NFS2-640/E Programming Manual — P/N 52742:L2 7/17/14   119
Appendix H: Intelligent Sounder Base Programming 
and Operation
The NFS2-640 is compatible with the B200 Intelligent Sounder Base. This sounder base allows for 
multiple tone generation that is user programmable via VeriFire Tools.
Programming the Intelligent Sounder Base into the Control Panel:
Once the sounder base has been installed and a detector has been plugged into the sounder base, 
you can do one of the following to program the sounder base into the control panel:
• Autoprogram—Perform an autoprogram at the control panel. The sounder base will have the 
same SLC device address as the detector installed on the sounder base. Once the Autoprogram 
is performed, the display will show the number of sounder bases installed on the control panel. 
Refer to Section 2.3.2, “Autoprogram the Control Panel (1=auto)”, on page 15.
• VeriFire Tools —Using VeriFire™ Tools, program the detector that is to be installed in the 
sounder base and select the Intelligent Sounder Base option. Refer to the VeriFire Tools Help 
File for additional information.
Intelligent Sounder Base Options:
The sounder base has user programmable options that can be modified via VeriFire Tools. These 
features and their defaults are as follows:
Table H.1  Intelligent Sounder Base Options
Feature: Description and Options: Default:
Zone Mapping The sounder base allows for up to three (3) 
zones to be programmed for specific tone 
generation. The tones available are:
• Continuous
• Temp-3
• Temp-4
•March Time
The first of the three zones has the highest 
priority, the second zone has second priority, 
and the third has third priority.
No zones mapped.
(When set as default, a fire alarm 
will generate a Temp-3 tone and a 
CO alarm will generate a Temp-4 
tone.)
Silence and 
Resound
The intelligent sounder base may be 
programmed for silenceable operation as well 
as signal resound. The silence and resound 
options available are:
• No silence
• Silence and resound by Fire Alarm
• Silence and resound by Supervisory
• Silence and resound by CO alarm
• Silence and no resound
Silenceable and Resound by Fire