CN102082974A - Backing plate - Google Patents
Backing plate Download PDFInfo
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- CN102082974A CN102082974A CN2010106014762A CN201010601476A CN102082974A CN 102082974 A CN102082974 A CN 102082974A CN 2010106014762 A CN2010106014762 A CN 2010106014762A CN 201010601476 A CN201010601476 A CN 201010601476A CN 102082974 A CN102082974 A CN 102082974A
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- backboard
- preset value
- core control
- hard core
- groove
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Abstract
The invention provides a backing plate. The backing plate comprises a service slot and a core management slot which are mutually connected by a route, wherein the routing is divided into a first part for connecting the service slot and a second part for connecting the core management slot, and the first part and the second part are connected with each other by virtue of a pluggable connector. The route is divided into two parts, and the two parts can be mutually connected by virtue of the pluggable connector, thus the problem that a high speed signal is attenuated when being transmitted remotely is effectively solved; meanwhile, the backing plate can be smoothly upgraded, and the cost of a customer is reduced.
Description
Technical field
The embodiment of the invention relates to networking technology area, relates in particular to a kind of backboard.
Background technology
The backboard of existing communication cabinet is the basic platform of whole data communication.Traditional backboard is made up of a plurality of parts, and important composition is respectively professional groove, hard core control groove and cabling.Wherein, the hard core control groove is connected by cabling with professional groove, be connected on the backboard by professional groove at business module, after the hard core control module is connected on the backboard by the hard core control groove, business module can send to the hard core control module with signal by professional groove, cabling, hard core control groove, carries out relevant business with control hard core control module.
Along with the continuous increase of data business volume,, require the bandwidth of backboard also will further increase in order to carry out data transmit-receive more at high speed.Under the constant prerequisite of pronotum link structure, will improve the speed that is connected between each professional groove and the hard core control groove if increase the bandwidth of backboard.Along with the increase of track lengths, the decay of signal also can constantly increase, and this just makes that some will become the bottleneck of signal transmission on the backboard than long cablings.And then the business module and the interactive signal between the hard core control module that have caused connecting on the backboard can't be by correct identifications because decay is too much when arriving receiving terminal.
The structural representation that passes through backboard 1 upward wiring L2 business module 2 connected to one another and hard core control module 3 as shown in Figure 1.Wherein, as shown in Figure 1, integrated circuit in the business module 2 (Integrated Circuit, abbreviate as: IC) send between the professional groove 11 on terminal (Tx) and the backboard 1 and link to each other, link to each other by cabling L3 between the hard core control groove 12 on the IC reception terminal (Rx) in the hard core control module 3 and the backboard 1 by cabling L1.Wherein, suppose the a1 that decays on the cabling L1, decay to a2 on the cabling L2, decay to a3 on the cabling L3.Decay summation on the whole passage from Tx to Rx is A=a1+a2+a3.Because the IC device of business module 2 and hard core control module 3 all has the preemphasis of transmission ability and receives the ability of equalization, wherein, transmitting terminal Tx sends the preemphasis ability and is 12db to the maximum, receiving terminal Rx receives the ability of equalization and is 8db to the maximum, and this compensation ability is all for the Line Attenuation compensation.Therefore, when the IC device possessed these two compensation abilitys, the decay of circuit can allow many 20db.Putative signal can allow track lengths under the condition without any compensation be L, allow the amount of decay this moment is a, condition during so whole passage reliable transmitting data is: the minimum attenuation surplus that 20db+a 〉=a1+a2+a3+3db, 3db wherein require when being the channel reliability transmission.
In case when data rate became big, the length L that the signal on the circuit can effectively transmit will shorten, promptly a in the following formula can reduce, and the attenuation of equal length cabling can increase, and promptly the a1 in the following formula, a2, a3 all can increase.So, when rate variation arrived certain program, above-mentioned inequality just may no longer be set up, and means promptly that also the transfer of data of whole passage becomes no longer reliable.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
Present back plate design method has not satisfied the backplane interconnect designing requirement of such two-forty interface.Can't satisfy the requirement of backboard smooth upgrade especially according to traditional backboard high speed design method, when bandwidth need increase, the user may change the cabinet backboard to overcome the problem that can't promote bandwidth with regard to needs.
Summary of the invention
The embodiment of the invention provides a kind of backboard, can't satisfy the more problem of high bandwidth in order to solve backboard of the prior art.
