SUN2000-(30KTL-A, 33KTL, 40KTL)
User Manual
5 Electrical Connections
Issue 04 (2016-06-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
62
Figure 5-28
RJ45 connector
Table 5-5
RJ45 connector pin definitions
Pin
Function
1
RS485A, RS485 differential
2
RS485B, RS485 differential signal –
3
N/A
4
RS485A, RS485 differential
5
RS485B, RS485 differential signal –
6
N/A
7
N/A
8
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, as shown in
Figure 5-29
.
Figure 5-29
Stripping an RS485 communications cable
b.
Remove the locking caps from the
COM1
and
COM2
waterproof cable connectors
at the inverter bottom and remove the plugs from the locking caps.