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6. Electrical Connections
NO.
1
2
3
4
5
1. Use 1~1.5mm² twisted pair with shielding layer
2. Strip the protective layer of the communication cable by about 20mm, and strip the insulation
layer of the wires by about 10mm
3. Connect the stripped wires to the RS485 port of the S3-Logger device
4. If multiple inverters need to be monitored on site, daisy-chain cables can be used for the
inverters. Each serial port of S3-Logger can connect 15 inverters.
Note:
When wiring, RS485A is connected to the A port of the S3-Logger device, and RS485B is
connected to the B port of the S3-Logger device.
definition
Port 1 RS-485_A
Port 1 RS-485_B
Port 2 RS-485_A
Port2 RS-485_A
GND
.11.
NO.
definition
Port 3 RS-485_A
6
Port 3 RS-485_B
7
Port 4 RS-485_A
8
Port 4 RS-485_B
9
10
GND
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