Dual Zone Digital Location Control Unit Installation and Operation Manual
4
Introduction
Overview
The Alarmline II Dual Zone Digital Location Control Unit is designed for
monitoring Alarmline II Digital Sensor cables.
Most Alarmline II Digital Linear Heat Detection (LHD) systems use a standard
monitored circuit (such as a conventional detection zone) or an addressable input
module to monitor the status of the sensor cable, but these monitoring methods
provide only simple two state operation (alarm or no alarm).
The control unit provides a number of additional features to a standard LHD
system, including:
• Monitoring of two zones of digital sensor cable
• 3000 m (9842 ft.) of sensor cable per zone
• Independent or interlock zone operation
• Alarm distance location along sensor cable
• Modbus interface
Figure 1: Dual Zone Digital Location Control Unit
