MIL 1553B


  • Portable USB Device
  • Up to 2 Dual Redundant MIL-STD-1553 Channels
  • Supported Configurations are:
    > Stand-Alone BC
    > Stand-Alone RT
    > Stand-Alone MT
  • 16 User programmable DIO`s
  • GPS Synchronization capability (optional)
  • Externally Powered
  • Graphical User Interface Software for Bus Analysis & Simulation
  • MIL-STD-1553 Programmable as Bus Controller or Remote Terminal or Monitor Terminal
  • Direct Coupled or Transformer Coupled
  • Software Driver Support for Windows XP, Windows 7, Windows 10, Linux & RT-Linux

The USB-1553 module is a small, portable, USB device that provides new levels of performance & flexibility for systems interfacing to a MIL-STD-1553 data bus. There are up to two dual redundant MIL-STD-1553 channels operating in BC, RT, MT & RT/MT modes. The device includes the MIL-STD-1553 C API (Application Programming Interface) library & drivers, along with source code samples & detailed documentation. This module is the perfect COTS solution for MIL-STD-1553 data bus systems. Its small size, lightweight & durable construction makes it an ideal choice for use in avionics labs, field service, flight line test equipment & flight instrumentation applications. The USB interface makes it suitable for use with desktop, laptop or tablet computers.


Each 1553 channel can emulate as a Bus Controller (BC), a Remote Terminal (RT) or a Bus Monitor (MT). Standard features include 64KB of RAM per 1553 channel, transformer & direct coupling, triggers, extensive BC & RT frame structures, RT Status Bit & Mode Code responses, along with advanced BC functionality. The advanced BC architecture provides a high degree of flexibility & autonomy by providing message schedule control, minimizing host overhead for asynchronous message insertion, facilitating bulk data transfers, double buffering, message retry bus switching strategies, data logging & fault reporting. The choices of RT buffering & interrupt options provide robust support for synchronous & asynchronous messaging, while ensuring data sample consistency & supporting bulk data transfers. The interface includes a message monitor mode & a combined RT/MT mode where the MT will monitor all 1553 communications on the bus including the 1553 Channel’s assigned RT addresses. The Bus Monitor Mode provides for Selective Message Monitoring & Combined RT/Message Monitor Mode. A combined RT/MT mode allows the device to run in both modes of operation at the same time on the bus.

Discrete I/O

The device includes 16 (digital 5V) discrete that are individually programmable as inputs or outputs (Open/Ground Discrete). The discrete outputs can be used for a variety of purposes, including triggering events, indicating status & general-purpose use.

Stand-Alone Feature

AT-USB-1553 module provides interface between non 1553 compatible device to 1553 bus system & this can be achieved through USB interface. This feature allows the unit to operate in stand-alone mode in either BC or RT or MT. Firmware allows the User to dynamically reconfigure the unit to one of the supported modes.


This USB Avionics Device includes a Bus Monitor Software. Source code provided for samples & detailed documentation. The device comes with a powerful set of library functions to access the entire MIL-STD-1553B functionality. The drivers are designed in a modular fashion consisting of component functions & application functions. The user’s test program can be developed with few calls to the driver by using the set of application functions provided. Driver & high-level API libraries for Windows XP, Windows 7, Linux & RT-Linux are available. Sample programs for BC, RT, MT modes are included.



MIL-STD-1553B Interface

  • Up to Two Dual Redundant MIL-STD-1553 Channels
  • Transformer and Direct Coupled 1553 I/O
  • 64KB RAM per 1553 Channel
  • High Level 1553 C API Software Library Interface
  • BC, RT, MT, RT/MT Operating Modes

1553 Bus Controller

  • Minor and Major Frame Scheduling to Control Timing of 1553 Messages
  • High and Low Priority Asynchronous Message Insertion
  • Modify Messages or Data while BC is running
  • Conditional Messages or Subroutines based on User Defined Conditions
  • Multiple BC retry programmable options
  • Automatic retries on alternate Bus
  • Inter-message gap times up to 65.5ms
  • Programmable response timeout up to 130us
  • GPS synchronization of Bus Controller (optional)

1553 Remote Terminal

  • Choice of Sub-address Single Message, Double Buffering, Circular Buffering or Global Circular Buffering
  • Stack with Descriptors for Individual Messages
  • Message Status, Time Tag, Command Word, Data Words
  • Programmable Command Illegalization
  • Programmable Busy by Sub-address
  • Software-Programmable RT Address
  • Busy Bit programmable by Sub address
  • Alpha numeric Message ID

1553 Monitor Terminal

  • Selective Message Monitor and Word Monitor
  • Filter Based on RT Address, T/R bit, Sub-address Message Status, Time Tag, Command Word, Data Words
  • Simultaneous RT/Message Monitor Option
  • Dynamic Data Update
  • Bus Error Status
  • Bus Load
  • Unique Message Identifier
  • Message periodicity
  • Record and Replay option
  • GPS synchronization (optional)

GPS Receiver (optional) for Synchronization

  • GPS receiver on-board for synchronization
  • Synchronization control through software
  • Synchronization of on-board time tag counters with GPS time
  • Separate GPS antenna provided along with the unit

Software Support

  • Driver & high-level API libraries for Windows XP, Windows 7 / Windows 10 – 32 bit and 64 bit, Linux & RT-Linux
  • Sample Applications provided to help users quickly setup & use the card


  • Durable Enclosure with covers for 1553 connectors


  • Operating temperature: 0° C to +50° C
  • Storage temperature: -20° C to +70° C


  • +5V External Powered through Adapter


  • 1 year limited warranty
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