Solare Datensysteme Solar-Log - Manual (Page 125)

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Huawei
Huawei
Connect the inverters to each other
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Connect using a network cable (patch cable)
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Where to connect: 2 RJ45 sockets
Procedure
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Open the inverter as shown in the inverter's instructions.
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Insert the RJ45 plug into RS485-Out socket on the first inverter.
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If you are making the cable yourself, connect the wires as shown in the diagram above.
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Connect the remaining inverters with the network cable.
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Terminate in the last inverter in accordance with the manufacturer's specifications.
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Close the inverter if no other inverters are to be connected.
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Insert the terminal block connector into the Solar-Log™ RS485 socket.