The Moxa OnCell G4302‑LTE4 Series is an industrial 4G LTE cellular router that connects Ethernet or serial devices for remote and mobile deployments. It supports dual-SIM redundancy, secure VPN, NAT, firewall, and Deep Packet Inspection (DPI) for OT/IIoT security. Rugged and wide-temperature rated, it’s ideal for SCADA, remote monitoring, and industrial automation.

• Moxa OnCell routers offer strong security with Secure Boot, preventing unauthorized firmware changes.
• They support encrypted VPNs like IPsec and OpenVPN for safe remote access.
• A built-in firewall and NAT protect industrial networks from unauthorized traffic.
• DDoS protection and DPI help detect and block suspicious activity.
• They also follow industrial cybersecurity standards such as IEC 62443-4-2 for higher OT security.

Not all Moxa cellular routers are formally IEC 62443‑4-2 certified. Some OnCell models follow the standard’s design principles for industrial security. Formal SL2 certification currently applies to models like EDR‑G9010 and TN‑4900. OnCell routers still offer features like Secure Boot, VPN, and firewall for secure operation. They are reliable for industrial networks, but check the specific model for official certification.

GuaranLink in Moxa routers is a feature that continuously monitors the cellular connection. It checks link quality and responsiveness to detect failures or degraded performance. If issues occur, it can automatically recover the connection by resetting the module. In dual-SIM models, GuaranLink can switch to a backup SIM for uninterrupted service. This ensures reliable and continuous connectivity for industrial and mission-critical networks.

Yes, many Moxa cellular routers support dual‑SIM. For example, the OnCell G4302-LTE4 series offers “2 Push‑eject tray” SIM slots. This dual‑SIM capability is often paired with their proprietary GuaranLink redundancy feature, which allows automatic failover between SIMs for better reliability.

Moxa cellular routers support different LTE bands depending on the region or model.

• EU models cover bands like B1, B3, B7, B8, B20, B28.
• US/Americas models support B2, B4, B5, B12, B13, B66, B71 and more.
• Global-band models combine multiple regional bands for worldwide use.

This ensures Moxa industrial routers work reliably with local carriers and in industrial deployments worldwide.

Yes, many Moxa cellular routers can provide WAN redundancy. With models like OnCell G4302‑LTE4, you get redundancy between cellular (LTE) and Ethernet WAN interfaces; if the Ethernet WAN fails, the router automatically switches to cellular. Also, with the dual‑SIM + GuaranLink technology, the router can maintain continuous cellular connectivity (failover between SIMs) for added resilience.

Moxa cellular routers come with several management and monitoring tools for industrial networks:

• MXview: Centralized network management software to monitor device status, traffic, and alarms across multiple Moxa switches and routers.
• Web-based GUI: Each router has a built-in web interface for configuration, status checks, and troubleshooting.
• SNMP & Syslog: Supports standard SNMP monitoring and syslog reporting for integration with third-party network monitoring tools.
• GuaranLink Dashboard: For routers with dual-SIM/GuaranLink, it shows cellular link status, failover events, and recovery actions.
• Command-line interface (CLI): For advanced configuration, scripting, and remote management in automated industrial deployments.

• Log in to the router’s web GUI using the default IP or assigned management IP.
• Navigate to the VPN settings section (IPSec, SSL VPN, or OpenVPN, depending on model).
• Create a VPN profile, specifying remote gateway IP, pre-shared key or certificates, and encryption/authentication settings.
• Assign the VPN profile to the relevant interface or LAN segment, and enable the connection.
• Test the VPN tunnel from a remote client or site, then save and back up the configuration for future recovery.

Yes, Moxa secure routers support all three features for industrial networks:

• Firewall: Layer‑3/Layer‑4 rules allow traffic filtering, VLAN-based segmentation, and policy enforcement to protect OT and IT segments.
• NAT (Network Address Translation): Enables private IP addressing, port forwarding, and secure routing between multiple networks or the internet.
• DPI (Deep Packet Inspection): Protocol-aware inspection for industrial protocols (Modbus, DNP3, IEC 61850, etc.), helping detect anomalies, unauthorized traffic, and security threats.

These capabilities combined provide defense-in-depth, allowing secure OT/IT network integration while maintaining performance and reliability.

• Mount the device using DIN-rail, wall, or panel options according to the environment.
• Connect power (PoE or DC input) and attach the required Ethernet/serial interfaces to your network or devices.
• Insert a SIM card for cellular connectivity and ensure antenna placement for optimal signal.
• Log in to the web GUI via the default IP, then configure WAN (cellular), LAN, firewall, and VPN settings as needed.
• Test connectivity (cellular, serial/Ethernet links, VPN if configured), then save the configuration and optionally back it up.

• Insert or replace the SIM card in the designated slot, following manufacturer instructions for correct orientation.
• Use the web GUI to view SIM status, signal strength, and registered network operator.
• Configure APN (Access Point Name), username, and password if required by the cellular provider.
• Enable automatic or manual network selection to control which carrier the router connects to.
• Monitor SIM usage, roaming status, and connection logs via the router’s diagnostic and monitoring tools for reliable cellular operation.

Yes, Moxa cellular routers (OnCell and EDR-G series) can be used in vehicle or ignition-powered systems. Here’s a 5-line summary:

• Many models support wide voltage input (e.g., 9–48 V DC) suitable for vehicle power systems.
• They can handle power cycling/ignition on/off scenarios without damaging internal components.
• Rugged design and industrial-grade temperature ranges make them reliable in mobile environments.
• Antennas and cellular radios are optimized for continuous connectivity in moving vehicles.
• Typical use-cases include fleet management, mobile SCADA, remote monitoring, and public-transport telemetry.

