LP-150
User’s Manual
-13-
2.2.7 <RS-232 Interface>
J36
: 20-pin RS232 header (Pitch 1.27mm x 2.54mm)
Pin
Signal
Pin
Signal
1
NC
2
232_1_RX
3
232_1_TX
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
10
NC
11
NC
12
232_2_RX
13
232_2_TX
14
NC
15
GND
16
NC
17
NC
18
NC
19
NC
20
NC
Note:
232_1_TX: direction input, from external device to RK3128.
232_2_TX: direction input, from external device to RK3128.
232_1_RX: direction output, from RK3128 to external device.
232_2_RX: direction output, from RK3128 to external device.
J36 (RS232)
1
2
19
20
