Sununo Plus Series
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5.5 Communication Connection
Sununo Plus 1K/1.5K/2K/2.5K/3K/3.6K
/
3K-M/4K-M/5K-M
/
6K-M is equipped with a
RS232 interface.
Figure 5.11 Pins of Nine Serial Port Cable
Pin No.
Name
1
DCD
（
Data Carrier Detect
）
2
RxD
（
Received Data
）
3
TxD
（
Transmitted Ready
）
4
DTR
（
Data Terminal
）
5
GND
（
Signal Ground
）
6
DSR
（
Data Send Ready
）
7
RTS (Request To Send)
8
CTS(Clear To Send)
9
RI(Ring Indicator)
Table 5.5 Instruction of Nine Serial Port Pins
（
1
）
RS232 can externally connect with Wi-Fi module.For more details, please refer to the
operating manual of Wi-Fi module.
（
2
）
RS232 can externally connect with Wi-Fi module.For more details, please refer to the
operating manual of Ethernet module.
（
3
）
RS232 can externally connect with Wi-Fi module.For more details, please refer to the
operating manual of GPRS module.
5 4 3 2 1
9 8 7 6
