What's In The Box - Redback A 4567B Operating Manual

Overview
1.1 INTRODUCTION
Specifically designed to monitor the condition of 100V line speaker systems in emergency paging and fire evacuation
installations. Many large commercial installations have speaker circuits in excess of 250W. Traditional line monitoring units
were limited to 50W per zone and would not handle this load. The A 4567B can handle loads up to 500W per zone. The
microprocessor controlled circuit continuously monitors loudspeaker lines for normal, open or short circuit condition. A
multi-colour LED indicates line condition accordingly for each zone. Internal audible alarm buzzer with cancel button is
fitted. With any fault condition, a switched output is provided for remote monitoring purposes. This is a switched to
ground signal. Three outputs are supplied. One for short circuit conditions. One for an open circuit fault. Plus a combined
output for any fault condition. The system can be configured to operate with multiple amplifiers
1.2 FEATURES
• Monitors 10 zones @ 500W max per zone
• Monitors normal, open and short circuit conditions
• Switched output for remote monitoring
• Pluggable terminals for all connections
• 10 Year Warranty
• Australian Designed and Manufactured

1.3 WHAT'S IN THE BOX

A 4567B Line Monitoring Unit
M 9391 24V 1A plugpack
Instruction Booklet
2 Redback® Proudly Made In Australia www.altronics.com.au