Mdu - Huawei UPS5000-E Series User Manual

UPS5000-E-(50 kVA-125 kVA)
User Manual (Integrated UPS 3.0)
Table 2-8 RS485 pin definition
Pin
1
2
3
4
5
6
7
8

2.3.5 MDU

Appearance
Figure 2-22 MDU
(1) Status indicator
Table 2-9 Status indicator
Status
Issue 09 (2019-12-20)
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–.
Color
Copyright © Huawei Technologies Co., Ltd.
Description
RS485_T+
RS485_T–
N/A
RS485_R+
RS485_R–
GND
N/A
N/A
(2) LCD touchscreen
Meaning
2 Overview
35