User guide

Projecting Guidelines
System Description, AutroSafe Integrated Fire & Gas Detection System, 116-P-ASAFE-IFG/XE Rev. B, 2005-10-27,
Autronica Fire and Security AS
Page 40
5. Projecting Guidelines
5.1 General Recommendations / Planning
• Bear in mind future expansions when choosing cable dimensions,
especially with regard to the PowerLoop. See Cable data on the
next page and Cable Specifications in the System Specification
Handbook, 116-P-ASAFE/XE.
• Make sure that the PowerLoop is disabled during installation,
service and maintenance.
• No branches are allowed on the PowerLoop or AutroFieldBus.
• Make sure that the detectors are evenly distributed on the
available loop drivers.This provides the best possible load sharing
and allows sufficient headroom for future expansion.
• Always use the PowerLoop Calculator to verify the installation
before commissioning.
5.2 Technical Overview
5.2.1 Limitations - Panels and Loop Units
Maximum number of Panels A maximum of 32 panels can be networked.
Maximum distance between panels 1000; 2800m with booster (BSL-325); 3000m
between each panel with fibre-optic link.
Maximum number of Al_Com detection
per panel
6 (EX as individual offshoot of normal loop).
Maximum number of Loop Units A maximum of 512 detectors can be connected to
each panel. This includes all types of detectors; gas
detectors, flame detectors, heat detectors, smoke
detectors, manual callpoints etc.
Maximum number of AutroFieldBus
Drivers per panel
1 (EAU-341)