SmartLogger1000
User Manual
4 Electrical Connections
Issue 12 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
38
Figure 4-17
COM port on the SUN2000L
Table 4-7
COM port pin definitions
No.
Label
Definition
1
485B1
RS485B, RS485 differential
signal–
2
485A1
RS485A, RS485 differential
3
485B2
RS485B, RS485 differential
signal–
4
485A2
RS485A, RS485 differential
5
N/A
N/A
6
N/A
N/A
7
N/A
N/A
8
PE
Port for grounding the shield
layer
shows how the SmartLogger connects to the SUN2000L through an RS485 signal
SPD.