4G/4GX LTE CAT 6 WiFi Industrial Router (CM820Q-6)

  • 4G/4GX Modem Router with 4 Ethernet Ports and WiFi
  • OpenWrt Fully Featured Linux OS
  • LTE Advanced CAT6 with 300Mbps Download Speeds
  • Automatic failover between Starlink/NBN and 4G LTE 
  • Supports Modbus TCP and Modbus RTU networks


The Comset CM820Q-6 is a 4G/4GX LTE Cat 6 Industrial WiFi Router built on the latest OpenWrt Linux operating system. It is a robust and versatile networking solution designed for industrial and remote applications. This advanced router combines high-speed 4G LTE-A connectivity, Category 6 support, SMS control capabilities, and automatic failover between Starlink/NBN and 4G LTE networks, ensuring uninterrupted connectivity in critical environments.

Key Features:

  1. 4G LTE Cat 6 Connectivity:
    • This router supports Category 6 LTE Advanced technology, providing lightning-fast download speeds of up to 300 Mbps and upload speeds of up to 50 Mbps, making it suitable for bandwidth-intensive applications and data transfer.
  2. Industrial-Grade Durability:
    • Built to withstand harsh environments, the router is designed with ruggedised components to ensure reliable performance in extreme temperatures, humidity, and vibrations.
  3. Automatic Failover:
    • The router is equipped with intelligent failover capabilities. It seamlessly switches between primary (Starlink/NBN) and secondary (4G LTE) connections in case of network disruptions or downtime, ensuring continuous operation and minimal downtime.
  4. SMS Control:
    • The SMS control feature allows remote management and monitoring of the router. You can send SMS commands to the device for functions like rebooting, changing settings, or receiving status updates.
  5. Secure Connectivity:
    • Advanced security protocols, including VPN support (IPSec, OpenVPN), firewall protection, and WPA/WPA2 encryption, ensure data privacy and network security.
  6. External Antenna Support:
    • For enhanced signal strength and coverage, the router offers external antenna connectors, allowing you to connect high-gain antennas for improved reception in remote areas.
  7. Wide Operating Voltage Range:
    • Designed to work with fluctuating power sources, the router supports a wide voltage input range between 5VDC and 40VDC, making it suitable for off-grid and remote installations.
  8. Management and Monitoring:
    • Accessible via a web-based interface or network management software (NMS), the router provides real-time monitoring, remote diagnostics, and firmware updates.
  9. Compliance and Certifications:
    • The router complies with industry standards and certifications, including RCM, CE and RoHS, ensuring compliance with regulations and safety standards.

The Comset CM820Q-6 4G LTE Cat 6 Industrial Router with SMS Control and Automatic Failover is an ideal solution for industries and applications where reliable and high-speed connectivity is crucial. Whether in remote locations or critical infrastructure, this router ensures that your network stays online and responsive, minimising downtime and optimising productivity.

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Basic Features

  • Supports multi-band 4G, 4GX, DC-HSPA+, HSPA+, HSPA, UMTS
  • SMA Standard antenna (4 magnetic base antennas included)
  • Optimized EMC design
  • Always on-line: On-line detection and automatic redial
  • Wide range power input (5-40VDC)
  • Can be powered via PoE 12VDC or 24VDC
  • Smart power management
  • Reliable, flexible, easy to use
  • User friendly set-up wizard for easy configuration and setup
  • Network traffic real-time graphs
  • Network Diagnostic Tools (Ping, Traceroute and NSLookup)
  • RS-232 interface transparent communication (DTU modem function)
  • 4 Ethernet LAN RJ45 ports & 1 Ethernet WAN RJ45 port
  • WiFi 802.11b/g/n

