Huawei SUN2000L Series - Installing the Signal Cable

SUN2000L-(4.125KTL, 4.95KTL)-JP
User Manual
5 Electrical Connections
Issue 03 (2018-04-11)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
47
5.5 Installing the Signal Cable
Context
When laying out communications cables, separate them from power cables to avoid strong
signal interference sources.
Figure 5-17 COM port
Table 5-3 COM port pin definitions
No.
Label
Definition
Description
1
485B1
RS485B, RS485 differential
signal–
Cascades SUN2000Ls.
2
485A1
RS485A, RS485 differential
signal+
3
485B2
RS485B, RS485 differential
signal–
Cascades SUN2000Ls.
4
485A2
RS485A, RS485 differential
signal+
5
N/A
N/A
N/A
6
N/A
N/A
N/A
7
N/A
N/A
N/A
8
PE
Shielding ground
Connects to the shield layer of
the cable.