2
Introduction
• Common controls and indicators for System Reset, Lamp Test, Fire Drill, Signal Silence,
General Alarm,
• General Alarm Cancel, AC On, Pre-Alarm, and Ground Fault.
• Two Spare configurable Keys and LED Indicators.
• 16 configurable LEDs (bi-coloured) with slide-in labels, available with the DSPL-420-
16TZDS display.
• Provides drift compensation for photoelectric smoke detectors.
• Provides Signal Coding of signal circuits for easy alarm identification (code consists of 1
to 4 digits, each digit consisting of 1-15 pulses on the signal).
• Selection for Canadian (ULC) or USA (ULI) requirements for Smoke Sensor sensitivity.
• Extensive transient protection.
• Surface Mountable Enclosures with removable doors for easy installation and service.
Flush Trims available.
• Removable Terminal Blocks for easy wiring and service.
• Loop Adder modules ALC-198S and ALC-396S for expanding addressable loops by 1
and 2 respectively.
• Adder module ALC-H16 hardwire loop interface board for expanding conventional input,
output, relay capability.