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). A version of MIL-STD-1553 using optical cabling in place of electrical is known as MIL-STD-1773.

MIL-STD-1553 was first published as a U.S. Air Force standard in 1973, and first was used on the F-16 Falcon fighter aircraft. Other aircraft designs quickly followed, including the F-18 Hornet, AH-64 Apache, P-3C Orion, F-15 Eagle and F-20 Tigershark. It now is widely used by all branches of the U.S. military and has been adopted by NATO as STANAG 3838 AVS. MIL-STD-1553 is being replaced on some newer U.S. designs by IEEE 1394. The Russian made MiG-35 also uses MIL-STD-1553.

Read more about MIL-STD-1553:  Revisions, Physical Layer, Bus Protocol, Conceptual Description, Bus Hardware Characteristics, Development Tools

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