CN202841140U - Double frequency one-drag-eight intelligent optical module repeater - Google Patents
Double frequency one-drag-eight intelligent optical module repeater Download PDFInfo
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- CN202841140U CN202841140U CN 201220520460 CN201220520460U CN202841140U CN 202841140 U CN202841140 U CN 202841140U CN 201220520460 CN201220520460 CN 201220520460 CN 201220520460 U CN201220520460 U CN 201220520460U CN 202841140 U CN202841140 U CN 202841140U
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- optical module
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- double frequency
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Abstract
The utility model discloses a double frequency one-drag-eight intelligent optical module repeater. The optical fiber repeater is composed of a near-end repeater and a far-end repeater. Compared with a prior single frequency near-end optical module, the double frequency one-drag-eight intelligent optical module repeater can support two systems to work at the same time by adding a system, system integration degree is improved, requirements for a repeater covering a 2G system and a 3G system at the same time of operator are met and work requiring two system devices in the prior art is reduced. According to the double frequency one-drag-eight intelligent optical module repeater, a high-performance near-end optical module is adopted to provide automatic compensation of declined light and automatic compensation of optical maser working state and collect and analyze various quantity of states, transparent transmission of frequency shift keying (FSK) is achieved and detection of automatic power is achieved. When a one-dray-eight technique is applied to the module, one single high-performance near-end intelligent optical module can be connected with more radio frequency light far-end terminals, engineering cost of construction implementation is reduced, the coverage area is enlarged at the same time, reliability of the system is enhanced and complexity of installation and debugging of the system is decreased.
Description
Technical field
The utility model is applied in the analog optical fiber repeater, potential application Ethernet, data communication, the fields such as security protection; The application mode of this optical module realizes opto-electronic conversion exactly, and transmitting terminal converts the signal of telecommunication to light signal, sees off by optical fiber transmission, and receiving terminal converts the light signal that receives to light signal again.
Background technology
Optical fiber repeater is made of near-end machine and remote termination, finishes communication by optical fiber between near-end repeater and the far-end repeater.The effect of radio frequency optical module is the opto-electronic conversion of finishing the conversion of the electric light of upstream rf signal and descending RF signal, wants the control signal of transmission repeater simultaneously.In the near-end repeater, the base station down RF signal that is coupled by antenna for base station enters the repeater, sends into module by duplexer and R F control, by LD the RF signal is converted to the optical signals Optical Fiber Transmission to the far-end repeater.And the local terminal repeater is transferred to the far-end repeater to the pilot signal of far-end repeater with the form of fsk signal.Simultaneously, the uplink optical signal that is come by the transmission of far-end repeater is converted to the RF signal by PD, is coupled into the base station.Same, the pilot signal of far-end repeater is reduced to the FSK signal of telecommunication, and be demodulated into digital signal, processed by MCU.
China has carried out the Large scale construction of 3G network in most area, the most basic requirement is exactly to solve network coverage problem, and the ubiquitous network coverage is the prerequisite that high-quality service is provided for the user.So in the urgent need to supporting simultaneously the optical fiber repeater of 2G and 3G system, traditional optical fiber repeater generally all is the system of single system, the conventional near-end optical module needs could support the dual system demand in conjunction with outside duplexer, so not only increase aerial lug, and reliability is not strong, take volumetric spaces large, cost is high.Present near-end optical module generally only supports 1 to drag 1 far-end optical module, if need to the covering of indoor distributed system, need a plurality of near-ends unit, because the characteristics that the analog optical fiber direct discharging station uses, its Installation and Debugging work trouble, the maintenance work expense is huge, causes cost to rise.So for the reliability that increases system and the complexity that reduces system's Installation and Debugging, need can 1 to drag many near-end optical modules.
The utility model content
The utility model addresses the above problem provides a kind of double frequency 1 to drag 8 intelligent optical modules, 1 intelligent near-end optical module can be supported 8 intelligent optical remote end modules simultaneously, the indoor covering problem of good solution, support simultaneously the Transmission Design circuit of dual system, the problem of the integrated difficulty of resolution system, simplify the design of repeater, and make things convenient for engineering construction, the line problem.
For addressing the above problem, the utility model is realized by following scheme: a kind of double frequency 1 drags 8 intelligent optical module repeaters, described optical fiber repeater is made of near-end repeater and far-end repeater, described near-end repeater mainly comprises digital DCS IF board, the WCDMA IF board, the LD driver, the RF signal receiving device, fsk signal transmitting device FSKRX, fsk signal transmitting device FSKTX, CWDM coarse wavelength division multiplexer device, optical power distributor OP8DIV, opto-electronic conversion PD module, the MCU controller, described near-end repeater is electrically connected to the LD driver by the amplification of the downstream signal process gain amplifier tube of digital DCS IF board 1 radio frequency mouth output, the LD actuator electrical is connected to optical power distributor OP8DIV, the other end is electrically connected with SK signal transmitting apparatus FSKRX, described optical power distributor OP8DIV is divided into 8 road light signals, sends into respectively optical fiber by CWDM coarse wavelength division multiplexer device and passes to far-end optical module terminal.
