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Standard

AIRBORNE INTERNAL INTERFACE STANDARDS FOR MODERATE BIT RATE* DIGITAL TIME DIVISION-MULTIPLEX SYSTEMS

1991-08-01

HISTORICAL

AIR1189

All electrical and electronic signals within an aircraft are potential candidates for multiplexing, although the determination of whether or not they are multiplexed is a matter for individual system consideration. However, those signals that are selected for multiplexing preferably should conform to the characteristics included in this AIR.

Standard

A Primer of Aircraft Multiplexing

1991-08-01

CURRENT

AIR1207

Today's sophisticated aircraft are required to effectively perform a variety of missions. With the advent of micro-miniaturization in electronics and advanced digital computers, a new generation of avionics equipment and systems can be utilized to increase the capabilities of the aircraft. As the quantity and variety of equipment and functions increases, the problems of inter-connecting these equipments with wires presents a constraint on size, weight, signal conditioning, reliability, maintainability and electromagnetic control. Conventional wiring has resulted in large bundles of wires and many connectors which adds excessive weight and reduces the space available for the pilot and other vital elements. This limitation can be relieved significantly by the application of well proven multiplexing techniques.

Standard

APPLICATION OF LOW SPEED AVIONIC SYSTEM DISCRETE SIGNAL INTERFACES

1990-10-25

HISTORICAL

ARP4258

The purpose of this Aerospace Recommended Practice (ARP) is to provide recommendations on the use of four types of discrete signal interfaces for unidirectional, low power, low frequency transmission of discrete information.

Standard

Optical Implementation Relating to the High Speed Ring Bus (HSRB) Standard

2012-05-03

CURRENT

AS4075/1A

This SAE Aerospace Standard (AS) has been prepared by the Ring Implementation Task Group of the SAE AS-2 Committee. It is intended as a companion document to the SAE AS4075 High Speed Ring Bus Standard. While the Standard is intended to provide as complete a description as possible of an HSRB implementation, certain parameters are system-dependent and evolutionary. This document contains those parameters. The text through Table 1 is intended to provide definitions and descriptions applicable to all applications. Table 2 contains specific parameter values for one or more implementations. This table will change as new systems are implemented or new HSRB speed options are defined.

Standard

OPTICAL IMPLEMENTATION RELATING TO THE HIGH SPEED RING BUS (HSRB) STANDARD

1995-01-01

HISTORICAL

AS4075/1

This SAE Aerospace Standard (AS) has been prepared by the Ring Implementation Task Group of the SAE AS-2 Committee. It is intended as a companion document to the SAE AS4075 High Speed Ring Bus Standard. While the Standard is intended to provide as complete a description as possible of an HSRB implementation, certain parameters are system-dependent and evolutionary. This document contains those parameters. The text through Table 1 is intended to provide definitions and descriptions applicable to all applications. Table 2 contains specific parameter values for one or more implementations. This table will change as new systems are implemented or new HSRB speed options are defined.

Standard

High Performance 1553 Research and Development

2016-10-21

CURRENT

AIR5683A

MIL-STD-1553 establishes requirements for digital command/response time division multiplexing (TDM) techniques on military vehicles, especially aircraft. The existing MIL-STD-1553 network operates at a bit rate of 1 Mbps and is limited by the protocol to a maximum data payload capacity of approximately 700 kilobits per second. The limited capacity of MIL-STD-1553 buses coupled with emerging data rich applications for avionics platforms plus the expense involved with changing or adding wires to thousands of aircraft in the fleet has driven the need for expanding the data carrying capacity of the existing MIL-STD-1553 infrastructure.

Standard

High Performance 1553 Research and Development

2011-11-15

HISTORICAL

AIR5683

MIL-STD-1553 establishes requirements for digital command/response time division multiplexing (TDM) techniques on military vehicles, especially aircraft. The existing MIL-STD-1553 network operates at a bit rate of 1 Mbps and is limited by the protocol to a maximum data payload capacity of approximately 700 kilobits per second. The limited capacity of MIL-STD-1553 buses coupled with emerging data rich applications for avionics platforms plus the expense involved with changing or adding wires to thousands of aircraft in the fleet has driven the need for expanding the data carrying capacity of the existing MIL-STD-1553 infrastructure.

