SUN2000-(33KTL, 40KTL)-JP
User Manual
6 Electrical Connections (12-pin Spot-Check Terminal)
Issue 07 (2019-06-30)
Copyright © Huawei Technologies Co., Ltd.
86
Table 6-4
Functions of the RS485 terminal block
No.
Port Definition
Description
5
RS485A IN
RS485A, RS485 differential
6
RS485A OUT
RS485A, RS485 differential
7
RS485B IN
RS485B, RS485 differential signal–
8
RS485B OUT
RS485B, RS485 differential signal–
RJ45 connector pin definitions
Figure 6-24
RJ45 connector
Table 6-5
RJ45 connector pin definitions
Pin
Color
Pin Definition
1
White and orange
RS485A, RS485 differential
2
Orange
RS485B, RS485 differential signal–
3
White and green
N/A
4
Blue
RS485A, RS485 differential
5
White and blue
RS485B, RS485 differential signal–
6
Green
N/A
7
White and brown
N/A
8
Brown
N/A
Procedure
Method 1: Connecting to a terminal block (recommended)
a.
Remove an appropriate length of the jacket and core wire insulation layer from the
communications cable using a wire stripper.