and the described isolation of mouth 4 that intercuts are not less than 50dB.Described rf inputs 1 and the described isolation of mouth 4 that intercuts are more than 50db so that described in intercut the radiofrequency signal of mouth 4 and disturb main road radiofrequency signal hardly, capacity of resisting disturbance is strong, stable performance, and cost reduces, and power consumption is less.
The described signal of telecommunication turns optical signal launch circuit group and includes main circuit and monitoring control circuit, described main circuit includes the first splitter 6, electrically controlled attenuator 7, low-noise amplifier 8, power amplifier the 9, second splitter 10, predistortion circuit 11, laser instrument 12 and the light signal output end 13 being sequentially connected electrically, and the input of described first splitter 6 electrically connects with the outfan of described No. two blenders 5.
Also electrically connect at described first splitter 6 and be provided with an independent-20dB test port 14.
nullDescribed monitoring control circuit includes radio frequency power detector 15、Microprocessor 16、Condition monitoring unit 17、AGC/MGC switch 18、MGC hand regulator 19、ATC automatic control circuit 20 and APC automatic control circuit 21，Described microprocessor 16 respectively with described radio frequency power detector 15、Described condition monitoring unit 17、Described AGC/MGC switch 18、Described ATC automatic control circuit 20 and APC automatic control circuit 21 electrically connects，Described MGC hand regulator 19 electrically connects with described AGC/MGC switch 18，Described AGC/MGC switch 18 electrically connects with described electrically controlled attenuator 7，The outfan of described ATC automatic control circuit 20 and APC automatic control circuit 21 electrically connects with described laser instrument 12 respectively.
In this utility model, input signal is radio-frequency input signals and intercuts a mouthful radiofrequency signal, after described No. two blenders 5 are mixed into a road signal, decay is adjusted again through electricity, after carrying out low noise amplification and power amplification, and carry out predistortion circuit and automated power Automatic level control, then drive described laser instrument 12 to carry out electricity and light modulation, convert the electrical signal to light modulating signal.
This utility model is applicable to broadcasting and TV broadcast photoelectric communication field.
Claims (4)
1. a band intercuts the optical sender of mouth, it is characterized in that: it includes rf inputs (1), high isolation amplifier (2), attenuator (3), intercut mouth (4), No. two blenders (5) and the signal of telecommunication turn optical signal launch circuit group, described rf inputs (1), described high isolation amplifier (2), the input of described attenuator (3) and described No. two blenders (5) is sequentially connected electrically, the described mouth (4) that intercuts electrically connects with the input of described No. two blenders (5), the outfan of described No. two blenders (5) turns optical signal launch circuit group and electrically connects with the described signal of telecommunication, described rf inputs (1) and the described isolation of mouth (4) that intercuts are not less than 50dB.
Band the most according to claim 1 intercuts the optical sender of mouth, it is characterized in that: the described signal of telecommunication turns optical signal launch circuit group and includes main circuit and monitoring control circuit, described main circuit includes that the first splitter (6), electrically controlled attenuator (7), low-noise amplifier (8), power amplifier (9), the second splitter (10), predistortion circuit (11), laser instrument (12) and the light signal output end (13) being sequentially connected electrically, the input of described first splitter (6) electrically connect with the outfan of described No. two blenders (5).
Band the most according to claim 2 intercuts the optical sender of mouth, it is characterised in that: described first splitter (6) place also electrically connects and is provided with an independent test port (14).
nullBand the most according to claim 2 intercuts the optical sender of mouth，It is characterized in that: described monitoring control circuit includes radio frequency power detector (15)、Microprocessor (16)、Condition monitoring unit (17)、AGC/MGC switch (18)、MGC hand regulator (19)、ATC automatic control circuit (20) and APC automatic control circuit (21)，Described microprocessor (16) respectively with described radio frequency power detector (15)、Described condition monitoring unit (17)、Described AGC/MGC switch (18)、Described ATC automatic control circuit (20) and APC automatic control circuit (21) electrical connection，Described MGC hand regulator (19) electrically connects with described AGC/MGC switch (18)，Described AGC/MGC switch (18) electrically connects with described electrically controlled attenuator (7)，The outfan of described ATC automatic control circuit (20) and APC automatic control circuit (21) electrically connects with described laser instrument (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620135373.4U CN205566315U (en) | 2016-02-23 | 2016-02-23 | Optical sender of mouth is intercutted in area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620135373.4U CN205566315U (en) | 2016-02-23 | 2016-02-23 | Optical sender of mouth is intercutted in area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205566315U true CN205566315U (en) | 2016-09-07 |
Family
ID=56819497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620135373.4U Expired - Fee Related CN205566315U (en) | 2016-02-23 | 2016-02-23 | Optical sender of mouth is intercutted in area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205566315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109842447A (en) * | 2017-11-27 | 2019-06-04 | 北京太平洋莱特科技有限公司 | A kind of straight tunable light emission machine inhibited with SBS |
-
2016
- 2016-02-23 CN CN201620135373.4U patent/CN205566315U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109842447A (en) * | 2017-11-27 | 2019-06-04 | 北京太平洋莱特科技有限公司 | A kind of straight tunable light emission machine inhibited with SBS |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 |