1
2
3
4
5
6
7
8
9
10
11
12
G
F
E
D
C
B
A
H
17
KX-FP300E
KX-FP300E
(Model KX-FP300E)
5V
0V
( ) : Not Used
I/O PORT
0V or 5V
4.1V
ON HOOK : 5V
OFF HOOK : 0V
SP-PHONE ON 5V
SP-PHONE OFF 0.5V
12V FAX RX. TEL TALK
12V
HANDSET,
SP-PHONE
FAX TX
2.1V
FAX TX Signal
SP-Phone TX Signal
FAX RX Signal
SP-Phone RX Signal
SCHEMATIC DIAGRAM (ANALOG CIRCUIT) (Change from original page 174.)