Huawei SUN2000-50KTL-M0 Quick Manual page 14

Terminal Block Connection (Recommended)
1. Remove an appropriate length of the jacket and core wire insulation layer from the
communications cable using a wire stripper.
2. Route the cable through the cable gland.
4. Install the terminal base on the terminal block,
and connect the shield layer to the ground
point.
3. Remove the cable terminal base from the
terminal block. Connect the
communications cable to the terminal base.
No. Port Definition
1 RS485A IN
2 RS485A OUT
3 RS485B IN
4 RS485B OUT
5. Bind the communications cable.
13
Description
RS485A, RS485
differential signal+
RS485A, RS485
differential signal+
RS485B, RS485
differential signal–
RS485B, RS485
differential signal–