CN207022033U - A kind of orthogonal exchange system based on OpenVPX standards - Google Patents

A kind of orthogonal exchange system based on OpenVPX standards Download PDF

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Publication number
CN207022033U
CN207022033U CN201720735171.8U CN201720735171U CN207022033U CN 207022033 U CN207022033 U CN 207022033U CN 201720735171 U CN201720735171 U CN 201720735171U CN 207022033 U CN207022033 U CN 207022033U
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connector
load
exchange
groove position
backboard
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高加林
李兴明
贲蓉蓉
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BEIJING POLYTECHNIC LEIKE ELECTRONIC INFORMATION TECHNOLOGY Co Ltd
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BEIJING POLYTECHNIC LEIKE ELECTRONIC INFORMATION TECHNOLOGY Co Ltd
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Abstract

The utility model provides a kind of orthogonal exchange system based on OpenVPX standards, load blocks and Switching Module is changed into spatially orthogonal by spatially parallel, so as to the two-sided orthohormbic structure of whole exchange system formation spatially;The utility model can ensure that existing standard termination module is without any changes or minor modifications on the premise of, effectively more high speed, the more highdensity data exchange capability of exchange system of the support based on OpenVPX standards, so that connector distance corresponding to exchanging connector corresponding to groove position and load groove position reduces, effectively shorten track lengths of the backboard two-by-two between groove, so as to reduce transmission link loss;Meanwhile the utility model can also implement regional backboard and walk line traffic control, reduce and intersect and overlapping, effectively reduce crosstalk effect, reduce PCB layout difficulty, and reduce the requirement to sheet material and processing technology, so as to reduce manpower and making sheet cost.

