Pro Intercom PS3 Battery Adapter

24VDC XLR Battery Operated Power Supply Performance: The PS3 provides the facilities necessary to power your cabled intercom system from batteries. Typically, a pair of 12V batteries are wired in series to provide 24V, then connected to the PS3. Best because of size, weight, and recharge-ability, are computer UPS or motorcycle batteries, but auto or even lantern batteries may be used. Time between recharging will depend upon the num- ber of stations connected, but as an example, a pair of 150 Ampere/Hour batteries would power ten belt packs, with their signal lights constantly On, for over 1000 hours. The front panel contains a pair of binding posts for attachment of the batteries, and a high-quality cir- cuit breaker which acts as the On/Off switch and limits the current which may be drawn by the system from the batteries to a safe 1.0 Amp. Although the binding posts are colored red and black, an internal circuit corrects reverse polarity. The rear panel contains three 3-pin male XLR-