Huawei ETP4830-A1 User Manual page 24

ETP4830-A1
User Manual
Table 3-7 Communications ports
Port
COM
RS485/RS232
Note:
All the preceding ports are protected by a security mechanism.
Figure 3-9 Communication port
Table 3-8
Table 3-8 Pins in the RS485/RS232 port
Pin
1
2
4
5
3
7
6
8
Issue 06 (2014-02-20)
Communications Mode
FE
RS485/RS232
RS485/RS232
describes the pins in the COM port and RS485/RS232 port.
Signal
TX+
TX-
RX+
RX-
RX232
TX232
PGND
None
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3 Components
Communications
Parameters
Autonegotiation
Baud rate: 9600 bits/s or
19,200 bits/s
Baud rate: 9600 bits/s or
19,200 bits/s
Description
Sends data over RS485.
Receives data over RS485.
Receives data over RS232.
Sends data over RS232.
Connects to the ground.
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