Huawei SUN2000-50KTL-M0 User Manual page 71

SUN2000-(50KTL, 60KTL, 65KTL)-M0
User Manual
Table 5-5 Port definitions of the RS485 terminal block
RS Port Function
48 Defini
5_1 tion
1 RS485 RS485A,
A IN differential
signal+
2 RS485 RS485A,
A OUT differential
signal+
3 RS485 RS485B,
B IN differential
signal–
4 RS485 RS485B,
B OUT differential
signal–
Connecting Cables to the Terminal Block
Step 1 Remove an appropriate length of the jacket and core wire insulation layer from
the communications cable using a wire stripper.
Figure 5-25 Stripping an RS485 communications cable
Step 2 Route the communications cable through the cable gland.
Issue 11 (2024-02-02)
Description
An RS485 port
used for
connecting an
inverter or
SmartLogger.
NO TE
The cable connection method for the RS485_1 terminal block is the same as that for the
RS485_2 terminal block. The RS485_1 terminal block is used as an example in this
document.
Copyright © Huawei Technologies Co., Ltd.
RS48 Port
5_2 Definitio
n
5 RS485A
IN
6 RS485A
OUT
7 RS485B
IN
8 RS485B
OUT
5 Electrical Connections
Function Description
RS485A, An RS485
differential port used for
signal+ connecting a
tracking
system or
DTSU666-H.
RS485A, -
differential
signal+
RS485B, An RS485
differential port used for
signal– connecting a
tracking
system or
DTSU666-H.
RS485B, -
differential
signal–
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