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# Sensor Open Systems

# ArchitectureTM (SOSA)

# Technical Overview and Product Guide

# SOSA TECHNICAL REFERENCE STANDARD

The Sensor Open Systems Architecture™, more commonly referred to as the SOSA™ Technical Reference Architecture, leverages and brings together multiple open standards to define and apply a common modular and interoperable approach to systems used in both defense and rugged commercial applications. At the core of SOSA’s hardware specifications is VITA 65 - or OpenVPX - a widely adopted architecture and form factor for rugged, high-performance computing. The OpenVPX family of open standards defines system-level interoperability for modular multi-vendor integrated platforms. The OpenVPX standard defines clear interoperability points necessary for integration from module to module, module to backplane and backplane to chassis.

The SOSA standard is called out in a 2019 memo issued by the U.S. Department of Defense (DoD) and signed by the secretaries of the Army, Air Force and Navy. It calls for the adoption of open standards in development activities for future weapon system modifications and new start development programs. MOSA is now codified into U.S. law (U.S.Code-2021, Title 10. 2446a, Part IV, Chapter 144B, Sec 2446a); after January 1, 2019, major defense acquisition programs “shall be designed and developed with a modular open system approach to enable incremental development and enhance competition, innovation, and interoperability.”

1. Establish an Enabling Environment
2. Employ Modular Design
3. Designate Key Interfaces
4. Use Open Standards
5. Certify Conformance

Elma is a participant and key contributor to open standards such as VITA, SOSA, PICMG and others. We have a long history of building proven products based on these standards, and have proven expertise in rugged solutions for both development and deployment on air, ground and shipborne platforms.

![Elma Advantage QUALITY EXPERIENCE Single Source Reliability TECHNICAL Know-How Resources 2](.sosa-products-capabilities-brochure/190f8602da10a6e19aa8991e2dbd3d7b0f1beffedc627ac48686289f65a33c8a.jpg)

# VITA FAMILY OF STANDARDS

The VITA trade association provides members with the ability to develop and design products based on open standards. The VITA Standards Organization (VSO) is an ANSI-accredited group that provides members with a means to work together to define and develop key computer specifications such as the family of VPX standards, which include those listed below. Elma is a key contributor to several of the Working Groups within VITA.

<table><tr><td>17.3</td><td>Serial Front Panel Data Port (sFPDP) Gen 3.0</td></tr><tr><td>42</td><td>XMC mezzanine cards</td></tr><tr><td>46.0</td><td>VPX</td></tr><tr><td>46.30 &amp; .31</td><td>Higher Data Rate VPX</td></tr><tr><td>46.4</td><td>PCI Express on VPX</td></tr><tr><td>46.6</td><td>Gigabit Ethernet Control Plane on VPX</td></tr><tr><td>46.7</td><td>10 Gigabit Ethernet on VPX</td></tr><tr><td>46.9</td><td>XMC Mapped Rear IO on VPX</td></tr><tr><td>46.10</td><td>VPX RTM</td></tr><tr><td>46.11</td><td>System Management on VPX</td></tr><tr><td>47.0-3</td><td>Environmental</td></tr><tr><td>48.2</td><td>VPX REDI: Mechanical Cooling</td></tr><tr><td>48.4</td><td>VPX REDI: Liquid Flow Through Cooling</td></tr><tr><td>48.8</td><td>VPX REDI: Air Flow Through Cooling</td></tr><tr><td>49.0</td><td>Radio Transport &amp; RF Signals</td></tr><tr><td>62.0</td><td>VPX power supplies</td></tr></table>

<table><tr><td>65.0</td><td>OpenVPX</td></tr><tr><td>65.1</td><td>New Slot and Module Profiles</td></tr><tr><td>66.0</td><td>Optical Overview</td></tr><tr><td>66.1</td><td>Optical Full size Dual MT variant</td></tr><tr><td>66.2</td><td>Optical ARINC 801 Termi variant</td></tr><tr><td>66.3</td><td>Optical Mini Expanded Beam</td></tr><tr><td>66.4</td><td>Optical Half size MT variant</td></tr><tr><td>66.5</td><td>Optical Interconnect on VPX - Hybrid Variants</td></tr><tr><td>67.0</td><td>RF and Mixed Signal overview</td></tr><tr><td>67.1</td><td>3U RF</td></tr><tr><td>67.2</td><td>6U RF</td></tr><tr><td>67.3</td><td>Flexible multi-level RF on VPX</td></tr><tr><td>68</td><td>SpaceVPX</td></tr><tr><td>68.0</td><td>VDSTU VPX SI</td></tr><tr><td>68.1</td><td>VDSTU VPX SI backplane</td></tr><tr><td>68.2</td><td>VPX SI Mezzanine (under development)</td></tr><tr><td>90.0-7</td><td>VNX+</td></tr></table>

# PIPES: FAT, THIN, ULTRA THIN

![Molecular structure diagram showing layered arrangement of R- and X- atoms with labeled positions](.sosa-products-capabilities-brochure/deec0b6050701c3eaa8edc545a5632bf19c6da5072fdbec76f7d1192ea338445.jpg)

Fat Pipe: A channel that is comprised of four links (4 Tx pairs + 4 Rx pairs) is now being referred to as a Fat Pipe or by use of the x4 nomenclature. 100GBASE-KR4 and 40GBASE-KR4, PCIe-x4.

![The image displays a schematic diagram featuring a horizontal row of blue circular nodes. Text labels are positioned above and below specific groups of these nodes. The text reads: 'Rx1+ Rx1-', 'Tx1+ Tx1-', 'Tx2+ Tx2-', 'Tx2+ Tx2-', and 'Rx2+ Rx2-'. In the central section, two lines—one dark blue and one light blue—intersect in an 'X' shape, connecting nodes across the row. Small lines connect adjacent nodes throughout the diagram.](.sosa-products-capabilities-brochure/1a16bf5084472ff53dfa30ed221762c800e6ddf0e5af3b98c45a36d0117d1b3f.jpg)

Thin Pipe: A channel that is comprised of two links (2 Tx pairs + 2 Rx pairs) is now being referred to as a Thin Pipe or by use of the x2 nomenclature. 10/100/1000BASE-T, PCIe-x2.

