Backplane design considerations in software

Designing backplanes for rugged cots applications tech briefs. Ruggedized backplane design considerations when designing for environments where dust, dirt, moisture, high humidity, extreme heatcold and vibration are of concern, a plethora of techniques can be employed to ensure the backplane can withstand the operating and storage conditions. While vpx brings unprecedented levels of performance to embedded systems, it also presents entirely new design considerations and tradeoffs not found in previous architectures. Basic design considerations for backplanes texas instruments. In this paper, adopted from the recent communications design conference, a flextronics engineer an old hand at highspeed board design discusses the design tradeoffs, materials, connectors, transmission line and signal integrity effects necessary to finding. Design considerations of the backplane connector and pin field are discussed to minimize. Recently, though, there has been a move toward passive backplanes, with the active components such as the cpuinserted on an additional card. To a large extent, system requirements will define backplane design, determining if distributed. There is a general consensus that 10 gbps copper backplane serial links will be deployed in the near future. For over 30 years, sanmina has been the technology leader for the worlds most advanced backplanes. Jan 14, 2011 according to wiktionary, an architect is. Traditionally, most pcs have used active backplanes.

Backplane is vibration and shock tested according to iec 6122 and approved for zone 2 applications. Our portfolio of backplane connectors features highperformance right angle, coplanar, and mezzanine interconnects, used for mating printed circuit boards together. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Design considerations for gigabit backplane systems definition engineers continually access new technologies when making architectural decisions for their new products. Two xilinx cards plugged into the examax backplane, powered on, loaded with xilinx. Backplane micro backplane connectors and systems samtec. It offers design tips, answers many backplane questions, and updates recent developments. New production techniques are required to deal with these evolving datarate realities. Passive backplanes make it easier to repair faulty components and to upgrade to new. Fortyeight fixed unified ports on base chassis, and three modules totaling 96 ports.

In order to serve as a software backplane, in addition to having reconfigurability, a standardized interface, and location independence for the plugin modules, there are four types of data exchange services that are required. This paper takes a look at the practical and cost effective design aspects of. Quick reference guide high speed backplane interconnect. This is especially true for military systems such as radar, electronic warfare, and signals intelligence sigint that continue to grow in complexity. Important safety considerations you must consider the possible negative effects of power, wiring, component, sensor, or software failure in the design of any type of control or monitoring system.

Backplane solutions guide this guide provides an overview of key backplane criteria that will enable you to manage and reduce your program risk. Ter, connection systems division, a leading supplier of highperformance interconnect systems and rambus, a leading provider of chiptochip interface products and services, will publicly demonstrate a lowrisk, 10 gbps solution over a single. At the show, the company displayed their highspeed backplane and io systems, storage and server, mezzanine, and. Backplane design considerations for high speed spacewire networks session. Our expertise from specialization in backplane design to mechanical precision, to detailed knowledge of embedded systems gives us unique perspective to offer creative solutions. Design considerations of the backplane connector and pin field are discussed to minimize the connectors impact and to meet the channels signal integrity requirement. Standard lownoise industrial and milgrade backplanes are used. The result is a superb design solution, completed to your specifications in a timely and costefficient. The sooner you consider the backplanes physical architecture near the beginning of a project, the more successful the project will be. Software backplane article about software backplane by the.

Electrical behavior signal integrity and performance, power and ground currents. Basic design considerations for backplanes 3 introduction since the beginning, most equipment makers have used parallel backplane architectures to deliver large amounts of data across one shared bus. Each connector can be used to carry different kinds of signals like rs232 or i2c serial interfaces, rf transmissions, audio and video signals, power, or highspeed data communications. Section 4 backplane design considerations backplane. When designing a 40 gbpscapable backplane, the layer stackup and trace geometry choices must strike a balance among. Section 4 backplane design considerationsbackplane. To a large extent, system requirements will define backplane design, determining if distributed capacitance effects will be present on the.

Molex s expertise in highspeed solutions offers our customers a full range of backplane and midplane assembly solutions from. Despite their similarities, the differences are significant requiring intricate design considerations and compensation techniques to achieve good display uniformity and lifetime while eliminating second order effects associated with ir drop, ground bouncing, and parasitic capacitance. Proper signal organization on the backplane makes it much easier to achieve high performance. A person who plans, devises or contrives the achievement of a desired result. If backplane connectors have design shortcomings its in dealing signal quality. This topic describes how to design for, measure, and improve performance in a signalr application. Study 45 terms networking chapter 6 flashcards quizlet. Introduction this is the third paper in a series that describes a futuristic design for a 3d display device. The result is a superb design solution, completed to your specifications in a timely and costefficient manner. When a signal enters a system from an external server, it first travels through traces on a daughter card, then into the backplane connector. Highspeed digital standards are quickly evolving to keep pace with emerging technologies such as 5g, internet of things iot, artificial intelligence ai, virtual reality vr, and autonomous vehicles.

