Huawei SUN2000-17KTL - Installation; 4.1 Checking Before Installation

24
Communications Port Signal Definitions
Before Replacement
-RJ45
Network Port
Before Replacement-
Terminal Block
SUN2000
-(15KTL-50KTL)-M3 Series
(COM Port)
No.
Color
Function
No.
Function
No.
Definition
Function
1
White and
orange
RS485A
5
RS485A IN
1
485A1
-1
RS485 differential
signal +
4
Blue
RS485A
6
RS485A OUT
2
485A1
-2
RS485 differential
signal +
2
Orange
RS485B
7
RS485B IN
3
485B1
-1
RS485 differential
signal
–
5
White and blue
RS485B
8
RS485B OUT
4
485B1
-2
RS485 differential
signal
–
–
–
–
–
–
5
PE
Shield layer
grounding
–
–
–
–
–
6
PE
Shield layer
grounding
Before Replacement-
Network Port
After
Replacement
Before Replacement-
Terminal Block
The figures show the RJ45 connector when
the surface without the fastener faces
upwards. If the colors and functions of the
wires are different, connect the wires based
on their functions.
6
Connecting Signal Cables