![The image displays a horizontal schematic diagram consisting of a row of blue circles. Above specific groups of these circles, there are text labels. The text reads 'R_x) + R_x)' above the first group of two circles on the left, 'T_x) + T_x)' above a central group of three circles, and 'R_x) + R_x)' above the final group of two circles on the right. These labeled groups are separated by single circles, and blue lines connect the left group to the central group and the central group to the right group.](.sosa-products-capabilities-brochure/42a29f45504474e0e969a5b5ddd82c7a19d00b835aa2109414d84ca6360a3fab.jpg)

Ultra-thin Pipe: A channel that is comprised of one link (1 Tx pair + 1 Rx pair) is now being referred to as an Ultra Thin Pipe or by use of the x1 nomenclature. 10GBASE-KR, 1GBASE-KX, PCIe-x1.

# SLOT PROFILES

VITA 65 defines OpenVPX in terms of four types of Profiles: Slot Profiles, Backplane Profiles, Module Profiles and Chassis Profiles. Slot profiles are differentiated by their type (payload, switch, peripheral, etc.) and the arrangement of planes and other communications ports, including apertures for blind-mate optical and/or coaxial connections. SOSA further refines VITA 65 by defining a specific subset of 3U and 6U slot profiles. These profiles can be described as Payloads, Switches, Radial Clocks, or External I/O. The standard also defines a set of approved protocols that can be implemented by Plug In Cards (PICs) for each of the define Pipes or general communications ports.

# 3U

![The image displays a vertical column of colored rectangular blocks, resembling a legend or key, with text running vertically along the right edge.  From top to bottom, the blocks are: 1.  A **red** block containing the white text '**SE**' and '**P0/J0**'. 2.  A **yellow** block. To its left is the letter '**S**'. 3.  A **light blue** block containing the white text '**Diff**' and '**P1/J1**'. To its left is the letter '**E**'. 4.  A **light green** block. 5.  A **pink** block. To its left is the letter '**S**'. 6.  A **light blue** block containing the white text '**Diff**' and '**P2/J2**'. To its left is the letter '**E**'. 7.  A small **beige** block at the bottom.  Running vertically along the right edge is the text: '**SLT3-PAY-1F1U1S1SU1U1UK-14.6.14.n**'.](.sosa-products-capabilities-brochure/dcd21453f6fad4c61ec5517fc30678d0d56e786570bd4854ece6b032fe5eba74.jpg)
IO Intensive:

This is a general purpose single-board computer slot profile.

![The image displays a vertical column of rectangular blocks with white text.  *   **Top Block:** A red rectangle containing the text 'SE' on the top line and 'P0/J0' on the line below. *   **Middle Section:** This area is divided into columns.     *   On the far left, there is a vertical strip containing a yellow square with 'S', a black square with 'E', a light blue square, and a red square at the bottom.     *   To the right of this strip, there is a large yellow rectangle, a dark blue rectangle with the text 'Diff', and a blue rectangle with the text 'P1/J1'. *   **Bottom Block:** A large grey rectangle at the bottom containing the text '67.3C'.](.sosa-products-capabilities-brochure/6e61387353c0630950836007008a359523cd5a0ed30597f256e95dbd6650f0de.jpg)
Primary and Secondary Pay- nd Secondary Payload or Compute Intensive: ompute Intensive:

These are the main heavy-duty processing and payload profiles. The differ in the size of the coax/optical aperture and the number of Expansion Plane lanes.

![The image displays a vertical stacked bar chart with a label running vertically along the left side: 'SLT3-PAY-1F1U1S1S1U12F1H-14.6.11-1'. The bar itself is divided into colored segments containing the following text from top to bottom:  *   **Red segment:** 'SE' and 'P0/J0' *   **Yellow segment:** 'S' *   **Teal segment:** 'E', 'Diff', and 'P1/J1' *   **Blue segment:** (No text visible) *   **Purple segment:** 'Diff', 'P2A/', and 'J2A' *   **Grey segment:** '67.3D'](.sosa-products-capabilities-brochure/e67c6b8312cef595f97c9da5a385260db4213de8410267bb723978d63994a943.jpg)

![The image displays a vertical column of rectangular blocks, primarily yellow, with a red block at the top and a green block at the bottom.  *   **Top:** A red block containing the text 'SE' on the top line and 'P0/J0' on the bottom line. *   **Second:** A yellow block containing the text 'Diff'. To its left is a vertical strip with the letter 'S' above the letter 'E'. *   **Third:** A yellow block containing the text 'P1/J1'. To its left are thin vertical strips stacked in blue, grey, and red. *   **Fourth:** A yellow block containing the text 'Diff'. To its left is a green vertical strip with the letter 'S' above the letter 'E'. *   **Bottom:** A green block containing the text 'P2/J2'. To its left is a green strip with horizontal lines at the bottom.](.sosa-products-capabilities-brochure/617a6923ef3c9eecb6d707c2374056e5cc8409c6f35c18054d795a8d0858c389.jpg)

Switches: These were chosen to address specific use cases required by SO-SA-based systems
![The image displays a vertical diagram, likely a connector legend, with text running vertically along the left edge reading 'SLT3-SWH-6F8U-14.4.15'. To the right is a column of colored blocks containing text: - A top red block with white text 'SE' and 'P0/J0'. - A section below with a yellow block labeled 'Diff' in black text. To its left are stacked squares: a red square with 'S' and a blue square with 'E'. - A yellow block below that labeled 'P1/J1'. - Another yellow block labeled 'Diff'. - A yellow block labeled 'P2/J2' with a blue square containing 'E' to its left. - A bottom green block with horizontal lines.](.sosa-products-capabilities-brochure/1f91ca06e89d93161f1d7a4452b68872a531ab8f8c7644405b78bfe8d039bef1.jpg)

