SUN2000-(29.9KTL, 33KTL-A, 36KTL, 42KTL) 
User Manual 
 
Copyright © Huawei Technologies Co., Ltd. 
 
Figure 5-34 Binding communications cables 
 
 
Step 7  Use a torque wrench with an open end of 33 mm to tighten the locking cap to a torque of 7.5 
N•m. 
----End 
Follow-up Procedure 
Check that the cables are connected correctly and securely. Then seal the connectors. 
5.5.3 (Optional) Connecting FE Communications Cables 
Description 
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. 
 
FE communication is optional for the SUN2000-36KTL. To use FE communication, contact local 
technical support. 
 
Figure 5-35 shows the communication mode for a single SUN2000.