Terminal Block Connection - Huawei SUN2000 Series User Manual

SUN2000-(90KTL-100KTL) Series
User Manual

When laying out communications cables, separate them from power cables to avoid strong
signal interference sources.

5.6.2.1 Terminal Block Connection

Terminal Block Port Definitions
Figure 5-20
Figure 5-20 Terminal block
Table 5-3 Port definitions of the RS485 terminal block
No.
1
2
3
Recommended: DJYP2VP2-22 2x2x1 PC cable or communications cable with a
conductor cross-sectional area of 1 mm
RJ45 network port connection
Recommended: CAT 5E outdoor shielded network cable with an outer diameter less than
9 mm and internal resistance no greater than 1.5 ohms/10 m, with a shielded RJ45
connector
Select only one installation mode in practice. Terminal block connection is recommended.
shows an RS485 terminal block.
Port Definition
RS485A IN
RS485A OUT
RS485B IN
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2
and a cable outer diameter of 14–18 mm.
Description
RS485A, differential signal+
RS485A, differential signal+
RS485B, differential signal–
5 Electrical Connections
47