![The image displays a vertical column of text and colored rectangular regions, characteristic of a schematic symbol pinout for an electronic component.  **Top Region:** *   **Background:** Red rectangle. *   **Text:** White text reading 'SE' on the top line and 'P0/J0' on the line below.  **Middle Region:** *   **Background:** Yellow rectangle. *   **Text:** Black text. On the left is 'SE'. On the right, 'Diff' is on the top line and 'P1/J1' is below it.  **Lower Region:** *   **Background:** Light blue horizontal strip. *   **Text:** White text 'SE' on the left. Black text 'Diff' on the right (top line). Below 'Diff' are 'P2A/' and 'J2A' stacked vertically.  **Bottom Region:** *   **Background:** Grey rectangle. *   **Text:** Black text. 'P2B/' is on the top line and 'J2B' is below it.](.sosa-products-capabilities-brochure/f68ad7bbf76a7ef2f16bf29667bd0a8902a1737e2542c3d1f9117d6fd433f362.jpg)

![The image displays a vertical list of interface items.  *   **Top Item:** A red rectangle containing the white text 'SE' and 'P0/J0'. *   **Second Item:** A row with a vertical red strip on the left containing stacked white letters 'S' and 'E', next to a solid blue horizontal bar. *   **Third Item:** A row with a vertical blue strip on the left containing a white letter 'S', followed by black text 'Diff' and 'P1/J1'. *   **Fourth Item:** A row with a solid red horizontal bar on the left and a solid green horizontal bar on the right. *   **Bottom Item:** A row with a vertical white strip on the left containing stacked black letters 'S' and 'E', followed by black text 'Diff' and 'P2/J2'.](.sosa-products-capabilities-brochure/78c81458f666a3ba1eff48b0844d4d37bb8fec8805c1e3cc73ed74e0211d354b.jpg)
External I/O: This was included in SOSA to address the need of bringing large numbers of legacy I/O into or out of the system. SOSA has specific rules on the use of this profile.

![The image displays a vertical column of color-coded labels and a strip of text on the far right edge.  From top to bottom, the labels contain the following text: *   **Red block:** 'SE' above 'P0/J0'. *   **Middle section:** A red strip on the left with 'S' above 'E'. To its right are stacked yellow blocks. The top yellow block contains 'Dif' above 'P1A/'. The bottom yellow block contains 'J1A'. *   **Grey block:** 'P1B/' above 'J1B'. *   **Grey block:** 'P2/J2'.  Running vertically along the far right edge is the text: 'ISLT3-PAY-1F1U1S1S1U1U1K-14.6.14-n'.](.sosa-products-capabilities-brochure/8306077b1823ba5ed77c722e5c34b3e17fc67a3164aa9bf257bf6cf3c75dda9d.jpg)
High-density coax/
optical: This was introduced into SOSA primarily to provide a coaxial switching capability.

![The image displays a vertical column of graphical blocks and text. At the top, a red rectangle contains the white text 'SE' above 'P0/J0'. Below this is another red rectangle with the text 'Diff' above 'P1/J1'. To the left of the 'Diff' rectangle are two small stacked squares: a white one with 'S' and a blue one with 'E'. Below the 'Diff' section are thin horizontal yellow and blue lines, followed by a thick green bar. To the left of the green bar are two small stacked squares: a black one and a red one. At the bottom, a large grey rectangle displays the black text '67.3C'.](.sosa-products-capabilities-brochure/15004a4f242cc4b35dfea3627cf96d64ce9d53fd7521123a7d012b53a3298e66.jpg)
Radial Clock: Intended to dr
common high-precision radial clocks (REF\_CLK and AUX\_CLK) across the backplane.

# 6U

![SLT6-PAY-4F2Q1H4U1T1S1TU2U2T1H-10.6.4-n   Group   SE   P1/ J1   S E   Diff   P2/ J2   P3/J3 67.3C    --- --- --- --- --- --- ---    Left Panel   Red   Blue   Green   Yellow   Orange   Dark Grey     Right Panel   Yellow   Orange   Purple   Light Blue   Pink   Dark Grey  ](.sosa-products-capabilities-brochure/db9742e0035c4d98fcb361e51639ac1a35ccc257efc8f43191d4392a8c7207e4.jpg)

Payload:

Two payload profiles, one with XMC mapped pins and one with extra expansion plane lanes.

![The image displays a vertical column of text labels, likely pin designators or labels on a circuit board, arranged on colored backgrounds. From top to bottom, the text reads:  SE P0/J0 SE SE Diff P1 J1 SE Diff P2/ J2 SE Diff P3/ J3 SE Diff P4/ J4 SE Diff P5/ J5 SE Diff P6A/ J6A SE Diff P6A J6A P6B/ J6B](.sosa-products-capabilities-brochure/149a0a29896dba81f67408f7e779edf72c53a472017f1d1a694fe6392472ea0a.jpg)
Switch: Data Plane/ Expansio Plane switch sl profile

![The image displays a vertical timeline or schedule chart. On the left side, there is a column of rectangular blocks containing the text 'SE' in white. The top two blocks are red, and the five blocks below are black. To the right of these blocks are corresponding labels in black text, aligned with each row:  *   **P0/J0** *   **P1/J1** (accompanied by a blue horizontal bar to its left) *   **P2/J2** *   **P3/J3** *   **P4/J4** (accompanied by a green horizontal bar to its left) *   **P5/J5** *   **P6/J6**](.sosa-products-capabilities-brochure/7ff735d09d3d2fc39157910821c22dd3eaaa52fabe02b5de94e9360dfc74796b.jpg)
External I/O: Provides similar functionality and with the same rule set as the 3U version.

![The image displays a vertical stack of rectangular blocks containing text. From top to bottom, the text in each block is as follows:  **Top Section:** *   **Red Block:** 'SE', 'P0/J0' *   **Left Column Stack:**     *   Yellow Block: 'S', 'P1'     *   Blue Block: 'S', 'P1'     *   Blue Block: 'P1'     *   Red Block: 'S'     *   Blue Block: 'S'     *   Red Block: 'P1' *   **Right Column (aligned with top part of stack):**     *   Yellow Block: 'Diff', 'P4/', 'J1'     *   Blue Block: 'P4/' *   **Left Column Stack (below previous):**     *   Blue Block: 'S'     *   Green Block: 'E'     *   Blue Block: 'S'     *   Green Block: 'E' *   **Right Column (aligned with bottom part of stack):**     *   Yellow Block: 'Diff', 'P4/', 'J2'     *   Blue Block: 'P4/'  **Middle Section:** *   **Grey Block:** 'P3/J3', '67.3C' *   **Left Column Stack:**     *   Pink Block: 'S'     *   Green Block: 'E'     *   Pink Block: 'S'     *   Green Block: 'E'     *   Pink Block: 'S'     *   Green Block: 'E' *   **Right Column:**     *   Yellow Block: 'Diff', 'P4/', 'J4'     *   Blue Block: 'P4/'  **Bottom Section:** *   **Grey Block:** 'P5/J5', '67.3C' *   **Grey Block:** 'P6/J6', '67.3C'](.sosa-products-capabilities-brochure/6c33a60366d9dfc039b26b6f2608a4805867ef80b5334372675a59dc4ebfb51b.jpg)
High-density coax/optical:
Similar to the 3U variant

