Designed to interface the A 4567 Line monitoring unit with a fire indicator board. The addition of the A 4568 enables you to monitor the status of each individual zone. The interface can be set up to monitor each zone in two ways. 1. LED status indicates normal or fault (no distinction between open or short). 2. LED status indicates either short or open. Connection between the A 4567 and A 4568 is via a Cat 5e patch lead. Screw terminals are provided for each zone.Designed & manufactured in Australia.Since 1976 Redback public address products have been manufactured in Perth, Western Australia by Altronics. With over 40 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support.Read more about our Australian Made products