CN105099559B - A kind of ASON unit - Google Patents
A kind of ASON unit Download PDFInfo
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- CN105099559B CN105099559B CN201510346115.0A CN201510346115A CN105099559B CN 105099559 B CN105099559 B CN 105099559B CN 201510346115 A CN201510346115 A CN 201510346115A CN 105099559 B CN105099559 B CN 105099559B
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- unit
- control unit
- ason
- intelligent control
- signal
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2878—Access multiplexer, e.g. DSLAM
- H04L12/2879—Access multiplexer, e.g. DSLAM characterised by the network type on the uplink side, i.e. towards the service provider network
- H04L12/2885—Arrangements interfacing with optical systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a kind of ASON unit, it is connected with OLT, including optical network unit, intelligent control unit, ethernet communication unit, I/O unit and the power circuit for said units power supply, the optical network unit controls the data of the I/O unit to communicate by the intelligent control unit.The present invention has advantages below compared with prior art：A kind of ASON unit of the present invention, the integration of a variety of headend equipments is accessed, and intellectualized technology, ethernet technology are combined with PON technologies, intelligent gateway is embedded into optical network unit, realize a variety of headend equipment integration accesses.A kind of ASON cellular construction of the present invention is simple, and cost is low, low-power consumption, high-environmental, maintains easily.And transmission efficiency is high, strong interference immunity.
Description
Technical field
The present invention relates to a kind of optical network apparatus, more particularly to a kind of ASON unit.
Background technology
Each functions of modules of traditional intelligence system is single, ineffective systems, and each front end mould is realized by protocol converter
The digitlization of block, IPization, front-end information do not process, then pass through the Ethernet transmission equipment such as fiber optical transceiver, interchanger, ONU
Pass to backstage.The existing typical intellectualizing system of tradition includes front end various kinds of sensors, analog-to-digital conversion module, Ethernet association turn,
Interchanger, fiber optical transceiver, core switch, router and server.
Existing traditional intelligence system realizes the access of the ports such as DI/DO, serial ports, it is necessary to by all kinds of protocol converters
Ethernet interface is converted into, then backstage is passed to by the Ethernet transmission equipment such as fiber optical transceiver, interchanger, ONU.
Existing system equipment networking has that complicated, route arrangement is difficult, easy interference, equipment cost are high, construction
Cost is high, power consumption is big, not easy care, low environmental protection, the shortcoming such as electromagnetic pollution is big, efficiency of transmission is low.After failure, fiber crops are safeguarded
It is tired, such as：When not collecting data in digital quantity equipment, it is that intermediate equipment there is a problem to be confused about, or headend equipment
Problem.Need progressively to investigate and can find problem points, so waste time and energy, also using above bringing inconvenience.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of ASON unit, by intelligent skill
Art, ethernet technology are combined with PON technologies, and intelligent gateway is embedded in into optical network unit, realize that a variety of headend equipment integrations connect
Enter.
The present invention is achieved by the following technical solutions：A kind of ASON unit, is connected with OLT, including light
NE, intelligent control unit, ethernet communication unit, I/O unit and the power circuit for said units power supply,
The optical network unit controls the data of the I/O unit to communicate by the intelligent control unit.
As the further optimization of such scheme, the optical network unit includes optical transceiver, light output control unit and letter
Number exchange input control unit, optical signal transceiver is carried out between the optical transceiver and the OLT, the light output control unit passes through
Luminous detection determines to close the light of the optical transceiver, and the signal input control unit is by by the intelligent control unit
The signal of collection is converted into optical signal.
As the further optimization of such scheme, the intelligent control unit includes LM3S6911 microprocessors and its periphery
Circuit.
As the further optimization of such scheme, it is defeated that the I/O unit includes RS485 interface circuits, digital quantity
Enter DI interface circuits and digital output DO interface circuits, the intelligent control unit and the two-way number of RS485 interface circuits
According to communication, the signal input part of the intelligent control unit electrically connects with the signal output part of digital quantity input DI interface circuits,
The signal output part of the intelligent control unit electrically connects with the signal input part of digital output DO interface circuits.
As the further optimization of such scheme, the optical network unit is SD5103RB1 optical processors, described
SD5103RB1 optical processors convert optical signals into electric signal, with the intelligent control unit two-way communication link.
