CN208721839U - A kind of active electro-optic connector suitable for TDM-PON fiber buss - Google Patents
A kind of active electro-optic connector suitable for TDM-PON fiber buss Download PDFInfo
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- CN208721839U CN208721839U CN201821402727.2U CN201821402727U CN208721839U CN 208721839 U CN208721839 U CN 208721839U CN 201821402727 U CN201821402727 U CN 201821402727U CN 208721839 U CN208721839 U CN 208721839U
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Abstract
The utility model discloses a kind of active electro-optic connectors suitable for TDM-PON fiber buss, including shell, optical fiber locker, PCB substrate and contact jaw electric conductor；Shell is used to encapsulate and fix PCB substrate, optical fiber locker and contact jaw electric conductor, and shell is exposed in contact jaw electric conductor one end, realizes the connection with external equipment；Optical fiber locker one end is for optical fiber to be immobilized in the shell, and the other end is connect with the one end BOSA, and the BOSA other end is connected with physical media control unit, and physical media control unit is located at the intracorporal one end of shell with contact jaw electric conductor and is connected；Power supply conditioning module one end is connect with physical media control unit, and the other end is located at the intracorporal one end of shell with contact jaw electric conductor and is connected, for receiving external power supply.The utility model avoids maintenance of the industry spot to optical connector end face, and solves layout problem of the optical module inside single machine, has the characteristics that low in energy consumption, small in size, interface rate is high, high reliablity.
Description
Technical field
The utility model relates to a kind of active electro-optic connectors suitable for TDM-PON fiber buss, belong to light-to-current inversion
Apparatus field.
Background technique
Optical cable transmission has anti-as a kind of novel high speed transmission of signals mode compared with common electrical communications system
The advantages such as electromagnetic interference, cable light weight, transmission attenuation be small.However, optical cable transmission be highly prone to connecting end surface stain etc. factors
Influence, especially for the external field environment for not having professional knowledge or professional detection device, the connection and maintenance of optical cable seem more
Add difficulty.Therefore, need to design a kind of connection for being able to solve the extreme environments optical cable such as industrial scene, field work end face with
The connector of protection question.
The optical transmission pathway of TDM-PON fiber buss includes the passive devices such as optical fiber and optical splitter, and access both ends connect light
The fine network terminal (OLT) and optical network unit (ONU).In order to realize unperturbed transmitted in both directions over the same fiber, OLT is used
1490nm wavelength realizes network data downlink transfer in a broadcast manner, and ONU is shared in the way of TDMA using 1310nm wavelength
Channel realizes the uplink of network data.Therefore, under TDM-PON fiber buss system, the opto-electric connector of the side OLT
It needs to continuously transmit and work with the mode of burst reception；The opto-electric connector of the side ONUs needs to send to happen suddenly and continuously connect
The mode of receipts works.Meanwhile in order to improve the communication reliability of fiber optic network, the mode of redundancy backup is mostly used to improve network
Fault-tolerant ability.
Currently, commercialization PON fiber buss mostly uses optical module to carry out photoelectric conversion, optical fiber joint end face is vulnerable to flaw
Dirt, and biggish volume can compress the arrangement space of pcb board, become the bottleneck of limit product performance boost.Document " GJYQ-I type
Optical cable active connector " a kind of optical cable active connector scheme is provided, the program converts electrical signals to light using luminous tube
Signal, optical detector of the optical signal through optical cable transmission to receiving end, then electric signal is exported after detector carries out photoelectric conversion.Side
Luminous tube and detector used in case are discrete device, and integrated level, reliability be not high, so as to cause connector construction size
Greatly, and Transistor-Transistor Logic level data-interface is used, rate is low, poor anti jamming capability.Document " active connector and have the active company
Connect the communication equipment of device " a kind of active connector of integrated multipath differential signal is disclosed, which realizes more in inside
The conversion of road differential signal, signal density with higher and reliability, but the program is not suitable for fiber buss network
Connection.
Therefore, in order to solve the extreme environments TDM-PON fiber buss connectivity problem such as industrial scene, field work, together
When take into account network fault tolerance design and high-speed transfer requirement, it is necessary to invent a kind of with low in energy consumption, small in size, interface rate is high
High reliability fibre-optical active connector.
Utility model content
The technology of the utility model solves the problems, such as: overcoming the deficiencies of the prior art and provide a kind of suitable for TDM-PON light
The active electro-optic connector of fine bus has the characteristics that low in energy consumption, small in size, interface rate is high, high reliablity.
