Huawei SUN2000-30KTL-US User Manual page 78

SUN2000-(25KTL, 30KTL)-US
User Manual
Connection
Method
Outside the
Maintenanc
e
Compartme
nt
Common
connection
Context
When routing communications cables, ensure that they are separate from power cables and
away from interfering source to prevent communication from being affected.

Table 5-4 Pin definitions of the RS485 terminal block
Definition
Dry contact input
Issue 09 (2019-06-30)
Connection
Port Inside
the
Maintenan
ce
Compartme
nt
Pin definitions of the RS485 terminal block
Figure 5-24 Terminal block
Table 5-4 describes pin definitions of the RS485 terminal block.
Port
Number
1
2
Copyright © Huawei Technologies Co., Ltd.
Materials to Be Prepared
 RS485 communications cable: You are advised to use
a CAT 5E outdoor shielded network cable with an
outer diameter less than 9 mm (0.35 in.) and an
internal resistance not greater than 1.5 ohm/10 m (1.5
ohm/393.70 in.).

RJ45 connector
Function
DI+
DI–
5 Electrical Connections
Description
Dry contact input+
Dry contact input–
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