Yes, Moxa OnCell routers support remote access for configuration, monitoring, and troubleshooting. Here’s a 5-line summary:

• Web GUI access allows administrators to manage the router from any network with proper routing or VPN.
• VPN support (IPSec, SSL, OpenVPN) secures remote connections to the OnCell router and connected devices.
• Remote diagnostics and monitoring are available via SNMP, Syslog, or Moxa management software (MXview / MXsecurity).
• Some models support dynamic DNS for consistent remote connectivity even with changing cellular IPs.

These features enable OT/SCADA engineers to securely monitor and configure devices without physically accessing the router in the field.

• Most models use SMA or RP-SMA connectors for cellular 4G/5G LTE antennas.
• Some devices include SMA/RP-SMA for GNSS/GPS antennas for location tracking or time sync.
• For Wi-Fi-enabled models, separate RP-SMA connectors may be provided for 2.4 GHz / 5 GHz wireless networks.
• Certain rugged models support IP67-rated or threaded SMA adapters for vibration- or weather-resistant mounting.
• Antenna placement and cabling recommendations are important to maximize signal strength and maintain reliable cellular connectivity.

• Download the latest firmware for your specific OnCell model from the Moxa website.
• Log in to the router’s web GUI using its IP address and administrator credentials.
• Navigate to System → Firmware Upgrade, then upload the downloaded firmware file.
• Start the upgrade process and wait for the router to automatically reboot when complete.
• Verify the firmware version after reboot, and back up the configuration if needed for recovery.

• Check physical connections: verify power, SIM card, Ethernet cables, and antenna placement.
• Verify cellular signal and registration in the web GUI; confirm APN, username, and password are correct.
• Ping gateway, remote devices, or public IPs to isolate network vs. cellular issues.
• Review logs and diagnostics (Syslog, connection history, VPN status) for errors or blocked traffic.
• Restart the router if needed, and ensure firmware is up-to-date to fix known connectivity bugs.

Yes, many Moxa OnCell routers support GNSS/GPS functionality. Here’s a 5-line summary:

• Selected OnCell models include built-in GNSS/GPS receivers for location tracking.
• External SMA/RP-SMA GNSS antennas are typically required for accurate satellite reception.
• Supports time synchronization for SCADA/industrial networks using GPS timestamps.
• Useful for fleet management, mobile monitoring, and telemetry applications.
• GPS status, coordinates, and signal strength can be monitored via the web GUI or SNMP.

It depends on the model; different Moxa OnCell routers have different numbers of Ethernet ports. Here are a couple of examples:

• OnCell G4302 has 2 × 10/100/1000Base‑T (RJ45) Ethernet ports. 
• OnCell G4308 offers 8 × 10/100/1000Base‑T (RJ45) Ethernet ports. 

So, depending on your deployment, small site vs larger network, you can choose a model with the appropriate number of ports.

Yes, many Moxa cellular (OnCell) routers support serial interfaces (RS‑232 / RS‑422 / RS‑485), in addition to Ethernet. 

For example:

The Moxa OnCell G4302‑LTE4 includes one serial port (DB9) that supports RS‑232, RS‑422, and RS‑485 standards — with baud rates from 300 bps up to 921.6 kbps. Those serial ports can operate in different modes: real COM port, RFC‑2217 (serial‑over‑TCP), TCP/UDP client or server — so you can connect legacy serial devices over the cellular router to a remote Ethernet or IP‑network. 

In short: if you need to connect legacy serial devices (PLCs, sensors, meters, etc.) over cellular or remote networks, Moxa OnCell routers often provide the needed serial interface — check the datasheet of the model for exact serial‑port support.

• EMC/EMI/EMS: EN 55032/35, EN 61000‑6‑2/6‑4, IEC 61000‑4‑2/3/4/5/6/8, FCC Part 15B.
• Hazardous locations: ATEX, IECEx, Class I Division 2 for explosive or regulated industrial zones.
• Industry/transport: EN 50121‑4 (rail), NEMA TS2 (traffic), E‑Mark E1 (vehicles).
• Cellular / radio: EN 301 489‑1/19/52, EN 301 511, EN 301 908, FCC/IC/RCM/UKCA approvals.
• Cybersecurity: Designed per IEC 62443‑4‑2 for secure OT/industrial network deployment.

Yes, many Moxa OnCell routers can auto‑recover the cellular link after a drop, with a built‑in feature called GuaranLink. When GuaranLink is enabled, the router continuously monitors the cellular connection (via pings or DNS lookups) to detect failures or inactivity. If a link failure is detected, GuaranLink tries to restore connectivity by resetting the cellular module, without rebooting the entire device. On dual‑SIM models, if the primary SIM fails, the router will automatically switch to the backup SIM and re‑establish the link. Some OnCell models additionally support WAN redundancy, switching between cellular and Ethernet (or other WANs) to maximize uptime in case one link fails.

• Locate the reset button on the device (usually a small recessed button near the power or LAN ports).
• Press and hold the reset button for about 5–10 seconds using a pin or paperclip.
• Release the button when the LEDs flash (varies by model, consult the manual for exact timing).
• The router will reboot automatically, restoring all factory-default settings (IP, username/password, network configs).
• After reboot, log in using the default credentials and reconfigure your WAN, LAN, cellular, or VPN settings as needed.