Description

A kind of orthogonal exchange system based on OpenVPX standards
Technical field
The utility model belongs to technical field of information processing, more particularly to a kind of orthogonal exchange based on OpenVPX standards System.
Background technology
New System high performance information processing system requires that system has digitlization, software implementation, high amount of traffic, big bandwidth, sea The features such as amount stores, high speed is real-time, and the shock resistance to system, thermal diffusivity, reliability etc. propose the requirement of harshness.Traditional Information processing system realizes special information processing system for the customization of specific application demand, although its efficiency high, real-time It is good, but have the limitations such as very flexible, technology reusability is low, cost is high, lead time length.At present, standardization, modularization, can Extension, restructural have turned into the development trend of generation information processing system, under the promotion of these trend, OpenVPX (Vita65) as high-performance of new generation, high reliability processing platform standard, it is contour to be widely used in Aeronautics and Astronautics, military project Reliably, the information processing system in high-performance field.At present, Curtiss-Wright, Mercury Computer Systems etc. The service provider of industry main flow is transferred to research and design focal point on OpenVPX frameworks, is proposed is based on one after another All kinds of standard modules of OpenVPX standards and corresponding data exchange system.
In the exchange system typically based on OpenVPX standards, the load blocks and Switching Module of standard are and backboard Perpendicular quadrature spatially is presented, and both are in the homonymy of backboard, and is rendered as spatially parallel;Backboard carries each module Distributed electrical source network and the mechanical structure for reinforcing module, and provide intermodule extension layer, data Layer, key-course, management level, should With multi-level interference networks such as layer, User Defined layers, as shown in Figure 1.In these interference networks, at a high speed, efficient, big band Wide data transfer is all based on exchanged form progress, such as Serial RapidIO (SRIO), PCIe, the mbit ethernet of gigabit/ten thousand Deng, i.e. system needs Switching Module or exchange chip to provide and exchange route, so that SRIO is exchanged as an example, its interconnection topology such as Fig. 2 It is shown.However, with further lifting of the high performance information processing system to disposal ability and transmittability demand, the groove of system Position is more and more so that the length of interconnection is increasingly longer, and interconnection density is increasing, as shown in Figure 3.VPX cores exchange can be with 32 pairs of differential pairs are provided, each pair differential pair can provide 10Gbps data exchange capability in theory, with signal transmission rate More and more higher so that the non-ideal effects of transmission line highlight, and this causes exchanging system design to be faced with formidable challenges.First, hold To end transmission link loss with signal rate, track lengths increase and increase so that signal amplitude significantly decays;Its Secondary, at a high speed, high density interconnects so that the crosstalk between cabling and cabling, cabling and via, via and via becomes serious, so as to dislike Change signal quality;Finally, highdensity interconnection will certainly aggravate PCB wiring difficulty, and increase the PCB number of plies and special process Use (such as back drill, blind hole, buried via hole), so as to increase manpower and making sheet cost.
Fig. 3 is a certain signals layer interconnection of the SRIO exchange systems based on the groove position of OpenVPX standard 6U sizes 8 of prior art Design diagram (eliminates other signal wires) in figure, 7 load groove positions are included in figure and 1 exchanges groove position, respectively load groove The SRIO passages of position and exchange groove position interconnect one by one.It can be seen that the groove position of system is more, the transmittability of data is got over By force, but the length of interconnection signal line can be caused increasingly to grow, interconnection density is increasing.When signal transmission rate more and more higher, The non-ideal effects of transmission line highlight, and this causes the design of exchange system to be faced with formidable challenges.
The content of the invention
To solve the above problems, the utility model provides a kind of orthogonal exchange system based on OpenVPX standards, make load Module and Switching Module are changed into spatially orthogonal by spatially parallel, so as to which whole exchange system forms spatially double Face orthohormbic structure.
A kind of orthogonal exchange system based on OpenVPX standards, including load blocks group, Switching Module and backboard;
The load blocks group includes at least 2 pieces of load blocks being parallel to each other;
The one side of the backboard is provided with loads groove position, and each load correspondingly with each piece of load blocks position Groove position is provided with the coad connector that is connected with load blocks, and wherein coad connector includes public load connector and self-defined Coad connector;
The position of any one self-defined coad connector in the load groove position at same position is set to exchange groove The position of position, while the exchange groove position is arranged at the another side of backboard, and the exchange groove position and load groove position are mutually orthogonal; Wherein, exchange to be provided only with the position of groove position and exchange connector with what Switching Module was connected.
Further, the orthogonal exchange system uses the backboard of Europe card 6U sizes, and includes 7 load groove positions on backboard Groove position is exchanged with 7;
Be equipped with each load groove position 1 public load connector P0 and 5 self-defined coad connector P1, P2, P3, P5, P6, the self-defined coad connector P4 positions in its Central Plains are defined as exchanging groove position position;Any one exchanges groove Public exchange connector T0 is set on position, and residue exchanges groove position and sets 6 self-defined exchange connector T1~T6 respectively.
Further, the orthogonal exchange system uses the backboard of Europe card 3U sizes, and includes 7 load groove positions on backboard Groove position is exchanged with 7;
1 public load connector P0 and 1 self-defined coad connector P1, its Central Plains are equipped with each load groove position Self-defined coad connector P2 positions are defined as exchanging groove position position;Set on any one exchange groove position public Connector T0 is exchanged, residue exchanges groove position and sets 6 self-defined exchange connector T1~T6 respectively.
Further, it is characterised in that the coad connector is the connection based on OpenVPX standards with exchange connector Device.
Beneficial effect:
The utility model can ensure that existing standard termination module is without any changes or minor modifications on the premise of, have More high speed, the more highdensity data exchange capability of exchange system of the effect support based on OpenVPX standards, are embodied in:
1) connector distance corresponding to exchanging connector corresponding to groove position and load groove position reduces, and effectively shortens backboard two-by-two Track lengths between groove, so as to reduce transmission link loss;
2) regional backboard can be implemented and walk line traffic control, reduce and intersect and overlapping, effectively reduce crosstalk effect;
3) reduce PCB layout difficulty, and reduce requirement to sheet material and processing technology, so as to reduce manpower and making sheet into This.
Brief description of the drawings
