NFS-320/E/C, NFS-320SYS/E Operations Manual — P/N 52747:E1 06/16/2011 23
Security Alarm Mode of Operation Operation of the Control Panel
Press the ACKNOWLEDGE/SCROLL DISPLAY key and the display stops on the current trouble event
for 1 minute, then begins to automatically step through remaining troubles. To manually step
through remaining troubles, press the
ACKNOWLEDGE/SCROLL DISPLAY key.
Refer to Appendix D, “Point and System Troubles Lists”, on page 68 for explanations of troubles
that appear on the display.
3.6 Security Alarm Mode of Operation
3.6.1 How the Control Panel Indicates a Security Alarm
The system goes into Security mode when a monitor module point programmed with a Security
Type Code activates. If no fire alarm exists, the control panel does the following:
• Produces a warbling audible tone
• Turns on the Security relay (TB5)
• Flashes the SECURITY LED (blue)
• Displays a Type Code that indicates the type of security alarm being generated
•Displays ACTIVE in the status banner on the control panel, along with information specific to
the device
• Sends a Security message to the LCD display, History buffer, and installed printers, FDU-80
annunciators, and CRT-2s
• Sends a Security message to the proprietary receiver via the network, if applicable.
A Typical security message that appears on LCD display:
Figure 3.9 Sample Security Alarm Message
3.6.2 How to Respond to a Security Alarm
A Security Type Code latches the control panel. To return the control panel to normal operation,
you must correct the condition causing the security condition, then reset the control panel. If the
control panel indicates a security alarm, take the following action:
1. Press the ACKNOWLEDGE/SCROLL display key to silence the panel sounder and switch the
SECURITY LED from flashing to steady—regardless of the number of troubles, alarms,
supervisory, and security signals. The control panel sends a Security message to the History
buffer and installed printers, FDU-80 annunciators, and CRT-2s.
2. Correct the condition that activated the Security point.
NOTE: If a fire alarm exists, and there are silenced alarms (the SIGNALS SILENCED LED is
lighted), a Security alarm will resound the panel sounder.
ACTIVE SECURITY INTENSIVE CARE UNIT
EASTERN WING Z004 03:17P 041511 2M147
Status Banner
Type Code
Custom descriptor for
this device location
Device address
Time and date of trouble
Zone
Extended 12 character
custom label
NOTE: If a fire alarm exists, and there are silenced alarms (the SIGNALS SILENCED LED is
lighted), a Security alarm will resound the panel sounder.
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