UPS5000-S-1600 kVA
User Manual
2 Overview
Issue 04 (2020-03-03)
Copyright © Huawei Technologies Co., Ltd.
36
Pin
Description
5
N/A
6
12V_PORT
Figure 2-20
RS485 pins
Table 2-9
RS485 pin definition
Pin
Description
1
2
RS485_T–
3
N/A
4
5
RS485_R–
6
GND
7
N/A
8
N/A
If cables are prepared onsite, follow the three methods below:
Connect pin 1 and pin 2. Pin 1 connects to RS485+ and pin 2 connects to RS485–.
Connect pin 4 and pin 5. Pin 4 connects to RS485+ and pin 5 connects to RS485–.
Connect pins 1, 2, 4, and 5. Twist cables to pin 1 and pin 4 into one cable and then connect it to
RS485+. Twist cables to pin 2 and pin 5 into one cable and then connect it to RS485–.