# PROFILES

# MODULE PROFILES

To capture what particular protocols are supported by a particular PIC, a mechanism called the Alternative Module Profile Scheme (AMPS) is used. AMPS defines a string that includes a set of protoco fields enumerated in a manner so that one can quickly determine what protocols a particular PIC can support. The AMPS string is constructed using the following format:

Figure 1: Alternative Module Profile Scheme (AMPS) String Construct. From SOSA Technical Standard, Version 1.0

![The diagram illustrates a naming convention with a central string and various labels explaining its components.  **Central String:** `MODAuy-z.z.z-i-j-dcp-(cLkm-cLkm)(cLkm)(cLkm-cLkm)`  **Labeled Blocks and Connections:**  *   **Categorization Type**: Points to `MOD`. *   **Indicates Alternative naming format**: Points to `A`. *   **ANS dash option**: Points to the dash between `y` and `z.z.z`. *   **Slot Profile dash option**: Points to the dash between `z.z.z` and `i-j`. *   **Protocol Field – Port Count, Protocol, and Modifiers**: Points to `(cLkm-cLkm)(cLkm)`. *   **Form Factor**: Points to `uy`. *   **Clock Options**: Points to the dash between `uy` and `z.z.z`. *   **(VITA 65.0) Section**: Points to `z.z.z`. *   **Depth, Cooling, Pitch**: Points to `i-j`. *   **( ) around fields for copper planes**: Points to `(cLkm-cLkm)(cLkm)`. *   **( ) around fields for Apertures**: Points to `(cLkm-cLkm)`.](.sosa-products-capabilities-brochure/582dc2addf0d07d9d560601403b5adff91485c1777035172ff87421f36867825.jpg)

Each code in this format has a set of values representing the approved protocols, with appropriate modifiers.

The approved protocols include:

• Data Plane: PCI Express, Ethernet (1000BASE-KX, 10GBASE-KR, 10GBASE-KR4, 40GBASE-KR4, 25GBASE-KR, and 100GBASE-KR)
. Control Plane: Ethernet (1000BASE-KX, 10GBASE-KR, 25GBASE-KR)
• Expansion Plane: Dependent on the profile, but generally PCIe, Ethernet, S-FPDP, and LVDS
Other ports such as USB, Serial UART, DisplayPort, etc.

To learn about AMPS strings and the approved SOSA protocols see the SOSA Technical Standard.

# POWER AND SYSTEM MANAGEMENT

SOSA refined the rules from VITA 46.0 and VITA 65.0 regarding power. Specifically, it calls out that only the VS1 rail (12VDC) is to be used by SOSA aligned plug-in cards for primary power, while 3.3V\_AUX is limited to system management functions and VBAT to powering real-time clocks. This is an important feature of SOSA. Prior to this rule, vendors could use whatever ratio of the three input power rails (VS1=12VDC, VS2=5VDC, and VS3=3.3VDC). The result was that for any particular integrated system there was an unpredictable consumption ratio of these three rails, making it difficult for power supply vendors to offer truly COTS power supplies. SOSA solved this, and there is a growing selection of VITA 62 and stand-alone power supplies available on the market.

<table><tr><td colspan="3">3U Plug-in Module Power Supplies</td></tr><tr><td>Pin name</td><td>2017 usage</td><td>Proposed Recommendations</td></tr><tr><td>VS1</td><td>+12 VDC</td><td>+12 VDC</td></tr><tr><td>VS2</td><td>+3.3 VDC</td><td>Not used</td></tr><tr><td>VS3</td><td>+5 VDC</td><td>Not used</td></tr><tr><td>+12V AUX</td><td>+12 VDC</td><td>Not used</td></tr><tr><td>-12V AUX</td><td>-12 VDC</td><td>Not used</td></tr><tr><td>3.3V AUX</td><td>+3.3 VDC</td><td>+3.3 VDC</td></tr><tr><td>VBAT</td><td>+3 VDC</td><td>+3 VDC</td></tr></table>

# SYSTEM MANAGEMENT

![Based on the provided image, here is the accurate description of the flowchart:  **Labeled Blocks:** *   **System Manager (1.1)** (Light green oval) *   **Plug-In Cards (PICs)** (Dark blue oval) *   **Infrastructure** (Dark blue oval) *   **Chassis Manager** (Orange oval inside the Infrastructure block) *   **Legend** box containing:     *   **In-Band System Management Interface** (represented by a dashed line)     *   **Out-of-Band System Management Interface** (represented by a solid line)     *   **SOSA Module** (represented by a light green oval)     *   **Hardware Element** (represented by a dark blue oval)     *   **VITA45.11 Logical Element** (represented by an orange oval)  **Connections:** *   **System Manager (1.1)** connects to **Plug-In Cards (PICs)** via a dashed line labeled: 'SOSA In-Band System Management Interface Implementation Technology: REST/OAS' *   **System Manager (1.1)** connects to **Chassis Manager** via a dashed line labeled: 'SOSA In-Band System Management Interface Implementation Technology: REST/OAS' *   **Plug-In Cards (PICs)** connects to **Infrastructure** via a solid line labeled: 'SOSA Out-of-Band System Management Interface Implementation Technology: IPMB'](.sosa-products-capabilities-brochure/cf3eff584cc0fa46e88a59ce3da461f59caab8f8c564fea8ab13d0d53407467b.jpg)

An important element in the SOSA architecture is System Management. Not only is there a SOSA module named System Manager (Module 1.1), but it defines both an in-band and out-of-band communication and control mechanism. The out-of-band mechanism is based on the VITA 46.11 standard.

