Specifications

Indicators, Controls and Operations
26
Indicators, Controls and Operations
Refer to Figure 20 below for LED Indicator and Control Button locations.
Figure 20: 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 that 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 Secutron #ND-2056SEC.
Common LED indicators
AC ON
The AC ON led is on steady green while the main AC power is within acceptable levels. It is turned off when the
level falls below the power-fail threshold.
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
(ZONEV 1)
IAC6
(ZONE 1)
IAC5
(ZONE 5)
IAC4
(ZONE 4)
IAC3
(ZONE 3)
IAC2
(ZONE 2)
IAC1
(ZONE 1)