Huawei ETP48400-C9A2 User Manual page 32

ETP48400-C9A2 Embedded Power
User Manual
Communication
Port
NOTE
Figure 3-8 Pins in the COM port
Table 3-10 Pin definitions for the COM port
Pin
1
2
4
5
6
3, 7, 8
Pins
Figure 3-9
Issue 05 (2020-04-07)
Communications
Parameter
19,200 bit/s, 115,200
bit/s
The COM port supports the security mechanism.
shows the pin numbers of the sensor ports.
Copyright © Huawei Technologies Co., Ltd.
Signal
RX+
RX-
TX+
TX-
PGND
None
Communications
Protocol
protocol
Description
Receives data over RS485.
Sends data over RS485.
Connects to the ground.
N/A
Table 3-11 defines the pins.
3 Components
Function
lower-level
devices such as the
battery inspection
unit, DC air
conditioner.
25