Huawei SmartLogger2000 User Manual page 52

SmartLogger2000
User Manual
Table 4-3 Functions of the RS485 terminal block
No.
1
2
3
4
(2016-06-20)
Figure 4-13 Terminal block
− Other models of SUN2000s
Figure 4-14 shows the position of the terminal block in the
SUN2000-33KTL/40KTL. Figure 4-15 describes the functions.
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Port Definition
RS485A IN
RS485A OUT
RS485B IN
RS485B OUT
4 Connecting Cables
Function
RS485A, for RS485 positive
differential signaling
RS485A, for RS485 positive
differential signaling
RS485B, for RS485
negative differential
signaling
RS485B, for RS485
negative differential
signaling
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