The SWIFT AV bases (WAV-CRL, WAV-CWL, WAV-RL and WAV-WL) are intended for use with compatible System Sensor L-Series AV notification appliances to meet a comprehensive range of notification requirements. The AV Base provides power for the audio and visual signals and supports wireless communication with the Fire Alarm Control Panel (FACP). The L-Series AV notification appliance is mounted directly to the wireless AV base allowing flexibility in color, placement and signal output. Power is supplied through two sets of 4 batteries – one set provides power for wireless communication, and the other set provides power for the notification appliance’s audio and/or visual signal. Battery life of the wireless portion is UL listed for at least 2 years. Battery life for the AV set of batteries depends upon the activation time and output level of the audio or visual signal. The AV base boosts output voltage to support 24VDC options on connected devices.