Serial Port 4/ 3 Connector (Cn5/ Cn7); Lcd Backlight Brightness Adjustment (Vr1) - Avalue Technology EMX-PNV User Manual

EMX-PNV
2.4.7

Serial port 4/ 3 connector (CN5/ CN7)

2.4.8

LCD backlight brightness adjustment (VR1)

24 EMX-PNV User's Manual
Signal PIN PIN
DCD 1
TxD 3
GND 5
RTS 7
RI 9
Signal PIN
+5V 1
BRIGHT 2
GND 3
(Recommended: 4.7KΩ,
Signal
2 RxD
4 DTR
6 DSR
8 CTS
10 NC
Variation Resistor
>1/16W)