Comset CM685VX User manual

CM685VX User Manual
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Industrial 5G Router CM685VX
User Manual
Comset: 37/ 125 Highbury Rd, Burwood VIC 3125, Australia

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Table of Contents
1 Product Introduction ·························································································································································· 5
1.1 Product Overview ············································································································ 5
1.2 Typical Application Diagram ···································································································· 5
1.3 Features ····································································································································· 6
2 Hardware Installation ························································································································································· 8
2.1 Overall Dimensions ·················································································································· 8
2.2 Ports············································································································································ 9
2.3 Powering up the CM685VX ··································································································· 10
2.4 SIM/UIM cards ························································································································ 10
2.5 Terminal block ························································································································· 10
2.6 Grounding ································································································································ 11
2.7 Power Supply ·························································································································· 12
2.8 LED Description ······················································································································ 12
3 Software configuration ···················································································································································· 13
3.1 Overview ·································································································································· 13
3.2 How to log into the Router ····································································································· 13
3.3 Router status ··························································································································· 16
3.3.1 Status overview ··················································································································· 16
3.3.2 Network status ····················································································································· 17
3.3.3 Firewall Status ····················································································································· 20
3.3.4 Routes ··································································································································· 20
3.3.5 System log ···························································································································· 21
3.3.6 Kernel log ······························································································································ 22
3.3.7 Reboot log ···························································································································· 22
3.3.8 Realtime graphs··················································································································· 23
3.3.9 VPN ······································································································································· 24
3.4 System Configuration ············································································································· 25
3.4.1 Setup wizard ························································································································ 25
3.4.2 System ·································································································································· 29
3.4.3 Password ······························································································································ 30
3.4.4 NTP········································································································································ 32
3.4.5 Backup/Restore ··················································································································· 33
3.4.6 Upgrade ································································································································ 34
3.4.7 Reset ····································································································································· 35
3.4.8 Reboot ··································································································································· 35
3.5 Services configuration ············································································································ 36
3.5.1 ICMP check ·························································································································· 36
3.5.2 VRRP ···································································································································· 37
3.5.3 Failover (link backup) ·········································································································· 39
3.5.4 DTU ······································································································································· 41

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3.5.5 SNMP ···································································································································· 43
3.5.6 GPS (optional CM685VX-G model) ·················································································· 45
3.5.7 SMS ······································································································································· 46
3.5.8 VPN ······································································································································· 55
3.5.8.1 IPSEC ································································································································ 55
3.5.8.2 PPTP ·································································································································· 59
3.5.8.3 L2TP ··································································································································· 62
3.5.8.4 OpenVPN ·························································································································· 65
3.5.8.5 GRE tunnel ························································································································ 67
3.5.9 DDNS ···································································································································· 68
3.5.10 Connect Radio Module ····································································································· 72
3.6 Network Configuration ··········································································································· 73
3.6.1 Operation Mode ··················································································································· 73
3.6.2 Mobile configuration ············································································································ 74
3.6.3 Data Limitation ····················································································································· 75
3.6.4 LAN settings ························································································································· 76
3.6.5 Wired-WAN ··························································································································· 82
3.6.6 WiFi Settings ························································································································ 83
3.6.6.1 WiFi General Configuration ···························································································· 84
3.6.6.2 WiFi Advanced Configuration ························································································· 85
3.6.6.3 WiFi Interface Configuration ··························································································· 86
3.6.6.4 WiFi AP client ···················································································································· 88
3.6.7 Interfaces Overview ············································································································ 91
3.6.8 Firewall ·································································································································· 92
3.6.8.1 General Settings··············································································································· 92
3.6.8.2 Port Forwards ··················································································································· 92
3.6.8.3 Traffic rules ························································································································ 93
3.6.8.4 DMZ ···································································································································· 97
3.6.8.5 Security ······························································································································ 98
3.6.9 Static Routes ······················································································································ 100
3.6.10 Switch ································································································································ 101
3.6.11 DHCP and DNS ··············································································································· 102
3.6.12 Diagnostics ······················································································································· 104
3.6.13 Loopback Interface ········································································································· 105
3.6.14 Dynamic Routing ············································································································· 105
3.6.15 QoS ··································································································································· 107

