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Standards Updates

The March 2019 VITA Standards Organization (VSO) standards’ meeting was held in Las Vegas, NV. This update is based on the results of that meeting.

Contact VITA if you are interested in participating in any of these working groups. Visit Events for details on upcoming VSO meetings. If your company is not attending the face-to-face meetings physically or via WebEx, you are missing an excellent opportunity to network, contribute and influence the future of VITA standards. We meet every two months and would love see more participation at our meetings and working groups.

Several working groups have current projects underway; the following roundup summarizes those projects:

VITA 40: Status Indicator

Objective:  This standard defines the colors, behaviors, placement, and labeling of service indicator lamps for boards, field replaceable units, and enclosures.
Status: This standard was withdrawn several years ago. VITA has been requested to revive the standard. The original document has been updated to the current format for VITA standards. Minor updates have been made to correct errors in the original document. The solicitation for balloters on VITA 40 has been submitted for the ANSI balloting stage.

VITA 46.0: VPX: Baseline

Objective: The VITA 46 base standard defines physical features that enable high-speed communication in a compliant system.
Status: The ANSI/VITA 46.0-2019 VPX Baseline Standard was ratified by ANSI and VITA. The standard is available for download by VITA members and is posted at the VITA Store for purchase by non-members.

VITA 46.30: VPX: Higher Data Rate

Objective: The VITA 46.30 standard defines a standard for a VPX con-nector that supports higher data rates, to at least 25 Gbaud – for protocols such as 100GBASE-KR4 Ethernet and PCIe Gen 4. The higher data rate connectors compliant to VITA 46.30 are intermateable with legacy VITA 46.0 connectors and follow the same form factor.

VITA 47: Environments, Design and Construction, Safety, and Quality for Plug-in Units

Objective: Supplying vendors’ certification of commercial-off-the-shelf (COTS) plug-in units to this standard will facilitate the cost-effective integration of these items into larger systems.
Status: ANSI/VITA 47-2005 (R2007) has been opened for revision to improve interoperability, create less reliance on individual supplier ruggedization guidelines, and make sure environments are concurrent with recent VPX updates. The working group has placed the base document and the following dot standards in the ANSI ballot stage.

Several dots standards have been started to support the original VITA 47.0 standard.

  • VITA 47.1: Defines the requirements common across the family of standards.
  • VITA 47.2: Defines the unique requirements related to products meant to align with the applications defined in IPC J-STD-001, Class 2.
  • VITA 47.3: Defines the unique requirements related to products meant to align with the applications defined in IPC J-STD-001, Class 3. 

VITA 51.4: Reliability Component Derating

Objective: The goal of this study group is to develop a new component derating standard.
Status: The study has been meeting to discuss the scope and outline potential sources of data for this activity. The working group is looking for more participation from VITA members. The working groups encourages industry participation and inputs for determining the appropriate derating considerations, specifically what derating levels your company typically uses.  This would help the working group find consensus derating levels for components that are useful for the industry.

VITA 57.1: FMC, FPGA Mezzanine Card

Objective: This standard describes FMC IO modules and introduces an electro-mechanical standard that creates a low overhead bridge. This is between the front panel IO, on the mezzanine module, and an FPGA processing device on the carrier card, which accepts the mezzanine module.
Status: The ANSI/VITA 57.1-2019 FPGA Mezzanine Card (FMC) Standard was ratified by ANSI and VITA. The standard is available for download by VITA members and is posted at the VITA Store for purchase by non-members.

A new study group has been formed, VITA 57.5 Physical Tools to Aid in FMC+ Development, to define a set of development tools. Interested parties are invited to join this study group.

VITA 62.x: Modular Power Supply Standard

Objective: The VITA 62.0 standard describes requirements for building a power supply module that can be used to power a VPX chas-sis. The modules fit within the standard envelope defined for VPX modules in the VITA 48.0 standards.
Status: The original standard is being revised to be in line with additions made to the VPX standards. Additional working groups are on dot standards. VITA 62.1 is focused on a three-phase high voltage power supply for 3U and VITA 62.2 is develop-ing a 270-volt connector standard. Both working groups have draft documents in review.

VITA 65: OpenVPX Architectural Framework for VPX

Objective: The OpenVPX architectural framework standard is a living document that is regularly updated with new profile information and corrections.
Status: New profiles based on work with Sensors Open Systems Ar-chitecture (SOSA) are being developed. The working group is nearing completion of review for additions, deletions, and changes to the next release.

VITA 66.5: VPX: Optical Interconnect, Spring-Loaded Contact on Backplane

Objective: This document describes an open standard for configuration and interconnect within the structure of VITA 66.0 enabling an interface compatible with VITA 46 containing blind mate optical connectors with fixed contacts on the Plug-In Module and floating displacement on the backplane.
Status: The working group is developing the draft document.

VITA 68.2: VPX: Compliance Channel

Objective: This standard defines a VPX compliance channel including common backplane performance criteria required to support multiple fabric types across a range of defined baud rates. This allows backplane developers to design a backplane that supports required Bit Error Rates (BER) for multiple fabric types. This also allows module developers to design plug-in modules that are interoperable with other modules when used with a compliant backplane.
Status: The working group is updating the draft of this standard.

VITA 74.4: SpaceVNX

Objective: This document leverages the work done on ANSI/VITA 74 to create a standard with an emphasis on VNX in cubesat applications.
Status: The study group is gathering inputs from the user community.

VITA 78.1: SpaceVPX Lite Systems

Objective: This document leverages the work done on ANSI/VITA 78 to create a standard with an emphasis on 3U module implementations. The most significant change from SpaceVPX is to shift the distribution of utility signals from the SpaceUM to the System Controller to allow a radial distribution of supply power to up to eight payload modules.
Status: The working group has developed a draft document of the standard that is currently under review.

VITA 84: Hardware Open System Technology (HOST) Study Group

Objective: The vision of this study group is to create a hardware technical reference framework for developing embedded computing systems through successful development of an overarching HOST strategy to maximize platform and system “openness,” modularity, interoperability, scalability, sustainability, and re-use.
Status: The HOST study group is actively reviewing the draft document and reviewing comments. This is a primary conduit into the SOSA Consortium activities.

VITA 86: High Voltage Input Sealed Connector Power Supply

Objective: This standard defines an environmentally enhanced connector pair, which is compatible with the pinouts as defined in VITA 62.0 for power supplies operating in harsh environments operating off of a high voltage input (270VDC). The connector pair features wider separation between input pins and a sealed connection.
Status: The ANSI/VITA 86-2019 High Voltage Input Sealed Connector Power Supply Standard was ratified by ANSI and VITA. The standard is available for download by VITA members and is posted at the VITA Store for purchase by non-members.

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