5G/4G/3G WiFi Router (CM685VX)

  • World’s Smallest 5G Industrial Router
  • 5G Modem Router with SIM card slot
  • Supports 5G SA and 5G NSA modes
  • Worldwide 5G and 4G LTE-A coverage
  • OpenWrt Fully Featured Linux OS
  • Two Gigabit Ethernet Ports (One LAN and one LAN/WAN)
  • Automatic failover between NBN/Starlink and 5G/4G/4GX
  • Built-in transient and reverse polarity voltage protection, over-current and over-voltage protection
  • SMS Control (check out the Comset SMS App)



The Comset CM685VX is a New Generation 5G Modem Router with SIM card slot. Supporting both 5G SA and 5G NSA modes, the CM685VX delivers lightning fast internet speeds over the 5G networks. In addition, it supports automatic failover to 4G LTE-A Cat-19. The CM685VX is powered by the Qualcomm Snapdragon X55 chipset. Furthermore, it is built on the fully featured OpenWrt Linux operating system. This allows the CM685VX to provide a powerful and rapidly deployable internet solution to commercial customers and small to medium businesses.

The Comset CM685VX is an Innovative 5G Modem Router powered by a powerful 580MHz CPU. It features one Gigabit LAN port for fast wired connections and one Gigabit WAN/LAN port for automatic failover, or load balancing, between NBN/Starlink and mobile 4G, 4GX or 5G. In addition, the CM685VX comes with a GPIO with four digital input/output ports.  Other features include VPN IPSEC, PPTP (Server and Client), L2TP and OpenVPN to establish a secure connection over the 4G/5G network.

The Comset CM685VX is a Global 5G Modem Router with SIM card slot. It supports frequencies in Australia and around the world. The innovative design, easy integration and rich built-in features make the CM685VX the router of choice for a wide range of business and commercial applications. This includes SOHO, SMB, industrial automation, building automation, security, surveillance, transportation, health, mining and environmental monitoring.

