Huawei FusionModule2000 - Mdu

FusionModule2000 Smart Modular Data Center
Product Description
5 Power Supply and Distribution System
Issue 06 (2020-05-21)
Copyright © Huawei Technologies Co., Ltd.
39
Table 5-9 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–.
5.2.1.5 MDU
Appearance
Figure 5-34 MDU
(1) Status indicator
(2) LCD touchscreen