Fig. 1 is the exchange system structural representation based on OpenVPX standards of prior art;
Fig. 2 is the exchange system interconnection topology schematic diagram based on OpenVPX standards of prior art;
Fig. 3 is a certain signals layer PCB trace interconnection design of the SRIO exchange systems based on OpenVPX standards of prior art Schematic diagram;
Fig. 4 is the implementation schematic diagram of orthogonal exchange system provided by the utility model;
Fig. 5 is the PCB trace interconnection design schematic diagram (VPX for the orthogonal exchange system that the utility model embodiment one provides Standard uses Europe card 6U sizes in structure);
Fig. 6 is the PCB trace interconnection design schematic diagram (VPX for the orthogonal exchange system that the utility model embodiment two provides Standard uses Europe card 3U sizes in structure).
Embodiment
Developed simultaneously embodiment with reference to VPX normal structures, the utility model is described in detail.VPX standards are in structure It is upper to use Europe card 3U and 6U size.1 RT2 connectors P0 and 6 RT2 connectors P1~P6 is defined on 6U VPX boards.3U VPX boards only have tri- connectors of P0 to P2 in 6U VPX boards.Wherein, P0 is common connector, there is provided maintenance management is total Line, test bus and power supply signal;P1~P6 is User Defined, can both be defined as differential signal, can also be defined as list End signal.
Tradition is exchanged system by backboard, load blocks, the connector of Switching Module using conventional OpenVPX connectors The exchange groove of system backboard upper surface is placed in the lower surface of backboard, and with the load groove position orthogonal vertical of backboard upper surface, its is specific Design constraint is as follows:
1) exchange in groove bit occupancy OpenVPX standard criterions corresponding to the User Defined layer connector of each load groove position Backboard lower surface area;
2) the connector design direction and original subscriber's custom layers connector direction orthogonal vertical on groove position are exchanged;
3) quantity for exchanging the connector on groove position depends on the complexity of exchange system.
As shown in figure 4, backboard, load blocks, Switching Module are using conventional standard OpenVPX connectors.A represents to change The coad connector entered on the load groove position removed postnotum upper surface (load blocks face), physical location is by user according to reality Using decision;B represents to improve postnotum lower surface (Switching Module face) increased exchange connector exchanged on groove position, actual bit It is set to backboard upper surface and removes lower surface area corresponding to coad connector, its view field is the dotted line plane represented by C, and Connector direction and backboard upper surface coad connector direction perpendicular quadrature are exchanged, its quantity depends on the complexity of exchange system Degree.
The utility model can ensure that existing standard termination module is without any changes or minor modifications on the premise of, have More high speed, the more highdensity data exchange capability of exchange system of the effect support based on OpenVPX standards.
Embodiment one
The utility model embodiment one provides the orthogonal exchange system that VPX standards use Europe card 6U sizes in structure, So that load blocks and Switching Module are changed into spatially orthogonal by spatially parallel, whole exchange system is formed spatially Two-sided orthohormbic structure.
As shown in figure 5, the plan for backboard SRIO signal wires place layer.7 groups of load groove positions and 1 are included in the embodiment Group exchanges groove position.All load groove hytes are placed in the front position of backboard by fixed position, and each groove hyte that loads includes 1 RT2 connectors P0 and 5 RT2 connectors P1, P2, P3, P5, P6.P4 connectors position in VPX normal structures is defined Groove position position is exchanged for the utility model exchange system.Exchange the back side that groove position is placed in backboard, its putting position and negative Load groove position position is orthogonal, and is placed in the back side of load groove position P4 connector correspondence positions, exchanges groove hyte and includes 1 RT2 company Meet device T0 and 6 RT2 connectors T1~T6;Wherein, T0 is common connector, there is provided maintenance management bus, test bus and Power supply signal;T1~T6 is User Defined, can both be defined as differential signal, can also be defined as single-ended signal;In Fig. 5 Line represents that the switching layer of each load groove position is connected one by one with groove position is exchanged.
Compared with prior art in Fig. 3, which can not do any change to existing load blocks and Switching Module On the premise of dynamic or minor modifications so that connector distance corresponding to exchanging connector corresponding to groove position and load groove position subtracts It is small, effectively shorten track lengths of the backboard two-by-two between groove, when speed reaches the maximum rate 10Gbps that VPX can be transmitted, energy Effectively reduce the Insertion Loss of transmission link;Regional backboard can be implemented and walk line traffic control, reduce and intersect and overlapping, effective reduction crosstalk effect Should;PCB layout difficulty is reduced, and reduces the requirement to sheet material and processing technology, so as to reduce manpower and making sheet cost.
Embodiment two
The utility model embodiment two provides the orthogonal exchange system that VPX standards use Europe card 3U sizes in structure, So that load blocks and Switching Module are changed into spatially orthogonal by spatially parallel, whole exchange system is formed spatially Two-sided orthohormbic structure.
As shown in fig. 6, the figure shows the plan of layer where backboard SRIO signal wires.7 groups of load grooves are included in the example Position and 1 group of exchange groove position.All load groove hytes are placed in the front position of backboard by fixed position, each to load groove hyte bag Containing 1 RT2 connectors P0 and 1 RT2 connectors P1.P2 connectors position in VPX normal structures is defined as this reality Groove position position is exchanged with new exchange system.Exchange the back side that groove position is placed in backboard, its putting position and load groove position Position is orthogonal, and is placed in the back side of load groove position P2 connector correspondence positions, exchanges groove position and includes 1 RT2 connectors T0 and 6 Individual RT2 connectors T1~T6;Wherein, T0 is common connector, there is provided maintenance management bus, test bus and power supply signal; T1~T6 is User Defined, can both be defined as differential signal, can also be defined as single-ended signal;Line in Fig. 6 represents The switching layer of each load groove position is connected one by one with groove position is exchanged.
Compared to the design of prior art, this embodiment increases the quantity for exchanging groove position, and by high speed transmission of signals The length of line is controlled in minimum.The design method can improve the transmission energy of data while signal exchange ability is improved Power.
To sum up, the utility model can be without any changes or small change to existing load blocks and Switching Module Back board structure is optimized on the premise of dynamic, reduces the Insertion Loss and crosstalk effect of signal, and reduce the requirement to backboard sheet material And PCB layout difficulty, save human cost and making sheet cost.
Certainly, the utility model can also have other various embodiments, without departing substantially from the utility model spirit and its essence In the case of, those skilled in the art work as can make various corresponding changes and deformation according to the utility model, but these Corresponding change and deformation should all belong to the scope of the claims appended by the utility model.

