ZK75 Series User Manua
l
9
4
N/C
19
GND
5
GND
20
GND
6
TxD0-
21
GND
7
TxD0+
22
BKL enable
8
GND
23
Brightness
9
AUX+
24
N/C
10
AUX-
25
N/C
11
GND
26
+12V
12
+3.3V
27
+12V
13
+3.3V
28
+12V
14
N/C
29
+12V
15
GND
30
N/C
3.9. DC Jack Pin Definition
No.
Definition
1
+19V
2
Ground
3
+19V
3.10. RJ45(COM) connector Pin Definition
No.
Definition
1
+5V/+12V