CN108134750B - Backboard and communication equipment - Google Patents
Backboard and communication equipment Download PDFInfo
- Publication number
- CN108134750B CN108134750B CN201711441779.0A CN201711441779A CN108134750B CN 108134750 B CN108134750 B CN 108134750B CN 201711441779 A CN201711441779 A CN 201711441779A CN 108134750 B CN108134750 B CN 108134750B
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- Prior art keywords
- card
- switch
- connector
- service
- connectors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/10—Packet switching elements characterised by the switching fabric construction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
Abstract
The embodiment of the invention provides a backboard and communication equipment, relates to the field of electronic equipment, and aims to reduce or even avoid the phenomenon that the number of wiring layers of the backboard is greatly increased, so that the cost of the backboard is reduced. The back plate includes: at least two switch card connection areas, the at least two switch card connection areas being laterally distributed; each switch card connecting area comprises at least one switch card connector, the switch card connectors in the same switch card connecting area are distributed transversely, and the switch card connectors in the switch card connecting areas are used for connecting switch cards; the back plate also comprises a service card connector, the service card connector is used for connecting a service card, and the exchange card connector is connected with the service card connector through wiring on the back plate.
Description
Technical Field
The embodiment of the invention relates to the field of electronic equipment, in particular to a backboard and communication equipment.
Background
In the field of data communications, particularly rack-mounted communications devices, the switching bandwidth of a switch card is a key core of device performance. In general, a data channel of a switch card is connected to each service card slot position through a backplane to provide a data channel between cards for service cards, thereby realizing interconnection of data between the service cards. Because the size space of a slot is limited, in order to realize high bandwidth and reliable backup of a data channel, two or more exchange card slots are often designed on the equipment. Therefore, when a plurality of exchange cards are configured on a plurality of exchange card slots, a higher-bandwidth data channel between the cards, even a backup data channel, can be provided for the service card.
With the rapid growth of network traffic, higher requirements are put on device bandwidth. In order to meet the rapid increase of the exchange bandwidth, the exchange card is also continuously updated, the exchange bandwidth is wider, and the speed of the data channel is higher. At present, data ports of a chip of a high-end switch card can support 40Gbps or even 100Gbps bandwidth, each port respectively comprises a receiving bus and a transmitting bus which are composed of 4 pairs of differential data lines, and the speed of each pair of differential data lines respectively reaches 10Gbps/25 Gbps. To carry such high speed signals, high speed board is often required for the backplane to minimize signal attenuation. Generally, the better the printed board material, the higher the cost, and the more layers, the higher the cost. Therefore, high speed switching devices require systematic design of the intercard data channels, and backplane complexity and cost are design concerns.
With the increase of the configuration number of the switch cards, higher bandwidth is provided for equipment, but the number of data buses is greatly increased, and the difficulty of backplane design is increased. How to reduce or even avoid the number of wiring layers of the back plate to be greatly increased so as to reduce the cost of the back plate is an important problem for improving the competitiveness of products.
Disclosure of Invention
The embodiment of the invention provides a backboard and communication equipment, which can reduce or even avoid the phenomenon that the number of wiring layers of the backboard is greatly increased, so that the cost of the backboard is reduced.
In a first aspect, there is provided a backing plate comprising: at least two switch card connection areas, the at least two switch card connection areas being laterally distributed;
each exchange card connecting area comprises at least one exchange card connector, the exchange card connectors in the same exchange card connecting area are distributed transversely, and the exchange card connectors in the exchange card connecting area are used for connecting exchange cards;
the back plate also comprises a service card connector, the service card connector is used for connecting a service card, and the exchange card connector is connected with the service card connector through wiring on the back plate.
In a second aspect, a communication device comprises a backplane as described in the first aspect.
