HANDSET CANNEL ASE SYS HS CN ] AN HANDSET CHANNEL CD TO AUDIO PANEL ASE SYS RS232 OCT, O TO 1.5.23.2 DATA TERMNAL TO NRCRAFt PMER (28 We) AtrotArr FUSELAGE Figure 2.1-1 Block Diagram of ST 3100 ASE System Note: Each 'Handset Channel' listed above is capable of supporting up to 3 ASE handset