CN205249429U - Optical link is system architecture alternately based on circuit territory - Google Patents
Optical link is system architecture alternately based on circuit territory Download PDFInfo
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- CN205249429U CN205249429U CN201520927785.7U CN201520927785U CN205249429U CN 205249429 U CN205249429 U CN 205249429U CN 201520927785 U CN201520927785 U CN 201520927785U CN 205249429 U CN205249429 U CN 205249429U
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Abstract
The utility model relates to an optical link is system architecture alternately based on circuit territory, adopt backplate plug -in card framework, the plug -in card contains professional card, the master control is the card alternately, the system is based on tertiary strict clog -free CLOS networking, high -speed alternately chip composite through the separation becomes to have the input stage, the intermediate stage, the clog -free crossover network of strictness of output stage, multistage signal integrality chip has been adopted at the digital signal transmission in -process, pass through the automatic equalization, the isometric processing of circuit, and the no error code of adjustable pre -emphasis technology signal transmission, the technique effect is the optical link cross system at the highest 11.5Gbps of superdata of circuit territory realization, can extensively be arranged in high -speed optical communication system backbone network, field such as convergence -level and large -scale data switching center.
Description
Technical field
The utility model relates to a kind of optical link cross system framework and implementation method, particularly a kind of optical link cross system framework and implementation method based on circuit domain.
Background technology
Along with going deep into of the communications industry level of informatization, the oarse-grained reciprocal exchange of business is progressively risen, the data traffic that causes Access Layer, metropolitan area layer and backbone network all increases fast, and as the fiber optic communication of telecommunication transmission main media, its transmission bandwidth presents the growth of multiple. In the face of increasing signal exchange demand, traditional light intersects equipment because cost is high, introduces the problems such as insertion loss, more and more becomes the bottleneck of light access front end route matingplan.
Summary of the invention
In view of problems of the prior art, the utility model provides a kind of and realizes in circuit domain the system architecture that optical link intersects, and realizes transmitting without error code of high speed signal, and concrete technical scheme is, an optical link cross system framework based on circuit domain, comprises cabinet, backboard, several piece service card, master control crossed card, several connectors, is characterized in that: cabinet adopts the self-defined framework of horizontal plug-in card, and backboard is positioned at the middle part of cabinet, is fixed with several connectors on backboard, there is connection bus inside, and bus is divided into control bus and data/address bus, service card, master control crossed card adopts the connected mode of the horizontal plug-in card of connector to be connected with backboard, and a described service card comprises photoelectric conversion module, n × 2n Cross module, first signal integrality chip, secondary signal integrality chip and 2n × n Cross module, electrooptic conversion module, is connected to photoelectric conversion module, n × 2n Cross module, first signal integrality chip is connected in series successively, and first signal integrality chip is output, electrooptic conversion module, 2n × n Cross module and secondary signal integrality chip are connected in series successively, and secondary signal integrality chip is input, and master control crossed card 4 comprises signal integrity chip, r × r Cross module, signal integrity chip, r × r Cross module serial connection, signal integrity chip is output, and r × r Cross module is input, and the horizontal plug-in card of several service cards connects several connectors of backboard, a horizontal plug-in card of master control crossed card connects the connector of backboard, and system crossover network is divided into input stage, intergrade, the three-level structure of output stage, input stage is r n × 2n Cross module, and intergrade is 2n r × r Cross module, and output stage is r 2n × n Cross module. the connected mode of input stage and intergrade is, the 1st n × 2n Cross module 2n road output of input stage is connected with the 1st tunnel input of intergrade 2n r × r Cross module respectively, the output of the 2nd n × 2n Cross module 2n road of input stage is connected with the 2nd tunnel input of intergrade 2n r × r Cross module respectively, the like r n × 2n Cross module 2n road of input stage export respectively and input and be connected with the r road of intergrade 2n r × r Cross module, intergrade with the contact method of output stage is: the 1st tunnel output of intergrade 2n r × r Cross module is connected with the 1st 2n × n Cross module 2n road input of output stage respectively, the 2nd tunnel output of intergrade 2n r × r Cross module is connected with the 2nd 2n × n Cross module 2n road input of output stage respectively, by that analogy, the r road output of intergrade 2n r × r Cross module is connected with the 1st 2n × n Cross module 2n road input of output stage respectively, realizes K × K(K=r × n) strictly non-blocking exchange network of individual route.
