Connecting Signal Cables - Huawei SUN2000 MB0 Series User Manual

SUN2000-(12K-25K)-MB0 Series
User Manual

5.5 Connecting Signal Cables

COM Port Pin Definitions
● When laying out a signal cable, separate it from power cables and keep it away
● Ensure that the protection layer of the signal cable is inside the connector,
● If the Smart Dongle is configured, you are advised to install the Smart Dongle
Figure 5-14 Pin definitions
Pi
n
1
Issue 01 (2023-04-30)
NO TICE
from strong interference sources to prevent communication interruption.
surplus core wires are cut off from the protection layer, the exposed core wires
are inserted completely into the holes, and the cable is connected securely.
before connecting the signal cable.
Defini Function
tion
485A1 RS485A,
-1 RS485
differential
signal+
Copyright © Huawei Digital Power Technologies Co., Ltd.
Descriptio Pi Definit
n n ion
For inverter 2 485A1-
cascading 2
or
connecting
to the
RS485
signal port
of a
5 Electrical Connections
Function Descripti
on
RS485A, For
RS485 inverter
differenti cascading
al signal+ or
connectin
g to the
RS485
signal
port of a
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