Notifier AFP-300 Operation Manual

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Audio Amplifiers 5. Voice Alarm SystemsAFP-300/AFP-400 Operations PN 50260:C1 05/22/97 35Audio AmplifiersOverview Audio Amplifiers provide audio power for the Voice Audio System. The control panelsupports three models of audio amplifiers as listed in Table 31:Table 31 Audio Amplifier ModelsAudio AmplifierFeaturesAudio amplifiers provide the following features:• Built-in Supervision Each audio amplifier contains a set of normally-opentrouble contacts that close to light an LED showing the type of trouble. Types oftrouble include: brownout, loss of low-level supervision tone at the input, batteryfailure, audio output wiring failure (if set for four-wire output), and amplifierfailure. During total loss of primary AC power, all LEDs extinguish to conservebattery power.• Backup You can set up an audio amplifier as a backup amplifier for multipleamplifiers. If an amplifier fails, the control panel automatically switches to thebackup amplifier.• Speaker zone selection Set by control-by-event or set manually using controlswitches on the VCM-4, DCM-4, or ACM-16AT modules.Amplifier Audio Power Speaker CircuitsAA-30See Figure 36 on page 3630 watts – compatible with25 Vrms speakers.up to 30 watts each.AA-100See Figure 37 on page 37100 watts of 70.7 Vrms audio. up to 100 watts each.AA-120See Figure 37 on page 37120 watts of 25 Vrms audio. up to 120 watts each.Technical Manuals Online! - http://www.tech-man.com