Huawei SUN2000-36KTL Quick Manual page 13

3. Remove the locking cap from the COM1 connector at the inverter bottom and then remove the
plug from the cap.
4. Route the communications cable through the locking cap and then the COM1 connector at the
inverter bottom.
5. Insert the RJ45 connector into the RJ45 network port
in the maintenance compartment of the inverter.
7. Use a torque wrench with an open end of 33 mm to tighten the locking caps to a torque of 7.5 N·m.
NOTE
To ensure airtightness, you are advised to apply firestop putty to the used connectors at the
bottom of the chassis.
(Optional) Installing FE Communications Cables
4.6
FE communication is mainly used in distributed rooftop scenarios with a small number of inverters.
The inverter can directly connect to the PC over the Ethernet to implement monitoring networking.
NOTE
1. If FE communication is used, a maximum of ten SUN2000s can be connected. In addition, the
NetEco needs to be installed on the PC for monitoring networking.
2. A standard network cable has two wire sequence standards, namely, 568A and 568B. The
network cables used in the same PV grid-tied power generation system should comply with the
same wire sequence standard.
You are recommended to use a CAT 5E outdoor
shielded network cable with an outer diameter
less than 9 mm and internal resistance not
greater than 1.5 ohms/10 m, as well as a
shielded RJ45 connector.
1. Insert the wires of the network cable to the
RJ45 connector in sequence.
2. Crimp the RJ45 connector using a crimping tool.
6. Bind the communications cable.
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