Ademco - 492-493 Installation Notes

NOTES ON Nos 492 and 493 POWERING DIGITAL COMMUNICATORS RED mark on addition a bell output 669 makes digital powering bell an early Capacitor be a No 251 Transient wires With electronic be No 508T bell needed siren older a bell Capacitor separate be used when powering early No 251 Suppressor RED mark which used NOT that with No POWERING COMBINATION ALARM CONTROLS power without be used power of AC power AC term Combination Control used with of NOTE or 2 below NOT necessary connect observed the AC is connected transients power an AC power use 6 volt particular output and 4 of power The No 492 can power The No 493 can power remote remote ADEMCO detectors manner as such AC ON pilot being no being a standby mode and drawing AC effect