Huawei UPS5000-S-880 kVA User Manual page 44

UPS5000-S-880 kVA
User Manual (CMI)
Figure 2-21 RS485 pins
Table 2-10 RS485 pin definition
Pin
1
2
3
4
5
6
7
8
If cables are prepared onsite, follow the three methods below:



Issue 02 (2020-01-10)
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–.
Copyright © Huawei Technologies Co., Ltd.
Description
RS485_T+
RS485_T–
N/A
RS485_R+
RS485_R–
GND
N/A
N/A
2 Overview
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