Paradox PS817-P2C 1.75A Switching Power Supply Module

The Paradox PS817-P2C (PS817) is an official non-supervised 1.75A / 13.8V DC switching power supply board engineered to provide reliable auxiliary power to Paradox alarm control panels, motion detectors, keypads, and auxiliary expansion modules. Designed for seamless power management, it features automatic transfer to standby battery power during AC mains failure, integrated battery charging with jumper-selectable current rates (350mA or 700mA), and built-in short-circuit protection.

Key System Features & Functionality

• 1.75A Regulated DC Output: Delivers a stable 13.8V DC output up to 1.75A to safely power auxiliary security equipment.

• Automatic Standby Battery Switchover: Instantly transfers load onto connected backup batteries in the event of AC power interruption.

• Selectable Battery Charging Current: Features an onboard jumper to select between 350mA or 700mA battery charging current (40VA transformer required for 700mA).

• Fused Circuit Protection: Includes a 5A inline fuse to safeguard the battery path against short circuits and overcurrent conditions.

• Dedicated Battery Testing Input: Features a dedicated TST terminal to allow manual or scheduled local battery load drop tests.

• Universal Battery Compatibility: Compatible with standard 12V gel-cell and sealed lead-acid (SLA) rechargeable batteries.