The transmission path of signal is, optical signal carries out opto-electronic conversion after entering service card, converting the signal of telecommunication to is transferred on backboard by connector, be transferred on master control crossed card by back panel connector again, master control crossed card intersects rear signal and turns back on backboard by connector, finally transfer back to service card by the connector of backboard again, carry out electric light conversion through service card, convert optical signal output to.
On the service card and master control crossed card of communication link, all signal integrity chips that adds after connector, use DFE automatic equalization technology and adjustable pre-emphasis technique, ensure transmitting without error code of signal.
The long process such as the cabling employing of the links at different levels of signal.
Technique effect of the present utility model is, system stability, reaches as high as the signal rate of 11.5Gbps, has strictly non-blocking characteristic, broadcast replication function, and the powerful cost performance again of purer optical switching network is high, is applicable to current field of telecommunications application.
Brief description of the drawings
Fig. 1 is the flow graph of signal of the present utility model.
Fig. 2 is system connection layout of the present utility model.
Fig. 3 is three grades of cross knot compositions of the present utility model.
Fig. 4 is construction profile figure of the present utility model.
Detailed description of the invention
As shown in Figure 2,4, system chassis 1 adopts the self-defined framework of horizontal plug-in card, backboard 2 is positioned at the middle part of standard PC case 1, service card 3, master control crossed card 4 are taked the laterally connected mode of plug-in card of front and back, its connector adopts the ZD+ high-speed differential signal connector that can support the most at a high speed 25Gbps speed, its backboard 2 buses are divided into control bus and data/address bus, and data/address bus adopts standard LVDS bus, and crossover bus adopts MLVDS bus.
As shown in Figure 3, system crossover network is divided into the three-level structure of input stage, intergrade, output stage, and wherein input, output stage realize on service card 3, and intergrade realizes on master control crossed card 2. Input stage is r n × 2n high linear speed electricity Cross module, and intergrade is 2n r × r high linear speed electricity Cross module, and output stage is r 2n × n high linear speed electricity Cross module. The connected mode of input stage and intergrade is, the 1st n × 2n module 2n road output of input stage is connected with the 1st tunnel input of intergrade 2n r × r module respectively, the output of the 2nd n × 2n module 2n road of input stage is connected with the 2nd tunnel input of intergrade 2n r × r module respectively, the like r n × 2n module 2n road of input stage export respectively and input and be connected with the r road of intergrade 2n r × r module; Intergrade is connected with the 1st 2n × n module 2n road input of output stage respectively with the 1st tunnel output that the contact method of output stage is intergrade 2n r × r module, the 2nd tunnel output of intergrade 2n r × r module is connected with the 2nd 2n × n module 2n road input of output stage respectively, by that analogy, the r road output of intergrade 2n r × r module is connected with the 1st 2n × n module 2n road input of output stage respectively, and this crossover network can be realized K × K(K=r × n) strictly non-blocking exchange network of individual route.
The implementation method of the optical link cross system that as shown in Figure 1, circuit domain realizes. the transmission path of signal is, optical signal carries out opto-electronic conversion by digital light module after entering service card 3, convert the signal of telecommunication to transmits on service card 3, for overcoming the nonlinear effect of transmission, need first pass through the processing of signal integrity chip, be transferred on backboard 2 by high speed connector again, backboard 2 signals are transferred on master control crossed card 4 by high speed connector again, the signal attenuation that the impedance discontinuity now causing due to two-stage high speed connector and the long transmission path of the 600mm of backboard 2 cause, after entering master control crossed card 4, signal need one stage signal integrality chip to carry out signal regeneration optimization, signal turns back to by high speed connector on backboard 2 after service card 3 intersects again, finally transfer back to service card 3 by the connector of backboard 2 again, after processing, one stage signal integrality chip carries out electric light conversion by the digital light module on service card 3 again, convert optical signal output to. for control the problems such as crosstalking of introducing up to the high speed signal of 11.5Gbps, transmitting, attenuation in long Distance Transmission process, in the signal transmission link of service card 3 and master control crossed card 4, be abutted against connector one side and add signal integrity chip (master control crossed card 4 outputs to not plus signal integrality chip of this section of high speed connector after intersecting), integrality chip adopts DSP algorithm, by the quality of automatic equalization and adjustable pre-emphasis technique control signal, adjust the eye pattern effect of signal, to realize transmitting without error code of high speed signal.
Major advantage of the present utility model is: 1. signal rate is high, reaches as high as 11.5Gbps, is applicable to current field of telecommunications main flow optical networking transfer rate; 2. there is strictly non-blocking characteristic, adopt which kind of routing algorithm can not introduce rearrangement problem, meet the requirement that when route apolegamy in light network system, Uncrossed route does not produce error code, and system has broadcast replication function; 3. system stability, meets field of telecommunications to the requirement of the communication system bit error rate; 4. the powerful cost performance again of the pure optical switching network of contrast is high.
