Huawei SUN2000-75KTL-C1 Quick Manual page 13

4.6
Installing the RS485 Communications Cable
1. When routing communications cables, separate communications cables from power cables to
prevent communication from being affected.
2. An RS485 cable can connect to either a terminal block or an RJ45 network port. It is
recommended that the RS485 cable connect to a terminal block.
Terminal Block Connection (Recommended)
The DJYP2VP2-22 2x2x1 computer cable or a communications cable with a conductor cross-
sectional area of 1 mm
1. Remove an appropriate length of the jacket
and core wire insulation layer from the
communications cable using a wire stripper.
3. Remove the cable terminal base from the
terminal block. Connect the communications
cable to the terminal base.
2
and outer diameter of 14–18 mm is recommended.
2. Route the cable through the cable gland.
No. Port Definition
1 RS485A IN
2 RS485A OUT
3 RS485B IN
4 RS485B OUT
12
Description
RS485A, RS485
differential signal+
RS485A, RS485
differential signal+
RS485B, RS485
differential signal–
RS485B, RS485
differential signal–