Specifications
40
Indicators, Controls and Operations
9.0  Indicators, Controls and Operations
Refer to Figure 22 below for LED Indicator and Control Button locations.
Figure 23 LED indicators and control buttons
The Main Display Panel on the Main Pre-Action/Deluge and Agent Release Control Board
consists of:
• 16 common LED Indicators (left portion of display)
• Ten Common Buttons (left half portion of display)
• Up to six Initiating Circuit Alarm LEDs and six Initiating Circuit Trouble LED Indicators
• Four Indicating/Releasing Circuit LEDs (labeled NAC for Notifying Appliance Circuit or 
RAC for Releasing Appliance Circuit)
• Up to ten disconnect buttons (six for initiating circuits & four for indicating/releasing 
circuits)
LED Indicators may be amber, red, or green, and may illuminate continuously (steady), or at
one of two flash rates.
• Fast Flash (Supervisory)- 120 flashes per minute, 50% duty cycle
• Trouble Flash (Trouble) - 20 flashes per minute, 50% duty cycle
Note: Each display is supplied with laser printer printable paper labels for sliding into
the plastic label template on the panel. For the Main Display, the paper label is
Mircom# ND-2056; this includes English and French versions.
SYSTEM 
RESET 
AC ON 
X 
M 
? 
GROUND FAULT 
CPU FAIL 
ABORT 
RELEASED 
COMMON ALARM 
COMMON SUPV 
REMOTE TROUBLE 
COMMON TROUBLE 
BATTERY TROUBLE 
SIGNAL 
SILENCE 
AUXILIARY 
DISCONNECT 
LAMP 
TEST 
BUZZER 
SILENCE 
PRE 
RELEASE 
RAC2 
(ZONE 4) 
RAC1 
(ZONE 3) 
NAC2 
(ZONE 2) 
NAC1
(ZONE 1)
IAC6 
(ZONE 1) 
IAC5 
(ZONE 5) 
IAC4 
(ZONE 4) 
IAC3 
(ZONE 3) 
IAC2 
(ZONE 2) 
IAC1 
(ZONE 1) 
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