Standard

Digital Time Division Command/Response Multiplex Data Bus

2017-03-21

CURRENT

AS15531A

This SAE Aerospace Standard (AS) contains requirements for a digital time division command/response multiplex data bus, for use in systems integration, that is functionally equivalent to MIL-STD-1553B with Notice 2. Even with the use of this document, differences may exist between multiplex data buses in different system applications due to particular application requirements and the options allowed in this document. The system designer must recognize this fact and design the multiplex bus controller (BC) hardware and software to accommodate such differences. These designer selected options must exist to allow the necessary flexibility in the design of specific multiplex systems in order to provide for the control mechanism, architectural redundancy, degradation concept, and traffic patterns peculiar to the specific application requirements.

Standard

Digital Time Division Command/Response Multiplex Data Bus

2011-11-15

HISTORICAL

AS15531

This SAE Aerospace Standard (AS) contains requirements for a digital time division command/response multiplex data bus, for use in systems integration, that is functionally equivalent to MIL-STD-1553B with Notice 2. Even with the use of this document, differences may exist between multiplex data buses in different system applications due to particular application requirements and the options allowed in this document. The system designer must recognize this fact and design the multiplex bus controller (BC) hardware and software to accommodate such differences. These designer selected options must exist to allow the necessary flexibility in the design of specific multiplex systems in order to provide for the control mechanism, architectural redundancy, degradation concept, and traffic patterns peculiar to the specific application requirements.

Standard

Test Plan/Procedure for AS5643 IEEE-1394b Interface Requirements for Military and Aerospace Vehicle Applications

2013-10-22

WIP

AS5657A

This document establishes test plans/procedures for the AS5643 Standard that by itself defines guidelines for the use of IEEE-1394b as a data bus network in military and aerospace vehicles. This test specification defines procedures and criteria for testing device compliance with the AS5643 Standard.

Standard

Linear Token Passing Multiplex Data Bus

2017-02-21

CURRENT

AS4074B

This standard specifies the characteristics of the SAE Linear Token Passing Bus (LTPB) Interface Unit. The LTPB provides a high reliability, high bandwidth, low latency serial interconnection network suitable for utilization in real time military and commercial applications. Multiple redundant data paths can be implemented to enhance reliability and survivability in those applications which require these attributes. The token passing and data exchange protocols are optimized to provide low latency and fast failure detection and correction. Physical configurations with bus lengths up to 1000 m can be accommodated.

Standard

Type F-2 Fiber Optic Media Interface Characteristics

2011-11-15

HISTORICAL

AS4074/2A

This slash sheet specifies the operational parameters and characteristics of a particular implementation of the SAE Linear, Token Passing Bus (LTPB) Interface Unit. This slash sheet defines the following: a The physical media interface: This slash sheet specifies the characteristics of the optical interface to the physical bus media. b The minimum and maximum timing requirements for operation of this implementation of the LTPB. c The data coding used to encode and decode the data for transmission. d The default values to be loaded into the timers of the LTPB interface at power-up prior to intervention by the host processor.

Standard

Type F-2 Fiber Optic Media Interface Characteristics

2016-10-21

CURRENT

AS4074/2B

This slash sheet specifies the operational parameters and characteristics of a particular implementation of the SAE Linear, Token Passing Bus (LTPB) Interface Unit. This slash sheet defines the following: a The physical media interface: This slash sheet specifies the characteristics of the optical interface to the physical bus media. b The minimum and maximum timing requirements for operation of this implementation of the LTPB. c The data coding used to encode and decode the data for transmission. d The default values to be loaded into the timers of the LTPB interface at power-up prior to intervention by the host processor.

