Indicator Description
Batt Low
Illuminates when the fire control panel is operating on batteries and the battery
voltage is below 21.5 VDC.
Illuminates when the fire control panel is operating on AC and the battery voltage is
below 24 VDC.
Comms Trbl
Communication has been lost with the remote annunciator or Ancillary board.
Earth Trbl
Part of the field wiring is connected to earth ground. Remove all field wiring and
then re-connect cables one at a time until the Earth Trbl returns. Use this procedure to
locate the cable connection to earth ground.
NAC1 Trbl
A short or open circuit exists on the NAC output. Remove wiring and reconnect the
EOL resistor. Check NAC circuit wiring.
NAC2 Trbl
A short or open circuit exists on the NAC output. Remove wiring and reconnect the
EOL resistor. Check NAC circuit wiring.
Mode LED
A trouble condition occurs on the fire control panel when o 7 is displayed on the
Mode LED.
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