SmartLogger1000
User Manual
4 Electrical Connections
Issue 12 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
32
Figure 4-9
Position of the terminal block in the SUN2000
Table 4-3
Functions of the RS485 terminal block
No.
Port Definition
Function
1
RS485A IN
RS485A, for RS485 positive differential
signaling
2
RS485A OUT
RS485A, for RS485 positive differential
signaling
3
RS485B IN
RS485B, for RS485 negative differential
signaling
4
RS485B OUT
RS485B, for RS485 negative differential
signaling
−
Terminal block 2
shows the position of the terminal block in the
SUN2000-33KTL/40KTL.
describes the functions of the terminal
block.