.U. (Digital Interface Unit) with suppliers rack on shelf adjacent to ATC-1 Transponder in A 6 E Bey, R/Ii Side. (80 @ Ste 463) V. Iostalled 2 amp Elixon CB on-forward end of 02'Essential Radio Bus CB.Panel, Left sideofcockpit. (Ste 26)) . Installed wiring and associated hardware, connectors, etc. (4i