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Din-Rail Modem USR-DR504-G


5 in stock (can be backordered)

Din Rail RS485 Industrial cellular Modems


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Din-Rail Modem USR-DR504-G Introduction

Din-Rail Modem USR-DR504-G mounted RS485 industrial cellular modems with sim card slot USR-DR504-G with global bands can realize the data transmission between RS485 and 4G Network. Din rail industrial modems USR-DR504-G are ideal for M2M and IoT applications—such as distribution automation, smart metering, water & wastewater, heating, street light monitoring and etc.

  • Global Bands, Covering Global Regions.
  • DIN-Rail Mounted with sim card slot

Functional Structure

  • Transparent Transmission.
    • Provide data two-way transparent transmission between field serial devices and the central control server.
    • Support 2 Socket connections, support TCP Client and UDP.
    • Support custom heartbeat package and registration package.
  • httpd Client.
    • submit serial data to the designated server by HTTP (GET/POST) method.
  • Modbus RTU to TCP.
    • Modbus RTU/Modbus TCP protocol conversion for industrial SCADA systems and field devices.
  • Registration Package plus Heartbeat Package.
    • The registration packet is sent to the server to identify the device.
    • The heartbeat packet is used to judge the active state of the device when sent to the server, and actively collect data when sent to the serial terminal.
    • The contents of registration package and heartbeat package, heartbeat interval can be modified by AT command.


  • Data Collection of Distribution Boxes.
  • Electric Fire Monitoring System.
  • Intelligent Remote Distribution Box Monitoring Solution.
SKU: Modem USR-DR504-G Categories: , , ,
Models USR-DR504-G
LTE Category LTE Cat.4
Frequency Bands LTE FDD B1/B2/B3/B4/B5/B7/B8/B12/
LTE TDD B38/B39/B40/B41
WCDMA B1/B2/B4/B5/B6/B8/B19
GSM B2/B3/B5/B8
Transmission Speed LTE-FDD 150Mbps(DL)/50Mbps(UL)
LTE-TDD 130Mbps(DL)/30Mbps(UL)
DC-HSDPA 42Mbps (DL)
HSUPA 5.76Mbps (UL)
WCDMA 384Kbps(DL)/ 384Kbps(UL)
GSM(EDGE) 296Kbps (DL)/ 236.8Kbps (UL)
GSM (GPRS) 107Kbps (DL)/ 85.6Kbps (UL)
Serial Parameters Interface RS485(Terminal)*1
Data Bits 8
Stop Bits 1,2
Baud Rate 2400~230400
Physical Interfaces SIM/USIM card 1.8V/3V
Antenna SMA Female
Reload Button
Reset /
Hardware Characteristics Input Voltage 9V~36V
Connector Terminal
Housing material ABS Plastic
Dimensions(mm) 44.5×31.8×13.94
Operating temperature -30℃~+75℃
Storage Temperature -40℃~+85℃
Operating humidity 5%~95%
Storage humidity 5%~95%
Software Protocol TCP/UDP/DNS/HTTP/FTP
Serial to network 2 sockets, default A
Configuration Serial, Net, SMS AT commands
Cache 5 packets
Packaging mechanism Packaging time(ms) 100~60000,default100
Packaging length(byte) 100~1000,default 1000

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