Edwards EST IO-SDC2 SF 17/02 The Siemens FDO421 is an

The Siemens FDO421 is an intelligent

addressable smoke detector with built-in carbon monoxide (CO) detection capabilities

maintenance facilities or other commercial applications

The Siemens S-HP-MCS series speakers are highly efficient 4-watt (maximum output) speakers that have been designed for emergency voice evacuation applications

or Temporal 3 (T3) with Anechoic sound levels adjustable up to 80 dB and tone frequency of 890 Hz

Edwards EST IO-SDC2 SF 17/02 The Siemens FDO421 is anThe iO SDC2 is a 500 point dual loop controller card for the iO1000 that provides two SLC circuits, each with 125 detector addresses and 125 module addresses. Datasheet (Technical Specifications): Download IO SDC2 Datasheet (PDF)