
ETP4830-A1 Embedded Power
User Manual
3 Components
Issue 10 (2017-08-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
17
Port
Communications Mode
Communications
Parameters
RS485/RS232
RS485/RS232
Baud rate: 9600 bits/s or
19,200 bits/s
NOTE
All the preceding ports are protected by a security mechanism.
Figure 3-8
Communications port
Table 3-10
describes the pins in the COM port and RS485/RS232 port.
Table 3-10
Pins in the RS485/RS232 port
Pin
Signal
Description
1
TX+
Sends data over RS485.
2
TX-
4
RX+
Receives data over RS485.
5
RX-
3
RX232
Receives data over RS232.
7
TX232
Sends data over RS232.
6
PGND
Protective grounding.
8
Reserved
N/A