SUN2000 (8KTL-28KTL) 
User Manual 
 
Huawei Proprietary and Confidential                                     
Copyright © Huawei Technologies Co., Ltd. 
 
 
After the positive and negative connectors are in position, the clearance between the DC 
terminals and connectors should be less than or equal to 0.8 mm. 
----End 
Follow-up Procedure 
To remove the positive and negative connectors from the SUN2000, insert a removal wrench 
into the bayonet and press the wrench with an appropriate strength, as shown in Figure 5-24. 
 
 
Before removing the positive and negative connectors, ensure that the DC SWITCH is OFF. 
Figure 5-24 Removing a DC input connector 
 
 
5.4 Connecting Communications Cables 
This topic describes the functions of USB and RS485 ports and the method of connecting 
RS485 communications cables. 
5.4.1 Communications Port Description 
This topic describes the functions of the USB and RS485 ports. 
Overview 
The SUN2000 has three communications ports: USB port, RS485 IN port, and RS485 OUT 
port. They are on the left, upper right, and lower right respectively. For details, see (4), (5), 
and (6) in Appearance.