1-109 Table 1-32.—Sound-Powered Telephone Circuits—Continued CIRCUIT PRIMARY CIRCUITS TITLE SUPPLEMENTARY CIRCUITS (CONTINUED) 20JS4 Weapons liaison officer's circuit 21JS Surface search radar circuit 22JS Long range air search radar circuit 23JS Medium range air search radar circuit 24JS Range height finder radar circuit 25JS AEW radar circuit 26JS Radar  information circuit 31JS Track analyzer No. 1 air radar information check 32JS Track analyzer No. 2 air radar information check 33JS Track analyzer No. 3 air radar information check 34JS Track analyzer No. 4 air radar information check 35JS Raid air radar information circuit 36JS Combat air patrol air radar information circuit 61JS Sonar information circuit 80JS ECM plotters' circuit 81JS ECM information circuit 82JS Supplementary radio circuit JT Target designation control circuit 1JV Maneuvering and docking circuit 2JV Engineers' circuit (engines) X8J Replenishment-at-sea circuit X9J Radar trainer circuit X10J Cargo transfer control circuit X10J1 Cargo transfer circuit-Lower decks X10J10 Cargo transfer  circuit-Upper decks X11J Captain's and admiral's cruising circuit X12J Capstan control circuits X13J Aircraft  crane control circuits X14J Missile handling and nuclear trunk crane circuit X15J SINS information circuit X16J Aircraft elevator circuit X17J 5-inch ammunition hoist circuit X18J Machine gun ammunition hoist circuits X19J Missile component elevator circuit X20J Weapons elevator circuits X21J Catapult circuit X22J Catapult steam control circuit X23J Stores conveyor circuit X24J Cargo elevator circuit X25J Sonar service circuit X26J Jet engine test circuit X28J Dumbwaiter circuit