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The Hongdian H8940 is a reliable 4G LTE cellular router designed for IoT and M2M applications. With serial interfaces, Ethernet, and Wi-Fi, it ensures secure connectivity for mission-critical systems.Its compact industrial design and cloud-based management make it ideal for finance, healthcare, transport, and smart city deployments.

H8940 high-quality network services support multiple link backup types. Wired Wan or WiFi can work as the primary link, cellular LTE networks work as the backup link, and vice versa. The backup link provides for network connectivity if the primary link fails. Furthermore, it can automatically failover to a second SIM card with the dual SIM feature.

H8940 supports various VPN protocols such as IPsec, OpenVPN, GRE, PPTP, and L2TP, alongside AES encryption and authentication mechanisms. It also integrates a firewall and access control capabilities.

Benefit from H8940’s compact design, so the narrow installation space will no longer be a roadblock. Panel mounting and DIN-Rail mounting are available for various deployment scenarios.

EMC level 3, fan-less cooling, solid metal shell, strong resistance to vibration and shock, effectively reduce fault rate. The industrial LTE router offers high-quality networking solutions for unattended sites and works well even in harsh environments.

Monitor, configure, and update devices remotely via the Hongdian Sandora platform.


| Hardware | |
| CPU | MIPS 24Kc @580 MHz |
| RAM | 128MB |
| FLASH | 16MB |
| Cellular Interface | |
| Modem | 1 x LTE CAT4 |
| Number of antennas | 2 |
| Connector | SMA-K |
| SIM | 1 x Mini SIM (2FF) |
| Ethernet Interface | |
| Number of ports | 2 x 10/100 Mbps, Ethernet |
| Configuration | 2 x LAN or 1 x LAN + 1 x WAN |
| PoE output | N/A |
| Wireless interface | |
| Standards | 802.11b/g/n, AP or station mode |
| Frequency bands | 2.4 GHz |
| Speed | 150Mbps |
| Security | WEP, WPA, WPA2 |
| Encryption | 64/128 AES, TKIP |
| Antennas | 1 |
| Connector | SMA-K |
| GNSS interface | |
| Number of antennas | N/A |
| Connector | |
| Dead Reckoning | |
| Seiral interface | |
| Type | 1 x RS-232 or 1 x RS-485 serial port |
| Socket form | 1 x 6-pin 3.5 mm female socket |
| Signal definition | RX,TX,GND (RS-232) A+,B-,GND (RS-485) |
| Baudrate | RS-232 (300-115200bps) RS-485 (300-115200bps) |
| Software | |
| Auto fail-over | Between: Cellular and WAN Cellular and Wi-Fi (station mode) WAN and Wi-Fi (station mode) |
| Network protocols | PPP, PPPoE, TCP, UDP, IPv4, IPv6, SSL, DHCP, ICMP, NAT, HTTP, HTTPs, DNS, ARP, NTP, Telnet, SSH, DDNS, etc. |
| Network | APN, VPDN, VLAN, QoS |
| Routing | Static Routing, Policy routing, RIP, OSPF and BGP, etc. |
| Firewall | NAT, PAT, DMZ, Port Forword IP/Domain/MAC Filter, Access Control List |
| VPN | PPTP/L2TP/GRE/IPSec/OpenVPN/DMVPN/WireGuard |
| Ipsec Encryption | DES, 3DES, AES128, AES192, AES256 |
| OpenVPN Encryption | BF-CBC, DES-CBC, RC2-CBC, DES-EDE-CBC, DES-EDE3-CBC, DESX-CBC, RC2-40-CBC, CAST5-CBC, RC2-64-CBC, AES-128-CBC, AES-192-CBC, AES-256-CBC, SEED-CBC |
| Remote Management | HTTP, Telnet, SSH, SMS, SNMP V1/V2/V3, SNMP TRAP, Hongdian Wedora Cloud Platform, SDLAN |
| Serial ports function | Transparent, Modbus RTU, etc. |
| Power Supply and Consumption | |
| Power Connector | DC socket |
| Voltage input | +5V~+36V DC |
| Power consumption | Idle: 100mA@12V DC Data transceiving: 350mA@12V DC |
| Others | |
| Reset button | Yes |
| LED indicators | 4 x indicators for WiFi, RF, NET, SYS |
| Hardware watchdog | Yes |
| Physical Characteristics | |
| Ingress protection | IP30 |
| Housing & Weight | Metal, 300g |
| Dimension | 99.7×98.8×23.4(mm) |
| Installations | Desktop, wall mounting,din rail mounting |
| Operating temperature | -30 ~ +75℃ |
| Storage temperature | -40 ~ +85 °C |
| Relative humidity | 0~95%(no condensation) |
| EMC | |
| ESD | EN61000-4-2, level3 |
| RS | EN 61000-4-3, level3 |
| EFT | EN 61000-4-4, level3 |
| CS | EN 61000-4-6, level3 |
| Certifications (*In progress) |
CE, FCC, AT&T, Verizon, T-mobile |


| Part No. | Mobile | Band | Region |
SIM Slots |
Ethernet ports | WI-FI standard |
Wifi MIMO |
| H8940-L1NA-rW | LTE Cat1 | LTE FDD:B2/4/5/12/13/25/26 WCDMA:B2/4/5 |
North America | 1 | 2 | n | 1×1 |
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