Described RF signal receiving device one end is electrically connected fsk signal transmitting device FSKRX, and the other end is electrically connected duplexer.
Described digital DCS IF board, WCDMA IF board are electrically connected with 2 stage gain amplifier tubes.
Described MCU controller is electrically connected with RS485.
The beneficial effects of the utility model: single-frequency near-end optical module has more in the past increased a system, can support simultaneously dual system work, improved level of integrated system, solved the difficult problem that operator needs 2G and 3G dual system to cover simultaneously, the work that needs 2 cover system equipment just can finish before reducing.Because the handling characteristics of the indoor covering of analog optical fiber direct discharging station, need the good solution covering problem of a plurality of micropower optical module terminals ability, Previous System needs a plurality of near-end optical modules, causes its Installation and Debugging work trouble, the maintenance work expense is huge, causes cost to rise.The high-performance near-end optical module of the utility model design can provide automatic light-attenuation compensation function, laser works state auto-compensation, and various quantity of state Real-time Collections, analysis, the FSK transparent transmission, automated power detects.Say in some sense some functions that can substitute monitoring repeater, can greatly simplify the design of repeater, reduce the design difficulty of repeater RF part.Particularly when module has 1 to drag 8 application, a high performance near-end intelligent optical module can connect more radio frequency light distance terminal, can improve the overlay area when making things convenient for the enforcement reduce project cost of engineering, increase the reliability of system and reduce the complexity of system's Installation and Debugging.
Description of drawings
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is that the utility model double frequency 1 drags 8 intelligent optical module repeater structure configuration diagram;
Fig. 2 is the internal circuit configuration figure that the utility model double frequency 1 drags 8 intelligent optical module repeaters.
Embodiment
Such as Fig. 1, shown in Figure 2, a kind of double frequency 1 drags 8 intelligent optical module repeaters, described optical fiber repeater is made of near-end repeater and far-end repeater, described near-end repeater mainly comprises digital DCS IF board 1, WCDMA IF board 2, LD driver 3, RF signal receiving device 4, fsk signal transmitting device FSKRX 5, fsk signal transmitting device FSKTX 6, CWDM coarse wavelength division multiplexer device 7, optical power distributor OP8DIV 8, opto-electronic conversion PD module 9, MCU controller 10, described near-end repeater is electrically connected to LD driver 3 by the amplification of the downstream signal process gain amplifier tube of digital DCS IF board 1 radio frequency mouth output, LD driver 3 is electrically connected to optical power distributor OP8DIV 8, the other end is electrically connected with SK signal transmitting apparatus FSKRX 5, described optical power distributor OP8DIV 8 is divided into 8 road light signals, sends into respectively optical fiber by CWDM coarse wavelength division multiplexer device 7 and passes to far-end optical module terminal.Described RF signal receiving device 4 one ends are electrically connected fsk signal transmitting device FSKRX5, and the other end is electrically connected duplexer.Described digital DCS IF board 1, WCDMA IF board 2 are electrically connected with 2 stage gain amplifier tubes.Described MCU controller 10 is electrically connected with RS485.
Proximal fiber machine 1 drags the basic framework of 8 optical modules, near-end is input to LD driver 3 by the amplification of the downstream signal process gain amplifier tube of digital DCS IF board 1 radio frequency mouth output, the control signal that the while repeater will be launched also is input to LD driver 3, the drive circuit of LD driver 3 will be accomplished low noise, high stability.The luminous power of LD driver 3 will be stablized, and is insensitive to temperature and humidity, requires in addition it to keep well linear; Simultaneously, because fault, luminous power sharply reduces even need to have auto-alarm function during without luminous power when LD driver 3; Thus, the descending RF signal in this road, one road fsk signal has become specific wavelength light signal (for example 1550nm), this light signal was through 1 minute 8 optical power distributor OP8DIV 8, be divided into 8 the tunnel, this 8 tunnel 1550 light signal is sent into respectively optical fiber through CWDM coarse wavelength division multiplexer device 7 and is passed to far-end optical module terminal; The effect of CWDM coarse wavelength division multiplexer device 7 is that the laser of certain wavelength (for example 1550nm) is coupled into optical fiber, and the laser (for example 1310nm) of another kind of wavelength is separated from optical fiber.Realize in a monomode fiber, finishing the transmission of uplink and downlink signals by this form, saved the capacity of an optical fiber.For CWDM coarse wavelength division multiplexer device 7, the isolation between its two kinds of wavelength light is very important parameter.The light signal (for example 1310nm) that is transmitted through optical fiber by far-end optical module terminal is input to opto-electronic conversion PD module 9 through CWDM coarse wavelength division multiplexer device 7, be converted to the radio frequency upward signal by opto-electronic conversion PD module 9, the RF upward signal goes out digital DCS IF board 1 and WCDMA IF board 2 two-frequency signals through too high isolation diplexer separates, and two-frequency signal is controlled the radio frequency delivery outlet that outputs to the digital intermediate frequency plate through 2 stage gain amplifier tubes and 1 progression controlling attenuation respectively.And also out passed to the optical module of near-end repeater by 9 demodulation of opto-electronic conversion PD module by the control signal that far-end optical module terminal is sent here.Work as equally the luminous power that receives very little, in the situation that perhaps opto-electronic conversion PD module 9 is damaged, also unglazed warning will be arranged.The digital communication of optical module and repeater is finished by RS232 interface or RS485 interface, and the conversion of corresponding signal level is finished by the chip of special use.The Main Function of MCU is exactly the sending and receiving of control fsk data, finishes the unloading of wanting data, the functions such as framing.Simultaneously, MCU also will finish the sampling of each monitoring parameter and the generation of control level.
