Port Definitions - Huawei SmartLogger2000 Quick Manual

6.1

Port Definitions

NOTICE
For the definitions of the communications ports on the devices such as the EMI, power meter, and
box-type transformer, see the documents delivered with the devices. When connecting cables,
ensure that RS485+ connects to the COM+ port on the SmartLogger and that RS485– connects to
the COM– port on the SmartLogger.
COM Port (SmartLogger)
No. Port
1 COM1
2 COM2
3 COM3
4 COM4
5 COM5
6 COM6
Terminal Block (SUN2000-50KTL/50KTL-C1)
Symbol 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–
Port
No.
Definition
1 RS485A IN
2 RS485A OUT RS485A, RS485 differential signal+
3 RS485B IN
4 RS485B OUT RS485B, RS485 differential signal–
12
Function
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–