... zones 32-CHANNEL ALARM MATRIX The DCI-19A connects between a facility's fire alarm system and public address system. With support for ... up to 32 zones, any zone that has a fire alarm ... ,+/- 1, +/- 2, +/- 3, +/- 4 Controls Power switch, address setting dip,and adjacent zone selector, Indicators POWER indicator, CH1 ~ CH32 alarm status ...