Huawei TP48200A-HX09A2 User Manual page 27

TP48200A-HX09A2, TBC300A-TCA2 Outdoor Power
System
User Manual
Port Type
Communications port
Communication Port
Table 2-10 COM communication port description
Communication
Port
COM port
NOTE
Figure 2-14 Pins in the COM port
Table 2-11 Pin definitions for the COM port
Pin
1
2
Issue 02 (2019-02-26)
Silk Screen
ALM4
ALM5
ALM6
ALM7
ALM8
COM
Communications
Parameter
Baud rate: 9600 bit/s,
19,200 bit/s, 115,200
bit/s
The COM port supports the security mechanism.
Copyright © Huawei Technologies Co., Ltd.
Description
RS485 port
Signal
RX+
RX-
Communications
Protocol
M/S and Modbus
protocol
Description
Receives data over RS485.
2 Components
Function
Connects to
lower-level
devices such as
the battery
inspection unit,
DC air
conditioner.
20