The Intelligent Platform Management Controller (IPMC) found on each SOSA Plug-in Card, along with the Chassis Manager Module (CMM) which interfaces with the System Manager and provide the overall hardware control and monitoring function are two key elements of the System Manager subsystem. Elma offers a range of products to address both of these functions, all SOSA aligned.

# ELMA PRODUCTS ALIGNED TO SOSA

As a leading contributor to open standards like SOSA that support the DoD’s MOSA initiatives, Elma’s backplanes are designed in alignment with The Open Group® Sensor Open Systems Architecture™ Technical Standard, or SOSA™, in slot counts from 2 to 12.

They provide the foundation for high-performance mission-critical systems requiring lower life-cycle costs and rapid technology insertion. They enable complex, high speed signal processing systems with the latest optical fiber and RF connectivity as well as slot profiles for SBCs and payload expansion.

The backplanes support high-speed signals on all data paths and VITA 67.3 connectors and VITA 66.5 optical connectors.

Developers can use the development backplanes as configured or work with Elma to identify your specific profile configuration needs.

As the leader in open standards backplane design and manufacturing, our cutting-edge signal integrity analysis informs the designs of our high-speed backplanes, handling critical data at high performance speeds.

![Silhouettes of four fighter jets flying in formation against a vibrant sunset sky (no text or symbols visible)](.sosa-products-capabilities-brochure/c6eaa2b2940f5a0546401fe7a257017e393d8795179deffcd959641608c6aafc.jpg)

# Signal Integrity is the backbone of our Backplane designs

At speeds up to 100GBASE-KR4, every feature of backplane design can influence signal integrity (SI) – every trace, layer separation, turn bend, via, via transition, etc. Elma’s signal integrity analysis and simulations consider every element in the channel to ensure optimal performance.

We focus on each feature individually to model the complete channel and optimize the return loss for each. Once modeled, they are concatenated together along with the trace and connector models to create the complete channel. Today’s critical high-speed systems require nothing less than reliable, repeatable solutions - every time.

![Silhouettes of fighter jets against a sunset sky with colorful clouds and city buildings in the background (no text or symbols visible)](.sosa-products-capabilities-brochure/8a0e2c185db9b66163aa62cec880dffe3728321b41e330fd6e0133af0c675dc1.jpg)

![Close-up of a green printed circuit board with multiple black modules and gold contacts (no visible text or symbols)](.sosa-products-capabilities-brochure/371753e2121997f56d72048841991f03119137be4998c6b61e331be54b8a8d5d.jpg)

# SOSA BACKPLANES

# 3U Backplanes

Available in standard or customized configurations of any or all with any slot profile for PICs aligned to SOSA.

![The image displays a green printed circuit board (PCB) featuring rows of circular solder pads along the top and bottom edges. In the center, four large black rectangular components are arranged horizontally. Below these black components, there are four white square areas. In the bottom right corner, the text 'SILVA' is printed in white.](.sosa-products-capabilities-brochure/0ff1d843e92648581b6b46743f039c50fa1fa82fd67af704c2d93c59e688b366.jpg)

![The image displays a close-up view of a green printed circuit board (PCB). Five long, black, rectangular components are mounted vertically in a row across the center. Each black component is flanked by silver solder points above and below it. For the three rightmost components, small, gold-colored rectangular components are situated just above the bottom silver solder pads. White circular solder pads line the top and bottom edges of the board. Faint, illegible white text runs vertically along the far right edge.](.sosa-products-capabilities-brochure/2846436626e517343c541d5010f675e6abd10248d31b401c0c4f2f6002ab55a0.jpg)

![Close-up of a green printed circuit board with multiple black modules and gold connectors (no visible text or symbols)](.sosa-products-capabilities-brochure/bbeffa1019fb116756100c8857566a4026cb76ad52e0cc08d7479525e0244f20.jpg)

![Close-up of a green printed circuit board with four black cylindrical components and gold contacts (no visible text or symbols)](.sosa-products-capabilities-brochure/ebced1415df98f90b5caff7c1e767e0ff9d4478ec2b74ce92bd6f40a32d66e71.jpg)

# Backplanes for Specific Cooling Schemes

VITA 48.x calls out specific configurations to accommodate specialty cooling methods. 3U backplanes are available in wider spacing for cooling standards such as VITA 48.8 for air flow-through (AFT) or VITA 48.2 for liquid flow-through.

# 6U Backplanes

6U backplanes are part of the standard and are available by request.

# POWER AND GROUND

# Power & Ground Only Backplanes

Elma’s wide selection of power and ground only backplanes provide a cost-effective solution those who are developing their own cards or haven’t decided on the slot configuration of their system. The only assigned pins are 3.3V, 5V, 12V, GND, and utility plane signals. The remaining pins are user-defined and pass through from front to rear. The rear connectors are all fully populated and can be accessed with Elma’s slot-to-slot or slot-to-I/O bulkhead cable assemblies or rear transition modules for system development.

![Green printed circuit board with multiple black components and connectors (no visible text or symbols)](.sosa-products-capabilities-brochure/a23d41ab84db1b8138505183aa52ea300181b64aa2ce50fe51aed77a43fc1da5.jpg)

![A green printed circuit board featuring a large black multi-pin connector in the center labeled 'P1' with pin indicators '1 2 3 4' above it. On the left side, there is a white logo reading 'ELMA' with 'P/N 150-264-024' printed above it and 'REV A' below it. Vertical text on the far left edge reads 'P/N 150-264-024'. Two white coaxial connectors are mounted on the top left and right. The bottom section contains a row of gold-plated circular components. Text near the bottom left lists resistor locations: '100 101 102 103 104 105 106 107'. A white label on the far right edge displays a barcode and the number '150-264-024'. Small text '150-264-024' is also visible near the bottom right corner.](.sosa-products-capabilities-brochure/89376c0b7e3e95760bb5c256f0d68ae31b3f266cf803a82708a7571c0c1ffe34.jpg)

# Power Interface Boards (PIBs)

Designed to facilitate the use of pluggable VITA 62.x power supply modules in systems requiring them. Elma’s standard backplanes use power studs which are typically wired to standalone (frame) power supplies. With PIBs, customers can choose between Elma’s standalone (frame) power supplies and pluggable VITA 62.x supplies.

