Browse Standards AIR4013A
Historical Reaffirmed 1998-01-01

Multiplex Data Bus Networks for Mil-Std-1760 Stores AIR4013A

This SAE Aerospace Information Report (AIR) will exame network aspects of open and shorted stubs, line reflections and bus loading due to network changes. Single network level is assumed, that is, no carriage store hierarchical levels. However, two passive network coupling variants called 'branched bus' and 'branched stub' will will be introduced that possibly could be used in a stores management netowrk. This report assumes familiarity with MIL-STD-1553B. This document summarizes the results of hardware tests on simulated weapon data bus networks utilizing MIL-STD-1760. Unique to this application is the fact that the network is reconfigurable by connecting together mission dependent MIL-STD-1553B store remote terminals (RT)s at artificial network breakpoints. Further, during normal data bus operation the weapon RTs are physically removed from the network. That is, in-flight weapon separation from aircraft results in 'open' stubs' on the bus network. All this gives rise to changing network conditions, stubs exposed to harsh environments (such as during rocket motor firing), noise interference, interoperable store requirements for US/NATO military services and controversy about the effect of 'open stubs' on bus performance.
AIR4013C
2012-08-22
Latest
Stabilized
AIR4013
2011-08-10
Historical
Reaffirmed
AIR4013B
2005-09-29
Historical
Revised
AIR4013A
1998-01-01
Historical
Reaffirmed

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