The technical solution of the utility model is: a kind of active electro-optic connector suitable for TDM-PON fiber buss,
Including shell, optical fiber locker, PCB substrate and contact jaw electric conductor；BOSA, physical media control are provided in the PCB substrate
Unit and power supply conditioning module processed；
The shell is used to encapsulate and fix PCB substrate, optical fiber locker and contact jaw electric conductor, and contact jaw electric conductor
Shell is exposed in one end, realizes the connection with external equipment；
The optical fiber locker is used to optical fiber being fixed on the one end BOSA, the BOSA other end and physical media control unit phase
Even, physical media control unit is located at the intracorporal one end of shell with contact jaw electric conductor and is connected；Power supply conditioning module one end and physics
Media control units connection, for powering for physical media control unit, it is intracorporal that the other end with contact jaw electric conductor is located at shell
One end is connected, for receiving external power supply.
The optical fiber locker, BOSA and physical media control unit it is equal there are two, realize Redundancy Design.
The PCB substrate is OLT mode or ONU mode.
BOSA has been internally integrated light source and photoelectric converter, and described light source one end is connect by optical fiber locker with optical fiber,
The light source other end is connect by photoelectric converter with physical media control unit.
When PCB substrate is OLT mode, light source launch wavelength is 1550nm, a length of 1310nm of photoelectric converter received wave；
When PCB substrate is ONU mode, light source launch wavelength is 1310nm, a length of 1550nm of photoelectric converter received wave.
When PCB substrate is OLT mode, physical media control unit selects MAX3738；When PCB substrate is ONU mode, object
It manages media control units and selects MAX3710.
The optical fiber locker is spring-buckle-type optical fiber locker.
The power supply conditioning module is made of LDO module and rc filter circuit, rc filter circuit one end and contact jaw
Electric conductor connection, the other end are connect with LDO module, and the other end of LDO module is connect with physical media control unit.
The LDO module selects SP6201 chip to realize.
The shell dimension is not more than 50mm × 60mm × 15mm.
Compared with prior art, the utility model has the following beneficial effects:
(1) the utility model is under TDM-PON bus system, devises integrated BOSA, physical media control unit has
Source opto-electric connector, realizes the light-to-current inversion inside connector, and connector externally uses multichannel differential signaling paths real
Existing data interaction, avoids maintenance of the industry spot to optical connector end face, realizes the isolation of optical cable end face, and effectively subtract
Small volume, improves flexibility and reliability.
(2) it is designed using dual redundant inside the utility model, two-way photoelectric conversion access warm back-up each other can satisfy double
Slack bus design demand.
(3) the utility model supply input and data transmission use same contact jaw electric conductor, it is not necessary that power supply is separately configured
Module has the advantages that low in energy consumption, small in size, interface rate is high, convenient to use.
Detailed description of the invention
Fig. 1 is the utility model frame diagram；
Fig. 2 is active electro-optic connector and single machine connection relationship diagram；
Fig. 3 is application of the active electro-optic connector in TDM-PON bus network.
Specific embodiment
In order to adapt to TDM-PON fiber buss communication system, the optical cable connection solved under industrial scene and field environment is asked
Topic, improves the reliability of optical cable connecting end surface, and the present invention devises a kind of having suitable for TDM-PON fiber buss communication system
Source opto-electric connector.The present invention is capable of providing dual redundant fiber channel and connector working condition detection function.The present invention is by two
Road light emitting receiving unit (BOSA), high speed electric contact piece (contact jaw electric conductor) and two-way optical fiber locker are integrated in a company
Connect device enclosure interior.Since optical cable connecting end surface is closed in inside active connector in process of production, use process is not necessarily to
It is patched again, so completing optical cable end face connection operation in engineering site without technical staff, there is easy to use, integrated level
High feature.
As shown in Figure 1, active electro-optic connector of the invention, including shell 1, optical fiber locker 2, PCB substrate and contact
Hold electric conductor 6.Photoelectric conversion circuit, including BOSA 3, physical media control unit 4 and power supply conditioning are provided in PCB substrate 7
Module 5.
Shell 1 is used to encapsulate and fix PCB substrate 7, optical fiber locker 2 and contact jaw electric conductor 6, and contact jaw electric conductor
Shell 1 is exposed in 6 one end, realizes the connection with external equipment.Shell dimension is not more than 50mm × 60mm × 15mm.