Claims (4)

  1. A kind of 1. orthogonal exchange system based on OpenVPX standards, it is characterised in that including load blocks group, Switching Module with And backboard;
    The load blocks group includes at least 2 pieces of load blocks being parallel to each other;
    The one side of the backboard is provided with loads groove position, and each load groove position correspondingly with each piece of load blocks position The coad connector being connected with load blocks is provided with, wherein coad connector includes public load connector and self-defined load Connector;
    The position of any one self-defined coad connector in the load groove position at same position is set to exchange groove position Position, while the exchange groove position is arranged at the another side of backboard, and the exchange groove position and load groove position are mutually orthogonal;Its In, it is provided only with the position of exchange groove position and exchanges connector with what Switching Module was connected.
  2. 2. a kind of orthogonal exchange system based on OpenVPX standards as claimed in claim 1, it is characterised in that described orthogonal Exchange system uses the backboard of Europe card 6U sizes, and includes 7 load groove positions and 7 exchange groove positions on backboard;
    Be equipped with each load groove position 1 public load connector P0 and 5 self-defined coad connector P1, P2, P3, P5, P6, the self-defined coad connector P4 positions in its Central Plains are defined as exchanging groove position position;Any one exchanges groove position Upper to set public exchange connector T0, residue exchanges groove position and sets 6 self-defined exchange connector T1~T6 respectively.
  3. 3. a kind of orthogonal exchange system based on OpenVPX standards as claimed in claim 1, it is characterised in that described orthogonal Exchange system uses the backboard of Europe card 3U sizes, and includes 7 load groove positions and 7 exchange groove positions on backboard;
    1 public load connector P0 and 1 self-defined coad connector P1 are equipped with each load groove position, its Central Plains is made by oneself Adopted coad connector P2 positions are defined as exchanging groove position position;Any one exchanges and sets public exchange on groove position Connector T0, residue exchange groove position and set 6 self-defined exchange connector T1~T6 respectively.
  4. 4. a kind of orthogonal exchange system based on OpenVPX standards as described in claim 1-3 any claims, its feature It is, the coad connector and exchange connector are the connector based on OpenVPX standards.
CN201720735171.8U 2017-06-22 2017-06-22 A kind of orthogonal exchange system based on OpenVPX standards Active CN207022033U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109347767A (en) * 2018-09-13 2019-02-15 恒为科技(上海)股份有限公司 A kind of telecommunications computing hardware framework based on orthogonal connection type
CN112764399A (en) * 2020-12-28 2021-05-07 浙江中控技术股份有限公司 Ethernet backboard and communication device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109347767A (en) * 2018-09-13 2019-02-15 恒为科技(上海)股份有限公司 A kind of telecommunications computing hardware framework based on orthogonal connection type
CN112764399A (en) * 2020-12-28 2021-05-07 浙江中控技术股份有限公司 Ethernet backboard and communication device

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