Moxa

OnCell G4308-LTE4 Series

8-port industrial LTE Cat. 4 secure cellular routers

OnCell G4308-LTE4 Series

Features and Benefits

  • 8-port high-density design for future expansion flexibility
  • Cellular router/switch/firewall all-in-one solution
  • Dual SIM failover and auto connection recovery for reliable cellular connectivity
  • Industrial network protection with firewall and Deep Packet Inspection (DPI)
  • Supports Secure Boot for checking system integrity
  • Centralized monitoring and remote access with Moxa Remote Connect (MRC)

Certifications

  • CE
  • FCC
  • UL Listed

Introduction

The OnCell G4308-LTE4 Series is a range of all-in-one industrial cellular routers that integrate an 8-port high-performance switch, firewall, and LTE Cat.4 connectivity, making them ideal for connecting multiple devices at remote sites. By avoiding the need for multiple standalone devices, these cellular routers save cabinet space, reduce wiring and configuration complexity, and lower maintenance costs to simplify deployment and maintenance efforts. Designed to act as a wireless backbone for critical industrial applications, they deliver stable Serial/Ethernet-to-cellular connections and ensure optimal reliability with dual SIM failover and GuaranLink cellular auto-recovery. The OnCell G4308-LTE4 Series protects organizations against threats on multiple fronts. Built from the ground up with security in mind, Secure Boot ensures firmware integrity while the advanced firewall with OT protocol awareness safeguards the network from internal and external threats. Meanwhile, Deep Packet Inspection (DPI) detects and blocks forged or malicious packets. Combined, these features deliver comprehensive, multi-level security for critical operations. With MRC Quick Link Ultra, operators gain complete visibility and secure remote control over both the OnCell router and its connected end devices, allowing for faster troubleshooting, minimal downtime, and more reliable industrial operations.

Models in this series (2)

OnCell G4308-LTE4-GLOnCell G4308-LTE4-GL-T
LTE BandB1 (2100 MHz) / B2 (1900 MHz) / B3 (1800 MHz) / B4 (1700/2100 MHz (AWS)) / B5 (850 MHz) / B7 (2600 MHz) / B8 (900 MHz) / B12 (700 MHz) / B13 (700 MHz) / B14 (700 MHz) / B20 (800 MHz) / B25 (1900 MHz) / B26 (850 MHz) / B28 (700 MHz)B1 (2100 MHz) / B2 (1900 MHz) / B3 (1800 MHz) / B4 (1700/2100 MHz (AWS)) / B5 (850 MHz) / B7 (2600 MHz) / B8 (900 MHz) / B12 (700 MHz) / B13 (700 MHz) / B14 (700 MHz) / B20 (800 MHz) / B25 (1900 MHz) / B26 (850 MHz) / B28 (700 MHz)
Operating Temp.-10 to 55°C-30 to 70°C
Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)

Specifications

Shown for OnCell G4308-LTE4-GL. Per-model differences are listed in the selection grid above.

Cellular Interface

Cellular Standards
LTE CAT 4, HSPA, UMTS
Data Rate
20 MHz bandwidth: 150 Mbps DL, 50 Mbps UL
Frequency Bands Supported
LTE B1 (2100 MHz) / B2 (1900 MHz) / B3 (1800 MHz) / B4 (1700/2100 MHz (AWS)) / B5 (850 MHz) / B7 (2600 MHz) / B8 (900 MHz) / B12 (700 MHz) / B13 (700 MHz) / B14 (700 MHz) / B20 (800 MHz) / B25 (1900 MHz) / B26 (850 MHz) / B28 (700 MHz) UMTS/HSPA B1 (2100 MHz) / B2 (1900 MHz) / B4 (1700 MHz(AWS)) / B5 (850 MHz) / B6 (800MHz) / B8 (900 MHz) / B19 (800 MHz)
No. of SIMs
2 Push-eject tray type
SIM Format
Nano SIM
Cellular Antenna Connectors
2 x SMA female

Ethernet Interface

10/100/1000BaseT(X) Ports (RJ45 connector)
8
Standards
IEEE 802.3 for 10BaseT IEEE 802.3u for 100BaseT(X) IEEE 802.3ab for 1000BaseT(X)

GNSS Interface

GNSS Bands
GPS (1575.42 MHz) GLONASS (1597.52 MHz) Galileo (1575.42 MHz) BeiDou (1561.098 MHz)
GNSS Antenna Connectors
1 x SMA female

Input/Output Interface

Digital Output Channels
1 Relay output with current carrying capacity of 1 A @ 24 VDC
Digital Input Channels
1
Digital Inputs
0 to +3 V for state 0 +9 to +36 V for state 1
Buttons
Reset button

USB Interface

No. of USB Ports
1
USB Connector
USB Type A
USB Standards
USB 2.0 For use with the ABC-02 Series configuration backup and restoration tool.