For optical fiber to be fixed in shell 1, the other end is connect 2 one end of optical fiber locker with the one end BOSA3, specific optional
With spring-buckle-type optical fiber locking device.3 other end of BOSA is connected with physical media control unit, physical media control unit
It is located at one end in shell 1 with contact jaw electric conductor to be connected；5 one end of power supply conditioning module is connect with physical media control unit 4,
For powering for physical media control unit 4, the other end is located at one end in shell 1 with contact jaw electric conductor and is connected, for connecing
Receive external power supply.Light source (LD) and photoelectric converter (PD) are mainly integrated with inside BOSA.
Physical media control unit includes amplifier and AD conversion unit；Amplifier in is connect with BOSA, amplification
Device output end is connect with AD conversion unit input terminal, and AD conversion unit output end and contact jaw electric conductor are located in shell 1
One end be connected.
Specifically, contact pin type contact jaw electric conductor is arranged in active electro-optic connector one end, and single machine one end setting jack type connects
Contravention electric conductor, the two docking control signal and supply input to realize that data high-speed exchanges.In order to realize that dual redundant optical path is received
Function is sent out, needs to be arranged two optical fiber lockers, each optical fiber locker is connected with an optical fiber.The realization of contact jaw electric conductor has
Source connector is exchanged with the data high-speed of external equipment, controls signal and supply input.In order to guarantee contact jaw electric conductor multichannel
Differential signal transmission quality selects HSJ-28TJL electrical connector plug, to meet the requirement of traffic rate and communication distance.It is close
PCB substrate, optical fiber locker and contact jaw electric conductor are fixed in an enclosure space by capsule body.Shell, which can be used, to be struck out
The mode of type is processed, simple production process and cost is relatively low.
The communication pattern of physical medium is shared for TDM-PON fiber buss, it is desirable to provide adaptation OLT mode and ONU mould
The active electro-optic connector of formula.The difference of two kinds of different mode active electro-optic connectors is mainly reflected in PCB substrate, lower mask
The embodiment that body discusses the active connector PCB substrate of OLT mode and ONU mode.
1) OLT mode PCB substrate
It is provided with two-way photoelectric conversion circuit in OLT mode PCB substrate, includes BOSA and object per photoelectric conversion circuit all the way
Manage medium control unit.Specifically, BOSA selects GDZ-RD-GF-43, and LD launch wavelength is that 1550nm, PD received wave are a length of
The photoactor of 1310nm；Physical media control unit selects MAX3738, which uses 3.3V power supply.
Power supply conditioning module is made of LDO module and rc filter circuit, wherein LDO module selects SP6201, input electricity
Press 2.5-7V, output voltage 3.3V, the precision of voltage regulation 2%.
2) ONU mode PCB substrate
It is provided with two-way photoelectric conversion circuit in ONU mode PCB substrate, includes BOSA and object per photoelectric conversion circuit all the way
Manage media control units.Specifically, BOSA selects GDZ-RD-GF-44, and LD launch wavelength is that 1310nm, PD received wave are a length of
The photoactor of 1550nm；Physical media control unit selects MAX3710, which uses 3.3V power supply.
Power supply conditioning module is made of LDO module and rc filter circuit, wherein rc filter circuit receives external supply
Electricity, and filtering out for clutter etc. is carried out to received external power supply.LDO module selects SP6201, input voltage 2.5-7V, output electricity
Press 3.3V, the precision of voltage regulation 2%.
As shown in figure 3, OLT mode active electro-optic connector is arranged at the end fiber buss NC TDM-PON, ONU is arranged in the end NT
Mode active electro-optic connector.In TDM-PON fiber optic network, need to be arranged an OLT mode active electro-optic connector, ONU
Mode active electro-optic connector quantity is determined by the quantity of NT node.One end of all active electro-optic connectors connects single machine (NC
Or NT), it is contact jaw electric conductor at connector parting surface, optical fiber joint end face closure is in active electro-optic that the other end, which connects optical fiber,
Inside connector, so as to avoid the upkeep operation to optical fiber joint end face, the more convenient to use of fiber optic network is allowed.
The present invention is described below and is designed with source opto-electric connector working principle.
The present invention is designed with source opto-electric connector and is connected by contact jaw electric conductor with the electric conductor on single machine.Pass through
The multichannel differential signal transmission channel of contact jaw electric conductor offer, control signal path, energization input, PCB substrate can be real
It is now exchanged with the high-speed data of single machine, control instruction obtains and the functions such as supply input.After PCB substrate obtains data, BOSA exists
Under the control of physical media control unit, optical signal is generated using the LD being internally integrated and is coupled in fiber optic network, realizes electricity
Conversion of the signal to optical signal.Meanwhile the optical signal that PCB substrate is transmitted by the PD reception optical fiber that BOSA is internally integrated, and turn
It is changed to voltage and is output to physical media control unit.Physical media control unit amplifies the voltage and analog/digital turns
Single machine end is transferred to by the differential signal channel of contact jaw electric conductor after changing, realizes conversion of the optical signal to electric signal.Physics
Media control units can also be realized by the control access of contact jaw electric conductor to active light on the basis of completing BOSA control
Electric connector parameter configuration and status monitoring.
