User's Manual

User manual
Guangzhou Andea Electronics Technology Co., Ltd. 9/39
http://www.gzandea.com
Figure 10 S1, S2 connection port
GPIO interface pin definition:
Figure 11 S1, S2 connection port pin identification
Table 5 Pin definition of S1, S2 connection port
Interface
Name
Pin
Definition
Description
S1
Pin1
MOS
MOS transistor port
Pin2
NC
Relay port: normally closed port
Pin3
NO
Relay port: normally open port
Pin4
COM
Relay port: common port
Pin5
IN1
data input
Pin6
GND
GND
Pin7
RS485-A
DATA+
Pin8
RS485-B
DATA-
S2
Pin1
IO-1
GPIO
Pin2
IO-2
GPIO
Pin3
IO-3
GPIO
Pin4
IO-4
GPIO
Pin5
12V
12V level signal output
Pin6
GND
GND
Pin7
CAN-L
Low data line
Pin1
CAN-H
High data line