Din rail 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

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

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.

Parameter Name	Parameter Value
Type	data cellular DTU packet
Network	4G RS485 GSM GPRS network EDGE LTE 4G LTE LTE Cat.4 UMTS HSDPA WCDMA
Application	industrial for M2M application for PLC communications for IoT applications for level measurement RoHS
Mounting	DIN rail
Other characteristics	long-range high-speed