Connecting The Rs485 Signal Spd - Huawei SmartLogger1000 Quick Manual

RJ45 Network Port (SUN2000)
RS485 Signal SPD
RS485 Surge
Protection Port
RS485 surge
protection port 1
RS485 surge
protection port 2
NOTE
1. Protection ports connect to COM ports on the SmartLogger. Port 4 is not connected.
2. Surge ports connect to RS485 ports on other devices. Port 3 is the ground port.
3. Protection ports and surge ports must not be confused.
4. One RS485 signal SPD can protect two COM ports.
5. Protection ports 2 and 6 and surge ports 1 and 5 form an RS485 surge protection port for
protecting one COM port. Protection ports 8 and 12 and surge ports 7 and 11 form another RS485
surge protection port for protecting one more COM port.
6.2

Connecting the RS485 Signal SPD

NOTE
The DJYP2VP2-22 2x2x1 computer cable or a communications cable with a conductor cross-
sectional area of 1 mm
No.
1 White and orange
2 Orange
3 White and green
4 Blue
5 White and blue
6 Green
7 White and brown
8 Brown
Protection
Port
2
6
8
12
2
and outer diameter of 14–18 mm is recommended.
Color
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+
RS485B, RS485
differential signal–
RS485A, RS485
differential signal+
RS485B, RS485
differential signal–
9
Function
Surge
Function
Port
RS485A, RS485
1
differential signal+
RS485B, RS485
5
differential signal–
RS485A, RS485
7
differential signal+
RS485B, RS485
11
differential signal–