Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Installers Handbook 21
Interfacing with fire alarm panels
Because of the flexible nature of the detector and the many possible
configurations, there are many options for interfacing the detectors to the fire
panel. The detector provides the following methods of interfacing with fire alarm
panels:
• To conventional fire alarm panels using the detector’s Fire and Fault relay
contacts
• To addressable fire alarm panels via Addressable Programmable Interface
Cards (APICs)
APICs, which can be mounted inside the detector, may simplify installation when
connecting to addressable signaling line circuits (SLC). The APIC used is
completely dependent on the SLC protocol, and therefore, the make and model
of the fire alarm panel.
WARNING: Incompatible APIC panel combinations may result in a non-
operational system which may fail to perform during an event, with resultant loss
of life and/or property.
When the interface is set to a single address mode, the card appears as a single
address on the SLC, and the detector status is read from that address.
Connecting the detector to an APIC
The APIC is fitted to the four mounting studs on the detector PCB using the
supplied screws as shown Figure 13 on page 22.
The connections to the fire panel are made using the BUS L1 and H1 (bus 1
input and output) and the BUS L2 and H2 (bus 1 input and output) terminal
connectors shown in Figure 10 on page 18.
The settings that need to be made are on the APIC address DIP switches. Both
switches (SW1, SW2) must be set to the same address.
Note: Some protocols may not support all the available alarm levels and fault
reporting is usually a general fault with no detailed fault information. Please
consult the specific APIC protocol documentation for more information.
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