Standard

Type F-1 Fiber Optic Media Interface Characteristics

2016-10-21

CURRENT

AS4074/1B

This slash sheet specifies the operational parameters and characteristics of a particular implementation of the SAE Linear, Token Passing Bus (LTPB) Interface Unit. This slash sheet defines the following: a The physical media interface: This slash sheet specifies the characteristics of the optical interface to the physical bus media. b The minimum and maximum timing requirements for operation of this implementation of the LTPB. c The data coding used to encode and decode the data for transmission. d The default values to be loaded into the timers of the LTPB interface at power-up prior to intervention by the host processor.

Standard

Type F-2 Fiber Optic Media Interface Characteristics

2001-10-01

HISTORICAL

AS4074/2

This slash sheet specifies the operational parameters and characteristics of a particular implementation of the SAE Linear, Token Passing Bus (LTPB) Interface Unit. This slash sheet defines the following: a The physical media interface: This slash sheet specifies the characteristics of the optical interface to the physical bus media. b The minimum and maximum timing requirements for operation of this implementation of the LTPB. c The data coding used to encode and decode the data for transmission. d The default values to be loaded into the timers of the LTPB interface at power-up prior to intervention by the host processor.

Standard

Type E-1 Electrical Media Interface Characteristics

2016-10-21

CURRENT

AS4074/3B

This slash sheet specifies the operational parameters and characteristics of a particular implementation of the SAE Linear, Token Passing Bus (LTPB) Interface Unit. This slash sheet defines the following: a The physical media interface: This slash sheet specifies the characteristics of the electrical interface to the physical bus media. b The minimum and maximum timing requirements for operation of this implementation of the LTPB. c The data coding used to encode and decode the data for transmission. d The default values to be loaded into the timers of the LTPB interface at power-up prior to intervention by the host processor.

Standard

Type E-1 Electrical Media Interface Characteristics

2001-10-01

HISTORICAL

AS4074/3

This slash sheet specifies the operational parameters and characteristics of a particular implementation of the SAE Linear, Token Passing Bus (LTPB) Interface Unit. This slash sheet defines the following: a The physical media interface: This slash sheet specifies the characteristics of the electrical interface to the physical bus media. b The minimum and maximum timing requirements for operation of this implementation of the LTPB. c The data coding used to encode and decode the data for transmission. d The default values to be loaded into the timers of the LTPB interface at power-up prior to intervention by the host processor.

Standard

Type F-1 Fiber Optic Media Interface Characteristics

2001-10-01

HISTORICAL

AS4074/1

This slash sheet specifies the operational parameters and characteristics of a particular implementation of the SAE Linear, Token Passing Bus (LTPB) Interface Unit. This slash sheet defines the following: a The physical media interface: This slash sheet specifies the characteristics of the optical interface to the physical bus media. b The minimum and maximum timing requirements for operation of this implementation of the LTPB. c The data coding used to encode and decode the data for transmission. d The default values to be loaded into the timers of the LTPB interface at power-up prior to intervention by the host processor.

Standard

Type F-1 Fiber Optic Media Interface Characteristics

2011-11-15

HISTORICAL

AS4074/1A

This slash sheet specifies the operational parameters and characteristics of a particular implementation of the SAE Linear, Token Passing Bus (LTPB) Interface Unit. This slash sheet defines the following: a The physical media interface: This slash sheet specifies the characteristics of the optical interface to the physical bus media. b The minimum and maximum timing requirements for operation of this implementation of the LTPB. c The data coding used to encode and decode the data for transmission. d The default values to be loaded into the timers of the LTPB interface at power-up prior to intervention by the host processor.

Standard

Linear Token Passing Multiplex Data Bus

1993-12-01

HISTORICAL

AS4074

This standard specifies the characteristics of the SAE Linear Token Passing Bus (LTPB) Interface Unit. The LTPB provides a high reliability, high bandwidth, low latency serial interconnection network suitable for utilization in real time military and commercial applications. Multiple redundant data paths can be implemented to enhance reliability and survivability in those applications which require these attributes. The token passing and data exchange protocols are optimized to provide low latency and fast failure detection and correction. Physical configurations with bus lengths up to 1000 m can be accommodated.