Huawei SmartLogger2000 User Manual page 47

SmartLogger2000-(10-C, 11-C)
User Manual
Figure 4-6 COM ports of the SmartLogger
Table 4-1 COM port description
Port
COM1
COM2
COM3
COM4
COM5
COM6
The RS485 terminal block or RJ45 port on the SUN2000 is used for RS485 communication.
There are two types of RS485 terminal blocks located in different models of SUN2000s.

Issue Draft A (2017-02-15)
Identifier
+
-
+
-
+
-
+
-
+
-
+
-
Terminal block connection
− Terminal block 1
Figure 4-7 shows the position of the terminal block in the SUN2000-50KTL.
4-2 describes the functions of the terminal block.
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Function
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
4 Electrical Connection
Table
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