AIR1189 Airborne Internal Interface Standards for Moderate Bit Rate Digital Time Division - Multiplex Systems

AIR4013A Multiplex Data Bus Networks for Mil-Std-1760 Stores

ARP4258 Application of Low Speed Avionic System Discrete Signal Interfaces

AS15531 Digital Time Division Command/Response Multiplex Data Bus

AS4075 High Speed Ring Bus (Hsrb) Standard

AS4075/1 Optical Implementation Relating to the High Speed Ring Bus (Hsrb) Standard

AS4710 Pi-Bus
AS5370 Multi-Transmitter Bidirectional Fiber-Optic Data Bus for Distributed Aircraft Control Systems

AS5643 IEEE-1394b Interface Requirements for Military and Aerospace Vehicle Applications

ARP Standards

ARP4754, Aerospace Recommended Practice (ARP) ARP4754A (Guidelines For Development Of Civil Aircraft and Systems), is a guideline from SAE International, dealing with the development processes which support certification of Aircraft systems, addressing "the complete aircraft development cycle, from systems requirements through systems verification." Revision A was released in December 2010. It was recognized by the FAA in AC 20-174 published November 2011. EUROCAE jointly issues the document as ED–79.

ARP4761, Guidelines and Methods for Conducting the Safety Assessment Process on Civil Airborne Systems and Equipment is an Aerospace Recommended Practice from SAE International. In conjunction with ARP4754, ARP4761 is used to demonstrate compliance with 14 CFR 25.1309 in the U.S. Federal Aviation Administration (FAA) airworthiness regulations for transport category aircraft, and also harmonized international airworthiness regulations such as European Aviation Safety Agency (EASA) CS–25.1309.

FAA Standards Derived from ARP Standards

DO-178B; Software Considerations in Airborne Systems and Equipment Certification, an aviation industry standard since 1992.

DO-178C standard is being worked on for release in 2011.

DO-254; Design Assurance Guidance for Airborne Electronic Hardware, put into effect on FPGA/ASIC designs via AC 20-152 in 2005

DO-297; Integrated Modular Avionics (IMA) Development Guidance and Certification Considerations
EASA; European Aviation Safety

SAE AS6003 TTP Communication Protocol

Backplane Data Bus for Integrated Modular Avionics Backplane Data Bus, operates at 60Mbps as a commercial aviation bus.
SAFEbus architecture, developed by Honeywell is based on ARINC 659 [used on the Boeing 777 aircraft].

MIL-STD-2204 (FDDI), or (SafeNet)

Multi-Transmitter Data Bus. A time division serial data bus which operates over cable at 2Mbps. Developed by Boeing.
ARINC 629 is implemented on the Boeing 777 and some models of the Boeing 737.

Digital Information Transfer System. ARINC 429 is a Point-to-point unidirectional multidrop topology, using 2-wire Bi-Polar twisted-pair wiring, and Return-to-Zero signaling.
ARINC 429 uses 78 Ohm unbalanced shielded twisted pair copper cable connecting up to 20 loads from a single source. The message length is a 32 bit data word. 100K or 12.5K bit rate.
May use Williamsburg Protocol, which transferred blocks of data. Similar to ARINC 575, but being replaced by 629.

ARINC 429 is the phyiscal layer for the Aeronautical Telecommunications Network (ATN), which is the Application layer.
The Transport and Network layer is called the Aircraft Communications Addressing Reporting System (ACARS).
ARINC 429 is used for flight controls on the Boeing 777.

ARINC 818 released in Jan. 07, is a video interface and protocol standard developed for high bandwidth, low latency, uncompressed digital video transmission.
Video systems include: infrared and other wave length sensors, optical cameras, radar, flight recorders, map/chart systems, synthetic vision, image fusion systems, heads-up displays and heads-down multifunction displays, and video concentrators.
ARINC 818 is a point-to-point, 8B/10B encoded serial protocol for transmission of video, audio, and data.

The protocol is packetized, but is video-centric and very flexible, supporting a single link or the transmission of a single stream over a dual link.
For additional information refer to arinc818.com

Spaceborne Fiber Optic Data Bus (SFODB); 1 Gb/s, fiber.
Fiber Optic Data Bus Publications, EO-1

TM-Bus {Test and Maintenance - Bus}. Works in conjunction with the PI-Bus. Adapted by both JIAWG and SAE.

IEEE Std 1149.5-1995 IEEE Standard for Module Test and Maintenance Bus (MTM-Bus) Protocol
Specifies a serial, backplane, test and maintenance bus (MTM-Bus)..... between a Test Control Master and up to 250 Slave modules. The interface has 5 signals:
MTM Clock (MCLK), MTM Control (MCTL), MTM Master Data (MMD), MTM Slave Data (MSD), and MTM Pause Request (MPR).
This specification is used at the Board level while 1149.1 is used at the chip level.

SAE-AS4710; PI-Bus {Parallel Interface - Bus}. Similar to VME structure, uses BTL logic. Avionics Fault-tolerance bus (JAIWG).

Also called ~ Parallel Intermodule - Bus. Provides a 32 bit wide data bus, with a 50MBytes per second transfer rate. Uses a preemptive, priority-based protocol

Search Key Words: JIAWG: Joint Integrated Avionics Working Group, ARINC: Aeronautical Radio Inc.,

ATA: Advanced Tactical Aircraft, ATF:Advanced Tactical Fighter, National Semiconductor app note: AN-725

IEEE 1355.2: SpaceWire, based on the HIC (IEEE-1355) bus, and Low Voltage Differential Signaling (EIA-644).

Also controlled by the European Space Agency, for the ECSS [European Cooperation for Space Standardization].

ECSS-E-50-12 Defines the Mechanical, Electrical, and Protocol. At data rate of 100Mbaud (min.) over a distance of 10 meters

The main SpaceWire page is now listed on the SpaceWire Avionics Bus page.

SpaceWire Serial Point-to-Point Links ECSS-E-50-12; Draft Issue C
SpaceWire Links, Nodes, Routers and Networks ECSS-E-50-12; Draft Issue 2

Connector and pinout per IEEE1355 [shown], which differs from SpaceWire.

ARINC 664
Avionics Full Duplex Switched Ethernet, AFDX Network. Also seen as Avionics Full DupleX Switched Ethernet

ARINC 653 (Avionics Application Standard Software Interface) is a software specification for space and time partitioning in safety-critical avionics real-time operating systems (RTOS). It allows the hosting of multiple applications of different software levels on the same hardware in the context of an Integrated Modular Avionics architecture.

It is part of ARINC 600-Series Standards for Digital Aircraft & Flight Simulators.

SAE AS4074.1 Linear Token Passing Multiplex Data Bus. HSDB; High Speed Data Bus. A fiber optic bus operating at 80 Mbps. Serial bus.
SAE AS4075 HSRB; High-Speed Ring Bus.

ASCB Avionics Standard Communications Bus. A high-speed, bi-directional digital data bus

CSCB Commercial Standard Communications Bus. A high-speed, bi-directional digital data bus

CSDB Commercial Standard Digital Bus. A Low-speed, uni-directional digital data bus based on RS-422 Bus.

CSDB uses a low-speed version of 12,500 bps or a high-speed version of 50k bps.