Enhanced Features

  • Real-time clock
  • VPN Server/Client (Open VPN, PPTP, L2TP, IPSec), and VPN pass-through
  • Built-in DHCP server
  • Supports DHCP Relay
  • Supports NAT and DMZ host
  • Supports DNS proxy and Dynamic DNS (DDNS)
  • Supports Static routing table
  • Supports packet filtering
  • Built-in multi-routing backup (Ethernet and dialup network)
  • System and network monitoring
  • WAN interface traffic statistics
  • Supports multiple protocol conversion
  • Transparent data transmission (DTU feature)
  • WEB/Telnet/console management interface
  • Supports radio network data envelope counting
  • Self-diagnostic and alarm output
  • Local/remote profiles backup and retrieve
  • Local/remote firmware upgrade via the web
  • Remote web management
  • Urgent event alarm via SMS
  • Firewall, packet filtering
  • Supports data centre communication
  • Supports NTP
  • Supports LED status indication
  • Supports VLAN ID tagging
  • Supports LCP, ICMP check
• Compatible Mobile Networks
o 4G/ 4GX
• Cellular Frequency
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B28 (700)
  • B32 (1500)
o 4G LTE TDD band B38, B40, B41
• Bandwidth
 Downlink 300Mbps
 Uplink 50Mbps
 Downlink 21/42Mbps
 Uplink 5.76Mbps
 Downlink 14.4Mbps
 Uplink 5.76Mbps
 Downlink 7.2Mbps
 Uplink 5.76Mbps
 Downlink 7.2Mbps
 Uplink 384 Kbps
• 802.11b/g/n; 300Mbps
• SMS call to control router to be online, offline, reboot, status info, alarm, WiFi on, WiFi off
• ID tagging Supported
Fail Over Redundancy (network backup feature)
• Auto-dial feature, keep alive link
Cellular (3G/4G), RJ45 WAN (xDSL, DHCP, Fixed IP), WiFi client
• DTU feature, serial RS232 to Cellular Gateway
• OpenVPN, IPSec, L2TP, PPTP
• Server and Client supported
Firmware upgrade
• Supported locally and remotely
Protocol support
• TCP, UDP, SMTP, POP, ICMP, FTP, PPP, PPPoE, DHCP, DDNS, DNS, SNMP, WPS, DMZ, Syslog (local and remote), NAT, xDSL, NTP, QoS, SNMP, Dynamic routing (OSPF, OSPF6, RIP, RIPng, BGP), support firmware update locally and remotely
• Supports 64/128 bits WEP, 802.1x, WPA and WPA2
• Supports WDS
• TKIP, AES encryption
• Supports WPA1/2- 802.1x
• Supports access with username and password
• Supports access control base WAN/LAN interface
• Supports access control base source IP address
• Defence DOS attack, supports SYN flooding, IP surfing, ping of death, fragile, teardrop, land
• Supports PAP and CHAP
• Supports IP filtering
Advanced Firewall Features
• Network Address Translation (NAT)
• Stateful Packet Inspection (SPI)
• VPN Pass-through
Media Access Control
• CSMA/CA with ACK
• Radius Client
• 4 x 10/100M LAN port (RJ45 interface)
• 1 x 10/100M LAN/WAN port (RJ45 interface)
• 2 x antennas for WiFi (detachable SMA interface x 2)
• 2 x antennas for Cellular (detachable SMA interface x 2, cellular supports diversity receiving MIMO)
• SYS*1
• VPN*1
• CELL*1
• WAN*1
• LAN*4
• WiFi*1
Serial port
• RS232 DB9 port
AT command
• Supported
UIM/SIM Card Slot
• Supports 1.8/3V UIM/SIM cards, one sim card slot standard mini size
Power Source
• Three types of power input
o 2.5mm DC jack
o Terminal block  (5VDC~40VDC)
o Power via PoE 12VDC or 24VDC
Power supply
• DC5V-40V, typical 12V 1.5A, 12V car use supported
Power consumption
• Current
o Idle 122mA@12VDC
o Max 208mA@12VDC
o Average 167mA@12VDC
• Power
o Idle 1.2W@12VDC
o Max 2.5W@12VDC
o Average 2W@12VDC
Device Management
• WEB interface (Internet Explorer, Mozilla Firefox, Chrome, Opera, Safari or other Java-enabled browsers)
Minimum System Requirements
• Mobile Internet Access Subscription
• Computer with Windows, Mac or Linux
Operating Temperature
• Storage -40°C to 85°C
• Working -30°C to 75°C
• 95% Maximum (non-condensing)
168mm x 104mm x 25mm
• 455g (not including antennas)
• 550g (including antennas)
• 850g (including all accessories)
• 1 Year
Regulatory Compliance
• RCM, CE, RoHS 
Package Contents
• CM820Q Router
• CAT5 Ethernet Cable
• Serial Cable
• Power Adapter
• 4 x Antennas

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3. How to configure Port Forwarding using DynDNS on a Comset CM685V-W or CM820V-W 3G/4G/4GX Router

4. How to configure Backup Redundancy on a Comset CM685V-W or CM820V-W 3G/4G/4GX Router

5. How to configure the SMS Command on a Comset CM685V-W or CM820V-W 3G/4G/4GX Router

6. How to configure IP Pass-through on the Comset CM685V and CM820V 3G/4G/4GX Router

7. How to configure Web Filtering on the Comset CM685V and CM820V 4G Routers

8. How to change a WAN port into a LAN and a LAN port into a WAN

9. How to configure VPN PPTP Server on the Comset CM685V, CM820V and CM950W Routers.

10. How to configure VPN L2TP over IPSec on the Comset CM685V, CM820V and CM950W Routers.

11. How to configure port forwarding on the Comset CM685V, CM820V and CM950W Routers

12. How to configure Whitelist and restrict remote access to pre-defined IP addresses on the CM685V, CM820V and CM950W Routers.

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