Edwards Signaling FSC Series - Manual (Page 21)

Chapter 1: System overview and operation
FSC Series Technical Reference Manual 13
Silencing notification appliances
WARNING: Notification appliances should not be silenced until the building is
fully evacuated and the cause of the alarm has been determined.
Pressing the Signal Silence & Drill button turns off all audible notification
appliances. Visible notification appliances or NAC circuits may or may not turn
off, depending on panel programming.
When you silence the signals, the Signal Silenced LED turns on, indicating that
the notification appliances are off. The panel does not indicate a trouble
condition. If Genesis, horn/strobe, or horn-only devices are used on NACs
programmed for Genesis operation, Signal Silence & Drill silences only the
horns.
To silence notification appliances:
1. Press the Signal Silence & Drill button.
When the auto signal silence timer is programmed
When an event activates the notification appliances, the auto signal silence timer
is activated. The notification appliances are activated for the time period defined
during programming. When the timer expires, any NACs that are programmed as
silenceable are deactivated, and the Signal Silenced LED turns on.
If another event takes place that activates the previously silenced notification
appliances, the Signal Silenced LED turns off. At any time, you can deactivate
silenceable NACs by pressing Signal Silence & Drill.
Note: NACs activated by IDCs programmed as waterflow cannot be silenced
until the activated devices are restored to normal. After the devices restore, the
Signal Silence & Drill button or the auto signal silence timer can silence the
NACs.
Re-sounding an alarm condition
Pressing the Signal Silence & Drill button again turns the audible devices back
on if they were silenced.
Note: NACs re-sound automatically if a new alarm (from another IDC) is
received.
To re-sound notification appliances:
1. Press the Signal Silence & Drill button.