As the further optimization of such scheme, the intelligent control unit and the ethernet communication unit two-way
Letter, and the intelligent control unit built-in ethernet PHY chip electrically connects with RJ45 interface circuits.
As the further optimization of such scheme, the RS485 interface circuits by communication interface chip 65lbc184 with
The LM3S6911 microprocessors serial ports link.
As the further optimization of such scheme, the digital quantity input DI interface circuits pass through OPTO-ISOLATORS cores
Piece electrically connects with the I/O pin of the LM3S6911 microprocessors.
As the further optimization of such scheme, the digital output DO interface circuits by RELAY chips with it is described
The I/O pin electrical connection of LM3S6911 microprocessors.
As the further optimization of such scheme, the digital output DO interface circuits include resistance R38, NPN type three
Pole pipe Q1, diode D1, the first RELAY chips and piezo-resistance RV1.
The present invention compared with prior art, a kind of beneficial effect of the optical network apparatus of embedded intelligent gateway provided by the invention
It is embodied in：
1st, traditional device by router, core switch, fiber optical transceiver, access switch, Ethernet protocol and
D/A converter module integrates networking, and a kind of ASON unit of the present invention, by intellectualized technology, ethernet technology with
PON technologies are combined, and intelligent gateway is embedded in into optical network unit, need to only be communicated with OLT, replace conventional apparatus, simple in construction, equipment
Cost is low, small power consumption, maintains easily.
2nd, a variety of input/output interface units built in a kind of ASON unit of the invention, lead to front end sensors
Letter connection, transmits efficient and strong antijamming capability.
3rd, a kind of ASON unit of the invention, intellectualized technology, ethernet technology are combined with PON technologies, will
Intelligent gateway is embedded in optical network unit, by intelligent control unit and ethernet communication unit two-way communication, and intelligent control single
First built-in ethernet PHY chip electrically connects with RJ45 interface circuits.
4th, traditional digital quantity DI input interfaces/DO output interfaces, connected by various protocol converters and ethernet communication
Connect, a kind of ASON unit of the invention, intelligent gateway is embedded in optical network unit, pass through intelligent control unit and numeral
Measure DI input interfaces/DO output interfaces direct communication connection.
Brief description of the drawings
Fig. 1 is a kind of circuit structure block diagram of ASON unit of the present invention.
Fig. 2 is a kind of circuit theory diagrams of the intelligent control unit of ASON unit of the present invention.
Fig. 3 is a kind of circuit theory of the input DI interface circuits of digital quantity all the way of ASON unit of the present invention
Figure.
Fig. 4 is a kind of circuit theory of the DO interface circuits of digital output all the way of ASON unit of the present invention
Figure.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
A kind of ASON unit, is connected with OLT.Referring to Fig. 1, for a kind of intelligent Optical Networks of the invention of the present invention
The circuit structure block diagram of network unit.A kind of ASON unit includes optical network unit, intelligent control unit, ethernet communication
Unit, I/O unit and the power circuit for said units power supply, wherein, optical network unit passes through intelligent control unit
The data of control input/output unit and ethernet communication unit communicate.
Optical network unit includes fiber optical transceiver, light output control unit and signal exchange input control unit, fiber optical transceiver
Optical signal transceiver is carried out between OLT, light output control unit determines to close the light of fiber optical transceiver by luminous detection, institute
State signal input control unit and optical signal is converted into by the signal for gathering the intelligent control unit.The preferential implementation of the present invention
In example, optical network unit is SD5103RB1 optical processors, and SD5103RB1 optical processors convert optical signals into electric signal,
With intelligent control unit two-way communication link.
Wherein, I/O unit includes RS485 interface circuits, digital quantity input DI interface circuits and digital output
DO interface circuits, intelligent control unit and RS485 interface circuit bidirectional data communications, the signal input part of intelligent control unit with
The signal output part electrical connection of digital quantity input DI interface circuits, signal output part and the digital output DO of intelligent control unit
The signal input part electrical connection of interface circuit.In the preferred embodiments of the present invention, intelligent control unit includes the micro- places of LM3S6911
Manage device and its peripheral circuit.RS485 interface circuits pass through communication interface chip 65lbc184 and LM3S6911 microprocessor serial ports
Link.Digital quantity input DI interface circuits are electrically connected by the I/O pin of OPTO-ISOLATORS chips and LM3S6911 microprocessors
Connect.Digital output DO interface circuits are electrically connected by RELAY chips with the I/O pin of LM3S6911 microprocessors.
