dear sir , i am getting my transition from atr 42-500s to a320s and am using telex 750, i am wanting to buy a20s bose but dont know which ones with the connector plugs are needed, with the telex there wasnt any batteries needed so i went online and saw the panel powered option with the a20s ,any help guys??i dont want to make an investment of 995 and get the wrong plug.
Boeing sockets are not standard fitted with electrical supply, hence batteries are needed.
Airbus sockets are standard fitted with electrical supply in its sockets.