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Multifunctional serial to Ethernet module user manual
www.usriot.com
Jinan USR IOT Technology Co., Ltd
Page22
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9
2
VCC
DC3.3V(you must choose only one supply between
5V or 3.3V)
3
GND
ground
4
RST
Reset pin(give a constant 200ms low level make
module reset)
5
TXD0
Data transmit pin for comm port 0
6
RXD0
Data receive pin for comm port 0
7
Reload
Pin to make module back to factory default
parameters(take this pin to low , then power off and
on, keep this pin down for 2 seconds, then release it)
8
WORK
WORK LED indicate, it will toggle every 1 second
9
CTS0
Clear to send
10
RTS0
Request to send(also muxed as RS485 enable tx pin,
enable it from software in )
11
RXD1
Data receive pin for comm port 1
12
TXD1
Data transmit pin for comm port 1
Diagram 4-2 pin description
Download is pin position for TCP232-E2, if you want accurate footprint, please see the pcb
library file
http://www.usriot.com/Download/221.html
http://www.usriot.com/Download/221.html
http://www.usriot.com/Download/221.html
http://www.usriot.com/Download/221.html
Diagram 4-3 pin position