The embodiment of the invention provides a kind of backboard, comprises by cabling interconnected each other professional groove and hard core control groove:
Described cabling is divided into first that connects professional groove and the second portion that is connected the hard core control groove;
Described first and second portion are connected to each other by pluggable connector.
The backboard that the embodiment of the invention provides, by cabling is divided into two parts, these two parts are connected with each other by pluggable connector, efficiently solve the problem of signal attenuation of high speed signal long-distance transmissions, make the backboard smooth upgrade simultaneously, and reduced client's cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation that passes through backboard upward wiring business module connected to one another and hard core control module that Fig. 1 provides for prior art;
The back board structure schematic diagram that Fig. 2 provides for the embodiment of the invention;
A kind of pluggable connector structure schematic diagram that Fig. 3 provides for the embodiment of the invention;
The another kind of pluggable connector structure schematic diagram that Fig. 4 provides for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The back board structure schematic diagram that Fig. 2 provides for the embodiment of the invention, as shown in Figure 2, this backboard comprises: the professional groove 11 and the hard core control groove 12 that interconnect each other by cabling L2.
Wherein, cabling L2 is divided into the A of first that connects professional groove 11, and the second portion B that connects hard core control groove 12.Be connected to each other by pluggable connector 13 between A of first and the second portion B.
If the length sum L2 of A of first and second portion B is greater than first preset value, this pluggable connector structure schematic diagram can be as shown in Figure 3, this connector 13 is a kind of signal condition chip, similar with the balanced chip of EQ, this chip possesses the equilibrium of receiving and sends the compensation ability of preemphasis, wherein, the reception compensation ability is E1, and the transmission compensation ability is E2.In this case, the condition during whole passage reliable transmitting data is: 20db+2a+E1+E2 〉=a1+a2+a3+3db.
Here need to prove that this signal condition chip can carry out signal waveform and reform after receiving signal, this just is equivalent to the signal starting point of transmitting terminal has been become the signal condition module, so the attenuation that allows of chip is equivalent to and has increased a.So the left side of above-mentioned reliable transmitting data condition has increased a again.The attenuation that allows through whole passage after such design strengthens greatly, and the speed that therefore identical track lengths allows also can be higher.
This first preset value is that under the present technical background, first preset value can be 5000mil, 1mil=0.0254mm, i.e. 127mm here according to the performance setting of each current module of backboard, cabling.Certainly, 127mm only is the empirical value that provides according to the current techniques development, and along with continuous advancement in technology, this value can also further be adjusted.
For the effect optimization that makes the decay of cable tray control signal, here the position to connector 13 limits, be that ratio between the length of length and second portion B of the A of first is directly proportional with the reception compensation ability E1 of signal condition chip and the ratio that sends between the compensation ability E2, proportionality coefficient is represented that by k k can get positive count.Also promptly:
L
A/L
B＝k*E1/E2
Preferred a kind of mode, k is 1, then the length of the A of first is: L2*E1/ (E1+E2), the length of second portion B is: L2*E2/ (E1+E2).
If the length sum L2 of A of first and second portion B is smaller or equal to first preset value, 127mm (being 5000mil) for example, this pluggable connector structure schematic diagram can be as shown in Figure 4, this connector 13 can be direct-connected module, promptly on this direct-connected module without any IC class device, its effect be exactly with the pin at connector 13 two ends in twos short circuit get up, if this connector 13 is connected between A of first and the second portion B like this, just be connected together to hard core control module 3 from business module 2 like this, constituted a complete passage by the cable tray that this connection is got up.In order to make the effect optimization of cable tray control signal decay, the position to connector 13 limits here, i.e. the equal in length of A of first and second portion B, and promptly connector 13 is positioned at the centre position of L2.
Simultaneously, in order further to maximize the long-distance transmissions high speed signal, referring to Fig. 1, reception/transmission the terminal that limits each business module 2 is no more than second preset value to the track lengths L1 of professional groove 11, and the reception of each hard core control module 3/transmission terminal is no more than the 3rd preset value to the track lengths L3 of hard core control groove 12.The sending and receiving chip that is about on the module is placed near the corresponding groove that connects.Purpose is the Line Attenuation that reduces as much as possible on the module.Second preset value here, the 3rd preset value are according to the performance setting of business module, hard core control module, cabling, under the present technical background, second preset value, the 3rd preset value can be got different values, also can get identical value, here preferably be 152.4mm (being 6000mil), certainly, 152.4mm only is the empirical value that provides according to the current techniques development, along with continuous advancement in technology, this value can also further be adjusted.
