Edwards EST iO-SDC1 (250-Point Single-Loop Expansion Card)

The Edwards EST iO-SDC1 is a single-loop controller card for iO Series fire-alarm control panels. It adds one Signature SLC to the IO1000 for 250 addressable devices (125 detectors and 125 modules) or replaces the standard loop on the IO64. Class B or Class A wiring is supported. Key Specifications: Type: Signature loop controller expansion card Compatible Panels: IO1000G, IO1000GD, IO1000R, IO1000RD, IO64 Added Capacity: IO1000 adds one loop with 250 device addresses; IO64 provides 64 addresses Wiring: Class B or Class A Operating Voltage: 24 V DC Operating Current (loop fully loaded): Standby 55 mA, Alarm 80 mA Communication Line Voltage: Max 20.6 V peak-to-peak Terminal Rating: 12–18 AWG (0.75–2.5 mm²) Max Total Loop Resistance/Capacitance: 66 Ω and 0.5 μF Related Accessories: SA-232 – RS-232 interface card SA-ETH – 10/100 Base-T Ethernet card iO-SDC2 – 500-point dual-loop controller card (IO1000 only)