Ethernet to UART | Industrial Modbus RTU to TCP Module-PUSR Store - Official Store for IoT Devices and IoT Modules

Ethernet Modules | Ethernet to Serial Modules

Price：
$

Model：
USR-K2/K3

specifi- cations：
USR-K3 USR-K2

Quantity：
- +

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Product Name：Ethernet Modules | Ethernet to Serial Modules

Model：USR-K2/K3

TTL to Ethernet Converter
Bidirectional Transparent Transmission

Powerful TI SoC with
Maximum Performance

The module adopts TI Cortex-M4 SoC
which can provide improved
performance and higher stability.

Function Block Diagram

Simplify IoT Development

Multiple User Scenario

Advanced Features

Registration Packet

The server can identify
different clients by using
registration packets.

Heartbeat Packet

Server can detect
abnormal disconnection
from the client using this
feature (K3 as an TCP client).

Customized RFC2217

Users can dynamically modify the baud rate of the K3 by
sending PUSR customized protocol over the network.

One More Thing, Modbus Gateway

Transfer between Modbus RTU and Modbus TCP protocol.
Support Modbus multihost polling.

Industrial-grade Design, Highly Reliable

Watchdog Protection

Built-in hardware watchdog，
7*24h stable operation
without downtime.

Wide Operating Temperature

-40℃ ~ +85℃

1.5KV Electromagnetic
Protection

Fully Enclosed Metal Protective Shield
Built-in Ethernet Isolation Transformer

Easy Configuration, Quick Start

Customized Webpage

With this feature, users can change logo, style,
company information and so on to advertise their
own brand and enhance their brand influence

Applications

Barrier Gate

Industrial
&
Automation

Energy System

Model	USR-K3		USR-K2
Processor	TI Cortex-M4		Atmel Cortex-M0
Frequency	120MHz		48MHz
Power
Power Supply	DC: 3.0~3.6V (3.3V is recommended)		DC: 3.0~3.6V (3.3V is recommended)
Consumption	110mA (Aver)@3.3V		136mA (Aver)@3.3V
Ethernet
Port Number	1 x RJ45
Rate	10 /100 Mbps, auto MDI/MDX
Protection	1.5KV electromagnetic isolation
Serial Port
Port Number	1 x TTL (3.3V TTL)
Baud rate	600 bps~1 Mbps		600bps~460.8Kbps
Data Bits	5, 6, 7, 8
Stop Bit(s)	1, 2
Parity Bit	None, Even, Odd, Space, Mark
Flow Control	Hardware: RTS/CTS		None
Serial Packet Cache	Send: 2K Bytes Receive: 2K Bytes		Receive: 800Bytes
Physical Character
Dimensions(mm)	33.0x19.0x19.2(LWH)
Operating Temperature	-40～85℃	-25 ~ 75℃
Storage Temperature	-40 ~120℃	-40 ~ 90℃
Operating Humility	5%～95%（non-condensing）
Storage Humility	5%～95%（non-condensing）
Basic Features
IP protocol	Static/DHCP
DNS	√
User-defined DNS	√
Built-in Webpage	√
Config Method	Built-in Webpage, Config Software, Open Config Protocol, AT Command
Work Mode	TCP Server/TCP client/UDP Server/UDP Client
HTTPD client	√
Modbus Gateway	Modbus RTU to Modbus TCP Multi-host Modbus polling
WebSocket	√		None
Max No. of Clients in TCPS	8		16
User-defined Webpage	√
RF2217 Similar	√
Registration Packet	√
Heartbeat Packet	√
Others
Certificate	CE, FCC, RoHS, *WEEE		CE, FCC, RoHS, WEEE
Warranty	1 year

after-sale guarantee

Working Time：

Monday to Friday 8:30-18:00 in Beijing time. Message us online for a quick response when we are on-work. Or you can leave a message. Our sales will contact you as soon as possible. You can get free technical support & professional support for your project on our technical support h.usriot.com. Get in touch with us via email at sales@usriot.com. We want to help with any questions you have.

Delivery：

We will deliver goods as soon as possible after we received the order. The order generated on weekend and holidays will be handled after back. We ship the goods with the following carriers TNT, DHL, FedEx, UPS, shipping agent.

Warranty：

We provide one year's warranty of modules and two year's warranty of cellular routers, cellular modems, serial device servers for any reason. If you believe the item is defective and under warranty, please submit a Return or Exchange request on the product's support page, or contact us at support@usriot.com.

—Network Infrastructure—

● Cellular Routers

● Industrial Switches

● Industrial Wireless

—Device Networking—

● Serial to Ethernet/WiFi

● Cellular Modems

● LoRa Network

● IoT Modules

—Edge Control—

● IoT Gateways

● Open Source Gateway

Development Kits

Ethernet Modules | Ethernet to Serial Modules

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