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W4G 4G LTE & Ethernet Dual Network Parking Controller with Auto Failover

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W4G 4G LTE & Ethernet Dual Network Parking Controller with Auto Failover

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Brand Name :	JUTAI
Model Number :	W4G
Price :	Negotiation
Payment Terms :	L/C,D/A,D/P,T/T,Western Union
Supply Ability :	1000/m
Delivery Time :	7 working days

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W4G 4G LTE & Ethernet Dual Network Parking Controller with Auto Failover

W4G Dual Network Parking Controller front view

W4G Dual Network Parking Controller technical diagram

The JUTAI W4G Series Controller is an industrial-grade intelligent core device tailored for smart parking and access control systems. It solves traditional systems relying on physical lines by integrating 4G LTE and Ethernet dual-network redundancy, realizing automatic failover and seamless connectivity. Equipped with a high-speed ARM Cortex-M3 processor, rich interfaces, and offline operation capabilities, it serves as a reliable "central hub" for communication between cloud platforms, on-site devices (cameras, barriers, detectors), and peripheral equipment—ensuring 24/7 stable operation of parking lots, gated communities, and industrial access scenarios.

Core Technical Parameters

Category	Key Parameters	Specification
Power & Environmental	Operating Voltage	DC12V (with reverse connection protection)
	Operating Current	2A MAX (instantaneous current during 4G data transmission)
	Operating Temperature	-40°C ~ +85°C (relative humidity <80%, no frost)
	Dimensions (L × W × H)	145mm × 105mm × 15mm
	Mounting Hole Spacing	135mm × 95mm
Dual-Network Communication	Primary Network	4G LTE (built-in module, supports MicroSIM card, 1.8/3.3V voltage adaptive)
	Backup/Preferred Network	Ethernet (10/100M adaptive, isolated, does not support automatic polarity reversal)
	Data Rate	Ethernet: Max 300KByte/S; 4G: Max 100KByte/S (depending on network conditions)
	Network Logic	Auto-switch & fallback: Priority use of Ethernet, automatic switch to 4G on failure, revert after recovery
	Supported Protocols	MQTT (cloud docking), TCP/IP, ETC reader protocol, printer control protocol
Control & Interfaces	Relay Output	2 channels (isolated normally open contact), load capacity: 250VAC 10A / 30VDC 10A
	IO Input	6 channels (non-isolated, allowable voltage range 0-5V)
	Serial Interfaces	2x RS232, 2x RS485 (baud rate 4800-115200bps, with ESD and pulse protection)
	Access Control Interface	2x Wiegand interfaces (Wiegand 26/34 adaptive)
Integration & Storage	Compatible Cameras	Ethernet: Zhixin, Zhenshi (photo push); RS485: Zhixin, Zhenshi, Qianyi (license plate data)
	Onboard Features	RTC (real-time clock with power failure backup), large-capacity offline data storage, LCD driver
	Development Modes	Cloud docking (recommended, MQTT + SDK); Local use (PC software control)
Remote Management	Upgrade Support	Firmware and file updates via network

Key Functional Advantages

1. Dual-Network Redundancy & Auto Failover

No network downtime: Automatically switches between Ethernet and 4G networks. If physical lines are damaged or Ethernet fails, it instantly switches to 4G to ensure continuous system operation.
Cost optimization: Reverts to Ethernet when the network is restored, minimizing 4G data consumption and reducing operational costs.
Stable signal guarantee: 4G module supports mobile phone network coverage, ensuring normal operation as long as the mobile signal is available.

2. Comprehensive Device Integration Hub

Camera integration: Directly connects to mainstream LPR cameras via Ethernet (receives photo pushes) or RS485 (obtains license plate data), eliminating the need for additional converters.
Peripheral control: Controls barriers, lights, and printers via relays; reads vehicle presence from loop detectors via IO inputs; connects card readers via Wiegand interfaces.
Extended compatibility: Supports ETC reader parsing protocols and LCD display control, adapting to diverse parking lot functional requirements.

3. Offline Operation & Data Integrity

Independent work capability: Built-in RTC and large-capacity memory, enabling normal operation with pre-stored whitelists and configurations even without network connectivity.
Offline data storage: Saves license plate recognition records, access logs, and images locally, with up to 64 small-size image storage capacity.
Automatic sync: Uploads all offline data and images to the cloud immediately after network recovery, ensuring complete audit trails and no data loss.

4. Standardized Cloud Integration (MQTT)

Simple docking: Uses JSON-over-MQTT protocol for communication, supporting custom or third-party platform integration with provided SDK.
Full-event coverage: Reports device heartbeat, license plate recognition, QR code scans, and IO status changes; supports remote commands for barrier control, display messaging, and whitelist updates.
Secure and reliable: QoS 1 communication quality ensures message delivery, with GBK encoding for stable data transmission.

5. Industrial-Grade Reliability & Easy Maintenance

Harsh environment adaptation: Operates stably in -40°C ~ +85°C extreme temperatures, with ESD and pulse protection for interfaces.
Low maintenance cost: Remote monitoring of device status (signal strength, temperature, data usage) and firmware updates reduce on-site visits.
Robust hardware design: Reverse connection protection, overcurrent protection, and durable components ensure 24/7 continuous operation.

Application Scenarios

Smart Parking Lots & Garages: Serves as the core controller for entry/exit stations, integrating LPR cameras, barrier control, and payment system linkage. Offline operation guarantees uninterrupted service during network outages.
Gated Communities & Residential Complexes: Manages resident whitelists, visitor temporary access, and delivery vehicle entry/exit. Dual-network redundancy ensures no access control failures.
Commercial & Retail Parking: Facilitates paid parking, monthly pass management, and integration with QR code payment stations. Reliable operation enhances customer experience during peak hours.
Industrial & Logistics Parks: Controls truck and authorized personnel access, logs entry/exit times, and integrates with warehouse management systems. Resists harsh industrial environments.
Toll Stations & Highway Access: Supports ETC protocol integration, with dual-network guarantee for critical communication in toll collection scenarios.

Why Choose W4G Dual Network Parking Controller?

Eliminates Single Point of Failure: Auto failover between Ethernet and 4G ensures 100% system uptime, protecting revenue and security.
Simplifies System Architecture: Integrates multiple communication interfaces and control logic, replacing separate network switches, 4G routers, and PC-based software.
Future-Proof & Scalable: Open MQTT protocol and standard interfaces support integration into IoT platforms, scaling across multiple sites.
Cost-Effective Operation: Offline data storage reduces real-time network dependency; automatic network switching optimizes data costs.
Proven Compatibility: Works with mainstream LPR cameras, ETC readers, and peripherals, reducing integration risks for system integrators.

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