By splitting.

Figure 4-5.— Orbiter auxiliary power units; initiative for management of Orbiter payload bay. MISCELLANEOUS.

DATA VOICE COORDINATION PAYLOAD COMMAND THROUGH ORBITER/IUS, AIR-TO-GROUND VOICE AIR-TO-GROUND VOICE AIR-TO-GROUND VOICE ORBITER DATA, VOICE COORDINATION PAYLOAD COMMAND THROUGH ORBITER/IUS, AIR-TO-GROUND VOICE PAYLOAD COMMAND THROUGH ORBITER/IUS, AIR-TO-GROUND VOICE PAYLOAD COMMAND AIR-TO-GROUND VOICE ORBITER DATA, VOICE COORDINATION DOMSAT DOMESTIC SATELLITE DSN DEEP SPACE NETWORK GSFC GODDARD SPACE FLIGHT CENTER IUS INERTIAL UPPER.