Single-frequency near-end optical module has more in the past increased a system, can support simultaneously dual system work, has improved level of integrated system, solves the difficult problem that operator needs 2G and 3G dual system to cover simultaneously, the work that needs 2 cover system equipment just can finish before reducing.Because the handling characteristics of the indoor covering of analog optical fiber direct discharging station, need the good solution covering problem of a plurality of micropower optical module terminals ability, Previous System needs a plurality of near-end optical modules, causes its Installation and Debugging work trouble, the maintenance work expense is huge, causes cost to rise.The high-performance near-end optical module of the utility model design can provide automatic light-attenuation compensation function, laser works state auto-compensation, and various quantity of state Real-time Collections, analysis, the FSK transparent transmission, automated power detects.Say in some sense some functions that can substitute monitoring repeater, can greatly simplify the design of repeater, reduce the design difficulty of repeater RF part.Particularly when module has 1 to drag 8 application, a high performance near-end intelligent optical module can connect more radio frequency light distance terminal, can improve the overlay area when making things convenient for the enforcement reduce project cost of engineering, increase the reliability of system and reduce the complexity of system's Installation and Debugging.
The above only is preferred implementation of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present utility model.
Claims (4)
1. a double frequency 1 drags 8 intelligent optical module repeaters, described optical fiber repeater is made of near-end repeater and far-end repeater, it is characterized in that: described near-end repeater mainly comprises digital DCS IF board (1), WCDMA IF board (2), LD driver (3), RF signal receiving device (4), fsk signal transmitting device FSKRX (5), fsk signal transmitting device FSKTX (6), CWDM coarse wavelength division multiplexer device (7), optical power distributor OP8DIV (8), opto-electronic conversion PD module (9), MCU controller (10), described near-end repeater is electrically connected to LD driver (3) by the amplification of the downstream signal process gain amplifier tube of digital DCS IF board (1) radio frequency mouth output, LD driver (3) is electrically connected to optical power distributor OP8DIV (8), the other end is electrically connected with SK signal transmitting apparatus FSKRX (5), described optical power distributor OP8DIV (8) is divided into 8 road light signals, sends into respectively optical fiber by CWDM coarse wavelength division multiplexer device (7) and passes to far-end optical module terminal.
2. drag 8 intelligent optical module repeaters according to a kind of double frequency 1 claimed in claim 1, it is characterized in that: described RF signal receiving device (4) one ends are electrically connected fsk signal transmitting device FSKRX (5), and the other end is electrically connected duplexer.
3. drag 8 intelligent optical module repeaters according to a kind of double frequency 1 claimed in claim 1, it is characterized in that: described digital DCS IF board (1), WCDMA IF board (2) are electrically connected with 2 stage gain amplifier tubes.
4. drag 8 intelligent optical module repeaters according to a kind of double frequency 1 claimed in claim 1, it is characterized in that: described MCU controller (10) is electrically connected with RS485.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220520460 CN202841140U (en) | 2012-10-11 | 2012-10-11 | Double frequency one-drag-eight intelligent optical module repeater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220520460 CN202841140U (en) | 2012-10-11 | 2012-10-11 | Double frequency one-drag-eight intelligent optical module repeater |
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| CN202841140U true CN202841140U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220520460 Expired - Fee Related CN202841140U (en) | 2012-10-11 | 2012-10-11 | Double frequency one-drag-eight intelligent optical module repeater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049113A (en) * | 2015-06-17 | 2015-11-11 | 武汉光迅科技股份有限公司 | Active optical module multi-channel automatic test system and method |
| CN109831254A (en) * | 2017-11-23 | 2019-05-31 | 通号通信信息集团上海有限公司 | A kind of optic-fiber repeater system using wavelength-division multiplex technique |
-
2012
- 2012-10-11 CN CN 201220520460 patent/CN202841140U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049113A (en) * | 2015-06-17 | 2015-11-11 | 武汉光迅科技股份有限公司 | Active optical module multi-channel automatic test system and method |
| CN105049113B (en) * | 2015-06-17 | 2017-09-15 | 武汉光迅科技股份有限公司 | A kind of active light module multichannel automatization test system and method |
| CN109831254A (en) * | 2017-11-23 | 2019-05-31 | 通号通信信息集团上海有限公司 | A kind of optic-fiber repeater system using wavelength-division multiplex technique |
| CN109831254B (en) * | 2017-11-23 | 2023-10-10 | 通号通信信息集团上海有限公司 | Optical fiber repeater system using wavelength division multiplexing technology |
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| 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: 20130327 Termination date: 20171011 |