
2-8
FMT 3000 Hardware Reference Manual - Installation
Figure 2-4. Power Board Simplified Schematic
Either JP1 or JP2 should be installed, but not both at the same time. If battery back-up is not
desired, remove the battery connector from P1.
JP1
JP2
OUT
OUT
INVALID
OUT
IN
Switch enabled and battery back-up enabled
IN
OUT
Switch disabled and battery back-up enabled
IN
IN
INVALID
POWER IN (AC or DC)
1
2
P4
.01
1000uF
+
1 M
BACK-UP BATTERY CON.
P1
1
2
+
-
POWER SHUT DOWN
S1
OFF
ON
DISABLE
JP1
TO DC POWER OUT
ON DIGITAL I/O SECTION
BATTERY SHUT DOWN
TRICKLE CHARGER
BATTERY LEVEL DETECT
AC OR BATTERY
OPERATION DETECT
AC = HIGH, BAT. = LOW
BAT. LOW
BAT. VERY LOW
VOLTAGE REGULATOR
ENABLE
JP2
+5 Vout
To System
To CPU Board