Huawei UPS5000-A User Manual page 79

UPS5000-A-(60 kVA-120 kVA)-H
User Manual
Figure 3-42 RS485 pins
Table 3-8 Pin definition
Pin
1
2
3
4
5
6
7
8
If cables are prepared onsite, follow the three methods below:



Step 2 Connect the network port on a PC to the FE port.
Step 3 (Optional) Connect the RJ11 port on the temperature and humidity sensor to the COM1 port.
Figure 3-43
Issue 05 (2020-01-10)
Connect pin 1 and pin 2. Pin 1 connects to 485+ and pin 2 connects to 485–.
Connect pin 4 and pin 5. Pin 4 connects to 485+ and pin 5 connects to 485–.
Connect pins 1, 2, 4, and 5. Twist cables to pin 1 and pin 4 into one cable and then connect it to
485+. Twist cables to pin 2 and pin 5 into one and then connect it to 485–.
shows the RS485 port pins and
Copyright © Huawei Technologies Co., Ltd.
Description
RS485_T+
RS485_T-
N/A
RS485_R+
RS485_R-
GND
N/A
N/A
Table 3-9 describes the pin definitions.
3 Installation
71