Wherein, intelligent control unit and ethernet communication unit two-way communication, and intelligent control unit built-in ethernet PHY
Chip electrically connects with RJ45 interface circuits.In the preferred embodiments of the present invention, LM3S6911 microprocessor built-in ethernet PHY cores
Piece electrically connects with RJ45 interface circuits, referring to Fig. 2, a kind of circuit of the intelligent control unit of ASON unit of the invention
Schematic diagram.Wherein, RJ45 interface circuits use HR911105A chips, the 43pin pins and 46pin of LM3S6911 microprocessors
Pin is signal output part, and the 40pin pins and 47pin pins of LM3S6911 microprocessors are signal input part.LM3S6911
The 43pin pins and 46pin pins of microprocessor, by resistance R12 and resistance 13, electric capacity C35 and electric capacity C36 with
The signal input part electrical connection of HR911105A chips.The 40pin pins and 37pin pins of LM3S6911 microprocessors, pass through electricity
Resistance R14 and R15, electric capacity C37 and electric capacity C38 electrically connect with the signal output part of HR911105A chips.The one of this preferred embodiment
Kind ASON unit also includes Network Physical Separator, and is connected to SD5103RB1 optical processors by Network Physical Separator interface
Network Physical Separator on, so as to complete the connection of network loop.
Intelligent control unit is with ethernet communication unit two-way communication principle：LM3S6911 43pin pin are by resistance R12
Pull up as logic high, LM3S6911 46pin pin are logic high by resistance R13 pull-up, when there is signal output pair
Pin is answered to drag down（For low level）So as to complete the conversion of a logic level, while it is loaded into Network Physical Separator signal and passes through net
Network isolator coupling one logic level signal of output.LM3S6911 40pin pin are logic high by resistance R14 pull-up,
It is logic high that LM3S6911, which is internally integrated PHY chip 37pin pin by resistance R15 pull-up, when Network Physical Separator has signal defeated
Corresponding pin drags down when going out（For low level）So as to complete the conversion of a logic level, patrolled even if the input of signal receives one
Collect level signal.Wherein, electric capacity C35, C36, C37 and C38 be bypass filter capacitor, for this point logical transition when power supply make
Into High-frequency Interference filter out effect.It is the bypass filter capacitor of Network Physical Separator for electric capacity C53, C55, for the logic of this point
Interference filtering caused by power supply acts on during conversion.Wherein, resistance R12, R13, R14 and R15 is 49.9 Ω.Electric capacity C12, C13
, C14 and C15 be 10pf electric capacity.Electric capacity C53 and C55 are 0.01uf electric capacity.
3 road RS485 interface circuits, 20 railway digital amounts input DI interface electricity built in a kind of ASON unit of the present invention
Road, 8 railway digital amounts output DO interface circuits.Referring to Fig. 4, Fig. 4 is an a kind of railway digital of ASON unit of the present invention
The circuit theory diagrams of amount output DO interface circuits.Digital output DO interface circuits include resistance R38, NPN type triode Q1, two
Pole pipe D1, the first RELAY chips and piezo-resistance RV1.Parallel resistance R38 between NPN type triode Q1 base stage and emitter, and
The output end electricity of input DO1, input DO1 and intelligent control unit is provided between resistance R38 and NPN type triode Q1 base stage
Connection.NPN type triode Q1 current collection level passes through diode D1, the first RELAY chips and piezo-resistance RV1 and output end
DO11, DO12 are electrically connected.Connected by the electrical connection of output end DO11, DO12 and output peripheral equipment output.
Referring to Fig. 3, Fig. 3 is a kind of electricity of the input DI interface circuits of digital quantity all the way of ASON unit of the present invention
Road schematic diagram.20 railway digital amounts input DI interface circuits built in a kind of ASON unit of the present invention.Wherein 4 railway digital amounts
Public one of DI interface circuits controllable LMDS Light Coupled Device connection chip is inputted, in preferred embodiments of the invention, using can
No. four optically coupled circuits built in the LMDS Light Coupled Device TLP521-4 of control, wherein LMDS Light Coupled Device TLP521-4, the first input DI
Interface output end is inputted by resistance R50, electric capacity C86, resistance R51 and LMDS Light Coupled Device TLP521-4 optically coupled circuit all the way
End connection；The LMDS Light Coupled Device TLP521-4 output end of optically coupled circuit all the way and the input DI1 electricity of the first input DI interfaces
Connection, and be grounded by resistance R54.External equipment is accessed by the input DI1 of the first input DI interfaces, and defeated by first
Enter the output end DIN1 outputs of DI interfaces, the output end DIN1 of the first input DI interfaces electrically connects with intelligent control unit.
