MIL-STD-1553B Digital Data Bus Applications
Twinax /Triax connectors are used in military applications to protect data signals from extraneous noise through nonsignal-
carrying shielding. Interfacing connectors must provide contact surfaces isolated from each other and from their
outer shields. MIL-STD-1553B addresses twinax applications for computerized/multiplexed digital data distribution
systems servicing the many functions of Command, Control, Communications, Computers and Intelligence (C4I) which
was originally designed for military aircraft. MIL-STD-1553B applications are found in military surface ships, battle
tanks, helicopters, missiles, space vehicles, combat aircraft and in many ground applications such as data networks and
perimeter security for airports, armories, and other government installations.
The great advantages of additional information, automation and weight savings, which are necessary for the complex
demands of aircraft operations are realized by using a single transmission cable instead of the complicated, heavy,
dedicated multiple cable used in the past. A 78Ω twinax cable was selected to provide the transmitted digital information
with the needed protection from magnetic, electrostatic and electromagnetic pulse (EMP) interference. Complete
shielding of the twisted pair along the transmission path and all electrical contacts within multi-pin connectors must be
maintained.
Trompeter provides matching components of Twinax/Triax connectors and cable for improving the transmission
capabilities and interference rejection of data transmission systems. Trompeter components will meet or exceed MILSTD-
1553B requirements (for airborne and ground checkout) and MIL-STD-1760 "External Stores".