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Standards Updates

The September 2019 VITA Standards Organization (VSO) standards’ meeting was held in Dayton, Ohio. 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Status: This standard was withdrawn several years ago.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 document was submitted for ANSI approval. Comments have been resolved and resubmitted to the voters for final approval.

VITA 46.30: VPX: Higher Data Rate

Objective: The VITA 46.30 standard defines a standard for a VPX connector 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.
Status: This document has been approved by the working group and submitted for ANSI ballot.

VITA 46.31: VPX: Higher Data Rate, Solder Tail

Objective: The VITA 46.31 standard defines a standard for a VPX connector that supports higher data rates, to at least 25 Gbaud – for protocols such as 100GBASE-KR4 Ethernet and PCIe Gen 4. The connectors feature a short solder tail intended to be soldered into a blind via. The higher data rate connectors compliant to VITA 46.31 are intermateable with legacy VITA 46.0 connectors and follow the same form factor.
Status: This document has been approved by the working group and submitted for ANSI ballot.

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: The ANSI/VITA 47.x-2019 standards were recently ratified by ANSI and VITA. The standards are available for download by VITA members and is posted at the VITA Store for purchase by non-members.

  • VITA 47.0: Construction, Safety, and Quality for Plug-In Modules Standard. 

ANSI/VITA 47.1, .2, and .3 replace the original ANSI/VITA 47.0 standard. They were rewritten to expand the requirements covered and for readability. Please use these going forward. 
  • VITA 47.1: Defines the common requirements for Environments, Design and Construction, Safety, and Quality for VITA 47 Plug-In Modules.
  • 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 48.xx: VPX REDI: cooling

Objective: The VITA 48.xx VPX REDI standards define various cooling schemes for VPX.
Status: The standards are open for revisions. The documents have completed public ANSI/VITA review and are in the comment resolution phase.

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 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 chassis. 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 developing 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 Architecture (SOSA) are being developed. The document is in ANSI/VITA public ballot.

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 66.6: VPX: Optical Interconnect, Half-Width MT Variant, Spring-Supported Ferrules in Both Backplane and Plug-In Module Connectors

Objective: This document describes an open standard for configuration, and within the VITA 66 family of blind-mate fiber optic interconnects, half-width connector modules for two or more MT ferrules, where the connector modules on both the backplane and plug-in module contain spring-supported MT ferrules, enabling an interface compatible with the ANSI/VITA 46.0 Baseline Standard and the VITA 65.0 OpenVPX System Standard.
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 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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