CN204539379U - A kind of optical network unit of supporting business isolation - Google Patents
A kind of optical network unit of supporting business isolation Download PDFInfo
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- CN204539379U CN204539379U CN201520303474.3U CN201520303474U CN204539379U CN 204539379 U CN204539379 U CN 204539379U CN 201520303474 U CN201520303474 U CN 201520303474U CN 204539379 U CN204539379 U CN 204539379U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 74
- 238000002955 isolation Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000008054 signal transmission Effects 0.000 claims description 6
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
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- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model relates to the optical network unit of a kind of supporting business isolation, and optical network unit at least comprises: two optical modules, two PON chips, two exchange chips, two ports and CPU; Each optical module, PON chip, exchange chip and port one_to_one corresponding; PON chip is connected with optical module and exchange chip respectively; Exchange chip is connected with port and CPU respectively; Two ports are respectively used to the terminal equipment connecting different business; Two optical modules are respectively used to the OLT connecting different business; The optical network unit that the utility model provides, when up, is communicated with the OLT of different business by different optical module; Time descending, communicated with the terminal equipment of different business by different port, for different business, by independently exchange chip and PON chip process, independently exchange chip carries out monitor and managment by same CPU simultaneously, achieve the isolation access of different business and transmit and save system resource, improving equipment dependability.
Description
Technical field
The utility model relates to a kind of optical network unit, specifically relates to the optical network unit of a kind of supporting business isolation.
Background technology
Along with progress and the maturation of packetizing Optical Fiber Transmission access technology, the developing direction of intelligent grid and service control is progressively transitioned into adopt the unified carrying of packetizing optical fiber multi service access network, and the main flow direction of intelligent acess technical development of dividing into groups is PON technology.PON technology is made up of optical line terminal (OLT), Optical Distribution Network (ODN), optical network unit (ONU) and management system thereof, and that wherein usage quantity is maximum is communication terminal device ONU.
The type of service of current electric power system Access Network is a lot, not only comprise enterprise and production information business, also comprise the strict service control of real-time, reliability requirement, optical network unit of the prior art, in business isolation, can not realize the physical isolation of logic isolation to same safe great Qu business and different safe great Qu business.
In prior art, the type of service of electric power system Access Network is a lot, not only comprise enterprise and production information business, also comprise the strict service control of real-time, reliability requirement, existing optical network unit, in business isolation, can not realize the physical isolation of logic isolation to same safe great Qu business and different safe great Qu business, the optical network unit that the utility model provides a kind of supporting business to isolate, when up, communicated with the OLT of different business by different optical module; Time descending, communicated with the terminal equipment of different business by different port, for different business, by independently exchange chip and PON chip process, described exchange chip completes the storage of ethernet frame, exchange and forwarding, and described PON chip completes conversion and the PON function of mac frame, and independently exchange chip carries out monitor and managment by same CPU simultaneously, achieve the isolation access of different business and transmit and save system resource, improving equipment dependability.
Utility model content
For the deficiencies in the prior art, the optical network unit that the utility model provides a kind of supporting business to isolate, when up, is communicated with the OLT of different business by different optical module; Time descending, communicated with the terminal equipment of different business by different port, for different business, by independently exchange chip and PON chip process, independently exchange chip carries out monitor and managment by same CPU simultaneously, achieve the isolation access of different business and transmit and save system resource, improving equipment dependability.
The purpose of this utility model adopts following technical proposals to realize:
An optical network unit for supporting business isolation, its improvements are, described optical network unit at least comprises: two optical modules, two PON chips, two exchange chips, two ports and CPU;
Each optical module, PON chip, exchange chip and port one_to_one corresponding;
Described PON chip is connected with described optical module and described exchange chip respectively; Described exchange chip is connected with described port and described CPU respectively;
Described two ports are respectively used to the terminal equipment connecting different business; Described two optical modules are respectively used to the OLT connecting different business.
Preferably, described port comprises: Ethernet interface, serial ports and transceiving chip; Described port is connected with described terminal equipment with described serial ports by described Ethernet interface; Described port is connected with described exchange chip by described transceiving chip; Described serial ports is connected with described transceiving chip.
Further, the ethernet frame information that described transceiving chip is used for being received by described Ethernet interface is converted to ethernet frame information transmission to described exchange chip.
Further, described serial ports is serial ports RS232, and described Ethernet interface is Ethernet interface RJ45.
Preferably, described exchange chip comprises: described exchange chip is connected with described port by FE mouth, and time up, described exchange chip, by the GE mouth of described exchange chip is set to PHY pattern, carries out MAC-MAC with described PON chip and docks; Time descending, described exchange chip is for receiving the data flow of the mac frame form of described PON chip transmission.
