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SUN2000-4.95KTL-NHL2
User Manual
5.6 Connecting Signal Cables
Context
When laying out signal cables, separate them from power cables and keep them
away from strong interference sources to prevent communication interruption.
Figure 5-16 Signal cable ports
Table 5-3 COM port definition
No
.
1
2
3
4
5
6
7
8
Issue 01 (2021-06-20)
NO TICE
Label
Definition
485B
RS485B, RS485 differential
1
signal–
485A
RS485A, RS485 differential
1
signal+
485B
RS485B, RS485 differential
2
signal–
485A
RS485A, RS485 differential
2
signal+
GND
GND
DI
DI signal
PE
Shielding ground
PE
Shielding ground
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connection
Description
Used for cascading solar inverters or
connecting to the JX01 terminal
block of the 10-in 1-out
SmartACBox.
Used for cascading solar inverters or
connecting to the JX01 terminal
block of the 10-in 1-out
SmartACBox.
Reserved GND
Reserved, connecting to the positive
terminal of the DI.
Shielding layer
Shielding layer
44
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