USR-DR404 user manual www.usriot.com
Jinan USR IOT Technology Limited www.usriot.com
Contents
USR-DR404 User Manual
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1
1. Product Overview
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6
1.1. Brief Introduction
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1.2. Specifications
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2. Networking application
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7
2.1. Wireless Networking Configuration
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2.2. Wireless networking application
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2.2.1. Wireless networking application(AP)
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2.2.2. STA Mode
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2.2.3. AP+STA
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2.2.4. Wireless Networking Applications (AP,STA)
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2.3. Wired Networking
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2.4. Wired Networking Application
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2.4.1. Wired Networking Application（AP + LAN）
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2.4.2. Wired Networking Applications (AP+ WAN)
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2.4.3. Wired Networking Applications (Router)
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2.4.4. Wired Networking Applications (Bridge)
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3. Product function
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3.1. Work mode
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3.1.1. Transparent mode
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3.1.2. Serial command mode
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3.1.3. HTTPD Client Mode
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3.1.4. Modbus TCP <=> modbus RTU
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3.1.5. AT command mode
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3.2. Socket
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3.3. UART
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3.3.1. Parameters
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3.3.2. UART Free framing
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3.3.3. UART auto-framing mode
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3.4. Synchronous Band Rate (RFC2217)
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3.5. RFC2217 Protocol Description
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3.6. USR-Link
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3.7. USR Cloud
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3.8. Heartbeat Packet Function
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3.9. Socket Distribution
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3.10. Timeout Restart
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3.11. Timing Restart
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3.12. Modbus Polling
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3.13. Remote Upgrade
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3.13.1 Serial server configuration
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3.13.2 Remote upgrade system configuration
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3.14. Websocket
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