Table 2-4 Pin definitions for the RS485 port
Pin
Signal
Meaning
Description
1–3
NC
Reserved pin Northbound port, two-wire
RS485 communication
Supports the baud rate of 9600
bit/s.
4
A
Data+
5
B
Data–
6
NC
Reserved pin
7
NC
Reserved pin
8
GND
Signal
ground
Table 2-5 Pin definitions for the BMS port
Pin
Signal
Meaning
Description
1
A
Data+
Pins 1 and 4 are short-circuited;
pins 2 and 5 are short-circuited;
communicating with the lithium
battery
Supports the baud rate of 9600
bit/s.
2
B
Data–
3
NC
Reserved pin
4
A
Data+
5
B
Data–
6
NC
Reserved pin
7
NC
Reserved pin
8
GND
Signal
ground
2.5 Battery Module
The UPS uses 48 V lithium battery modules to provide backup power. Only the
ESM-48100B1 and ESM-48150B1 are applicable to the 6 kVA UPS. The 100 Ah and
150 Ah battery modules have the same panels and ports but different dimensions.
Figure 2-6 ESM-48100B1/48150B1 panel and ports
UPS2000-G-6KRTLL
User Manual
2 System Composition
Issue 01 (2020-08-06)
Copyright © Huawei Technologies Co., Ltd.
18
