General Function: * 8 Alarm Inputs & 8 Relay Outputs each controller * Integrated Central Processor Unit * RS485 Interface (ID addressable) * Multi-Controller support via RS485 * Max. 256 controllers connected Technical Specification: > Operating PowerDC12V, 8W (each controller) > Relay Output- NO/NC > Relay Specification- 10A/DC28V or 7A/AC220V > Alarm Input- NO/NC > Operating Temp -10C ~ 55C > Dimension 18 x 12 x 3 cm