Read Panasonic KX-NS8290CE Service Manual online
16
KX-NS8290
4.10. Power Plane
4.10.1. Power Plane Block Diagram
4.10.2. Power Supply and Reset Sequence
AC Adaptor
9V/750mA
9V/750mA
9V
RJ45
(PoE)
44
57V
+
-
PoE
DCDC
RJ45
(E1/PRI)
Framer
VCC(3.3V)
CPU
(M82334)
PHY
VCC(1.1V)
VCC(1.8V)
DG
DCDC
(3.3V)
12V
NAND
Flash
NOR
Flash
DDR2
DDR2
PoEG
REG
(1.8V)
DCDC
(1.1V)
(1.1V)
Vref Reg
VREF
Back
Up
Input Power Failure
Power Recovery
300ms >
Input Power Failure
50ms
Software release
Framer / PHY Reset
Framer / PHY Reset
Power Down Interrupt
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