LED Indicators
Introduction
ACPS-2406 PN 51304:B 09/02/2003
11
1.6 LED Indicators
There are 16 LEDs that indicate various conditions and troubles. The following table lists and
describes each.
Table 1.2 LED Indicators
Reference
LED Name
Color
Description
D19
GND FLT
Yellow
Illuminates when a ground fault is detected on any NAC,
battery lead, or 24-volt output.
D32
NAC 1 Activated
Green
Illuminates when NAC 1 is activated.
D40
NAC 2 Activated
Green
Illuminates when NAC 2 is activated.
D47
NAC 3 Activated
Green
Illuminates when NAC 3 is activated.
D54
NAC 4 Activated
Green
Illuminates when NAC 4 is activated.
D81
MONITOR
Green
Blinks steadily during normal polling process. Shuts off
when there is a monitor trouble.
D66
NAC 1
Green
Glows steadily when communication is established with the
FACP. Blinks steadily during normal polling process.
D67
NAC 2
Green
Glows steadily when communication is established with the
FACP. Blinks steadily during normal polling process.
D68
NAC 3
Green
Glows steadily when communication is established with the
FACP. Blinks steadily during normal polling process.
D69
NAC 4
Green
Glows steadily when communication is established with the
FACP. Blinks steadily during normal polling process.
D70
TRBL
Yellow
Illuminates when one of the following troubles occur: brownout;
+38 volt supply supervison; invalid address.
Blinks once, pauses, then blinks again, repeating this pattern for
brownout trouble.
Blinks twice, pauses, then blinks twice again, repeating this
pattern for +38 volt supply failure.
Blinks three times, pauses, then blinks three times again, repeating
this pattern. Panel programming does not match DIP Switch
settings.
D71
BAT/CHG
Yellow
Illuminates when there is a battery or charger trouble.
D72
UCFAILURE
Yellow
Illuminates if the microcontroller fails.
D75
AC
Green
Illuminates when there is AC power.
D73
SLCRXA
Green
Illuminates when data is transmitted on the SLC.
D74
SLCTXA
Green
Illuminates when data is received from the SLC.