Basic design considerations for backplanes szza016 fast gtl backplanes with the gtl1655 scba015 gtlbtl. A major consideration for cpl6 software design is that it will be built upon the infrastructure provided by mct and mph. It is used as a backbone to connect several printed circuit boards together to make up a complete computer system. The design of a backplane computer is actually pretty simple. Design differs from art in that it considers factors such as strategy, customers, markets, technology, laws, standards and competition. Electrical design dielectric materials, dielectric thickness, trace geometry. One of the prime considerations is to determine the type of communication or use of the application. While several cable based design considerations still apply, there are other design considerations that are unique to this application but not addressed in the spacewire standard. Backplane architecture and design bert simonovichs design notes.

Modeling and design considerations for 10 gbps connectors. For over 35 years, our team of experts have demonstrated expertise in creating sophisticated solutions for the most demanding applications. We can utilize our vast resource of experienced designers and engineers from facilities all over the world. Missions and applications chris dailey shahana aziz pagen mei tech inc. Highspeed digital standards are quickly evolving to keep pace with emerging technologies such as 5g, internet of things iot, artificial intelligence ai. Basic design considerations for backplanes 3 introduction since the beginning, most equipment makers have used parallelbackplane architectures to deliver large amounts of data across one shared bus. A backplane or backplane system is a group of electrical connectors in parallel with each other, so that each pin of each connector is linked to the same relative pin of all the other connectors, forming a computer bus. To assure high performance and good signal integrity, many issues must be considered during the design process. Topics relevant to backplane configuration, including parallel versus serial configuration and different configuration topologies and timing architectures 4 backplane design considerations issues relevant to backplane layout, including distributed capacitance, transmission line effect, stub length, termination, and throughput. This document describes the design considerations necessary for a host system to implement boundary scan diagnostics bsd. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.

Design considerations for gigabit backplane systems. Backplanes must adhere to certain standards to ensure proper design and function. Each solution is designed for high performance, increased density and optimal data rates. Backplane considerations for an rgb 3d display device by daniel browning, 7. Section 3 backplane architecturebackplane designers guide. These demos have appeared at the past two intel developer forum events and at the 20152016 ocp summits, and are in use at multiple intel customer sites. The first paper introduced the subject and looked at invisibility technology. Backplanesinterconnects get lvds the company has added rs644 lowvoltage differential signaling lvds technology to its line of backplane and. Cadence frontend pcb design and analysis tools help you focus on. Pixus technologies services include customization, creative design, thermal simulation, signal integrity simulationtest, and more.

Designing backplanes for rugged cots applications tech. Aug 21, 2018 electrical interfaces and connectors today face signal integrity challenges which werent a real concern 10 to 15 years ago. In this paper, adopted from the recent communications design conference, a flextronics engineer an old hand at highspeed board design discusses the design tradeoffs, materials, connectors, transmission line and signal integrity effects. Signal integrity and simulation considerations in backplane. Dod to acquire avionics systems that use boundary scan. Te connectivity high speed backplane connectors signal integrity at te te connectivity gets the best performance out of connectors by applying systemlevel signal integrity design expertise to each highspeed product. To attain these oftenconflicting goals, it is necessary to maximize the performance of every aspect of the design, including the backplane configuration. Reference platform enables higher data rate performance with low risk for legacy backplane systems. If it has connectors for a shelf manager plugin, it has. Unlike other circuit pack designs used in the system, the backplane is. Designing things so that they can be accessed by people with disabilities. It is intended to be used by system engineers, project engineers, architects, design engineers, and engineering managers. Structural and thermal integrity are critical design considerations for packagespcbs that affect reliability and product lifecycle. Our modeling and simulation skills are second to none with global expertise in the u.

Three modules include unified ports, 1248 native fibre channel, and ethernetfcoe. To a large extent, system requirements will define backplane design, determining if distributed capacitance effects will be present on the backplane. Others include onboard terminators that minimize reflections and interference on the bus. Section 4 backplane design considerationsbackplane designer. Section 3 backplane architecture backplane designers guide the primary criteria for backplane design are low cost, high speed, and high reliability. Section 4 backplane design considerations backplane designers guide this section focuses on designing highperformance parallel backplanes, a task that can be extremely complex.

The parallel backplane provides a physical and electrical interconnect between various modules in a system. To install signalr performance counters, run signalr. Designing a highperformance backplane is extremely complex, because issues such as distributed capacitance, stub lengths, noise margin, rise time slew rate. Vivado opera4ng system software and upon command, error free data. Elma has been a leader in design innovation for over 50 years. The coupler falls in the coupler application layer shown in figure 2.

