Introduction of Serial to Ethernet Converter USR-DR302

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April 27, 2020 Introduction of Serial to Ethernet Converter USR-DR302

1.Brief introduction of serial to Ethernet converter USR-DR302

Modbus RS485 to Ethernet converter USR-DR302 can realize bidirectional transparent transmission between RS485 and Ethernet. It carries ARM processor, low power, fast speed, high stability. Via web-page or software, rs485 to Ethernet Converter can realize serial data and TCP/IP data package transparent transmission.

2 Features of serial to Ethernet converter USR-DR302

base on Cortex-M0 kernel, and reliable TCP/IP protocol stack

working temperature range from -40C ~85C
RJ45 port with 10/100Mbps

TCP server, TCP client, UDP server, UDP client, httpsD client and modbus TCP work mode

port baud rate can be set from 600bps to 460.8Kbps, parity: None, Odd, Even, Mark, Space

self-defined heartbeat package, keep the connection can never crash
self-defined registration package, check the station of the connection, which also can used as the self-defined package head, Users can use the MAC as the registration package.
the TCP server mode, the number of the client connected to the server can be set from 1-8, default 4. the IP of the client connected can be dispaly. Each connection calculates the data received/transmitted.
the TCP server mode, if the number of the clients number is 8, kick the old one or not can be set.

the parameters via the webpage, AT command, serial protocol and net protocol, provides setting protocol, and users can put into their software.

TCP client short connection, the disconnection interval can be set.
timeout restart( no data and restart), the restart time can be set.
the TCP connection build, client the buffer data or not can be set
DHCP, obtain the IP automatically.
global unique MAC address bought from IEEE, also users can define MAC address
DNS function, and analyze the domain name. The DNS server address can be set.
firmware via network.
USR-VCOM
hardware and software restore default settings

across the gateway, converter and the router
in LAN or in access the external net.

3.Basic function of serial to Ethernet converter USR-DR302

Classify	Parameter	Value
Hardware Parameters	Input Voltage	DC5～36V
	Working Current	130mA@5V
	Net interface format	RH45,10/1000Mbps
	Serial baud rate	600~460.8K(bps)
	Serial port	RS485*1
Software parameters	Net protocol	IPV4, TCP/UDP, ARP, ICMP, IPV4
	IP access way	Static IP, DHCP
	DDNS	supports
	User Configuring	Software configuring and webpage configuring AT command
	Transmit way	TCP server, TCP client, UDP server, UDP client
	Similar RFC2217	support
	httpsD client	support
	TCP server	At most support 8 TCP client to connection
	Net buffer	Send:16Kbyte; receive:4Kbyte
	Serial buffer	receive:1Kbyte
	Average delay	<10ms
	Related software	USR-VCOM, USR-cloud, set-up software
	Packaging mechanism	4 bytes packaging time, 1024 bytes packaging length.
Others	Certification	CE, FCC, ROHS
	Protection	1.5KV electromagnetic isolation
	Dimension	71.060.025.0mm(LWH)
	Operating Temp.	-40～+85°C
	Storage Temp	-40~105°C
	Operating Humidity	5～95%RH
	Storage Humidity	5～95%RH
	Packaging	Electrostatic bubble

4. Hardware Parameters of USR-DR302

Hardware Parameters of serial to Ethernet converter USR-DR302.jpg

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