Serial Interface

No. of Ports
1
Connector
DB9 male
Serial Standards
RS-232/422/485
Data Bits
5, 6, 7, 8
Stop Bits
1, 1.5, 2
Parity
None Even Odd
Baudrate
300 bps to 921.6 kbps
Console Port
RS-232 (TxD, RxD, GND), USB type-C (115200, n, 8, 1) We recommend using the Moxa CBL-USBCF9-GY-150 console cable, which can be purchased separately.

Serial Signals

RS-232
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422
Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
Data+, Data-, GND
RS-485-4w
Tx+, Tx-, Rx+, Rx-, GND

Operation Modes

Standards
Real COM mode RFC2217 mode TCP Client mode TCP Server mode UDP mode SCATS

LED Interface

LED Indicators
PWR1, PWR2, STATE, USB, SIM1, SIM2, CELL, LTE, GNSS, SERIAL, VPN

Wireless Software Features

Management
GuaranLink Send SMS SMS Remote Control Moxa Remote Connect (MRC)

Ethernet Software Features

Management
DHCP Server/Client DNS Syslog MXview One MXconfig MXsecurity Power Management
Broadcast Forwarding
IP directed broadcast, broadcast forwarding
Configuration Options
Serial Console We recommend using the Moxa CBL-USBCF9-GY-150 console cable, which can be purchased separately. Web Console (HTTP/HTTPS) Command Line Interface (CLI) through Serial/Telnet/SSH
Network Protocols
LLDP SMTP SNMPv1/v2c/v3 TFTP TCP/IP UDP IPv4 ARP HTTP/HTTPS Telnet SSH
Filter
802.1Q VLAN Port-based VLAN
Unicast Routing
OSPF RIPV1/V2 Static Route
Multicast Routing
Static Route
Routing Redundancy
VRRP
Time Management
NTP Server/Client SNTP
Tunneling
GRE
VPN
IPsec OpenVPN

Security Functions

Hardware-based Security
Secure Boot
Password
User-level password protection
Authentication
Local database RADIUS Access Control List

DoS and DDoS Protection

Technology
ARP-Flood FIN Scan ICMP Flood TCP Sessions Without SYN NMAP-ID Scan NMAP-Xmas Scan Null Scan SYN/FIN Scan SYN/RST Scan SYN-Flood Xmas Scan

Firewall

Filter
DDoS Ethernet protocols ICMP IP address MAC address Ports
Deep Packet Inspection
Modbus TCP Modbus UDP DNP3 IEC 60870-5-104 IEC 61850 MMS EtherNet/IP MELSEC Omron FINS OPC UA Siemens S7 Comm. Siemens S7 Comm. Plus Additional protocols will be supported through future firmware updates.

NAT

Features
1-to-1 N-to-1 PAT NAT loopback Double NAT

IPsec VPN

Authentication
MD5 and SHA (SHA-256) RSA (key size: 1024-bit, 2048-bit) Pre-shared Key or X.509 v3 certificate
Encryption
DES 3DES AES-128 AES-192 AES-256 AES-256 GCM
Concurrent VPN Tunnels
Max. 15 IPsec VPN tunnels

OpenVPN

OpenVPN
OpenVPN (client)
Encryption
AES-128/192/256 CBC AES-128/192/256 GCM CHACHA20-POLY1305

Power Parameters

Input Current
1.16 A (max.)
Input Voltage
12 to 48 VDC Redundant dual inputs
Power Consumption
47 mW at 12 V (idle) 11.05 W at 12 V (typ.) 14.28 W at 48 V (max.)
Power Connector
Screw-locked terminal block
Reverse Polarity Protection
Supported

Physical Characteristics

Housing
Metal
Dimensions
125 x 58.2 x 100 mm (4.92 x 2.29 x 3.94 in)
Weight
707 g (1.56 lb)
Installation
DIN-rail mounting Wall mounting (with optional kit)
IP Rating
IP40 With the rubber SIM slot cover closed.

