SUN2000-(25KTL, 30KTL)-US
User Manual
5 Electrical Connections
Issue 03 (2017-04-01)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
70
Connection
Method
Outside the
Maintenance
Compartment
Connection
Port Inside the
Maintenance
Compartment
Materials to Be Prepared
Connection
through a pipe
Terminal block
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
2
(or 18 AWG) and
an 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.).
Common
connection
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
2
(or 18 AWG) and
an outer diameter of 14–18 mm (0.55–0.71 in.).
OT terminal: M4
Connection
through a pipe
RJ45 network
port
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.).
Common
connection
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
Context
When routing communications cables, ensure that they are separate from power cables and
away from interfering source to prevent communication from being affected.
Pin definitions of the RS485 terminal block