NFS2-640 Operations P/N 52743:L4 06/10/19 27
Security Alarm Mode of Operation Operation of the Control Panel
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, remote annunciators, history buffer, installed
printers, 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 3.11 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 remote
annunciators, history buffer, installed printers, and CRT-2s.
2. Correct the condition that activated the Security point.
3. When you finish correcting the Security condition, press the
SYSTEM RESET key to return the
control panel to normal operation (indicated by the “System Normal” message). The control
panel sends a “System Normal” message to the LCD display, remote annunciators, history
buffer, installed printers, and CRT-2s.
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 041515 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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