JRC JMR-9282-S - Page 90

Chapter 2 System Configuration 2-32
Table 2.4.8 PSU I/O specifications 3
Label Name Pin
Signal
Name
I/O Specification Detail
J53 PSU_CONT
1 AC FAIL OUT
Open Collector
Output
Logic level H (within
40ms) : AC IN is less
than 75Vac typ.
2 DC EMPTY OUT
Open Collector
Output
Logic level H (within
40ms) : DC IN is less
than 18Vdc typ.
3 FAN ALM OUT
Open Collector
Output
Logic level H: The Fan
motor anomaly.
4 N_PWRGD OUT
Open Collector
Output
Logic level H: PSU has low
output voltage under output
anomaly such as
overvoltage, overcurrent or
inner temperature
anomaly.
It is enabled while
N_MTR_ON is L. If it is H,
N_PWRGD is forced to be
L except under inner
temperature anomaly.
5 SG - - -
6 SG - - -
7 N_24V_ON IN
Open Collector
Input
Logic level L: 24Vdc
(CCU) ON
8 N_MTR_ON IN
Open Collector
Input
Logic level L:
ACOUT(L/N),
48Vdc(+,-), 24Vdc(M+,
M-), and 24Vdc(1A, 2A)
ON
9 N_MNU_ON IN
Open Collector
Input
Logic level L: 24Vdc
(MNU) ON