The active electric connector that the utility model is proposed passes through the side that active photoactor is integrated in PCB substrate
Formula realizes the light-to-current inversion inside connector, and connector externally uses multichannel differential signaling paths to realize data interaction,
Maintenance of the industry spot to optical connector end face is avoided, and solves layout problem of the optical module inside single machine, is promoted
The reliability of TDM-PON communication network, flexibility, and cost is relatively low.
The utility model unspecified part belongs to common sense well known to those skilled in the art.
Claims (10)
1. a kind of active electro-optic connector suitable for TDM-PON fiber buss, it is characterised in that: including shell (1), optical fiber lock
Tight device (2), PCB substrate (7) and contact jaw electric conductor (6)；BOSA (3), physical media control are provided on the PCB substrate (7)
Unit (4) processed and power supply conditioning module (5)；
The shell (1) is used to encapsulate and fix PCB substrate (7), optical fiber locker (2) and contact jaw electric conductor (6), and contacts
It holds electric conductor (6) one end to expose shell (1), realizes the connection with external equipment；
The optical fiber locker (2) is used to for optical fiber being fixed on BOSA (3) one end, and BOSA (3) other end and physical media control
Unit is connected, and physical media control unit is located at one end in shell (1) with contact jaw electric conductor and is connected；Power supply conditioning module
(5) one end is connect with physical media control unit (4), for powering for physical media control unit (4), the other end and contact jaw
Electric conductor is located at one end in shell (1) and is connected, for receiving external power supply.
2. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 1, feature exist
In: there are two the optical fiber locker (2), BOSA (3) and physical media control unit (4) are equal, realize Redundancy Design.
3. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 1, feature exist
In: the PCB substrate (7) is OLT mode or ONU mode.
4. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 3, feature exist
In: BOSA has been internally integrated light source and photoelectric converter, and described light source one end is connect by optical fiber locker (2) with optical fiber, light
The source other end is connect by photoelectric converter with physical media control unit.
5. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 4, feature exist
In: when PCB substrate (7) is OLT mode, light source launch wavelength is 1550nm, a length of 1310nm of photoelectric converter received wave；PCB
When substrate (7) is ONU mode, light source launch wavelength is 1310nm, a length of 1550nm of photoelectric converter received wave.
6. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 3, feature exist
In: when PCB substrate (7) is OLT mode, physical media control unit selects MAX3738；When PCB substrate (7) is ONU mode, object
It manages media control units and selects MAX3710.
7. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 1, feature exist
In: the optical fiber locker (2) is spring-buckle-type optical fiber locker.
8. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 1, feature exist
In: the power supply conditioning module is made of LDO module and rc filter circuit, rc filter circuit one end and contact jaw electric conductor
(6) it connects, the other end is connect with LDO module, and the other end of LDO module is connect with physical media control unit (4).
9. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 8, feature exist
In: the LDO module selects SP6201 chip to realize.
10. a kind of active electro-optic connector suitable for TDM-PON fiber buss according to claim 1, feature exist
In: the shell dimension is not more than 50mm × 60mm × 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402727.2U CN208721839U (en) | 2018-08-29 | 2018-08-29 | A kind of active electro-optic connector suitable for TDM-PON fiber buss |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402727.2U CN208721839U (en) | 2018-08-29 | 2018-08-29 | A kind of active electro-optic connector suitable for TDM-PON fiber buss |
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| Publication Number | Publication Date |
|---|---|
| CN208721839U true CN208721839U (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821402727.2U Active CN208721839U (en) | 2018-08-29 | 2018-08-29 | A kind of active electro-optic connector suitable for TDM-PON fiber buss |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108575A1 (en) * | 2021-12-16 | 2023-06-22 | 成都瑞通视讯科技股份有限公司 | Optical communication module, device, and system |
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2018
- 2018-08-29 CN CN201821402727.2U patent/CN208721839U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108575A1 (en) * | 2021-12-16 | 2023-06-22 | 成都瑞通视讯科技股份有限公司 | Optical communication module, device, and system |
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