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Copyright © COMSET 2020
Comset is a registered trademark of Comset. Other brands used in this manual are trademarks of their registered holders.
Specifications are subject to change without notice. No part of this manual may be reproduced without the consent of
Comset. All rights reserved.
WARNING: Keep at least a 20 cm distance between the user’s body and the modem router device.
Address： 37/ 125 Highbury Road, Burwood VIC 3125, Australia
Web： http://www.comset.com.au
Phone: [phone]
Fax: [phone]

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Chapter 1
1 Product Introduction
1.1 Product Overview
The Comset CM685VX is a New Generation 5G Industrial Router. Supporting both 5G SA and 5G NSA modes,
the CM685VX delivers lightning internet speeds of up to 2.5Gbps over the 5G networks with failover to 4G
LTE-A Cat 16 with speeds of up to 1.0Gbps. Powered by Qualcomm Snapdragon X55 chipset and built on
the fully featured OpenWrt Linux operating system, the CM685VX provides a powerful and rapidly
deployable internet solution to commercial customers and small to medium businesses.
The Comset CM685VX is an Innovative Router powered by a powerful 580MHz CPU. It features one Gigabit
LAN port for fast wired connections, 1 Gigabit WAN/LAN port for automatic failover between NBN/ADSL and
mobile 4G or 5G, as well as 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 Router, supporting frequencies across all major carriers worldwide. 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, including SOHO, SMB, industrial automation, building
automation, security, surveillance, transportation, health, mining and environmental monitoring.
1.2 Typical Application Diagram
The Comset CM685VX 3G/4G/5G Router is suitable for a wide range of business, commercial and machine-
to-machine applications (M2M). A good example is the connection of various IOT and M2M devices back
to a server over a secure 5G connection using a secure VPN IPSEC tunnel, as illustrated below.

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1.3 Features
The CM685VX supports the following:
 Worldwide 5G and LTE-A coverage
 Both SA and NSA modes
 1 x Gigabit Ethernet LAN port
 1 x Gigabit Ethernet WAN/LAN port
 WiFi N300 (802.11 a/b/g/n 2.4Ghz)
 6 x SMA standard detachable antennas included: 4 x cellular antennas and 2 x
WiFi antennas
 Optimised EMC design
 TR-069, Web management, SMS control, SSH/Telnet/Command, 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

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 Serial RS232 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
 Load balancing
 Robust Metal Case
 Desktop and Wall mount

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Chapter 2
2 Hardware Installation
1. Overall Dimensions
2. Accessories
3. Installation
2.1 Overall Dimensions

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2.2 Ports
LAN: LAN RJ45 Gigabit Ethernet port
WAN: WAN/LAN RJ45 Gigabit Ethernet port
RST: SYS reset button
PWR: DC power socket. DC5~40V standard. (DC5~50V optional)
VCC: DC wire positive pole
GND: DC wire ground
GND: Serial ground
RX: Serial receive
TX: Serial transmit
RST: Reset
DIO0: Digital I/O port 0
DIO1: Digital I/O port 1
DIO2: Digital I/O port 2
DIO3: Digital I/O port 3

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Antenna Connection Table
Antenna Connectors Remarks
Cell1 for cell antenna 1
Cell 2 for cell antenna 2
Cell 3 for cell antenna 3
Cell 4/GPS for cell antenna 4, or GPS antenna
WiFi1 for WiFi antenna 1
WiFi2 for WiFi antenna 2
2.3 Powering up the CM685VX
Please ensure the SIM card is inserted, and the antennas are connected before powering up
the router.
2.4 SIM/UIM cards
If your router has a SIM/UIM card cover, please remove it and have the SIM card properly
inserted.
2.5 Terminal block
Please refer to the following table on Pin description relating to the terminal block:
.

