Edwards AE Bulletin, ANS backup amplifier

120210 7 December 2 2010 Fire Alarm Voice Evacuation with Backup Amplifier ANSBKUP module is used to switch in a backup amplifier in the event of a primary or amplifier failure You can use one backup amplifier to support one or several other with each backed up amplifier requiring an ANSBKUP module The backup should be at least as large as the largest amplifier in the system For example if you two 25 watt amplifiers and one 50 watt the backup amplifier should be 50 watts or The backup amplifier should also be the one that includes if required the paging and digital message player Its low level audio is always fed to the preamp inputs the other amplifiers The high level audio to the speakers only gets switched in when is a simplified block diagram of a system with a backup amplifier followed by a more diagram showing the connections with just one amplifier Neither diagram shows all necessary connections however so be sure to refer to the installation drawings for more Diagram of Voice Evacuation with Backup Amplifier Visual Audible strobes speaker ckt 1 speaker ckt 2 Series Alarm Panel amp 1 amplifier 2 next ANSBKUP EOLR next amp next amp next amp 50 100MD Notification Panel Amplifier 50 100A Notification Panel 1 50 100A Notification Panel 2 Signaling Part of UTC Fire Security 41 Woodford Ave Plainville CT 06062 800 336 4206 Web www edwardssignaling com E mail signaling techsupport fs utc com 1 of 2 Diagram of Voice Evacuation with Backup Amplifier Visual note 1 Audible note 2 Series Alarm Panel or 70Vrms Audio 3 2 1 amplifier 1 not shown here note 3 Genesis Strobe Genesis Strobe 4 5 6 note 4 note 5 4 5 6 note 4 note 6 note 7 50 100MD Notification Panel Amplifier note 8 50 100A Notification Panel 1 NAC1 on fire alarm panel should be configured as Genesis NAC2 on fire alarm panel should be configured as Continuous End of line resistor for backup amplifier circuit If multiple ANSBKUPs resistor would go on last Value of resistor must match the resistor used on terminals Tb3 5 6 of the backup amplifier note 7 Jumpers on J1 shorting pins must be installed only on the amplifier farthest electrically from the amplifier Ribbon cable may be used if both amplifiers are mounted in the same cabinet Refer to installation for further details on interconnecting amplifiers Could also use Tb2 connections not here End of line resistor value here must match value used for NAC circuit on fire alarm panel For FS it s 4.7K ohms End of line resistor value here must match value used on ANSBKUP see note 3 End of line resistor value here must match value used for speaker circuits EOLR For example if circuit is using a 10K ohm eol resistor the resistor connected here must be 10K ohms Value of can be between 2.2k and 100K ohms Signaling Part of UTC Fire Security 41 Woodford Ave Plainville CT 06062 800 336 4206 Web www edwardssignaling com E mail signaling techsupport fs utc com 2 of 2