Claims (4)
1. the optical link cross system framework based on circuit domain, comprises cabinet (1), backboard (2), several piece service card (3), master control crossed card (4), several connectors, is characterized in that: cabinet (1) adopts the self-defined framework of horizontal plug-in card, and backboard (2) is positioned at the middle part of cabinet (1), and backboard is fixed with several connectors on (2), there is connection bus inside, and bus is divided into control bus and data/address bus, service card (3), master control crossed card (4) adopts the connected mode of the horizontal plug-in card of connector to be connected with backboard (2), and a described service card (3) comprises photoelectric conversion module, n × 2n Cross module, first signal integrality chip, secondary signal integrality chip and 2n × n Cross module, electrooptic conversion module, is connected to photoelectric conversion module, n × 2n Cross module, first signal integrality chip is connected in series successively, and first signal integrality chip is output, electrooptic conversion module, 2n × n Cross module and secondary signal integrality chip are connected in series successively, and secondary signal integrality chip is input, and master control crossed card (4) comprises signal integrity chip, r × r Cross module, signal integrity chip, r × r Cross module serial connection, signal integrity chip is output, r × r Cross module is input, several service cards (3) are several connectors of plug-in card connection backboard (2) laterally, a master control crossed card (4) is the connector of plug-in card connection backboard (2) laterally, and system crossover network is divided into input stage, intergrade, the three-level structure of output stage, input stage is r n × 2n Cross module, and intergrade is 2n r × r Cross module, and output stage is r 2n × n Cross module, the connected mode of input stage and intergrade is, the 1st n × 2n Cross module 2n road output of input stage is connected with the 1st tunnel input of intergrade 2n r × r Cross module respectively, the output of the 2nd n × 2n Cross module 2n road of input stage is connected with the 2nd tunnel input of intergrade 2n r × r Cross module respectively, the like r n × 2n Cross module 2n road of input stage export respectively and input and be connected with the r road of intergrade 2n r × r Cross module, intergrade with the contact method of output stage is: the 1st tunnel output of intergrade 2n r × r Cross module is connected with the 1st 2n × n Cross module 2n road input of output stage respectively, the 2nd tunnel output of intergrade 2n r × r Cross module is connected with the 2nd 2n × n Cross module 2n road input of output stage respectively, by that analogy, the r road output of intergrade 2n r × r Cross module is connected with the 1st 2n × n Cross module 2n road input of output stage respectively, realizes K × K(K=r × n) strictly non-blocking exchange network of individual route.
2. a kind of optical link cross system framework based on circuit domain as claimed in claim 1, it is characterized in that: the transmission path of signal is, optical signal carries out opto-electronic conversion after entering service card (3), converting the signal of telecommunication to is transferred on backboard (2) by connector, be transferred on master control crossed card (4) by backboard (2) connector again, master control crossed card (4) intersects rear signal and turns back on backboard (2) by connector, finally transfer back to service card (3) by the connector of backboard (2) again, carry out electric light conversion through service card (3), convert optical signal output to.
3. a kind of optical link cross system framework based on circuit domain as claimed in claim 1, it is characterized in that: on the service card (3) and master control crossed card (4) of communication link, all signal integrity chips that adds after connector, use DFE automatic equalization technology and adjustable pre-emphasis technique, ensure transmitting without error code of signal.
4. a kind of optical link cross system framework based on circuit domain as claimed in claim 1, is characterized in that: the long process such as the cabling employing of the links at different levels of signal.
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| CN201520927785.7U CN205249429U (en) | 2015-11-20 | 2015-11-20 | Optical link is system architecture alternately based on circuit territory |
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| CN201520927785.7U CN205249429U (en) | 2015-11-20 | 2015-11-20 | Optical link is system architecture alternately based on circuit territory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108449219A (en) * | 2018-06-21 | 2018-08-24 | 武汉意谷光电科技有限公司 | A kind of method and system of optical module Automatic Optimal configuration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108449219A (en) * | 2018-06-21 | 2018-08-24 | 武汉意谷光电科技有限公司 | A kind of method and system of optical module Automatic Optimal configuration |
| CN108449219B (en) * | 2018-06-21 | 2021-05-14 | 武汉意谷光电科技有限公司 | Method and system for automatically optimizing configuration of optical module |
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