Connecting Rs485 Communications Cables - Huawei SUN2000-42KTL User Manual

SUN2000-(36KTL,42KTL)
User Manual
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5.6.2 Connecting RS485 Communications Cables

Note
An RS485 communications cable can be connected in two ways:
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When laying out communications cables, separate them from power cables and keep them
away from strong signal sources to avoid communication interference.
Terminal Block Functions
Figure 5-23
Issue Draft A (2016-05-30)
If RS485 is used, do not connect the PLC CCO module to the AC power cable. In
addition, you need to set PLC Communication to Disable on the SUN2000 app.
PLC Communication is set to Enable by default.
Terminal block connection
You are recommended to use a DJYP2VP2-22 2x2x1 network cable or a
communications cable with a conductor cross-sectional area of 1 mm
diameter of 14–18 mm.
RJ45 network port connection
You are recommended to use a shielded RJ45 connector and a CAT 5E outdoor shielded
network cable with an outer diameter less than 9 mm and internal resistance not greater
than 1.5 ohms/10 m.
Select either connection mode during installation. Connecting to a terminal block is recommended.
shows an RS485 terminal block.
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5 Connecting Cables
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and cable outer
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