In the above aspect, the back plate includes: at least two exchange card connection areas which are distributed transversely; each exchange card connecting area comprises at least one exchange card connector, the exchange card connectors in the same exchange card connecting area are distributed transversely, and the exchange card connectors in the exchange card connecting area are used for connecting exchange cards; the back plate also comprises a service card connector, the service card connector is used for connecting a service card, and the exchange card connector is connected with the service card connector through wiring on the back plate; because the switch card connecting areas are transversely distributed and the switch card connectors of the same switch card connecting area are also transversely distributed, the phenomenon that the switch card connecting areas are overlapped in the longitudinal direction is avoided, therefore, when the wiring between the service card connector and the switch card connector is designed, the wiring connected with different switch card connecting areas can be arranged on the same layer, the number of wiring layers of the back plate can be reduced or even avoided being greatly increased, and the cost of the back plate is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of a back plate according to an embodiment of the present invention;
fig. 2 is a structural diagram of a back plate according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a back plate 10, including: at least two exchange card connection areas 11(11-1, 11-2), the at least two exchange card connection areas 11 being distributed laterally;
each switch card connection area 11 comprises at least one switch card connector 111, the switch card connectors 111 in the same switch card connection area 11 are distributed transversely, and the switch card connectors 111 in the switch card connection area 11 are used for connecting switch cards;
also included on backplane 10 are service card connectors 12(12-1, 12-2 … … 12-n), service card connectors 12 for connecting service cards, and switch card connector 111 is connected to service card connectors 12 by wiring on backplane 10.
As shown in fig. 1, the switching network 1 includes a switching card connection area 11-1, switching cards connected to the switching card connection area 11-1 and the switching card connector 111 of the switching card connection area 11-1, service card connectors 12-1 to 12-8 connected to the switching card connector 111 of the switching card connection area 11-1, and service cards connected to the service card connectors 12-1 to 12-8; the switching network 2 includes a switch card connection area 11-2, a switch card connected to the switch card connector 112 of the switch card connection area 11-2, service card connectors 12-9-12-16 connected to the switch card connector 112 of the switch card connection area 11-2, and service cards connected to the service card connectors 12-9-12-16. As shown in fig. 1 or 2, the switch card connector 111 includes a first connection unit a and a second connection unit b distributed longitudinally; the first connection unit a and the upper half of the second connection unit b of the switch card connector 111 are connected with the connectors of the first service card connection area; the lower half portions of the first connection unit a and the second connection unit b of the switch card connector 111 are connected to the connector of the second service card connection area.
In the above scheme, the backplane comprises at least two switch card connection areas, and the at least two switch card connection areas are distributed laterally; each exchange card connecting area comprises at least one exchange card connector, the exchange card connectors in the same exchange card connecting area are distributed transversely, and the exchange card connectors in the exchange card connecting area are used for connecting exchange cards; the back plate also comprises a service card connector, the service card connector is used for connecting a service card, and the exchange card connector is connected with the service card connector through wiring on the back plate; because the switch card connecting areas are transversely distributed and the switch card connectors of the same switch card connecting area are also transversely distributed, the phenomenon that the switch card connecting areas are overlapped in the longitudinal direction is avoided, therefore, when the wiring between the service card connector and the switch card connector is designed, the wiring connected with different switch card connecting areas can be arranged on the same layer, the number of wiring layers of the back plate can be reduced or even avoided being greatly increased, and the cost of the back plate is reduced.
Referring to fig. 1, the projections of the switch card connectors 111 at the same switch card connection area 11-1 in the lateral direction overlap; the projections of the switch card connectors located in different switch card connection areas in the transverse direction do not overlap. For example, the projections of all the switch card connectors of the switch card connection area 11-1 in the lateral direction overlap, and the projections of the switch card connectors of the switch card connection area 11-2 in the lateral direction overlap; while the projection of the switch card connector of the switch card connection area 11-1 and the switch card connector of the switch card connection area 11-2 in the transverse direction do not overlap.
