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What type of cable is used in ARINC 629?(a) Coaxial cable(b) Screened twisted pair(c) Unscreened twisted pair(d) Parallel linesThis question was addressed to me in an online interview.This question is from Fly-By-Wire Technology in chapter Fly by Wire Flight Control of Avionics

Answer»

Correct option is (C) Unscreened twisted pair

Explanation: The ARINC 629 LINKS and bus uses an unscreened twisted pair of wires with a connection to the bus through DEMOUNTABLE current transformer couplers. Mil STD 1553 uses screened twisted pair cables. Parallel LINES are rarely used today.



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