... -2316 16 HARDWIRED ZONESCK-338I HARDWIRED ZONES, 8 WIRELESS ZONES LCD Display LED KEYPADCONTROL PANLES WITH PROGRAMMABLE ZONESAUTOMATIC DIALERMASTER CODE, USER ... .O/N/C. EOL, * POWER SUPPLY: 16.5VAC, 25VA, CLASS 2 TRANSFORMER * 3 PHONE NUMBERS WITH 18-DIGIT NO AT MOST ... OR BACKUP REPORTING STYLE* COMMUNICATION PROTOCOL: 3/1 EXTENDED, 4/2, CFSKIII, 4+2 ADEMCO home alarm system