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  • Built-in 5G NR Sub 6 GHz industrial cellular module supporting both SA and NSA modes
  • CPU 580MHz
  • Powered by Qualcomm Snapdragon X55
  • Worldwide 5G and 4G LTE-A coverage
  • MIMO Technology (4×4, DL)
  • Load balancing between 5G/4G/4GX and fixed WAN NBN/ Starlink
  • 2 x Gigabit Ethernet ports (1 x LAN; 1 x LAN/WAN)
  • WiFi N300 2.4GHz (802.11 a/b/g/n)
  • 6 x SMA standard detacheable antennas included: 4 x cellular antennas, 2 x WiFi antennas
  • Optimised EMC design
  • Web management, SMS control, SSH/Telnet/CLI, SFTP, SNMP
  • Always on-line: On-line detection and automatic redial
  • Built-in transient and reverse polarity voltage protection, over-current and over-voltage protection
  • Wide range power input (5-40VDC)
  • Smart power management
  • 1 x RS232 Serial port
  • 4 x Digital Input ports, that can also be used as Digital Output ports
  • User friendly set-up wizard for easy configuration and setup
  • Network traffic real-time graphs
  • Network Diagnostic Tools (Ping, Traceroute and NSLookup)
  • Advanced security, VPN, and stateful firewall to protect sensitive data
  • Robust Metal Case
  • Desktop and Wall-mount
WAN 5G/4G/3G Cellular Modem
WiFi as WAN
Failover and Load Balancing
Advanced modem failure check
IP Pass-through
WAN ports support Cell/Static IP/DHCP/PPPoE (on demand, keep alive, schedule, manual, standby)
LAN DHCP Server, Client, Relay
DNS and DNS Proxy
Multicast/Multicast Proxy
QoS (DSCP and Priority Queuing)
MAC Address Filtering
VLAN 802.1Q
WiFi WiFi N300
802.11 a/b/g/n 2.4 GHz
WPA2 Enterprise (WiFi)
Hotspot/Captive Portal
SSID-based Priority
VPN AND ROUTING IPsec Tunnel, PPTP, L2TP, GRE Tunnel, OpenVPN, OSPF/BGP/RIP, Virtual Server/Port Forwarding, IPv6, VRRP.
MANAGEMENT Network Management Software (NMS)
Data Usage Alerts (router and per client)
Advanced Troubleshooting
Device Alerts
SMS control
802.1x authentication for Ethernet
Certificate support
MAC Address Filtering
Advanced Security Mode (local user management only)
Per-Client Web Filtering
IP Filtering
Content Filtering (basic)
Website Filtering
Zone-Based Object Firewall with host address (IP or FQDN), port, and mac address
NAT, SPI, port blocking, service filtering (FTP, SFTP, SMTP, HTTP, RPL, SNMP, DNS, ICMP, NNTP, POP3, SSH), protocol filtering, WAN ping (allow/ignore)
WAN Affinity and QoS allow prioritization of VoIP services
Advanced VPN connectivity options to HQ
SIP ALG and NAT to allow VoIP and UC communications to traverse firewall
MAC Address Filtering
802.1p/q for LAN QoS segmentation and treatment of VoIP on LAN
Private Network support (wired and 4G/5G WAN)
Firmware update supports firmware update locally, remotely (LAN, WiFi and OTA WAN)
DI/DO (Digital Input and Output) 4 x Digital Input ports for alarm notification via email or SMS. These can also be used as Digital Output ports to control electrical devices via SMS or GUI (a DIO board  is required)
Other Cellular and WiFi MIMO
Syslog (local and remote)
DNS proxy
Optimized EMC design
Real-time clock (NTP, update with defined hours)
WAN/LAN/Memory statistics
Redundancy and Load Balancing Failover between NBN/ADSL and 5G Modem
Auto-dial feature, keep alive link
LCP, ICMP check
Built-in watch dog
Three-way redundancy: Cellular (3G/4G/5G), RJ45 WAN (xDSL, DHCP, Fixed IP), WiFi client
Load balancing
Intelligent Routing UPnP, DMZ, virtual server/port forwarding, routing rules, NAT-less routing, wired or wireless WAN-to-LAN IP passthrough, route management, per-interface routing, content filtering, IP filtering, website filtering, per-client Web filtering, local DHCP server, DHCP client, DHCP relay, DNS, DNS proxy, Split DNS; ALGs: PPTP, SIP, TFTP, FTP, IRC; MAC address filtering, Dynamic DNS, LAN/WAN affinity, STP, enterprise routing protocols: BGP/OSPF/RIP, multicast proxy
Management Web-based GUI (local management), optional RADIUS or TACACS+ username/password; remote WAN web-based management w/ access control (HTTP, HTTPS); SNMP v1, v2c, & v3; CLI over SSH, SSH to serial, SSH to telnet, SFTP; API; one-button firmware upgrade; modem configuration, update, and management; modem data usage w/ alerts, per-client data usage; custom AT scripting to modems; SMS.
VPN IPsec – Tunnel, NAT-T, and transport modes; Hash (MD5, SHA128, SHA256, SHA384, SHA512), Cipher (AES, 3DES, DES);
GRE tunnelling;
PPTP support;
L2TP, L2TP over IPSec support;
VPN pass-through;
Certificate support;
Multiple networks supported in a single tunnel, site-to-site dynamic VPN with NHRP; VTI Tunnel support;
SMS, SMS Control and Alarm Receive and Send SMS;
WAN Cell APN configuration via SMS;
SMS Control and Alarm. SMS or Call to control router to be online, offline, reboot, signal and status monitor (check out the Comset SMS App)
SMS text send/receive.
Hardware CPU: 580Mhz;
RAM: 512 Mb DDR, option for up to 4Gb DDR;
Flash: 256Mb, option for up to 8Gbit
WAN Integrated 5G modem (with 4G and 3G failover);
10/100/1000Mbps Gigabit Ethernet WAN port – NBN/ADSL;
WiFi as WAN; MIMO “N” 2.4 GHz; 802.11 a/b/g/n
LAN/WiFi WiFi N300; 802.11 a/b/g/n;
10/100/1000Mbps Gigabit Ethernet LAN port.
Ports Power (2 Pins Terminal Block for wire connection)
2 x Ethernet LAN/WAN
4 x cellular (or 3 x cellular and 1 x GPS) antenna connectors SMA
2 x WiFi antenna connectors SMA
1 x Serial connector RS232 (3 Pins Terminal Block)
4 x Digital I/O ports (Terminal Block)
Power DC input steady state voltage range: 5-40 VDC (requires inline fuse for vehicle installations);
For 9–24 VDC installations, use a 3 A fuse;
For > 24 VDC installations, use a 2.5 A fuse;
Reverse polarity and transient voltage protection per ISO 7637-2
Ignition sensing (automatic ON and time-delay OFF);
Power consumption:
Idle: typical=100mA@12VDC; Maximum=500mA@12VDC;
Tx/Rx: typical=300mA@12VDC; Maximum=800mA@12VDC;
12VDC 1.5A adapter included
UIM/SIM Card Slot Supports 1.8V/3V UIM/SIM card
Other Reset button
Size 100mm x 60mm x 21mm
Weight 230g (not including the antennas)
380g (including the antennas)
860g (including all accessories)
Temperature  −35 °C to 75 °C operating;
−40 °C to 85 °C storage
Humidity (non-condensing) 5% to 95% operating;
5% to 95% storage
Case Alloy; Black colour
Compatible Mobile Networks 5G NR



Cellular Frequency o 5G NR SA & NSA








o 4×4 MIMO DL



Bandwidth o 5G SA (Stand Alone)

§ Downlink 2.4Gbps

§ Uplink 900Mbps

o 5G NSA (Non-Stand Alone)

§ Downlink 3.4Gbps

§ Uplink 550Mbps

o 4G LTE

§ Downlink 1.6Gbps (CAT 19)

§ Uplink 200Mbps (CAT 18)


§ Downlink 42Mbps

§ Uplink 5.76Mbps

Wi-Fi WiFi N300 802.11a/b/g/n;
Can be used as AP or Client. Frequency Range:
2.412 ~ 2.472GHz
Warranty 1 Year Warranty
Package Contents CM685VX 5G Router
Ethernet and Serial Cables
Power Adapter
4 x Cellular Antennas, 2 x WiFi Antennas
Regulatory Compliance RCM, CE, RoHS

Modem is Telstra approved

1. How to insert a SIM card and connect the antennas to the Comset CM685VX 5G 4G Router

2. How to configure SMS to control the Comset CM685V, CM770W and CM950W Router

3. How to configure Load Balancing on the Comset CM770W-6 Router

4. How to configure the Comset SMS App

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

6. How to configure VPN IPSec on the Comset CM950W and CM685VX 5G Routers

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

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

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

10. How to configure SMS and Email notifications on the Comset CM685VX and CM950W 5G Routers

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

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