SAJ Sunfree 4K User Manual
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Contents
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Sunfree Series- 29 -5.7 Communication Connection5.7.1 Serial Port DefinitionSunfree Series Hybrid Inverter has a RS232 communication port Integrated .Figure 5.15 9-Pin serial portPin Number Description Effect1 DCD（Data Carrier Detect） Data carrier detection2 RxD（Received Data） Serial data input3 TxD（Transmitted Ready） Serial data output4 DTR（Data Terminal） Data terminal ready5 GND（Signal Ground） Ground line6 DSR（Data Send Ready） Data Send Ready7 RTS (Request To Send) Request To Send8 CTS (Clear To Send) Clearly Send9 RI (Ring Indicator) RingtoneTable 5.5 9-Pin serial port introduction(1) RS232 connect with Wi-Fi module, please reference Wi-Fi user manual.(2) RS232 connect with Ethernet module, please reference Ethernet user manual.(3) RS232 connect with GPRS module, please reference GPRS user manual. |
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