Table 2-10 RS485 pin definition
Pin
Description
1
2
RS485_T–
3
-
4
5
RS485_R–
6
GND
7
-
8
-
NO TE
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
UPS5000-E-(30 kVA–120 kVA)-FM
User Manual
2 Overview
Issue 03 (2022-01-30)
Copyright © Huawei Technologies Co., Ltd.
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