ARINC PART 7. Product Overview. Avionics Interface Technologies. N. th Street. Omaha, NE Tel: +1 Fax: +1 AIT’s ARINC test instruments can be used in test and simulation applications that are required to transmit and receive data over the ARINC avionics. Introduction. “Avionic Full-Duplex Switched Ethernet” (AFDX), designated. ARINC , is a specification for a deterministic aircraft data network bus for.

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This ADN arijc without the use of a bus controller thereby increasing the reliability of the network architecture. In addition, AFDX can provide quality of service and dual link redundancy. Each switch has filtering, policing, and forwarding functions that should be able to process at least VLs.

The six primary aspects of an AFDX data network include full duplexredundancy, determinism, high speed performance, switched and profiled network. Basing on standards from the IEEE Views Read Edit View history. There is no specified limit to the number of virtual zrinc that can be handled by each end system, although this will be determined by the BAG rates and maximum frame size specified for each VL versus the Ethernet data rate. Each virtual link is allocated dedicated bandwidth arrinc of all VL bandwidth allocation gap BAG rates x MTU] with the total amount of bandwidth defined by the system integrator.

Avionics Full-Duplex Switched Ethernet

Ethernet family of local area network technologies. AFDX extends standard Ethernet to provide high data integrity and deterministic timing. Further a redundant pair of networks is used to improve the system integrity although a virtual link may be configured to use one or the other network only.


There can be one or more receiving end systems connected within each virtual link. Office for Harmonization in the Internal Market. This type of network can significantly reduce wire runs and, thus, the overall weight of the aircraft.

The switch must also be non-blocking at the data rates that are specified by the system integrator, and in practice this may mean that the switch shall have a switching capacity that is the sum of all of its physical ports. The architecture adopted by AgustaWestland is centered around the AFDX data network developed for the arnic commercial airliners.

Sub-virtual links are assigned to a particular virtual link.

ARINC Test Instruments | A/AFDX Products | Aircraft Data Networks

Each VL is frozen in specification to ensure that the network has a designed maximum traffic, hence determinism. ARINC utilizes a unidirectional bus with a single transmitter and up to twenty receivers. AgustaWestland asserts its independence in qrinc cockpit”. Also the switch, having a VL configuration table loaded, can reject any erroneous data transmission that may otherwise swamp other branches of the network.

AFDX is a worldwide registered trademark by Airbus. The virtual link ID is a bit unsigned integer value that follows a constant bit field. Innovating together for the A XWB”. A similar implementation [ clarify ] of deterministic Ethernet arnc used on the Boeing Dreamliner. In one abstraction, it is possible to visualise the VLs as an ARINC style network each with one source and one or more destinations.


Webarchive template wayback links CS1 maint: Through the use of twisted pair or fiber optic cables, full-duplex Ethernet uses two separate pairs or strands for transmitting and receiving the data. The switches are designed to route an incoming frame from one, and only one, end system to a predetermined set of end systems. Aarinc Wikipedia, the free encyclopedia.

However, the number sub-VLs that may be created in a single virtual link is limited to four. Archived from the original PDF on This page was last edited on 10 Novemberat ARINC operates in such a way that its single transmitter communicates in a point-to-point connection, thus requiring a significant amount of wiring which amounts to added weight. Archived copy as title All Wikipedia articles needing clarification Wikipedia articles needing clarification from September AFDX was designed as the next-generation aircraft data network.

Data are read in a round-robin sequence among the virtual links with data to transmit. Real-time solution on the A” PDF. However, some features of a real AFDX switch may be missing, such as traffic policing and redundancy functions.