Applications Signal the beginning and end of class periods, breaks, and lunch periods for schools Signal the beginning and end of shifts, breaks, and lunch periods for factories and other businesses Provides a door bell and /or alarm sounds over an existing paging system, for door entry, fire, severe weather applications Use with Viking's digital announcers, to provide timed messages Features Accurate 24 hour digital time clock displays hours and minutes. User programmable 24 hour, 128 event timer. Programmable day of week on/off feature Selectable single, double, or triple alert sound. Three contact closure controlled sounds: -Emergency (yelp) siren -Temporal (slow whoop) evacuation signal (NFPA/ANSI compliant when used with supporting equipment), -Door bell (ding dong) sound. Volume controllable, 600 ohm, line level audio output. Non-volatile programming memory. Battery backup for maintaining clock time. Battery charging circuit for charging 9V. NiCad/NiMh batteries. DPDT relay contacts for muting paging and background music during event tones. Specifications Power: 120V AC/13.8V AC 1.25A UL listed adapter provided Dimensions: 133mm x 91mm x 44mm (5.25" x 3.6" x 1.75") Weight: 0.9 Kg (2 lbs) Environmental: 0 degC to 32 degC (32 degF to 90 degF) with 5% to 95% non-condensing humidity Connections: 10 position cage clamp terminal strip Battery Backup: 9V alkaline or NiCad rechargeable battery (not included) maintains clock time for over 8 hours Time Base: 60Hz AC power line Time Base Battery Backup Accuracy: +/- .001% Audio Output: 600 ohm with volume adjust potentiometer, max-imum level = 0.4 dBm/1.05Vrms across 600 ohm load Relay Output: DPDT rated 125V AC, 30 W (resistive load)