Inverter Trienergia SunUno Plus Series
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5.5 Communication Connection
Trienergia SunUno Plus 1K/1.5K/ (TR-xxxxM1), SunUno Plus 2K/2.5K/3K (TR-xxxxM1) and
SunUno Plus 3K-M/4K-M/5K-M/6K-M (TR-xxxxM2) are equipped with a RS232 interface
.
Figure 5.11 Pins of Nine Serial Port Cable
Pin No.
Name
1
DCD (Data Carrier Detec)
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
