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FTF

4 Channels, MIL-STD-1553, Dual Redundant, Direct Coupled, Assisted Mode Capable (AMC)

MIL-STD-1553 is a military standard published by the United States Department of Defense that defines the mechanical, electrical, and functional characteristics of a serial data bus. It was originally designed for use with military avionics, but has also become commonly used in spacecraft On-Board-Data-Handling (OBDH) subsystems, both military and civil. It features a dual, redundant, balanced-line, physical layer; a (differential) network interface; time division multiplexing; half-duplex command/response protocol; and up to 31 remote terminals (devices).

Module FTF provides programmable 1, 2 or 4-channels dual-redundant, direct-coupled interfaces.

The FTA-FTF function modules are the improved assisted mode versions of the legacy FT1-FT6 functions and is the choice for all new programs. View our FTA-FTF MIL-STD-1553 Assisted Mode Product Improvement.

View the archived legacy function module information & documentation here: FT1-FT6

Features
  • Independent (dual-redundant) interface channels: Bus Controller (BC), Remote Terminal (RT), and Bus Monitor (BM) operation
  • Support for RT and BM combination
  • 64 words on-board memory/channel
  • IP-core register-compatible with DDC™ family of devices
  • Automatic message return supported
  • Automatic message retry
  • Multiple message processing
  • Hardware acceleration for rapid setup/message Tx/Rx

Specifications
  • Number of Channels: 4 Direct-Coupled Channels
  • IP Core: DDC® core register compatible/hardware acceleration for rapid setup, transmission, and/or reception of packets.
  • Onboard RAM: 64 K words onboard memory per channel
  • Operational Modes: Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT
  • Output Signal: 28 Vp-p, as per MIL-STD-1553
  • Power: 5 VDC @ 900 mA estimated at 100% duty cycle (1 channel)
  • Weight: 1.5 oz. (42 g)
Block Diagram

(Click diagram to enlarge)

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NAI’s Configurable Open Systems Architecture™ (COSA®) offers a choice of over 70 smart I/O, communication, and Ethernet switch functions, providing the highest packaging density and greatest flexibility of any multifunction I/O board in the industry. Preexisting, fully-tested functions can be combined quickly and easily in an unlimited number of ways. Each I/O function has dedicated processing, unburdening the system Single Board Computer (SBC) from unnecessary data management overhead.

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