Port Definitions - Huawei SmartLogger1000 Quick Manual

6.1

Port Definitions

NOTICE
For the definitions of the communications ports on the devices such as the EMI and power meter,
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.
NOTE

For ease of operation, this document describes only the ports that need to be wired.
 Terminal block of types 1 and 2 are located in different models of SUN2000s.
 The RJ45 network port is located in all models of SUN2000s.
COM Port (SmartLogger)
Terminal Block Type 1 (SUN2000)
Terminal Block Type 2 (SUN2000)
Port Identifier
NC Reserved
NC Reserved
COM1
–
RS485B, RS485 differential signal–
+ RS485A, RS485 differential signal+
–
RS485B, RS485 differential signal–
COM2
+ RS485A, RS485 differential signal+
–
RS485B, RS485 differential signal–
COM3
+ RS485A, RS485 differential signal+
No. Port Definition
1 RS485A IN
2 RS485A OUT
3 RS485B IN
4 RS485B OUT
No. Port Definition
5 RS485A IN
6 RS485A OUT
7 RS485B IN
8 RS485B OUT
8
Function
Function
RS485A, RS485 differential signal+
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
RS485B, RS485 differential signal–
Function
RS485A, RS485
differential signal+
RS485A, RS485
differential signal+
RS485B, RS485
differential signal–
RS485B, RS485
differential signal–