ASCB: Avionics Standard Communications Bus

Authored by: Michael Paulitsch

Industrial Communication Technology Handbook

Print publication date:  August  2014
Online publication date:  August  2014

Print ISBN: 9781482207323
eBook ISBN: 9781482207330
Adobe ISBN:


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ASCB stands for Avionics Standard Communication Bus and is a proprietary communication protocol for the avionics domain of general, business, and regional aviation aircraft. The general aviation market comprises small multiple-seater aircraft, the business aviation market consists of turbo-engine-powered comfortable small aircraft for business clients, and regional aviation aircraft are single-aisle medium-sized aircraft flying regionally with up to about 100 passengers. Honeywell has developed ASCB for fault-tolerant periodic, real-time communication between avionic modules of its Primus Epic® avionics suit deployed in such aircraft. ASCB is the primary bus in Primus Epic. There are multiple ASCB versions available, some standardized [1], the latest being version D (abbreviated ASCB-D). Detailed information on Primus Epic is available in [27].

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