EMS Firecell Programming Manual page 7

9. Set BG Threshold – Allows the user to alter the Background threshold that will prompt a
Background fault when the set level is met. Note; this would normally be set 20dB Higher
than the background (background found within the node status menu). For example, with
a background level found to be at a level of -110, we would set the BG Threshold to -90.
10. Set CS Threshold – Allows the user to alter the Carrier Sensor threshold that when the
ambient background level is met will hold off transmissions until the air has cleared. Note;
this would normally be set 3dB Higher than the BG Threshold and 23dB higher than the
background. For example, with a background level found to be at a level of -110, and the
BG Threshold is set to -90, we would set the CS threshold to -87dB.
Note: The Site ID 1, Poll Rate, Poll Timeout and Baud Rate must be programmed the same on all
Radio Network Communicators (Nodes) across the Network.
EMS Group Head Office, Technology House, Sea Street, Herne Bay, Kent CT6 8JZ, England
Technical Helpline Tel: +44 (0) 1227 369570
FireCell Radio Network Communicator Programming Manual (Issue 2)
Set BG Threshold
Set CS Threshold
Email: enquiries@emsgroup.co.uk
MK137
Website:www.emsgroup.co.uk
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