The backplane is the key component in any system architecture. Challenges of 40 gbps advancedtca backplanes picmg systems. I have been doing highspeedboard designs for several years and now am working on a backplane design for the telecomm business. The two major backplane technologies for amoled displays are ltps and oxides.

Its a much more modular approach than building an entire computer on a single pcb. One major goal of the asi specification is to enable a globally flat address for star and mesh topologies. We use advanced design software and equipment to perfect your design. Backplanesinterconnects get lvds electronic design. This documentation isnt for the latest version of signalr. Hartmann electronic is the expert in backplane technology. Cots components such as backplanes can be and are being used. Please leave feedback on how you liked this tutorial and what we could.

The coupler is built upon mct, which is in turn built upon other lowerlevel libraries. Intel technology and provide a software development vehicle for intel rack scale architecture. The positioning will allow the implementation of intelligent routing, which help the design engineer to minimize the backplane layer count. Leading telecommunications and network equipment companies depend on sanmina to incorporate the latest innovations in connectors, design, materials and process technology into high performance backplanes. Section 1, 5v logic design, includes discussions on the abt advanced bicmos technology and ahc advanced highspeed cmos logic families. Te engineers use sophisticated 3d tools to develop accurate connector and footprint through pattern performance prior to production. Some backplanes include a connector for a keyboard. Backplane standards 120 of 141 results 20 results per page 10 results per page.

These types of design considerations extensive studies have been performed on gen3. This is very important where property loss or human life is. These benefits are highlighted by the bustronic elma trenew dual star advancedtca backplane figure 2 where the hub slots are placed in the middle of the backplane. Services custom backplane design, custom chassis design.

The focus here will be on architectural design and layout considerations. Although a few industrial backplane architectures are already geared for rugged milaero applications, some design considerations are often required when designing rugged cots products. Design considerations for a cost optimized 28g nrz. A new generation of highspeed protocols are here, with the next generations already on the horizon. Backplane architecture and design bert simonovichs design. As an active member of both picmg and vita, our backplanes meet andor exceed all relevant specifications. The majority of milaero applications have special design considerations due to environmental issues dust, dirt, moisture, temperature, etc. Standard and custom backplanes backplanes compact pci. Ex barriers, isolators and converters and backplane gives you a variety of mounting options. This section focuses on designing highperformance parallel backplanes, a task that can be extremely complex. Rambus and teradyne to demonstrate 10 gbps backplane solution.

Introduction to design of industrial ventilation systems. The bus type determines whether the backplane contains slots for isa, pci, cpci, pxi, vme, vxi, or mxi slots. May 25, 2000 i have been doing highspeedboard designs for several years and now am working on a backplane design for the telecomm business. Backplane architecture and design bert simonovichs. Which is more important for a performancefocused vsan cluster. This is a common question, and while the answer is that both are important, it takes some elaboration to understand how the impact on the environment may be different. With this modularity comes a whole lot of planning, though. Molex offers a variety of backplanemidplane solutions to meet the demand for increased network bandwidth and advanced technology. Simulation software for highspeed electronics design was the focus of ansys at the show.

For traditional, virtualized, unified, and highperformance computing hpc environments, it offers a long list of it and. Nextgeneration data rates are placing higher demands on backplane design, assembly, and test. Backplane considerations for an rgb 3d display device. As part of the network foundation of unified fabric, the cisco nexus 5596up switch delivers innovative architectural flexibility, infrastructure simplicity, and business agility, with support for networking standards. Electrical interfaces and connectors today face signal integrity challenges which werent a real concern 10 to 15 years ago. Indeed, the terms motherboard and backplane have been synonymous. This article discusses the design of a 14slot dual star advanced tca backplane. Nextgeneration backplane production technology picmg. For any new backplane design, i always recommend starting with a high level design hld. Despite some controversy around the acronym, cots stands for commercialofftheshelf.

The power source to our equipment provides 48v and 48v return, which must be bused to all the line cards that plug into the backplane. Because the backplane is the key component in any system architecture, the sooner you consider the backplanes physical architecture near the beginning of a project, the more successful the project will be. Paul guyer is a registered civil engineer, mechanical engineer, fire protection engineer, and architect with over 35 years experience in the design of buildings and. Determining which discrete hardware or software component is the most important, or a potential bottleneck is difficult to answer because all of the variables have an indelible tie to one another. The consumer demand for more system bandwidth is common, as is. A new generation of backplanes is emerging that achieve 5 to 10 gbitss signal speeds, and even higher speeds are on the horizon. For information about earlier versions of signalr, see signalr older versions. All i need to do is build all the parts of my computer on cards, plug them into the backplane, and hope everything works. Four major design considerations in selecting a harsh. This can leave designers unsure of how to implement the protocol to achieve desired performance as well as meet adequate design margins.