# Find What You Need with Interactive Backplane Charts

Our backplane charts are designed to show a list of the profiles included in each available backplane configuration. Mouse over the backplane model number, and it will show you the backplane topology at a glance.

![Scanned document with handwritten-style text blocks and a legend for 'Paynotations' and 'Switch/Instruments'](.sosa-products-capabilities-brochure/84e8fcbe1849626aa2221d5d165c118b71431222c5e327b16dafd965c1f071d3.jpg)

# DEVELOPMENT CHASSIS

OpenVPX SOSA Sensor Open Syitems Architecture

# Accelerate your time to deployment with our development chassis for 3U OpenVPX plug-in cards aligned to SOSA™

Our lineup of easy access development platforms significantly enable fast and efficient system design and integration as well as testing of plug-in cards (PICs) aligned to SOSA.

Features include open frame formats for probing and quick board changes; 3U VPX backplane with 1-12 profiles aligned to SOSA (or power and ground only for board development); rear transition slots; chassis management; fixed or plug-in power; choice of air- and/or conduction-cooled card guides, VITA 48.x cooling, and more.

![3D rendering of a black industrial machine with internal components and labeled ports (no readable text or symbols)](.sosa-products-capabilities-brochure/477d0b88321baa2cea7f472fdb78d9dcca6631137143194e5a44b279e1c8e588.jpg)

# Choose the Development Platform That Best Fits Your Needs:

![Two industrial testing machines side by side, one with a green component and the other with circuitry (no visible text or labels)](.sosa-products-capabilities-brochure/b21ddec7abb5af0591e3c88bbd03efbc5016332da4766fd35892de24fb9cb781.jpg)

# CompacFrame

Lightweight and compact, this platform family comes in a Slimline unit for 1-4 slots, or or a mid-range unit for up to 8 slots or 5 AFT (VITA 4.8) wide slots.

![Front view of a black electronic device with multiple ports and control panels (no visible text or labels)](.sosa-products-capabilities-brochure/515e68937b2f2d935abcda3f599051467f47e05028457838e4d6aee9c87d30ac.jpg)

# E-Frame Platform

This full-sized platform ships with a 12-slot backplane that includes all SOSA 1.0 & CMOSS slot profiles. Optional 2-slot PIB for VITA 62 plug-in power supplies.

![Exterior view of a blue industrial machine with internal components and no visible text or symbols](.sosa-products-capabilities-brochure/761fdb3298e5ca564301023d34389ae162cba45d2e780a006900042479d01089.jpg)

# D-Frame Platform

When space is at a premium, or you need take it on the road, the D-Frame is the smallest platform available. It can accommodate up to four 3U PICs.

# DEPLOYMENT-READY RUGGED ENCLOSURES

Developing high-speed signal processing equipment for harsh SWaP constrained installations requires a holistic design approach in which Elma excels. Optimal chassis designs must consider the payload power envelope in conjunction with extremes in temperature, shock, vibration, ingress, EMC and other environmental factors. Elma supplies chassis for use across a range of defense programs serving on land, sea or air. Our standard and custom chassis designs are available with a range of cooling choices: conduction cooling, air cooling, or hybrid conduction and air-cooled models, and liquid cooling. Choose from aluminum or composite chassis construction.

![Three industrial equipment units: orange, blue, and green, with no visible text or symbols.](.sosa-products-capabilities-brochure/e9dd5e15afef1bc88dba744deac1b89b56a0ab45a6627020bb5f595723828367.jpg)

# SOSA ALIGNED DEPLOYABLE ATRs

RUGGED ENCLOSURES

# 19" CHASSIS - MIL RUGGED

TYPE 12R1 & 12R2 CHASSIS FAMILIES

![Close-up of a black industrial electronic device with multiple ports and connectors (no visible text or symbols)](.sosa-products-capabilities-brochure/a079a831f54cdbdb915d88590ec680ac6c6c1b94ff9945fa009ee67598ef41ef.jpg)

This family of rugged enclosures has been specifically designed to accommodate 3U 25Gb dual domain backplanes and plug-in cards aligned to SOSA. Unit is conduction-convection cooled to maximize airflow and cooling (other cooling methods supported). VITA 46.11 Tier 3 out of band (OoB) chassis manager. Designed to meet most environmentally rugged MIL standards.

![Exterior view of a black industrial or military equipment unit with grid pattern and mounting brackets (no visible text or symbols)](.sosa-products-capabilities-brochure/5465e7dcb754f8661285718f7e261a0d0ccab4ab22d5901c96319eba59a94cd7.jpg)

The COTS 12R1 and 12R2 19” rackmount chassis are high-quality and cost-efficient rugged enclosures for defense applications. It includes up to 14U high models for 3U and 6U Plug-In Cards. Intended to withstand the demands of a military environment, the 12R1 (lightweight rugged) and 12R2 (fully rugged) are designed to meet benchmark military standards.

![Two views of an electronic device: top shows a beige box with internal components, bottom shows a gold tray with blue wheels (no visible text or symbols)](.sosa-products-capabilities-brochure/08c4d2a2c462ddf0d03304740e43220ad7e913e26326fab77f434f7082d0e710.jpg)

# CMFF

This enclosure family is designed to meet the dimensional requirements of the CMOSS Mounted Form (CMFF) and Standard A-Kit Vehicle Envelope (SAVE) trays. This fieldproven platform ships in multiple PIC slot configurations of 3U backplanes aligned to SOSA.

![Plug-In Cards (PICs) Aligned to SOSA Elma platforms aligned to SOSA are functionally tested and proven to work with top tier plug-in card suppliers, an essential step in building mission-critical systems for use in defense applications. Elma can help select or ensure that the complement of boards for your system are functionally interoperable in your development or deployed system.](.sosa-products-capabilities-brochure/3a11c315d50ba84104c73a30419dd1600a3507c0c7c201f6354b11bcd8b9a49f.jpg)

#

# PLUG-IN CARDS

Our COTS sub-system embedded designs are realized through a combination of best in classs partner products and Elma‘s field-proven chassis management, I/O and networking boards. – integrated with renowned Elma packaging solutions. Elma has established, long-term relationships with highly qualified industry leaders, teaming to deliver the best solutions for mission critical applications the world over. As a trusted provider of integrated COTS solutions and board products to the defense industry, we support long-term defense programs with leading-edge technologies and crucial legacy solutions that keep systems up and running.