The embodiment of the invention provides a kind of backboard, by cabling is divided into two parts, these two parts are connected with each other by pluggable connector, length according to two parts cabling, this connector can be direct-connected module, also can the signal condition chip, efficiently solve the problem of signal attenuation of high speed signal long-distance transmissions, make the backboard smooth upgrade simultaneously, and reduced client's cost.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a backboard comprises by cabling interconnected each other professional groove and hard core control groove, it is characterized in that:
Described cabling is divided into first that connects professional groove and the second portion that is connected the hard core control groove;
Described first and second portion are connected to each other by pluggable connector.
2. backboard according to claim 1 is characterized in that:
If the length sum L2 of described first and second portion is greater than first preset value, described connector is to possess the signal condition chip that receives compensation ability and send compensation ability.
3. backboard according to claim 2 is characterized in that:
The ratio of described first and the length of second portion and the reception compensation ability of described signal condition chip and sending between the ratio of compensation ability is directly proportional.
4. backboard according to claim 3 is characterized in that:
The reception compensation ability of described signal condition chip is E1, and the transmission compensation ability is E2;
The length of described first is: L2*E1/ (E1+E2);
The length of described second portion is: L2*E2/ (E1+E2).
5. backboard according to claim 1 is characterized in that:
If the length sum L2 of described first and second portion is smaller or equal to first preset value, described connector is direct-connected module.
6. backboard according to claim 5 is characterized in that:
The equal in length of described first and described second portion.
7. according to each described backboard of claim 2 to 6, it is characterized in that:
Described first preset value is 127mm.
8. backboard according to claim 1 is characterized in that:
Comprise reception/transmission terminal by in described professional groove and the business module that described backboard is connected;
Track lengths between described reception/transmission terminal and the described professional groove is smaller or equal to second preset value.
9. backboard according to claim 8 is characterized in that:
Comprise reception/transmission terminal by in described hard core control groove and the hard core control module that described backboard is connected;
Cabling between described reception/transmission terminal and the described hard core control groove is smaller or equal to the 3rd preset value.
10. backboard according to claim 9 is characterized in that:
Described second preset value is 152.4mm; And/or,
Described the 3rd preset value is 152.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106014762A CN102082974A (en) | 2010-12-22 | 2010-12-22 | Backing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106014762A CN102082974A (en) | 2010-12-22 | 2010-12-22 | Backing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102082974A true CN102082974A (en) | 2011-06-01 |
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ID=44088699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106014762A Pending CN102082974A (en) | 2010-12-22 | 2010-12-22 | Backing plate |
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| Country | Link |
|---|---|
| CN (1) | CN102082974A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012171448A1 (en) * | 2011-06-14 | 2012-12-20 | 浙江红苹果电子有限公司 | Method for unlimitedly cascading backplane signals among chassis and device therefor |
| CN107241160A (en) * | 2016-03-28 | 2017-10-10 | 华为技术有限公司 | The method and apparatus for determining parameter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583879Y (en) * | 2002-11-02 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | High speed rear panel |
| CN1851773A (en) * | 2006-05-31 | 2006-10-25 | 北京领邦仪器技术有限公司 | Virtual instrument signal regulating device |
| CN101374054A (en) * | 2007-08-21 | 2009-02-25 | 华为技术有限公司 | Communication apparatus and method for processing communication service |
-
2010
- 2010-12-22 CN CN2010106014762A patent/CN102082974A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583879Y (en) * | 2002-11-02 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | High speed rear panel |
| CN1851773A (en) * | 2006-05-31 | 2006-10-25 | 北京领邦仪器技术有限公司 | Virtual instrument signal regulating device |
| CN101374054A (en) * | 2007-08-21 | 2009-02-25 | 华为技术有限公司 | Communication apparatus and method for processing communication service |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012171448A1 (en) * | 2011-06-14 | 2012-12-20 | 浙江红苹果电子有限公司 | Method for unlimitedly cascading backplane signals among chassis and device therefor |
| CN107241160A (en) * | 2016-03-28 | 2017-10-10 | 华为技术有限公司 | The method and apparatus for determining parameter |
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Application publication date: 20110601 |