MIL-STD-1553 Interfaces

Lx1553-5 - PCI & PCIe Avionics Interface Cards for MIL-STD-1553

LP1553-5 (PCI) / LE1553-5 (PCI Express)

The LP1553-5 (PCI) and LE1553-5 (PCIe) are personal computer expansion cards for communicating with MIL-STD-1553 systems. These feature-rich interfaces provide programmable data buffers and deep built-in memory. Models offer 1 to 4 dual redundant MIL-STD-1553 channels, 16 input/output avionics level discretes, and IRIG time synchronization/generation. MIL-STD-1553 capability includes BC, RT, and/or Monitor. Avionics discretes can be used as general purpose I/O or linked in hardware to 1553 databus activity as triggers or syncs.

The Lx1553-5 model line supports maximum data throughput on all 1553 interfaces. Each channel is independently configurable as Bus Controller, Remote Terminal(s), and/or Bus Monitor. Messages can be captured by a sequential monitor for all channels, or via RT map monitoring. Notification of databus activity is handled through the on-board Event Log, which can be processed by polling or via an interrupt. To dramatically reduce the host CPU processing, the sequential monitor has a DMA mode that automatically moves records to host memory through PCI/PCIe bus mastering.

Astronics Lx1553-5

Key Features

  • 1 to 4 dual-redundant MIL-STD-1553 channels
  • Single-function or multi-function Single-function: BC or RT(s) or monitor Multi-function: BC and RT(s) and monitor
  • IRIG & 16 Avionics discrete I/O
  • Large 32 MB on-board memory
  • 48 bit, 1 uSec hardware time-tagging
  • All power drawn from backplane (no auxiliary cabling required)
  • RoHS compliant design
  • Translation DLL for application conversion
  • CoPilot® databus analyzer software available


The Lx1553-5 products are half size compliant cards. Avionics transition cabling is available from the unit's I/O connectors to standard 1553 cable connections. The universal PCI or PCI Express interfaces available make the Lx1553-5 compatible with virtually all modern desktop, rackmount, and server computers.


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Avionics Interfaces

  • 1 to 4 MIL-STD-1553 dual-redundant channels 
  • Channels are dual redundant, bus A and bus B
  • Single-function channels are software configurable as BC, 31 RTs, or Bus monitor
  • Multi-function channels are software configurable as BC, 31 RTs and Bus Monitor
  • Channels support transformer or direct coupling with jumper-selectable on-board termination

Standard Features

  • Memory: 32 MB on-board memory
  • DIO: 16 avionics level inputs/outputs
  • IRIG: A or B, AM, PWM and PPS modes


  • Size: 6.9 x 4.2 in. (both PCI and PCIe)
  • Weight: 4.55 oz


Ordering Information

For more information or to request a quote, call +1.425.339.0281 or complete the form above.