Dual, 3 Stubs MIL-STD-1553 Coupler, PC Bracket

Part: CPLR1553STL-06-PC   Model: Dual Stub 1553 Coupler

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The CPLR1553STL-06 is a dual, three stub MIL-STD-1553 coupler with optional internal termination. The coupler is designed to provide 3 stubs with termination for bus A, another for B, or concatenated to a single 6 stub coupler for a single bus. The coupler offers a unique, innovative low profile mechanical structure that supports panel mounting, as well as installation in PCI or 3U cPCI (PXI) enclosures. This feature enables denser and optimized organization of rack-mounted testers. All connections and termination are enabled via a standard DB25F connector. When termination is engaged, an LED lights up during live messaging, reflecting bus activity and utilization.

The dual 3-stub coupler connects via the pins of the single DB25F connector. The upper row, pins 1 through 13, connects to the high-side of the MIL-STD-1553 wires. The lower row connects with the complementary wires of the MIL-STD-1553 bus. If a single 6-stub coupler is required, use a jumper to connect pins 6 and 8, as well as pins 19 and 20. For all configurations, only one termination is required at the end of the coupler for proper MIL-STD-1553.

This coupler is mounted to a standard PC bracket. The coupler only utilizes a back panel location and does not interface with internal system slots. The coupler is also available mounted to a standard 3U bracket (Item# CPLR1553STL-06-PXI) for integration inside a cPCI or PXI enclosure, or as a base model, ready for panel mounting (Item# CPLR1553STL-06-PNL).

Sealevel is the licensed partner of Sital Technologies, Kfar-Saba, Israel, for distribution in the United States of Sital MIL-STD-1553 products and IP core products.


Additional information



Feature Summary:

  • Can be configured as a single 6-Stub coupler
  • MIL-PRF 21038/27 Internal Transformers
  • Excellent performance encapsulating new technologies
  • Unique PCI or cPCI Rack Assemblies Fitting
  • Flexible Mechanical support for other rack assembly Fitting
  • Lower system cost – saves wires & Triax plugs
  • Low profile & Light Weight
  • LED activity indication per terminated coupler
  • Overmold material is black TPU90 Shore A
  • Epoxy casting and finish for lifetime support


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