Huawei UPS2000-G-6KRTLL - Communications Ports

NO TE
● The RS485 port supports only the Modbus RTU protocol.
● The USB port and RS232 port cannot be used at the same time.
a: The USB port supports the serial port communications protocol. The USB port can be
used to export logs and send serial port commissioning commands.
b: The RS232 port supports the serial port communications protocol. The RS232 port can
be used to export logs, send serial port commissioning commands, and upgrade the UPS
main power program online.
2.4 Communications Ports
Figure 2-4 RS232 port pins
Table 2-3 RS232 port pin denitions
Pin
Meaning
1 Reserved
2 UPS transmit terminal for RS232
data communication
3 UPS receive terminal for RS232
data communication
4 Reserved
5 Common terminal for RS232 data
communication
6–9 Reserved
Figure 2-5 RS485/BMS port pins
UPS2000-G-6KRTLL
User Manual 2 System Composition
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 15