Connecting The Rs485 Communications Cable - Huawei SmartLogger1000 Quick Manual

Connecting the RS485 Communications Cable

6.3
NOTE
1. Verify that the RS485 communications cable is not longer than 1000 meters.
2. A terminal block is recommended for connecting cables to the SUN2000. The following uses the
SUN2000-33KTL/40KTL terminal block as an example to describe cable connection.
3. When you connect a terminal block to the SUN2000, you are recommended to use a computer
cable (DJYP2VP2-22 2x2x1) or a communications cable with the conductor cross-sectional area
2
being 1 mm and the cable outer diameter in the range of 14 mm to 18 mm.
4. When you connect the RJ45 network port to the SUN2000, you are recommended to use the CAT
5E outdoor shielded network cable.
5. A dual-core shielded cable or outdoor shielded network cable is recommended for connecting the
SUN8000. Only two of the core wires need to be connected.
6. The delivered cables are recommended for connecting to devices such as the EMI, power meter,
and potential induced degradation (PID) module.
1. Remove an appropriate length of the steel armor and insulation layer from one end of the cable
using a wire stripper.
Unit: mm
2. Connect the cable to the surge port on the RS485 signal SPD.
3. Strip an appropriate length from the other end of the cable and connect the end to the SUN2000
terminal block.
RS485 signal SPD
11
NOTICE
1. Verify that the RS485A port on the
inverter connects to surge port 1 or 7
on the RS485 signal SPD, and that
the RS485B port on the inverter
connects to surge port 5 or 11 on the
RS485 signal SPD.
2. After connecting cables, wrap the part
without insulation layer using
insulation tape.