Notifier FDU-80

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Operation

Switch Functions

Document 51264 Rev A2 6/14/00 P/N 51264:A2

When more than one event exists, the first press of the Acknowledge

switch silences system piezo sounders. The second press of the

switch stops the scrolling and holds the event on the display for one

minute. Subsequent pressing of the switch 'steps' through each

active event.

2.2.3 Silence

When the Silence switch is pressed and released, the FDU-80 sends

an alarm silence command to the control panel. The Silence switch

performs the same functions as the Acknowledge switch. In addition,

if an alarm exists, it turns off all silenceable NACs and causes the

FACP Alarm Silenced LED to turn on while the FDU-80 will display

a 'silenced' message. It also sends an 'Alarm Silenced' message to the

printer and the history file within the FACP. A subsequent new alarm

will resound the appropriate NACs (Notification Appliance Circuits)

and local sounders.

2.2.4 Drill: Hold 2 Sec.

When the Drill switch is pressed and held for at least two seconds

(time required to prevent accidental activations), the FDU-80 will

transmit a drill command to the control panel. This command causes

the FACP to turn on all NAC outputs and all silenceable circuits (all

control modules/NACs that are programmed silenceable). In the

event that the system was previously silenced, the drill command

will also turn off the Alarm Silenced LED. The 'Manual Evacuate'

message is shown on the FDU-80 display. The same message is sent

to the FACP display, printer and history files. The Silence switch

operates on

silenceable

NAC outputs only.

2.2.5 Reset

When the System Reset switch is pressed and released, the FDU-80

sends a Reset command to the control panel. This will turn off all

control modules and Notification Appliance Circuits, temporarily

turns off resettable power to 4-wire detectors, causes a 'System All

Normal' message to be displayed on the FDU-80 and sends a 'Sys-

tem Reset' message to the FACP display, printer and FACP history

files. It also turns on all system LEDs, piezo sounders and LCD dis-

play segments as long as the Reset switch is held (lamp test). Any

alarm or trouble that exists after a Reset will resound the system.