In addition, to satisfy the shortest high-speed wiring length, the service card connectors 12 are distributed in the longitudinal direction and are disposed on both upper and lower sides of the switch card connection region 111. In a preferred manner, the service card connectors of the first service card connection area on one side of the switch card connection area 111 are symmetrically distributed with the service card connectors of the second service card connection area on the other side. Illustratively, the routing length between a first service card connector located on one side of the switch card connection area and a predetermined switch card connector is equal to the routing length between a second service card connector located on the other side of the switch card connection area and the predetermined switch card connector, wherein the predetermined switch card connector is any switch card connector of the switch card connection area. Furthermore, the service card connectors 12 are aligned with the switch card connector positions in the longitudinal direction, i.e. the projection of the service card connector 12 in the longitudinal direction covers either switch card connector. It should be noted that the service card connector in the longitudinal projection area of any switch card connection area is connected with the switch card connector in any switch card connection area.
For example: the at least two exchange connection areas include: a first exchange card connection area 11-1 and a second exchange card connection area 11-2; the service card connector in the longitudinal projection area of the first exchange card connection area 11-1 is connected with the exchange card connector of the first exchange card connection area 11-1, and the service card connector in the longitudinal projection area of the second exchange card connection area 11-2 is connected with the exchange card connector of the second exchange card connection area 11-2. For example, the switch card connector of the switch card connection area 11-1 is connected with the service cards 12-1 to 12-8; the switch card connector of the switch card connection area 11-2 is connected with the service cards 12-9-12-16.
To implement management control of the switch cards disposed in the switch connection area, as shown in fig. 2, the backplane 10 further includes: a management connection area 13(13-1, 13-2) corresponding to each switch card connection area, wherein the management connection area 13 comprises a plurality of management connectors 131, wherein the management connectors 131 are used for connecting the managers (such as master cards), and the management connectors 131 connect the switch card connectors and the service switch cards through the wiring on the backplane, thereby realizing the data channel between the managers and the switch cards and the service cards. One example is: the management connection areas are distributed laterally, the management connectors of each management connection area are distributed laterally, and the projections of the management connectors of each management connection area in the lateral direction overlap. As shown in fig. 2, the switch card connection area 11-1 corresponds to the management connection area 13-1, and the switch card connection area 11-2 corresponds to the management connection area 13-2.
In order to realize power supply to the switch card arranged in the switch connection area and the service card connected to the service card connector, as shown in fig. 2, the method further includes: a power supply connection area 14, wherein the power supply connection area 14 includes a plurality of power connectors 141, wherein the power connectors 141 are used for connecting the power supply module 15, and the power connectors 141 are connected with the switch card connector 111 through wiring on the back panel to supply power to the switch card connected with the switch card connector 111; or the power connector 141 is connected to the service card connector 12 through wiring on the backplane to supply power to the service card connected to the service card connector 12.
In addition, referring to fig. 1 and 2, the system further includes a switching network management area 16, where the switching network management area 16 includes a service card connector management area 16-1 and a switching card connector management area 16-2, where a connector of the service card connector management area 16-1 is used to insert a service card configuration manager, and a connector of the service card connector management area 16-1 is connected to a service card connector, and is used to implement configuration of the service card configuration manager for a service card; the connector of the switch card connector management area 16-2 is used for inserting a switch card configuration manager, and the connector of the switch card connector management area 16-2 is connected with a switch card connector and used for realizing the configuration of the switch card configuration manager for the service card.
In addition, any power connector 141 of the power connection region 14 is also connected to the management connector 131 through a wiring on the backplane, and is used for supplying power to the manager connected to the management connector 131.
In addition, an embodiment of the present invention provides a communication device, including the above-mentioned backplane.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A backing sheet, comprising: at least two switch card connection areas, the at least two switch card connection areas being laterally distributed;
each switch card connecting area comprises at least one switch card connector, the switch card connectors in the same switch card connecting area are distributed transversely, and the switch card connectors in the switch card connecting areas are used for connecting switch cards;
the back plate also comprises a service card connector, the service card connector is used for connecting a service card, and the exchange card connector is connected with the service card connector through wiring on the back plate.
2. The backing sheet of claim 1,
the projections of the exchange card connectors in the same exchange card connection area in the transverse direction are overlapped; the projections of the switch card connectors located in different switch card connection areas in the transverse direction do not overlap.
3. A backplane according to claim 1, wherein said service card connectors are distributed longitudinally and are disposed on both upper and lower sides of said switch card connection area.
