Huawei SUN2000-36KTL - Page 68

SUN2000-(33KTL-A, 36KTL, 42KTL)
User Manual
5 Connecting Cables
Issue 07 (2018-05-04)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
62
When laying out communications cables, separate them from power cables and keep them
away from strong signal sources to avoid communication interference.
Terminal Block Functions
Figure 5-26 shows an RS485 terminal block.
Figure 5-26 Terminal block
Table 5-5 describes functions of the RS485 terminal block.
Table 5-5 Functions of the RS485 terminal block
No.
Port Definition
Description
1
RS485A IN
RS485A, RS485 differential signal +
2
RS485A OUT
RS485A, RS485 differential signal +
3
RS485B IN
RS485B, RS485 differential signal –
4
RS485B OUT
RS485B, RS485 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.