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Attention:
1. If you are not using the AC adapter supplied with the router, and if you wish to power
up the unit using the terminal block, the power cable should be wired with the correct
voltage polarity. Wrong wiring will destroy the equipment. Pin 1 and Pin 2 are reserved
for power, where Pin 2 is “GND” and PIN 1 is power input “VCC” (DC5~40V).
I/O Terminal on router Serial port RS232
Port 3 (GND) Pin 5
Port 4 (RX) Pin 2
Port 5 (TX) Pin 3
Note: If you do not get a serial connection, try to switch Port 4 and Port 5.
2.6 Grounding
To ensure a safe operation, the cabinet where the router is installed should be grounded
properly.
PIN Signal Description Note
1 VCC +5~40V DC Input Current: 12V/1A
2 GND Ground
3 GND Serial Ground
4 RX Receive Data
5 TX Transmit Data
6 RST Reset
To reset the router to factory
default, simply short the RST
pin with the GND Pin and hold
for 3 sec. If you hold for
1 sec, the router will reboot.
7 DIO3 General
Purpose
I/O
8 DIO2
General Purpose
I/O
9 DIO1
General Purpose
I/O
10 DIO0
General Purpose
I/O

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2.7 Power Supply
The CM685VX supports a wide range of DC voltage between 5 VDC and 40 VDC. The
router is supplied with a 12 VDC power adapter.
2.8 LED Description
Please refer to the following table for LED description.
LED Indication Light Description
SYS On for 25 seconds On for 25 seconds after power up
Blinks System normal operation
Off or still on after 25
seconds
System failure
LAN Blinks Ethernet data transmission
Off No Ethernet connection
On Ethernet is connected
VPN On IPSec VPN tunnel set-up
Off IPsec VPN tunnel not set-up or Down/Inactive
Cell Solid orange light Cell connection is Up and now you have access
to the Internet
Flashing orange light Attempting to establish an internet connection
WiFi On WiFi Enabled
Off WiFi Disabled
WAN Blinks Ethernet data transmission
Off No Ethernet connection
On Ethernet is connected
Signal Off No signal, or signal checking is not ready
Blinks once every 4s Signal bar is 1
Blinks once every 3s Signal bar is 2
Blinks once every 2s Signal bar is 3
Blinks once every 1s Signal bar is 4
Blinks twice every 1s Signal bar is 5

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Chapter 3
3 Software configuration
1. Overview
2. How to log into the router
3. How to configure the router
3.1 Overview
The CM685VX router has a built-in WEB interface. Below are instructions on how to access
the web interface and configure the router.
3.2 How to log into the Router
3.2.1 Network Configuration
The router’s default parameters are:
Default IP: 192.168.1.1
Subnet mask: 255.255.255.0
There are two ways to configure the IP address of your PC.
1) Manual settings
Set the PC IP to 192.168.1.xxx (xxx = 2~254), subnet mask: 255.255.255.0, default
gateway: 192.168.1.1, primary DNS: 192.168.1.1.

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2) DHCP settings
Choose “Obtain an IP address automatically” and “Obtain DNS server address
automatically”. Then click the ‘OK’ button.

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3.2.2 Log into the router
 Open a Web browser and type in 192.168.1.1 into the address field, then press “Enter”.
 Type in the username and password. Both username and password are “admin”.
Then click on the “Login” button.
To configure the router, you can skip the following section “Router status” and go straight to System>
Setup wizard which is covered in section 3.4.1

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3.3 Router status
3.3.1 Status overview
Click “Status” in the navigation bar, and then click “Overview”.

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3.3.2 Network status
The Network status page consists of three tabs, detailing information about Mobile, WAN and
LAN interfaces status.

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Mobile interface page:

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WAN status page:
LAN status page:

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3.3.3 Firewall Status
The Firewall status page shows the IPv4 and IPv6 rules and counters. Here, you can reset the
counters and restart the firewall functionality.
3.3.4 Routes
The Routes page shows rules which are currently active on the router. An ARP table is
displayed as well.