# IO-Intensive Payload Cards (SBCs)

These cards are general purpose single board computers with Intel or ARM-based CPUs for high performance processing.

![Two views of a device housing showing internal components and packaging (no visible text or symbols)](.sosa-products-capabilities-brochure/bd80a6141b9d6a3a980e8c3efff4c7ca633422e2b8e8be6132ae8d2e26e59edf.jpg)

# Compute-Intensive Payload Cards (SBCs)

High performance processing features on leading-edge single board computers and GPGPU processors. Other boards that fit this profile are FPGA cards, RF transceivers, microwave tuners, and software-defined radio (SDR) cards.

![Two electronic components: a flat case with black connectors and a circuit board with integrated circuits (no visible text or symbols)](.sosa-products-capabilities-brochure/0bb8e451eec9d79d1621168857cce969b0f36e19f0362b49a7930d969af27c9d.jpg)

# Networking

High-performance Ethernet switches are the communication building blocks of a system. Elma offers boards supporting either single or dual planes, up to 100 Gbps on copper or optical interfaces, with field-proven software management of Layer 2 & 3 configurations.

![Two black electronic components with connectors and mounting holes, shown from different angles (no visible text or symbols)](.sosa-products-capabilities-brochure/60f47579345a837d061700efcb50ab82a2eeb16c6bf2af960626425ad0b0cd18.jpg)

SOSA

SensorOpen Systems Architecture

MEMBER

![ELMA.COM Modular Interoperability Comes in Many Functions Elma works with many partners in the community that SOSA has enabled. Whether it's high performance networking or storage, or support for legacy and discreet I/O interfaces, we are well connected to the community in order to support unique requirements. 12 SOSA PRODUCT OVERVIEW](.sosa-products-capabilities-brochure/d815046b492e6040caa3077e4e47d3271711cf0e73d81aefaf434fc9e15d899e.jpg)

![Electronic equipment components including an ELMA module and a microchip, with water splashing around (no visible text or symbols)](.sosa-products-capabilities-brochure/96be9e614cc7790843bbf72eb11a3ab6d2204abb866fc571d4e8d5f58fe9ed15.jpg)

# EMBEDDED BOARDS

FIELD-PROVEN PERFORMANCE

Our COTS sub-system embedded designs are realized through a combination of best in classs partner products and Elma‘s field-proven chassis management, I/O and networking boards – integrated with renowned Elma packaging solutions. Elma has established, long-term relationships with highly qualified industry leaders, teaming to deliver the best solutions for mission critical applications the world over. As a trusted provider of integrated COTS solutions and board products to the defense industry, we support long-term defense programs with leading-edge technologies and crucial legacy solutions that keep systems up and running.

# Radial Clock Cards (PNT)

The Radial Clock profile supports cards that provide accurate position, navigation, and timing (PNT) solutions. It is critical to precise navigation solutions.

![Interior view of a computer drive chassis showing internal components and casing (no visible text or labels)](.sosa-products-capabilities-brochure/c4e90ab94ea146860788068b83875fdcbdb3af7c870cde019e0fa86cbc8359d6.jpg)

# Cabling for Development

Compliant to the latest VITA 46 specifications, cabling assemblies are ideal for backplane and system development. They can be used to make I/O and slot-to-slot connections.

![Close-up of a green circuit board with black modules and blue connecting wires (no visible text or symbols)](.sosa-products-capabilities-brochure/6d2d4e35db3c38a4bfd375e617e8544d98b77b61b7e1010dd870cd414092e003.jpg)

# Power Supply cards

VITA 62 defines a the power connector for the backplane or interface board and the module that can be plugged into a SOSA aligned system. PSUs currently support up to 750W each.

![The image displays a close-up, angled view of a rectangular computer hardware component, likely a CPU socket. The upper portion is a silver metallic block featuring horizontal ridges running across its surface. On this metal surface, there are three rows of four small, circular indentations. Below the metallic section is a black base containing a dense array of vertical metal pins. On the far left and right edges, near the bottom, there are small, greenish metallic hinges or locking clips. Faint, illegible text is visible on the upper left side of the metallic surface.](.sosa-products-capabilities-brochure/2511afea0319fe0662c898be971d19182df40ccbe39c52bf9519d21c96ec9b52.jpg)

![The image displays a green printed circuit board (PCB), which appears to be an industrial controller or I/O module. It is flanked by silver metal mounting brackets on the left and right sides. Along the bottom edge, there is a dense row of black connector pins.  Near the top center of the board, a white label is affixed with the text **'1769-L32C'** printed on it. Below this label, a warning symbol (an exclamation point inside a triangle) is visible. Additional silkscreen markings on the board include letters such as **'P'**, **'E'**, **'X'**, and **'Y'** near the bottom edge.](.sosa-products-capabilities-brochure/3497100108ae059eb65f4ca4c9a2428425e032e8f3f8d652af05628ae57cdfb3.jpg)

# Chassis Management

Maximizing system uptime is critical. Elma‘s chassis management products provide Tier 3 and Outof-Band features to ensure proper operation of platforms aligned to SOSA.

![Two views of an electronic circuit board: one with internal components and ports, the other showing external hardware (no visible text or symbols)](.sosa-products-capabilities-brochure/50ea41aa7ef7eeb4673c445d7c4b16be551da5609143ec37d52a2d5188cbc382.jpg)

# External I/O & High-Density Coax/Optical Cards

This slot profiles address legacy I/O commonly found in aircraft discreets and well as commonly found RF switching boards.

# SERVICES AND CAPABILITIES

Open standards architectures form the backbone of our embedded computing designs. Our team of mechanical and electrical design engineers are experts in enclosure configuration, complex thermal management, I/O interconnects, EMC, shock & vibration, system monitoring, as well as lifecycle management and reliability considerations.

