46 MS-5UD & MS-10UD Series Manual — P/N 52626:C2 1/24/2012
Installation ANN-BUS Devices
2.8.3 ANN-80(C) Remote Fire Annunciator/Indicator
The ANN-80(C) Annunciator/Indicator is a compact, 80 character, backlit LCD remote fire annun-
ciator which mimics the FACP display. It also provides system status indicators for AC Power,
Alarm, Trouble, Supervisory and Alarm Silenced conditions. The ANN-80 Annunciator provides
buttons for remote Reset, Silence, Acknowledge, and Drill of the FACP. The ANN-80C Indicator
does not provide these buttons. Communication between the ANN-80(C) and FACP is accom-
plished over a two wire serial interface employing the ANN-BUS communication format. The
devices are powered, via two additional wires, from either the host FACP or remote UL-listed, fil-
tered, power supply.
Specifications
• Operating Voltage Range: 18 VDC to 28 VDC
• Current Consumption @ 24 VDC nominal (filtered and nonresettable):
Normal/Standby (no activity): 37.0 mA
Trouble: 39.0 mA
Alarm: 40.0 mA
AC Fail ( not backlit): 15.0 mA
• For use indoors in a dry location
Installation
Ensure that all power (AC and DC) has been removed from the FACP before installing the annunci-
ator.
Opening/Closing Annunciator
The following procedure details the steps used to open the annunciator in order to access the termi-
nal block and DIP switches (refer to figure below):
1. Turn the key switch to the ON (Unlocked) position by turning the key counter-clockwise
2. Push in the snap latch located on the right side of the unit while pulling the cover open
3. To close the cover, make certain the key switch is in the ON (Unlocked) position. Swing the
cover closed, snapping it shut
4. Turn the key switch to the OFF (Locked) position by turning clockwise and remove the key
04 OFF OFF ON OFF OFF
05 OFF OFF ON OFF ON
06 OFF OFF ON ON OFF
07 OFF OFF ON ON ON
08 OFF ON OFF OFF OFF
Key switch shown
in ON position
Press in latch
and
Pull annunciator
cover open
Annunciator cover
with LCD display
Annunciator backplate
ann-80_iso.wmf
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