Further, described exchange chip carries out MDC/MDCIO by the management port of described exchange chip with described CPU and communicates.
Preferably, described PON chip comprises: described PON chip is connected with described optical module and described PON chip by the PON mouth of described PON chip; Time up, the UNI of described PON chip receives the MAC data frame that described exchange chip sends; Time descending, described PON chip receives the bit stream of described optical module transmission, and described bit stream is converted to mac frame data.
Preferably, described optical module comprises: time up, and described optical module receives the bit stream of described PON chip transmission, and is converted into optical signal transmission in optical fiber; Time descending, described optical module receives the light signal that OLT issues, and is converted into electric signal transmission to described PON chip.
Compared with the prior art, the beneficial effect that the utility model reaches is:
Accompanying drawing explanation
Fig. 1 is the optical network unit structural representation of a kind of supporting business isolation that the utility model provides;
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Make the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides the optical network unit of a kind of supporting business isolation, and described optical network unit at least comprises: two optical modules, two PON chips, two exchange chips, two ports and CPU;
Each optical module, PON chip, exchange chip and port one_to_one corresponding;
Described PON chip is connected with described optical module and described exchange chip respectively; Described exchange chip is connected with described port and described CPU respectively;
Described two ports are respectively used to the terminal equipment connecting different business; Described two optical modules are respectively used to the OLT connecting different business.
Wherein, described optical network unit inside can be expanded according to practical business kind situation, comprise multiple optical module one to one, PON chip, exchange chip and port, thus realize the isolation of multiple business, such as, as shown in Figure 1, described optical network unit inside comprises two optical modules, two PON chips, two exchange chips, two ports and CPU, is respectively optical module 1, optical module 2, PON chip 1, PON chip 2, exchange chip 1, exchange chip 2, port one, port and CPU;
Concrete, described port comprises: Ethernet interface, serial ports and transceiving chip; Described port is connected with described terminal equipment with described serial ports by described Ethernet interface; Described port is connected with described exchange chip by described transceiving chip; Described serial ports is connected with described transceiving chip.
The ethernet frame information that described transceiving chip is used for being received by described Ethernet interface is converted to ethernet frame information transmission to described exchange chip.
Described serial ports is serial ports RS232, and described Ethernet interface is Ethernet interface RJ45.
Described exchange chip comprises: described exchange chip is connected with described port by FE mouth, and time up, described exchange chip, by the GE mouth of described exchange chip is set to PHY pattern, carries out MAC-MAC with described PON chip and docks; Time descending, described exchange chip is for receiving the data flow of the mac frame form of described PON chip transmission.
Described exchange chip carries out MDC/MDCIO by the management port of described exchange chip with described CPU and communicates.
In actual applications, described exchange chip has also carried out corresponding process to mutual signal, such as: described exchange chip is connected with described port by FE mouth, when up, also carry out the bit stream of receiving port transmission, and carry out 4B/5B error correction, insert lead code stamp user tag as required, the GE mouth of described exchange chip is arranged to PHY pattern simultaneously, carries out MAC-MAC dock with described PON chip; Time descending, receive the data flow of the mac frame form of PON chip transmission, row cache of going forward side by side, business categorizing, object MAC search, learn and forward.
Described PON chip comprises: described PON chip is connected with described optical module and described PON chip by the PON mouth of described PON chip; Time up, the UNI of described PON chip receives the MAC data frame that described exchange chip sends; Time descending, described PON chip receives the bit stream of described optical module transmission, and described bit stream is converted to mac frame data.
In actual applications, described exchange chip has also carried out corresponding process to mutual signal, such as: described PON chip is connected with described optical module, described PON chip by PON mouth.Time up, the UNI of PON chip receives the MAC data frame that described exchange chip sends, and carry out rate limit, add VLAN-Tag when needing, scheduling encryption, change into bit stream after adding LLID to optical module; Time descending, receive the bit stream of described optical module transmission, and be transformed into mac frame data, through deciphering, subpackage, speed limit, need time VLAN outer VLAN tag process after, be transmitted to described exchange chip.
Described optical module comprises: time up, and described optical module receives the bit stream of described PON chip transmission, and is converted into optical signal transmission in optical fiber; Time descending, described optical module receives the light signal that OLT issues, and is converted into electric signal transmission to described PON chip.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; although be described in detail the utility model with reference to above-described embodiment; those of ordinary skill in the field are to be understood that: still can modify to embodiment of the present utility model or equivalent replacement; and not departing from any amendment of the utility model spirit and scope or equivalent replacement, it all should be encompassed within claims of the present utility model.