In addition, the present invention a kind of ASON unit also include PON upstream Interfaces, VOIP interfaces, management interface and
Debugging interface.Voip interface circuit is the interactive voice interface circuit interacted by Ethernet.Upstream data PON is connected to PON
Processor SD5103RB1 PON upstream Interfaces, processing optical signal are converted into electric signal.Management interface is used for network management, and this sets
Standby port.Debugging interface is the debugging interface that serial ports is used for ONU all the way.
A kind of ASON unit of the present invention, intellectualized technology, ethernet technology is combined with PON technologies, by intelligence
Can gateway insertion optical network unit（ONU, ONT etc.）, realize a variety of headend equipment integration accesses.Use a kind of intelligence of the present invention
Energy optical network unit, which integrates group network system, includes front end sensors, OLT, ASON unit and server.Wherein front end passes
Sensor gathered data sends ASON unit to by data-interface, and ASON unit with OLT by communicating, finally
With service bureau's interactive communication.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (8)
1. a kind of ASON unit, is connected with OLT, it is characterised in that：Including optical network unit, intelligent control unit,
Ethernet communication unit, I/O unit and the power circuit for said units power supply, the optical network unit passes through described
Intelligent control unit controls the data communication of the I/O unit；
The I/O unit includes RS485 interface circuits, digital quantity input DI interface circuits and digital output DO interfaces
Circuit, the intelligent control unit and the RS485 interface circuits bidirectional data communication, the signal of the intelligent control unit are defeated
The signal output part for entering end with digital quantity input DI interface circuits electrically connects, the signal output part and number of the intelligent control unit
The signal input part electrical connection of word amount output DO interface circuits；
The intelligent control unit and the ethernet communication unit two-way communication, and the intelligent control unit built-in ethernet
PHY chip electrically connects with RJ45 interface circuits.
A kind of 2. ASON unit according to claim 1, it is characterised in that：The optical network unit is received including light
Device, light output control unit and signal exchange input control unit are sent out, traveling optical signal receipts are entered between the optical transceiver and the OLT
Hair, the light output control unit determine to close the light of the optical transceiver by luminous detection, the signal exchange input
Control unit is converted into optical signal by the signal for gathering the intelligent control unit.
3. according to a kind of ASON unit described in claim 1, it is characterised in that：The intelligent control unit includes
LM3S6911 microprocessors and its peripheral circuit.
A kind of 4. ASON unit according to claim 1, it is characterised in that：The optical network unit is
SD5103RB1 optical processors, the SD5103RB1 optical processors convert optical signals into electric signal, with the intelligent control single
First two-way communication link.
A kind of 5. ASON unit according to claim 1, it is characterised in that：The RS485 interface circuits pass through
Communication interface chip 65lbc184 and LM3S6911 microprocessor serial ports links.
A kind of 6. ASON unit according to claim 1, it is characterised in that：The digital quantity input DI interface electricity
Road is electrically connected by OPTO-ISOLATORS chips with the I/O pin of LM3S6911 microprocessors.
A kind of 7. ASON unit according to claim 1, it is characterised in that：The digital output DO interfaces electricity
Road is electrically connected by RELAY chips with the I/O pin of LM3S6911 microprocessors.
