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What is MIL-STD-1553? An Introduction

Intro to Military Standard 1553 | Acromag Solutions Video

This video will give you an understanding of U.S. Military and NATO standard communications network MIL-STD-1553. MIL-STD-1553 is a digital internal time division command/response multiplex data bus. It’s a military standard which has become one of the basic tools used by the U.S. Department of Defense for integration of weapon systems.

The Standard describes the method of communication and the electrical interface requirements for subsystems connected to the data bus. Since its introduction, MIL-STD-1553 applications have extended to systems integration of flight controls, propulsion controls, and vehicle management (electrical, hydraulic, environmental control, etc.)

MIL-STD-1553 Is A U.S. Military Standard, As Well As A NATO Standard

  • First Published by the USAF In 1973, first installed in an F-15 fighter
  • The Standard Defines a Communications Network Used Mostly in Military Vehicles. 
  • It’s a Differential Serial Bus with Some Similarities to CAN
  • MIL Standard 1553 Bus Operates at a Fixed One Megabit Per Second Rate.

Dual-Redundant Data Bus Has 3 Types Of Nodes

  1. Bus Controller
  2. Remote Terminal
  3. Bus Monitor

Each node is connected to each of the redundant buses; so if one bus fails, communications can continue on the other working bus.

MIL-STD-1553 Has 5 Different Message Types

  1. Received Data
  2. Transmit Data
  3. Broadcast Data
  4. Mode Code
  5. Remote Terminal to Remote Terminal Transfer

Messages consist of one or more 16-bit word command status, or data; and each word is preceded by a three-microsecond sync pulse, followed by an odd parity bit.

The Standard Is Common In Many Applications

  • Tanks
  • Submarines
  • Ship Control Centers
  • Missile System Testing
  • Air Traffic Control System Testing
  • On-Board Aircraft System Monitoring
  • Aircraft Simulators
  • Satellite Test Systems
  • International space station

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Acromag is an international corporation that combines more than 60 years of process monitoring and control experience with a solid background in high-tech computer design to provide you with Embedded Computer Solutions, Process Automation, and more.

Established in 1957, Acromag built its reputation designing critical measurement instrumentation equipment for the petrochemical and aerospace industries. Acromag, Inc. was soon recognized internationally as a leading designer of analog and digital control products for the industrial I/O market. Products include rugged embedded computers, Industry Pack (IP) modules, processor mezzanine modules, PMC & XMC FPGA mezzanine modules, mini PCI express based interface I/O boards, PCI express based interface I/O boards, reconfigurable FPGA modules & boards, compactPCI (cPCI) boards, rugged type 6 COM express modules, industry pack and mezzanine I/O modules for VME, PCI and compact PCI xystems, real-time control systems and more.

Acromag’s years of experience in designing industrial I/O have given us a clear understanding of the problems associated with industrial measurement and control. Solutions to ground loops, RFI/EMI noise, and temperature drift are designed into every product to assure precise operation in hostile environments. Many products are available with agency approvals such as UL, cUL, FM, CSA, CE, ATEX, and others.


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