ARINC Specification 485, Part 2 specifies the ARINC 485-control protocol used by the LRUs described in ARINC Specification 628 Part 2. This document defines a multi-drop bus. The point-to-point configuration is also supported. The point-to-point bus is treated simply as a multi-drop bus with only one drop. There is one master LRU and one or more slave LRUs present on the bus. However; multiple buses may be connected in parallel, where each parallel bus operates independently from each other.
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CABIN EQUIPMENT INTERFACES PART 2 CABIN MANAGEMENT AND ENTERTAINMENT SYSTEM - SEAT INTERFACES
ARINC628P2-9
DEFINITION OF STANDARD INTERFACES FOR GALLEY INSERT (GAIN) EQUIPMENT PHYSICAL INTERFACES
ARINC810-5
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