Huawei SMU01C User Manual page 12

SMU01C
User Manual
Communication Ports
Table 2-3 Communications port description
Communications
Ports
COM
RS485/RS232
NOTE:
The COM ports and RS485/RS232 ports work in active/standby mode. Either of them is at
work.
The RS485 and RS232 serial ports are mutually exclusive.
Figure 2-2 Pins of the RJ45 port
Table 2-4 COM or RS485/RS232 port pin definition
Pin
1
2
4
5
3
7
6
8
Issue 03 (2015-01-05)
Specifications
Supports RS485 and RS232 ports,
with baud rates 9600 bit/s and 19200
bit/s respectively.
Signal
TX+
TX-
RX+
RX-
RX232
TX232
PGND
-
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
2 Panel and Ports
Protocol Compliance
YDN protocol/Huawei
master slave protocol
Description
Sends data over RS485.
Receives data over RS485.
Receives data over RS232.
Sends data over RS232.
Ground
-
6