Claims (8)
1. an optical network unit for supporting business isolation, it is characterized in that, described optical network unit at least comprises: two optical modules, two PON chips, two exchange chips, two ports and CPU;
Each optical module, PON chip, exchange chip and port one_to_one corresponding;
Described PON chip is connected with described optical module and described exchange chip respectively; Described exchange chip is connected with described port and described CPU respectively;
Described two ports are respectively used to the terminal equipment connecting different business; Described two optical modules are respectively used to the OLT connecting different business.
2. optical network unit as claimed in claim 1, it is characterized in that, described port comprises: Ethernet interface, serial ports and transceiving chip; Described port is connected with described terminal equipment with described serial ports by described Ethernet interface; Described port is connected with described exchange chip by described transceiving chip; Described serial ports is connected with described transceiving chip.
3. optical network unit as claimed in claim 2, is characterized in that, the ethernet frame information that described transceiving chip is used for being received by described Ethernet interface is converted to ethernet frame information transmission to described exchange chip.
4. optical network unit as claimed in claim 2, it is characterized in that, described serial ports is serial ports RS232, and described Ethernet interface is Ethernet interface RJ45.
5. optical network unit as claimed in claim 1, it is characterized in that, described exchange chip comprises: described exchange chip is connected with described port by FE mouth, time up, described exchange chip, by the GE mouth of described exchange chip is set to PHY pattern, carries out MAC-MAC with described PON chip and docks; Time descending, described exchange chip is for receiving the data flow of the mac frame form of described PON chip transmission.
6. optical network unit as claimed in claim 5, it is characterized in that, described exchange chip carries out MDC/MDCIO by the management port of described exchange chip with described CPU and communicates.
7. optical network unit as claimed in claim 1, it is characterized in that, described PON chip comprises: described PON chip is connected with described optical module and described PON chip by the PON mouth of described PON chip; Time up, the UNI of described PON chip receives the MAC data frame that described exchange chip sends; Time descending, described PON chip receives the bit stream of described optical module transmission, and described bit stream is converted to mac frame data.
8. optical network unit as claimed in claim 1, it is characterized in that, described optical module comprises: time up, and described optical module receives the bit stream of described PON chip transmission, and is converted into optical signal transmission in optical fiber; Time descending, described optical module receives the light signal that OLT issues, and is converted into electric signal transmission to described PON chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520303474.3U CN204539379U (en) | 2015-05-12 | 2015-05-12 | A kind of optical network unit of supporting business isolation |
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| CN201520303474.3U CN204539379U (en) | 2015-05-12 | 2015-05-12 | A kind of optical network unit of supporting business isolation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450291A (en) * | 2015-11-09 | 2016-03-30 | 国网天津市电力公司 | Realization method for optical link isolation-based power terminal communication network access system |
| CN106330908A (en) * | 2016-08-24 | 2017-01-11 | 广州市芯德电子技术有限公司 | Isolation system and method of optical line terminal (OLT) system management flow and user traffic flow |
| CN106452591A (en) * | 2016-12-07 | 2017-02-22 | 深圳市飞鸿光电子有限公司 | Flexibly deployed optical module ONT (optical network terminal) |
| CN109257664A (en) * | 2018-10-26 | 2019-01-22 | 武汉长光科技有限公司 | A method of supporting PON system port isolation |
| CN111131092A (en) * | 2019-12-31 | 2020-05-08 | 深圳市源拓光电技术有限公司 | Power grid process switch and configuration method |
-
2015
- 2015-05-12 CN CN201520303474.3U patent/CN204539379U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450291A (en) * | 2015-11-09 | 2016-03-30 | 国网天津市电力公司 | Realization method for optical link isolation-based power terminal communication network access system |
| CN105450291B (en) * | 2015-11-09 | 2017-12-05 | 国网天津市电力公司 | The implementation method of electric power terminal communication network access system based on optical link isolation |
| CN106330908A (en) * | 2016-08-24 | 2017-01-11 | 广州市芯德电子技术有限公司 | Isolation system and method of optical line terminal (OLT) system management flow and user traffic flow |
| CN106452591A (en) * | 2016-12-07 | 2017-02-22 | 深圳市飞鸿光电子有限公司 | Flexibly deployed optical module ONT (optical network terminal) |
| CN106452591B (en) * | 2016-12-07 | 2019-12-24 | 深圳市飞鸿光电子有限公司 | Method for deploying optical modules ONTs (optical network terminals) flexibly deployed |
| CN109257664A (en) * | 2018-10-26 | 2019-01-22 | 武汉长光科技有限公司 | A method of supporting PON system port isolation |
| CN111131092A (en) * | 2019-12-31 | 2020-05-08 | 深圳市源拓光电技术有限公司 | Power grid process switch and configuration method |
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