Environmental Limits

Operating Temperature
Standard models: -10 to 55°C (14 to 131°F) Wide temp. models: -30 to 70°C (-22 to 158°F)
Storage Temperature (package included)
-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity
5 to 95% (non-condensing)

Standards and Certifications

EMC
EN 55032/35 EN 61000-6-2/-6-4 CISPR 32/35
EMI
ICES-003, FCC Part 15B Class A
EMS
IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV (level 4) This device demonstrates a capacity that exceeds the requirements set by certification standards. IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m (level 3); 1.8, 2.6, 3.5, 5GHz: 3V/m (level 2) IEC 61000-4-4 EFT: Power: 2 kV; IO: 1 kV (level 3) This device demonstrates a capacity that exceeds the requirements set by certification standards. IEC 61000-4-5 Surge: Power: Power: 2 kV, Signal: 2 kV (level 3) This device demonstrates a capacity that exceeds the requirements set by certification standards. IEC 61000-4-6 CS: 0.15 MHz to 80 MHz; Signal: 10 V (level 3) IEC 61000-4-8: 30 A/m (level 4)
Freefall
IEC 60068-2-32
Radio Frequency
FCC ID RI7LE910CXWWX PTCRB EN 303 413
Radio
RCM UKCA IC: 5131A-LE910CXWWX NCC: CCAK264G0020T7 TELEC: R 003-240163/T D240129003
Cellular Standards
EN 301 489-1/-19 (GPS) EN 301 489-1/-52 (WCDMA/LTE) EN 301 511 EN 301908-1/-2/-13
Cybersecurity
EN 18031-1
Safety
UL 62368-1 EN 62368-1
Shock
IEC 60068-2-27
Vibration
IEC 60068-2-6

MTBF

Time
1,533,742 hrs
Standards
Telcordia Standard SR-332

Warranty

Warranty Period
5 years
Details
See www.moxa.com/warranty

Resources

NameTypeVersionDate
Moxa Remote Connect Suite Software (MRC Client SW)31.5 MBSoftware Packagev4.2.0Jul 30, 2026 Jul 30, 2026 Release notes
Firmware for OnCell G4308-LTE4 Series91.8 MBFirmwarev3.26.0Jul 24, 2026 Jul 24, 2026 Release notes
MIB file for OnCell G4300-LTE4 Series207.1 KBSoftware Packagev3.26.0Jul 23, 2026 Jul 23, 2026 Release notes
Software Package for MXview One Series (Linux version)552.6 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Software Package for MXview One Series (Windows version)249.1 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
MIB file for OnCell G4300-LTE4 Series205.5 KBSoftware Packagev3.23.0Jan 09, 2026 Jan 09, 2026 Release notes
Firmware for OnCell G4308-LTE4 Series98.1 MBFirmwarev3.23.0Jan 09, 2026 Jan 09, 2026 Release notes
Moxa Remote Connect Suite Software (MRC Client SW)31.5 MBSoftware Packagev4.1.0Aug 01, 2025 Aug 01, 2025 Release notes
CLI Manual for MX-ROS V36.9 MBManualv1.12Aug 31, 2026
Manual for Moxa Remote Connect (MRC)7.1 MBManualv1.3Jul 29, 2026
FOSS Statement for OnCell G4300-LTE4 Series1.5 MBDeclarationv3.26Jul 29, 2026
Manual for MX-ROS V333.0 MBManualv1.16Jul 16, 2026
QIG for OnCell G4308-LTE4 Series2.4 MBQIGv1.2Jun 12, 2026
Datasheet for OnCell G4308-LTE4 Series1.2 MBDatasheetv1.2Jan 22, 2026
QIG for OnCell G4308-LTE4 Series2.4 MBQIGv1.1Jan 19, 2026
Tech Note: The Security Hardening Guide for OnCell Series725.8 KBTech Notev1.0Aug 29, 2025
Declaration of Conformity (cybersecurity) for OnCell G4308-LTE4 Series204.0 KBDeclarationv1.0Aug 07, 2025
Declaration of Conformity (EU/UK) for OnCell G4308-LTE4 Series314.8 KBDeclarationv1.0Nov 06, 2024

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