USR-DR132/134 | “Lipstick” Size Serial Server Device The USR-DR132/134 is an ultra-small size serial server device with one serial port. It can realize transparent transmission between RS485/RS232 and Ethernet ports. It supports edge computing, Modbus gateway and rich protocol such as MQTT/TCP/UDP/HTTP etc.. For its small size and rich software functions, it can widely used in solar energy, smart factory, intelligent meter, gate access control system and etc.
Key Features
  • “Lipstick” Size: Save Your Space
  • Rich Protocols: MQTT/TCP/UDP/HTTP/DHCP/DNS
  • Modbus Gateway: Modbus TCP/RTU conversion, Modbus RTU to JSON
  • Easy Config: AT command, built-in webpage, config utility
  • Edge computing: Up to 25 points
  • User-defined Webpage: User can define the webpage style as need
Serial to Ethernet,
Bidirectional Transparent Data Tata Transmission With serial device server, traditional serial devices can be connected to local networks and the Internet Then users can transform traditional serial device into loT device.
Exceptional Craftsmanship, Going Beyond the Norm Don't be fooled by its size—our device features a 4-layer board design engineered to provide uncompromising protection in tight spaces.
One More Thing, Modbus Gateway Connect to PLC, SCADA system or user’s private server to achieve local or remote motoring.
  • Protocol Conversion: Modbus TCP/RTU Protocol conversion.
  • Modbus Polling: Active querying and RTU/Json reporting.
  • Multi-Host Polling: support multiple hosts to query simultaneously.
Edge Acquisition at Millisecond-Level Pre-configured acquisition data points, supporting reporting/querying data in Json format via TCP/MQTT connection.
MQTT Gateway USR-DR13X support standard MQTT protocol, and can connect to AWS, Thingboard and other public standard MQTT platform and user’s private MQTT servers using MQTT protocol to achieve remote monitoring of the field serial device.
Multiple User Scenarios
  • Multi-user Access
    • In TCP server mode, it suppports multiple TCP clients access, so it can realize multi-user control of serial devices.
  • Multi-device Management
    • The USR-DR132/134 device connects to the central server for centralized management of serial devices.
Multiple User Scenarios
  • Virtual-COM Software
    • This feature can infinitely extend the serial cable,allowing communication to no longer be limited by distance.
  • Point-to-Point Communication
    • Using this method, it is possible to achieve data communication between two serial devices.
Additional Features
  • Heartbeat Packet
    • Server can detect abnormal disconnection from the client using this feature（DR3X as an TCP client).
  • Registration Packet
    • The server can identify different clients by using registration packets.
Ultra-small Size
  • 3 Practical Designs, Easy Your Installation.
  • Ultra-small size like a lipstic, can be applied to various scenarios, especially the small box.
  • Appearance patent No.202130367085.8.
Easy connection Push-type, pluggable wire connector, easy wiring, no need for additional tools such as screwdrivers.
  • Push wire connector
  • Pluggable wire connector
High Reliablity Design
  • Watchdog Protection
    • Hardware & software dual watchdog to ensure stable operation.
  • Auto Re-Connection
    • Automatically monitor connection status, reconnect once disconnet.
  • Wide Operating Temp
    • -40℃ ~ 85℃, industrial grade design, stable operation in harsh environments.
Applications The card reader or video input device is connected to the USR-DR13X via a serial port. The serial port server transmits the serial device information over the local area network to the central control system. After information comparison, the central control system determines whether to allow personnel in and out of the access control system.