Connecting A Signal Cable - Huawei SUN 2000 Series User Manual

SUN2000-4.95KTL-JPL0
User Manual

5.5 Connecting a Signal Cable

Context
When laying out a signal cable, separate it from the power cable to avoid strong signal
interference.
Figure 5-13 Signal cable port
Table 5-2 COM port pin definitions
No.
1
2
3
4
5
6
7
8
Issue 03 (2020-06-03)
Pin Definition
485B1 RS485B, RS485 differential
signal–
485A1 RS485A, RS485 differential
signal+
485B2 RS485B, RS485 differential
signal–
485A2 RS485A, RS485 differential
signal+
N/A N/A
N/A N/A
PE Shielding ground
PE Shielding ground
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
Description
Cascades solar inverters for
RS485 communication.
Cascades solar inverters for
RS485 communication.
N/A
N/A
Connects to the shielding
layer of cables.
Connects to the shielding
layer of cables.
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