Huawei SmartLogger2000 series Quick Manual page 19

Terminal Block Type 2 (SUN2000)
RJ45 Network Port (SUN2000)
5.2 Connecting an RS485 Communications Cable
NOTE
1. Ensure that the RS485 communication distance is within 1000 meters.
2. The SmartLogger cable terminal block can connect to a cable with the maximum cross-sectional
2
area of 2.5 mm .
3. A terminal block is recommended for connecting cables to the SUN2000. The following uses the
SUN2000-50KTL/50KTL-C1 terminal block as an example to describe cable connection.
4. When you connect a terminal block to the SUN2000, you are advised to use a computer cable
(DJYP2VP2-22 2x2x1) or a communications cable with the conductor cross-sectional area of 1
2
mm and the cable outer diameter in the range of 14 mm to 18 mm.
5. When you connect the RJ45 network port to the SUN2000, you are advised to use the CAT 5E
outdoor shielded network cable.
5
6
7
8
No. Color
1 White orange
2 Orange
3 White green
4 Blue
5 White blue
6 Green
7 White brown
8 Brown
18
No. Port Definition
RS485A IN
RS485A OUT
RS485B IN
RS485B OUT
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
N/A
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
N/A
N/A
N/A
Function
RS485A, RS485
differential signal+
RS485A, RS485
differential signal+
RS485B, RS485
differential signal–
RS485B, RS485
differential signal–
Function