Huawei SUN2000-33KTL-US User Manual page 80

SUN2000-(33KTL, 36KTL, 40KTL)-US
User Manual
When laying out communications cables, separate them from power cables and avoid large
signal interference sources to protect communication from being affected.
Terminal Block Pin Definitions
Figure 5-39
Figure 5-39 Terminal block
Table 5-5
Table 5-5 Pin definitions of the RS485 terminal block
No.
1
2
3
4
Figure 5-40
Issue 07 (2019-06-20)
 If you choose common connection, ensure that the RS485 communications cable is available.
shows an RS485 terminal block.
describes pin definitions of the RS485 terminal block.
Port Definition
RS485A IN
RS485A OUT
RS485B IN
RS485B OUT
shows how to prepare an RS485 communications cable.
Copyright © Huawei Technologies Co., Ltd.
Description
RS485A, RS485 differential signal +
RS485A, RS485 differential signal +
RS485B, RS485 differential signal –
RS485B, RS485 differential signal –
5 Connecting Cables
73