"Lipstick" Size Serial Device Server

Serial to Ethernet Converters | Modbus RTU to Modbus TCP Converters

  • Price:
  • $
  • Model:
  • USR-DR132/DR134
  • Quantity:
  • - +

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Product Name:"Lipstick" Size Serial Device Server

  • Model:USR-DR132/DR134

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 timeout restart, DHCP, DNS and other advanced features such as heartbeat packet, registration packet etc. It can make it easy for data transmitting of the field serial device.

Key Features

● Lipstick” Size: Save Your Space

● Rich Protocols: TCP/UDP/HTTP/DHCP/DNS

● Modbus Gateway: Modbus TCP/RTU conversion, Modbus RTU to JSON

● Easy Config: AT command, built-in webpage, config utility

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.

Ingenious Design, Beyond Ordinary

In a space no larger than a finger, multiple industrial-grade components are integrated to ensure the stable operation of the product.

One More Thing, Modbus Gateway

Connect to PLC, SCADA system or user’s private server to achieve local or remote motoring.

Multiple User Scenarios

  • ● Multi-user Access
    In TCP server mode, it suppports multiple TCP clients acess, 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 number: 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.

  • ● EMC Protection: Level 2.

  • ● Auto Re-Connection Automatically monitor connection status, reconnect once disconnet.

  • ● Wide Operating Temp -40℃ ~ 85℃, industrial grade design, stable operation in harsh environments.


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.




Cellular Wireless RouterPower Supply

Cellular Wireless RouterPower Input

Cellular Wireless Router5-24V DC

Cellular Wireless RouterWorking Current


Cellular Wireless RouterPower Interface

Cellular Wireless RouterPush-type Connector

Cellular Wireless RouterHardware Interface

Cellular Wireless RouterEthernet Port

Cellular Wireless Router1*RJ45, 10/100Mbps, auto MDI/MDIX

Cellular Wireless RouterSerial Pors

Cellular Wireless Router USR-DR132: 1*RS232
Cellular Wireless Router USR-DR134: 1*RS485

Cellular Wireless RouterBaud Rate

Cellular Wireless Router600~230.4K

Cellular Wireless RouterData bits

Cellular Wireless Router7, 8

Cellular Wireless RouterStop bit

Cellular Wireless Router1, 2

Cellular Wireless RouterParity bit

Cellular Wireless Router Odd, Even, Mark, Space supported when data bits are 7;
Cellular Wireless Router None, Odd, Even supported when data bits are 7

Cellular Wireless RouterReload Button

Cellular Wireless RouterReset to factory settings

Cellular Wireless RouterIndicators

Cellular Wireless RouterPOW, WORK, COM, LINK

Cellular Wireless RouterPhysical Parameters

Cellular Wireless RouterEMC Protection

Cellular Wireless Router IEC 61000-4-2(ESD): Level 2
Cellular Wireless Router IEC 61000-4-4(EFT): Level 2
Cellular Wireless Router IEC 61000-4-5(Surge): Level 2

Cellular Wireless RouterDimension

Cellular Wireless Router74*24*22 mm

Cellular Wireless RouterInstallation

Cellular Wireless Router 35mm DIN-Rail,
Cellular Wireless Router Mounting Hole

Cellular Wireless RouterOperating Temprature

Cellular Wireless Router-40~85℃

Cellular Wireless RouterStorage Temprature

Cellular Wireless Router-40~105℃

Cellular Wireless RouterOperating Humidity

Cellular Wireless Router5%~95% RH(non-condensing)

Cellular Wireless RouterStorage Humidity

Cellular Wireless Router5%~95% RH(non-condensing)

Cellular Wireless RouterSoftware

Cellular Wireless RouterNetwork Protocols

Cellular Wireless RouterTCP/UDP/HTTP/IPV4/ICMP/DHCP/ARP

Cellular Wireless RouterIP Address

Cellular Wireless RouterDHCP, Static

Cellular Wireless RouterDNS

Cellular Wireless RouterConfigurable DNS

Cellular Wireless RouterConfiguration

Cellular Wireless RouterAT Command, Built-in webpage, Config Utility

Cellular Wireless RouterWork Mode

Cellular Wireless RouterTCP Client, TCP Server, UDP Client, UDP Server, HTTP Client

Cellular Wireless RouterModbus Gateway

Cellular Wireless Router Modbus RTU/TCP protocol conversion,
Cellular Wireless Router Modbus Polling,
Cellular Wireless Router Modbus RTU to Json

Cellular Wireless RouterTCP Server

Cellular Wireless RouterUp to 16 clients

Cellular Wireless RouterPackaging mechanism

Cellular Wireless Router Packaging Time: 4-byte data transmission time
Cellular Wireless Router Packaging Length: 400 Bytes

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