We perform rigorous design and test with in-house design verification and testing, including thermal chambers and vibration tables. The lab enables Elma engineers to thoroughly test and verify performance each step of the way.

We use the latest in 3D modeling, thermal analysis, structural analysis and signal integrity software, and apply a modular building block approach to leverage proven designs for new system concepts. Combine all this with a proactive product life-cycle management system for the long-term support and reliability you need.

# Quality - Assured

Elma is an ISO 9001: 2015 and AS9100 certified supplier. All of our quality procedures are implemented and maintained in accordance with those standards. At Elma, we strive for excellence by practicing completeness, accuracy, timeliness, and by exceeding expectations in everything we do.

![The image is a collage of four photographs arranged in a 2x2 grid depicting laboratory settings and equipment:  *   **Top Left:** A laboratory room featuring a large white environmental chamber or incubator with a vertical blue stripe and digital display in the foreground. In the background, a large blue cylindrical tank rests on a blue cart near a grey cabinet. *   **Top Right:** Two people are seated at a table. A woman with glasses and blonde hair is looking at a laptop screen, while a man with dark hair and a beard sits beside her, also looking at the screen. *   **Bottom Left:** A testing setup consisting of a large black cylindrical base (likely a vibration table) supporting a black platform. Three white rectangular units with vents are mounted on the platform. In the foreground, an orange case features a blue circular sticker with the white number '**1**'. *   **Bottom Right:** A room with concrete walls, resembling an anechoic chamber. A black microwave oven sits on a small stool in the center, and a camera or sensor is mounted on a tripod to the right.](.sosa-products-capabilities-brochure/029c032346e10a91dc6258c56e6a7b5de50ccf741d2347258a36ffb12ada540a.jpg)

# Program Management

Elma provides program oversight from initial project definition through final delivery. Project level activity tracking is managed by a designated individual who serves as a communication hub for status updates. The goal of our experienced program management team is to ensure on-time delivery of systems that meet project specifications.

# An Experienced Approach

![Three business professionals in a modern office setting, one handing a white box to another (no visible text or symbols)](.sosa-products-capabilities-brochure/16aed3ece35d2c6814a626a444d61722aa72998155600aaa70afd31c269f237a.jpg)

# SERVICES AND CAPABILITIES

Elma hires the best teams for all phases of the customer journey – from initial design with the product and engineering teams, to manufacturing and project management, our people are experts in providing every process along the way. Below are some of the services and capabilities we offer.

› Signal integrity and simulation
› EMC and ESD experience
› Cooling and thermal simulations
› Shock and vibration mitigation
› Integration of displays and touch screens
› Digital printing technologies
› Front panel and enclosure customization
› Sub-system integration and assemblies

![Exterior view of a black server rack with internal components and indicator lights (no visible text or symbols)](.sosa-products-capabilities-brochure/1c88e5b51adb1fb52f7141c3b337329ce02a111cdb919cfa95cc9b602b1047ad.jpg)

![Exterior view of a beige electronic device with internal components and mounting holes (no visible text or symbols)](.sosa-products-capabilities-brochure/1f6e114165ef77483a20d86dece7b9e493307350dafef636372d3ee2ebfc8541.jpg)

![Electronic component with black body and metallic connectors, no visible text or symbols](.sosa-products-capabilities-brochure/ae0a9c607bcbced132a1a751dd31f4f7d739de364dba41db3fd41813707d3ad2.jpg)

![Green printed circuit board with multiple black modules and gold contacts (no visible text or symbols)](.sosa-products-capabilities-brochure/eb141e5d5a4bcfab15423c1472b6f3d04631529bd0e427b554aa496e3c6b4028.jpg)

![3D rendering of a gray industrial electronic device with multiple ports and connectors (no visible text or symbols)](.sosa-products-capabilities-brochure/ccfab0e70abdd3b4667a225ba1a111174405b6e6ae9a082daa09323cca19d422.jpg)

![Exterior view of an ELMA industrial control unit with multiple ports and connectors (no visible text or symbols)](.sosa-products-capabilities-brochure/7198763c647b06acd006ff1f2fab591bd5e4932da9dfad96116628c6a603ef28.jpg)

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# Elma Electronic AG, Switzerland

Hofstrasse 93

CH-8620 Wetzikon

T: +41 44 933 41 11

F: +41 44 933 42 15

sales@elma.ch

# Elma Electronic GmbH, Germany

Stuttgarter Strasse 11

D-75179 Pforzheim

T: +49 7231 97 34 0

F: +49 7231 97 34 97

info@elma.de

# Elma Electronic France SA

16 rue de Hannah Arendt

Parc des Forges

F-67200 Strasbourg

T: +33 38 85 67 25 0

sales@elma-electronic.fr

# Elma Electronic UK Ltd.

Solutions House

Priory Business Park

Fraser Road

Bedford MK44 3BF

Great Britain

T: +44 1234 838822

F: +44 1234 836650

sales@elma.co.uk

# Elma Electronic Romania SRL

Chisoda, DN 59 km8 + 550m

RO-307221 Judetul Timis

T: +40 374 480 400

F: +40 256 249 820

sales@elma.ch

# Elma Electronic Israel Ltd.

34, Modi'in St., I.Z.Sgula

IL-49271 Petach-Tikva

T: +972 3 930 50 25

F: +972 3 931 31 34

sales@elma.co.il

# Elma Electronic Inc., USA

44350 S. Grimmer Blvd

Fremont, CA 94538, USA

T: +1 510 656 3400

F: +1 510 656 3783

sales@elma.com

# Optima Stantron, USA

2305 Newpoint Parkway

Lawrenceville, GA 30043, USA

T: +1 770 496 4000

F: +1 770 496 4026

sales@elma.com

# Elma Electronic Private Ltd., India

Green Arch

3rd Phase 1st Main

J.P. Nagar

Bangalore 560078

sales@elma.com

# Elma Asia Pacific Pte. Ltd., Singapore

8 Ubi Road 2

\# 07-14 Zervex Building

SG-408538 Singapore

T: +65 6479 8552

F: +65 6479 8662

sales.elmaap@elma.com

# Your local solution partner
[🔗 Link to the original document](.sosa-products-capabilities-brochure/sosa-products-capabilities-brochure.pdf)
