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NCM Installation PN 51533:A1 03/27/03
3 Diagnostic Indicators
The NCM has LEDs that serve as diagnostic indicators to help in troubleshooting and system
connection. Refer to Table 3 for a list of diagnostic indicators and their descriptions. Refer to Figure 6
for location of the diagnostic indicators.
Figure 6 Diagnostic Indicator Locations
Table 3 Diagnostic Indicator Functions and Colors
LED Indicator
LED Color
LED Description
A HI
(NCM-W only)
Green
Illuminates to indicate the NCM-W Port A is set for high threshold.
B HI
(NCM-W only)
Green
Illuminates to indicate the NCM-W Port B is set for high threshold.
RCD A
Green
Illuminates when the NCM is receiving data from
NOTI•FIRE•NET™
on Port A.
RCD B
Green
Illuminates when the NCM is receiving data from
NOTI•FIRE•NET™
on Port B.
STATA
Yellow
Illuminates when the NCM has not received valid data from
NOTI•FIRE•NET™
on Port A for at least 16 seconds.
STATB
Yellow
Illuminates when the NCM has not received valid data from
NOTI•FIRE•NET™
on Port B for at least 16 seconds.
RECON
Yellow
Illuminates when a reconfiguration on
NOTI•FIRE•NET™
is in
progress.
PULSE1
Green
Illuminates when the NCM is transmitting data to
NOTI•FIRE•NET™
.
RESET
Yellow
Illuminates when the microcontroller fails.
POWER
Green
Illuminates when +5 VDC is available
RESET POWER
RECON PULSE1
STATA STATB
RCDA
RCDB
A HI
B HI
A HI (NCM-W only)
RCD A
STATA
RECON
RESET
B HI (NCM-W only)
RCD B
STATB
PULSE1
POWER
NCM-LEDS
.c
dr
