Introduction to the MIL-STD-1553B Serial Multiplex Data Bus

摘要

MIL-STD-1553B is the latest issue of a series of serial, digital multiplex data bus standards first developed for use in military aircraft avionic systems in the early 1970s by the USAF. It has now become one of the most widely used data bus systems for real time weapon system applications throughout the USA and Europe and is the subject of International standardization, in the UK as DEF-STAN 00-18/(PART 2) and in NATO as STANAG 3838. The MIL-STD-1553B standard defines an asynchronous, time division, serial multiplex data bus using a command/response protocol in a half duplex manner. The basic signalling rate is 1 Mbit/s using Manchester bi-phase coding on an electrical bus medium consisting of a twisted shielded pair cable terminated resistively at each end. Terminals are connected in a multi-drop configuration from the bus medium using stubs (up to 20 ft in length) and transformer coupling. A typical system would consist of two buses (dual redundant configuration), a single bus controller and up to 31 addressable remote terminals which interface the bus to the user sub-systems. Keywords: Great Britain; System engineering. (KR)