Rear Audio Separation Module (RAS)

Fig 1: Rear Audio Separation Module (RAS)

Courtesy of VOLVO CARS CORPORATION

The rear audio separation module (RAS) (16/122) is a unit with dual functions. The first is the production of continual infrared signals for the wireless headphones (audio is in headphone mode as standard) via the IR transmitter (16/125). The second is integration with the vehicle's rear speakers 16/5, 16/6, 16/57, 16/58 (XC90)) for media selection.

When the unit is in standard mode, audio signals are sent from the front audio system to the rear speakers. When selected using the remote control, the rear audio separation module (RAS) is activated and audio signals from the front audio system are replaced with audio signals from the rear seat entertainment system. In rear seat entertainment system mode, media signals for the right or left screen can be selected via the remote control.