Optional) Connecting Signal Cables - Huawei SUN2000-2KTL-L1 User Manual

SUN2000-(2KTL-6KTL)-L1
User Manual

5.8 (Optional) 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 5-18 Signal cable ports
Table 5-3 COM port definition
No.
1
2
3
4
Issue 03 (2020-07-20)
NO TICE
Label Definition
485B1 RS485B, RS485
differential
signal–
485A1 RS485A, RS485
differential
signal+
485B2 RS485B, RS485
differential
signal–
485A2 RS485A, RS485
differential
signal+
Copyright © Huawei Technologies Co., Ltd.
Single SUN2000
Scenario
-
Used for connecting
to the RS485 signal
ports of the battery
and smart power
sensor. When both
battery and power
meter are
configured, they
need be crimped to
the 485B2 and
485A2 ports.
5 Electrical Connection
SUN2000 Cascading
Scenario
Used for connecting to
the solar inverters.
Used for connecting to
the RS485 signal ports
of the battery and
smart power sensor.
When both battery
and smart power
sensor are configured,
they need be crimped
to the 485B2 and
485A2 ports.
50