Connecting The Rs485 Communications Cable - Huawei SUN2000-30KTL-US User Manual

SUN2000-(25KTL, 30KTL)-US
User Manual
The PLC (MBUS) communication mode is only applicable to medium-voltage grid
connection scenarios and non-low-voltage public grid connection scenarios (industrial
environment).

5.6.3 Connecting the RS485 Communications Cable

The RS485 communications cable can connect to the SUN2000 maintenance compartment
interior in a common way or through a pipe. For details about how to handle the bottom
waterproof connectors in these two methods, see
Prerequisites
Prepare materials based on the connection method.
Connection
Method
Outside the
Maintenanc
e
Compartme
nt
Connection
through a pipe
Common
connection
Connection
through a pipe
Issue 09 (2019-06-30)
The RS485 communications cable can connect to either a terminal block or an RJ45 network port in the
maintenance compartment. Use one connection mode in practice. Connecting to the terminal block is
recommended.
Connection
Port Inside
the
Maintenan
ce
Compartme
nt
Terminal
block
RJ45
network port
Copyright © Huawei Technologies Co., Ltd.
5.1 Common Cable Connection
Materials to Be Prepared

RS485 communications cable: You are advised to use
a DJYP2VP2-22 2x2x1 computer cable or a
communications cable with a conductor
cross-sectional area of 1 mm
outer diameter of 14–18 mm (0.55–0.71 in.).
 OT terminal: M4

The recommended pipe outer diameter is 33.66 mm
(1.32 in.).

RS485 communications cable: You are advised to use
a DJYP2VP2-22 2x2x1 computer cable or a
communications cable with a conductor
cross-sectional area of 1 mm
outer diameter of 14–18 mm (0.55–0.71 in.).
 OT terminal: M4

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
 The recommended pipe outer diameter is 33.66 mm
(1.32 in.).
5 Electrical Connections
Operations.
2
(or 18 AWG) and an
2
(or 18 AWG) and an
70