4. A backplane according to claim 3, characterized in that the service card connectors of a first service card connection area at one side of said switch card connection area and of a second service card connection area at the other side are symmetrically distributed.
5. A backplane according to any of claims 1-4, characterized in that the at least two exchange card connection areas comprise: a first switch card connection area and a second switch card connection area;
the service card connector in the longitudinal projection area of the first exchange card connection area is connected with the exchange card connector of the first exchange card connection area, and the service card connector in the longitudinal projection area of the second exchange card connection area is connected with the exchange card connector of the second exchange card connection area.
6. The backsheet according to claim 1, further comprising: a management connection area corresponding to each switch card connection area, wherein the management connection area includes at least one management connector.
7. The backplane of claim 6, wherein the management connection zones are laterally distributed, the management connectors of each of the management connection zones being laterally distributed.
8. The backsheet according to claim 1, further comprising: the power supply connection area comprises a plurality of power supply connectors, wherein the power supply connectors are used for connecting a power supply module, and the power supply connectors are connected with the exchange card connectors through wiring on a back plate so as to supply power to the exchange cards connected with the exchange card connectors; or the power connector is connected with the service card connector through wiring on the backboard so as to supply power to the service card connected with the service card connector.
9. A backplane according to claim 4, wherein the switch card connector comprises a first connection unit and a second connection unit distributed longitudinally; the upper half parts of the first connection unit and the second connection unit are connected with a connector of a first service card connection area; the lower half parts of the first connecting unit and the second connecting unit are connected with a connector of a second service card connecting area.
10. A communication device comprising a backplane according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441779.0A CN108134750B (en) | 2017-12-27 | 2017-12-27 | Backboard and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441779.0A CN108134750B (en) | 2017-12-27 | 2017-12-27 | Backboard and communication equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108134750A CN108134750A (en) | 2018-06-08 |
| CN108134750B true CN108134750B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711441779.0A Active CN108134750B (en) | 2017-12-27 | 2017-12-27 | Backboard and communication equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980220A (en) * | 2006-11-30 | 2007-06-13 | 杭州华为三康技术有限公司 | Intermediate back-plate in communication apparatus |
| CN101931828A (en) * | 2009-06-12 | 2010-12-29 | 华为技术有限公司 | Back plate and communication equipment |
| CN101984599A (en) * | 2010-11-01 | 2011-03-09 | 华为技术有限公司 | Backplane, communication equipment and communication systems |
| CN105281917A (en) * | 2014-07-21 | 2016-01-27 | 中兴通讯股份有限公司 | Backplane structure and centralized switching device |
| CN105376659A (en) * | 2015-09-30 | 2016-03-02 | 华为技术有限公司 | An optical back board component and a communication apparatus |
| CN205961347U (en) * | 2016-06-23 | 2017-02-15 | 中兴通讯股份有限公司 | Novel backplate, AC/DC power supply device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7850260B2 (en) * | 2007-06-22 | 2010-12-14 | Oracle America, Inc. | Injection/ejection mechanism |
-
2017
- 2017-12-27 CN CN201711441779.0A patent/CN108134750B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980220A (en) * | 2006-11-30 | 2007-06-13 | 杭州华为三康技术有限公司 | Intermediate back-plate in communication apparatus |
| CN101931828A (en) * | 2009-06-12 | 2010-12-29 | 华为技术有限公司 | Back plate and communication equipment |
| CN101984599A (en) * | 2010-11-01 | 2011-03-09 | 华为技术有限公司 | Backplane, communication equipment and communication systems |
| CN105281917A (en) * | 2014-07-21 | 2016-01-27 | 中兴通讯股份有限公司 | Backplane structure and centralized switching device |
| CN105376659A (en) * | 2015-09-30 | 2016-03-02 | 华为技术有限公司 | An optical back board component and a communication apparatus |
| CN205961347U (en) * | 2016-06-23 | 2017-02-15 | 中兴通讯股份有限公司 | Novel backplate, AC/DC power supply device |
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| Publication number | Publication date |
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| CN108134750A (en) | 2018-06-08 |
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