RS232 to Ethernet IP Support DNS DHCP Built-in webage Modbus Gateway USR-TCP232-302(American Standard)

Serial Adapters
Product Description
USR-TCP232-302, USR-TCP232-304 and USR-TCP232-306 are cost-effective serial to Ethernet converter. They
adopt Cortex-M0 solution, which has a main frequency up to 48MHz, providing fast transmission speed.
Equipped with RS232/RS485/RS422 serial port and 10/100M Ethernet port, those products can connect to variety
of serial devices to achieve transparent transmission via simple configuration to save manpower and shorten the
development cycle. These products are widely used in smart traffic, unattended Weighing, manufacturing
industry etc.
USR-TCP232-302, 304 and 306 are identical in software features, they both support transparent data
transmission, Modbus gateway, user-defined webpage, heartbeat packet, registration packet, index function etc.
In hardware, TCP232-302 is RS232 to Ethernet converter, TCP232-304 is RS485 to Ethernet, TCP232-306
supports RS485/RS232/RS422, but RS485/RS232/RS422 can't work at the same time.
Specifications
Model
USR-TCP232-302
USR-TCP232-304
USR-TCP232-306
Processor
ARM Cortex-M0, 48MHz
Power Supply
Power Input
DC: 5.0-7.0 V,Connector: DC 5.5*2.1 mm
DC: 5.0-7.0 V,Connector: DC 5.5*2.1 mm
DC: 5.0-36.0 V,Connector: 5.5*2.1 mm & 2 pin terminal block
Consumption
150mA5V
150mA5V
116mA5V,53mA@12V
Ethernet Port
Ethernet Port
1 x RJ45, 10/100Mbps, auto MDI/MDIX
Serial Port
Serial Port
RS232
RS485
RS232/485/422(Not work at the same time)
Baud Rate
600~230.4 Kbps
Data Bits
5,6,7,8
Stop Bit
1,2
Parity Bit
None, Odd, Even, Mark, Space
Serial Packeting
Packeting Time: Four-byte sending time
Packeting Length: 400 Bytes
Serial Packet Cache
Receive:2KBytes
Reload Button

Physical Parameters
Dimension(L*W*H)
66.3*70.0*25.0 mm
73.2*70.0*25.0 mm
98.0×86.0×25.0 mm
Installation
Wall Mounting
Operating Temp
-25~75
Storage Temp
-40~105
Operating Humility
5%~95% RH(non-condensing)
Storage Humility
5%~95% RH(non-condensing)
Indicators
None
None
PWR, WORK,LINK,TX,RX
Software
Network Protocol
IP, TCP/UDP, DHCP, RCMP, HTTP, IPv4, DNS
IP Mode
DHCP, STATIC IP
DNS Service

Config Method
AT Command, Built-in webpage,
Config Software, Config Protocol
Work Mode
Server/TCP Client/UDP Server
/UDP Client/Httpd Client
Modbus Gateway
Modbus RTU to Modbus , Multi-host Modbus Polling
User-Defined Webpage

Server
16 clients
Network Packet Cache
Send: 6K Bytes
Receive: 4K Bytes
Additional Features
RFC2217 Similar, Heartbeat Packet, Registration Packet, Index, No Data Restart
Others
EMC Level
IEC61000, Level 3(Surge, ESD, EFT)
Certificate

asic Function of 1 Port RS232 to Ethernet Converters
Fuction Diagram
UDP mode
RS232 to Ethernet converters USR-TCP232-302 will transmit serial data from serial device to target network device
by UDP connection. USR-TCP232-302 will listen to port and transmit all received data to serial device.
RS232 to Ethernet converters USR-TCP232-302 supports https Client mode which can transmit serial data
to the https server in https format(GET/POST).
Virtual Com Software
Baud Rate
Dynamically change baud rate, data bit, check bit and stop bit of serial device server via network command.
Identity packet function
When RS232 to Ethernet converterUSR-TCP232-302works as Client, it can send identity packet to server
which can be identification. Identity packet can be IMEI code, ICCID code and user editable identity packet.
Serial & Network Heartbeat Packet
RS232 to Ethernet converters USRTCP232302 maintainthe normal connection with the server by
sending heartbeat packet regularly.
Application
[ Unattended Weighing ]
Connect RS232 to Ethernet converters USR-TCP232-302 to barrier gate and they can realize
remote control of barrier