Chapter 1: Introduction
ModuLaser Modular Aspirating Smoke Detector Installation Manual 3
Clusters
Each ModuLaser high sensitivity smoke detection system consists of a group of
modules known as a cluster.
A cluster consists of one minimum or standard display module and from one
(minimum) to eight (maximum) detector modules.
Caution: A command display module cannot replace or substitute a minimum or
standard display module in a cluster configuration.
The display module is connected to the detector modules via the SenseNET+
RS-485 interface. The display module can be positioned anywhere within the
cluster.
The display module and up to four detector modules can be installed in a single
location (non-distributed cluster) or in separate locations (distributed cluster).
Additional detector modules in the same cluster must be installed in a separate
location. See “Connecting modules” on page 21 for more information on cluster
connections.
Each device in a cluster is identified by a unique 7-bit address in the range 1 to
127. Multiple clusters can be connected to create a SenseNET network.
Connectivity
The following network interfaces are used:
• An APIC card is used for communication between the aspirating smoke
detector and a fire alarm control panel via an addressable loop.
• SenseNET+ is used for communication between display modules and
detector modules in the same cluster.
• SenseNET is used for communication between a command display module,
multiple ModuLaser clusters, and other compatible ASD units.
ClassiFire
ClassiFire is the patented artificial intelligence system for aspirating smoke
detectors that continually monitors the environment and internal contamination
and automatically adjusts sensitivity to the optimum level.
ClassiFire automatically adjusts sensitivity to suit day/night levels with no need
for external input.
ClassiFire automatically sets up the detector to the normal working environment
so the detector sensitivity is optimized for its surroundings.
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