A kind of 8. ASON unit according to claim 7, it is characterised in that：The digital output DO interfaces electricity
Road includes resistance R38, NPN type triode Q1, diode D1, the first RELAY chips and piezo-resistance RV1.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236571.9A CN107196710A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network unit for possessing intelligent gateway |
| CN201510346115.0A CN105099559B (en) | 2015-06-19 | 2015-06-19 | A kind of ASON unit |
| CN201710236063.0A CN107196709A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network apparatus for possessing multiplex roles transmission |
| CN201710236062.6A CN107196708A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network unit of built-in ethernet circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510346115.0A CN105099559B (en) | 2015-06-19 | 2015-06-19 | A kind of ASON unit |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710236062.6A Division CN107196708A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network unit of built-in ethernet circuit |
| CN201710236571.9A Division CN107196710A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network unit for possessing intelligent gateway |
| CN201710236063.0A Division CN107196709A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network apparatus for possessing multiplex roles transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105099559A CN105099559A (en) | 2015-11-25 |
| CN105099559B true CN105099559B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510346115.0A Active CN105099559B (en) | 2015-06-19 | 2015-06-19 | A kind of ASON unit |
| CN201710236063.0A Pending CN107196709A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network apparatus for possessing multiplex roles transmission |
| CN201710236571.9A Pending CN107196710A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network unit for possessing intelligent gateway |
| CN201710236062.6A Pending CN107196708A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network unit of built-in ethernet circuit |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710236063.0A Pending CN107196709A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network apparatus for possessing multiplex roles transmission |
| CN201710236571.9A Pending CN107196710A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network unit for possessing intelligent gateway |
| CN201710236062.6A Pending CN107196708A (en) | 2015-06-19 | 2015-06-19 | A kind of optical network unit of built-in ethernet circuit |
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| CN (4) | CN105099559B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656436B (en) * | 2016-09-29 | 2020-05-22 | 安徽华速达电子科技有限公司 | Communication management method and system based on intelligent optical network unit |
| CN107592159A (en) * | 2017-09-29 | 2018-01-16 | 深圳达实智能股份有限公司 | A kind of intelligent building optical network system and optical network apparatus |
| CN111856999B (en) * | 2020-07-20 | 2022-03-25 | 安徽华速达电子科技有限公司 | Multi-terminal equipment management method and system based on intelligent optical network equipment |
| CN116506378B (en) * | 2023-06-27 | 2023-09-15 | 苏州浪潮智能科技有限公司 | Switch equipment, serial communication interface switching method and device thereof |
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| CN201127103Y (en) * | 2007-12-19 | 2008-10-01 | 深圳市三旺通信技术有限公司 | Double-light-mouth switch module |
| JP2009027518A (en) * | 2007-07-20 | 2009-02-05 | Mitsubishi Electric Corp | Communication failure detection system and its method |
| CN101651836A (en) * | 2009-09-18 | 2010-02-17 | 武汉长光科技有限公司 | Modularized monitoring terminal equipment based on EPON |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7693178B2 (en) * | 2005-12-30 | 2010-04-06 | Teknovus, Inc. | Small form factor, pluggable ONU |
| CN203104451U (en) * | 2013-02-01 | 2013-07-31 | 浙江工业大学 | Industrial ONU (optical network unit) equipment |
| CN203445883U (en) * | 2013-09-17 | 2014-02-19 | 讯达康通讯设备(惠州)有限公司 | Optical network unit (ONU) terminal apparatus of Ethernet passive optical network (EPON) system |
| CN103607791A (en) * | 2013-12-03 | 2014-02-26 | 太仓市同维电子有限公司 | Double-uplink optical network unit based on LTE and PON |
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2015
- 2015-06-19 CN CN201510346115.0A patent/CN105099559B/en active Active
- 2015-06-19 CN CN201710236063.0A patent/CN107196709A/en active Pending
- 2015-06-19 CN CN201710236571.9A patent/CN107196710A/en active Pending
- 2015-06-19 CN CN201710236062.6A patent/CN107196708A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009027518A (en) * | 2007-07-20 | 2009-02-05 | Mitsubishi Electric Corp | Communication failure detection system and its method |
| CN201127103Y (en) * | 2007-12-19 | 2008-10-01 | 深圳市三旺通信技术有限公司 | Double-light-mouth switch module |
| CN101651836A (en) * | 2009-09-18 | 2010-02-17 | 武汉长光科技有限公司 | Modularized monitoring terminal equipment based on EPON |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107196708A (en) | 2017-09-22 |
| CN107196709A (en) | 2017-09-22 |
| CN105099559A (en) | 2015-11-25 |
| CN107196710A (en) | 2017-09-22 |
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Address after: 230088 Anhui Province, Hefei high tech Zone Innovation Avenue, No. 2800 Innovation Industrial Park, building H2, room two, No. 276 Applicant after: Anhui huasuda Electronic Technology Co. Ltd. Address before: 230000 room C507, Golden Plaza, No. 155, Jinzhai Road, Shushan District, Anhui, Hefei, China Applicant before: HEFEI HUASUDA ELECTRONIC TECHNOLOGY CO., LTD. |
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