FDU-80 Instruction Manual —
P/N 51264:C2 4/24/2019
7
Section 2: The FDU-80 Annunciator
The FDU-80 Annunciator is a compact, 80-character, backlit LCD fire annunciator designed for use with compatible FACPs (Fire Alarm
Control Panels). The FDU-80 Annunciator display will mimic the FACP display.
The FDU-80 is capable of displaying English-language text of system point status including device type, independent point alarm, trou-
ble or supervisory, zone and custom alpha labels programmed into the control panel. The FDU-80 also provides system status LEDs to
display Power, Alarm, Trouble, Supervisory and Alarm Silenced conditions. The FDU-80 is capable of performing system acknowledge,
silence, drill and reset remotely.
Communication between the FACP and the FDU-80 is accomplished over a two-wire serial interface employing the EIA-485 communi-
cation standard. Up to 32 annunciators may be connected to the two-wire EIA-485 circuit. The annunciators may be powered from the
host FACP or remote UL listed, filtered, power supplies.
2.1 Compatible Panels
•
NFS2-640
•
NFS-320
•
NFW2-100
•
NFS-640
•
NFW-100
•
AFP-300/400
2.2 Features of the FDU-80
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80-character LCD display (20 characters x 4 lines) is backlit under normal and alarm conditions
•
System Status LEDs for AC Power (green), Alarm (red), Trouble (yellow), Supervisory (yellow) and Alarm Silenced (yellow)
•
No programming necessary — duplicates messages at control panel display.
•
Local piezo sounder with alarm and trouble resound
•
Device type identifiers from the control panel
•
Device & zone custom alpha labels from the control panel
•
Time/date and device address from the control panel
•
EIA-485 connects to control panel terminal port
•
Plug-in terminal blocks for ease of installation and service
•
DIP switches control piezo enable/disable, transmit/receive mode, FACP selection, function switches and key-switch
enable/disable.
•
Up to 32 FDU-80 Annunciators per FACP
•
Mounting options:
– Surface mounting in SBB-3 (2.75" depth) or three electrical boxes ganged together
– Semi-flush mounting in three-gang electrical box (P/N 10103) with a minimum depth of 2.187" or three electrical boxes ganged
together
– Can be located up to 6,000 feet (1,829 m) from the panel
•
Backlight turns off during AC loss to conserve battery power but will turn back on if an alarm condition occurs.
•
Enable/Disable key-switch
•
Function switches for:
– Acknowledge/Step
– Alarm Silence
– Drill
– System Reset/Lamp Test
NOTE:
The FACP may require programming to function with the FDU-80. Refer to the specific FACP manual for programming information.
