I: Product Overview:
The H728 series router is developed by the company based on wireless network requirements, adopting an industrial-grade 4G communication module to provide users with convenient and high-speed network transmission functions through mobile broadband networks. This series of products uses a high-performance 32-bit high-speed processor and an embedded real-time operating system as the software system to provide users with a secure, high-speed, stable and reliable communication network. It is a 4G industrial wireless router with 2 100M Ethernet ports and 485/232 interfaces.

Supports private network and public-private integrated network, providing 4G high-speed network services
Dual 100M Ethernet ports, 485/232 optional
Supports 4G and wired broadband dual-channel intelligent redundancy backup, load balancing, etc. to ensure secure and reliable communication
Can be customized with more intelligent access methods and more access strategies according to customer needs
Supports multiple VPN protocols such as IPSEC, L2TP, PPTP, openVPN, GRE
Optional customized network routing protocols such as VLAN, RIP, OSPF, BGP
Supports mainstream Internet of Things (IOT) platforms such as standard Modbus and MQTT
Supports practical functions such as VRRP, traffic statistics, black and white lists, data flow filtering, DTU
Supports customization of original configuration parameters, including device name and model, which will not be lost after restoring factory settings
Industrial-grade high-specification hardware and software solution, independent and powerful MCU processor, hardware and software double watchdog to ensure never downtime
Meets 5~28VDC wide voltage, -40~+80°C cold and high temperature resistance, anti-interference, 24-hour all-weather operation

II: Hardware Interface Description:
Shell Size (mm):
PCB Size: 57.58013.5, Shell Size: 837023.5mm
Chip: MT7628+512Mb Memory+128Mb Flash Memory
Supported Frequency Bands: Private network 600M/1.4G/1.8G and public-private integration
2.4G Baseband (WIFI): Standard: IEEE802.11bgn 300Mbps (2T2R), Transmit Power: 11nHT40MCS715dBm/11bCCK18dBm/11G0FDM15dBm, Receive Sensitivity: -65dBm at 300Mbps/-73dBm at 54Mbps/-86dBmat 11Mbps
LAN0 Port: RJ45 LAN or WAN Interface (10/100Mbps Adaptive), WAN Port in Gateway Mode
LAN1 Port: RJ45 LAN Interface (10/100Mbps Adaptive)
Serial Port: 4PIN 2.0MM Pin Header Interface (TX/RX), Supporting RS232 and RS485 Optional
Watchdog: Software Watchdog + Hardware Watchdog
Antenna Interface: 4G Omnidirectional SMA Antenna Interface2, 4G Omnidirectional SMA Antenna Interface2WIFI Omnidirectional SMA Antenna Interface*, 4G Omnidirectional SMA Antenna Interface2GPS SMA Antenna Interface1 (Optional)
SIM Card Slot: Tray-type SIM Slot*1
Button: Reset Button
Indicator Lights (4): 4G Light (Blue): Always on when just powered on, slow flashing after startup but not connected, fast flashing when dialing, always on after successful network connection
Signal Light (Red): On when 4G signal is weak
Signal Light (Green): On when 4G signal is strong
Not connected to device: Off LAN0 Port Status: On when connected to device, flashing when transmitting data, LAN1 Port Status: On when connected to device, flashing when transmitting data, Off when not connected to device
Power Port: DC Interface or two wires (GND/DC+) in 4PIN 2.0MM pin header interface, supporting 7~35V/2A, it is recommended to use 12V2A power supply
Power Consumption (At Full Load): Less than 3W, the instantaneous peak may be higher than 3W based on different wireless environments and network loads, it is recommended to provide 5W power
Temperature Range: Operating Temperature: -40℃~+70℃, Storage Temperature: -40℃~+85℃
III: Software Function Introduction:
Powerful Hardware Functions:
Adopt high-performance industrial-grade wireless communication module;
Adopt high-performance 32-bit processor;
Adopt hardware and software watchdog and multi-level link detection mechanism, with automatic fault detection and automatic recovery capabilities to ensure stable and reliable operation of the device
Support low power consumption modes, including sleep mode, timed online/offline, remote wake-up mode; Multiple device self-inspection mechanisms to ensure smooth links and alarm backup interface ESD protection to prevent electrostatic shock, 6KV lightning protection design (optional)
Multiple Ways to Access the Internet:
3G/4G and Ethernet wired Internet work simultaneously, cold backup, hot backup and load balancing bandwidth叠加;
Dual WAN, dual broadband wired work simultaneously, cold backup, hot backup and load balancing bandwidth叠加;
Customize more intelligent access methods, and can customize more access strategies according to customer needs.
Support Multiple Local and Remote Management Protocols:
Local TCP Protocol Control: Local HTTP Protocol Status Query, Local Network Broadcast Search Device Remote HTTP Protocol
Status Report (Device Information/Terminal Information/GPS Information);
Remote HTTP Protocol Status Report (Device Information/Terminal Information/GPS Information);
Remote HTTP Protocol Control: MQTT Status Report Alarm and MQTT Device Management functions, Local Management Toolkit and Programming API, providing Management Toolkit under Linux Environment to realize local device management and quickly help customers realize device management
Multifunctional Serial Port Transparent Transmission
/MaTT/Modbus：
Serial port transparent transmission supports custom registration packet/activation packet/keep-alive packet, custom packet prefix and suffix, server and client work simultaneously and multiple servers, traffic statistics,
Modbus/MQTT protocol, which can connect PLC devices and real-time IoT devices to the network Serial port GPS data reporting, the serial port supports external GPS, which can parse its data and report
Support serial port command mode, can manage and control the device through serial port commands
Two serial ports work simultaneously, optional RS232+RS485, RS485+RS232G two combinations;
Customize various serial port protocols, open SDK programming environment, provide examples and standard interfaces for customers to customize more serial port protocols
Rich Applications:
Support VPNclient (PPTP, L2TP,, GRE, OpenVPN), support VPNserver (PPTP, L2TP,
OpenVPN);
Support local and remote online upgrade, import and export configuration files; Support NTP;
Support multiple domestic and foreign DDNS;
Support MAC address cloning, PPPoE server;
Support APN/VPDN;
Support multi-channel DHCPserver and DHCPclient, DHCP捆绑MAC address, DDNS, firewall, NAT/NAPT
Port mapping and conversion, DMZ host, QoS, traffic statistics, real-time display of data transmission rate and other functions;
Support SPI firewall, VPN traversal, access control, URL filtering, and other functions;
Static routing and dynamic routing;
IV: Physical Interface Introduction:
1)4G-1/4G-2--------Connect 46 Antenna
2)WIFI-1/WIFI/2-----Connect WIF Antenna
3)RESET-Reset Button
4)SIM -SIM Card Slot
5)DC+Device Power Supply DC7V~35V Wide Voltage
6)TXRS232's TX or RS485's A
6)RXRS232's RX or RS485's B
V: H728 Wireless Gateway Application:
Widely used in M2M industries in the IoT industry chain, such as smart grid, intelligent transportation, smart home, finance, mobile POS terminals, supply chain automation, industrial automation, smart buildings, fire protection, public safety, environmental protection, meteorology, digital medical care, remote sensing and surveying, military, space exploration, agriculture and forestry, water affairs, coal mines, petrochemicals and other fields.