UPS5000-S-300 kVA User Manual
(3P3W, 200 V)
2 Overview
Issue 01 (2020-03-06)
Copyright © Huawei Technologies Co., Ltd.
35
Table 2-10
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–.
2.3.6 MDU
Appearance
Figure 2-22
MDU
(1) Status indicator
(2) LCD touchscreen
Table 2-11
Status indicator
Status
Color
Meaning