www.advancedco.com
www.advancedco.com
3
1 Introduction
The Advanced AV-V70 is a universal audio converter that converts any ANSI/UL Listed, maximum 40 Watt, 25Vrms
speaker circuit to a 40 Watt 70Vrms speaker circuit. The AV-V70 includes a 70Vrms Speaker Circuit Interface Card,
an Audio Converter Transformer, an LED Indicator Card and an enclosure. Each AV-V70 enclosure is capable of
supporting two (2) 70Vrms Speaker Circuit Interface Cards and Audio Converter Transformers. In addition to getting
wired to an existing speaker circuit, each 70Vrms Speaker Circuit Interface Card requires power from either the
“Host” fire alarm control panel or from an ANSI/UL Listed 24 VDC nominal power supply.
Note: The power supply power to the AV-V70 70Vrms Speaker Circuit Interface Card must be a 24 VDC
ANSI/UL Listed, regulated and power-limited supply.
Figure 1 – AV-V70 (shown with two (2) 70Vrms Speaker Circuit Interface Cards and Audio Converter Transformers)
Figure 2 – AV-V70 (bottom view with two (2) stacked 70Vrms Speaker Circuit Interface Cards)
