Serial Adapters
USR-DR404
RS485 to wifi /Ethernet Converter
USR-DR404 is a device that can realize data communication between RS485 and Ethernet/ wifi. Through this device, the communication between the on-site serial device and the remote SCADA system can be realized. It integrates a wealth of network protocols like MQTT, , UDP etc. and supports a variety of networking methods, suitable for various scenarios.
Ordering Guide
For serial to wifi /Ethernet convertor, offers 3 models to meet the needs of customers in different scenarios, and the main differences are shown in the table on the left.
Multiple Networking Options
The USR-DR404 provides a wealth of networking methods to meet customer networking needs.
AP mode: Allow network devices to access USR-DR404 via wifi or Ethernet.
mode: USR-DR404 as a network device accesses other networks via Wi-Fi.
AP+ mode: Work in AP and mode simultaneously.
Bridge mode: The device connected to the Ethernet port of DR404 is equivalent to directly connecting to the upper-level network, and the DR404 is equivalent to being transparent.
Router mode: The device connected to the Ethernet port of DR404 will be assigned an IP by the DR404.
Data Transmission Encryption
Supports SSLTLS encryption in cient, HTTP client and MQTT operation modes.
Supports two-way certificates authentication.
Transparent Transmission Mode
Data is transmitted transparently between RS485 and wifi / Ethernet via TCP/UDP/HTTP Protocol, enabling data transfer between serial port device and network device.
Serial Command Mode
In this mode, USR-DR404 needs work as UDP Client or Client, it allows users to send serial data to different servers. Data, server IP and port information should be included in the data packet sent by the serial device.
Addtional Features
Modbus Gateway: Modbus RTU/TCP protocol conversion and multi-host Modbus polling.
Heartbeat Packet Function: Remote server can detect abnormal disconnection from the client using this feature.
Registration Packet Funciton: The server can identify different clients by usingregistration packets.
Websocket Function: It can realize the real-time interaction between the serial device connected to DR404 and the web page on PC.
: Cloud SCDA Solution
provides a cloud-based SCADA system that allows users to upload data from field devices to the SCADA system for remote monitoring and data management to realize the potential of the equipment.
Industrial-Grade Design, High Reliability
EFT Protection: Level 3, protect device against damage caused by instantaneous current interference in circuit, such as stroke, power switch, etc.
ESD Protection: Level 4, prevent electrostatic damage equipment, such as dust electrostatic, electric arc environment etc.
Surge Protection: Level 3.
Watchdog: Hardware & software dual watchdog to ensure stable operation without downtime
Wide Operation Temperature -40~ 85
Product Details
Dimension: 28.0*110.0*64.7 mm.
Serial port: 1*RS485. Baud rate range: 300-230.4Kbps.
Ethernet port: 10/100M MDI/MDIX, auto switch between cross and direct connection, 1.5KV electromagnetic isolation.
Power Supply: 5~36V input, terminal block.
Installation: DIN-Rail mounting.
Reload button: In the case of forgetting the parameters, long press to restore the settings.
Antenna Connector: 1*SMA-Female.
Shell: PC+ABS material, V0 antiflaming
Smart Agriculture
The USR-DR404 combined with soil sensors can quickly and effectively acquire multiple sets of important data such as farmland soil temperature, humidity, pH, etc., which is convenient for users to adjust the management method in time, improve management efficiency, and create modern smart agriculture.
Medical Device Data Transmission Solution
The transmits the entered data to the cloud server in real time through Wi-Fi network of DR404. Users can quickly complete the collection, storage and analysis of important data.
Ethernet
Port Number
1 Ethernet Ports: 1 x WAN/LAN
Buffer
RX/TX: Max 4K bytes
Protection
2KV Electromagnetic isolation for Ethernet port
Speed Rate
10/100Mbps, MDI/MDIX
Wi-Fi
Certificate
FCC/CE
WiFi
802.11 b/g/n
FrequencyRange
2.412GHz-2.484GHz
TransmitPower
802.11b:+19dBm(Max. 11Mbps)
802.11g:+18dBm(Max. 54Mbps)
802.11n:+17dBm(Max. HT20,MCS7)
+17dBm(Max. HT40,MCS7)
User can configure power
ReceiveSensitivity
802.11b:-89dBm( 11Mbps)
802.11g:-81dBm( 54Mbps)
802.11n:-73dBm( HT20,MCS7)
-71dBm( HT40,MCS7)
Hardware
InterfaceStandard
RS485:300-230.4Kbps
485interface (anti surge, anti thunder, overcurrent protection)
InputVoltage
DC5-36V
OperatingTemp
-40-85
StorageTemp
-40-125
Size
109.66*28*64.71mm(L*W*H)
Software
NetworkMode
Station/AP/AP+Station
Security
WPA-PSK/WPA2-PSK
Encryption
TKIP/AES
WorkMode
Transparenttransmission/Serial command/
https Client/Modbus Modbus RTU
SettingCommand
AT+command
NetworkingProtocol
TCP/UDP/ARP/ICMP/DHCP/DNS/https
MaxClientNumberin Server Mode
24
Configuration
Webserver+ATcommand
Customerapplication software
Supportcustomize application software
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High-concerned chemical : none
Size : 1
Model Number : USR-DR404
Certification :
Item Type : Communication Converter