Kidde ADLCU-2 AlarmLine II - Dual Zone Digital Location Control Unit

The Kidde ADLCU-2 digital location control unit is a dual zone module for monitoring up to two zones of AlarmLine Digital Linear Heat Detection Cable. If an overheat or fire situation triggers either zone of the digital cable the unit automatically calculates and displays the distance along the cable, in feet and metres, to the alarm point.
The two zones can operate independently of each other, or in interlock mode. A separate alarm and normally conducting fault output are provided for each zone. The unit is intended to be installed between the AlarmLine digital linear heat detection cable and a conventional or addressable fire alarm control panel. It has power, fault and alarm indicators, as well as free outputs for fault and alarm, corresponding to each zone. It may also be connected to a industrial process control system using the two wire RS-485 Modbus RTU output.

Modes Of Operation

1. Independent – This is when the unit is used as a two zone system.  When a fault or overheat condition occurs on an LHD zone, the corresponding fault or alarm output respectively is triggered. The two zones operate independently and both sets of outputs should be connected to a fire alarm control panel.

2. Interlock – this mode is for applications which require a fail-safe guarantee that an alarm is only triggered when an overheat condition has been detected. This mode may also be known as coincidence detection. In this case, the same rated temperature LHD cable should be attached to both zones of the unit. The alarm output is only activated when both LHD cables trigger an alarm due to an overheat condition. If one LHD cable zone input registers an alarm but the second does not, the alarm output will not be activated.

Kidde ADLCU-2 Features

• Dual Zone - used as Independent or Interlock
• Designed for Alarmline II digital linear heat cable
• Easy to install
• IP65
• RoHS Compliant and CE Certified
• Modbus support
• 3km of cable supported per zone
• Wide supply voltage
• Low current consumption