Huawei UPS5000-E Series - Mdu

UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
2 Overview
Issue 11 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
42
Table 2-10 RS485 pin definition
Pin
Description
1
RS485_T+
2
RS485_T–
3
N/A
4
RS485_R+
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–.
2.3.5 MDU
Appearance
Figure 2-27 MDU
(1) Status indicator
(2) LCD touchscreen
Table 2-11 Status indicator
Status
Color
Meaning