EtherWAN AiR GUARD User manual

AiR GUARD

Industrial IoT Cellular Smart Security

Gateway

Building Trust in IIoT Devices

AiR GUARD Industrial IoT Cellular Smart Security Gateway

2

Preface

Audience

This guide is designed for the person who installs, configures, deploys, and maintains the Ethernet network.

This document assumes the reader has moderate hardware, computer, and Internet skills.

Document Revision Level

This section provides a history of the revision changes to this document.

Revision

Document Version

Date

Description

A

Version 1

09/30/2021

First version of document

A

Version 2

10/14/2021

Expanded descriptions of all device functions

A

Version 3

06/07/2022

All new function release document

A

Version 3.1

07/18/2022

Adjust Data Type description of Tag Rule and LED

A

Version 4

11/07/2023

Update Smart Data Logging function.

Add Event Engine and LINE Notify

Add Fare Saving warning.

Revise wording and Web Console user interface

AiR GUARD Industrial IoT Cellular Smart Security Gateway 
 
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Contents 
 
Preface .......................................................................................................................................................................... 2 
Audience ............................................................................................................................................................... 2 
Document Revision Level .................................................................................................................................. 2 
Contents ............................................................................................................................................................... 3 
Chapter 1 Introduction .............................................................................................................................................. 6 
1.1 Introduction .................................................................................................................................................. 6 
1.2 Contents List ................................................................................................................................................. 7 
Package Contents ....................................................................................................................................... 7 
Chapter 2 Hardware Guide ....................................................................................................................................... 8 
2.1 Product Overview ........................................................................................................................................ 8 
2.1 DC Power ...................................................................................................................................................... 9 
2.3 LEDs ............................................................................................................................................................ 10 
2.4 RESET key .................................................................................................................................................. 11 
2.5 Hardware Installation ............................................................................................................................... 12 
Mount the Unit ........................................................................................................................................ 12 
Insert the Nano SIM Card ...................................................................................................................... 13 
SD Card ..................................................................................................................................................... 14 
Connecting DI/DO Devices .................................................................................................................. 15 
Connecting Serial Devices ..................................................................................................................... 16 
Connecting to the Network or a Host ................................................................................................ 16 
Chapter 3 Web Console Configuration ................................................................................................................17 
3.1 Introduction ............................................................................................................................................... 17 
3.2 Status .......................................................................................................................................................... 19 
Overview ................................................................................................................................................... 19 
Firewall ...................................................................................................................................................... 22 
Routes ........................................................................................................................................................ 23 
System Log ................................................................................................................................................ 24 
Kernel Log ................................................................................................................................................. 25 
Realtime Graphs ...................................................................................................................................... 26 

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3.3 System ......................................................................................................................................................... 27 
System ....................................................................................................................................................... 27 
Administration ......................................................................................................................................... 30 
Mount Points ............................................................................................................................................ 32 
Backup / Flash Firmware ....................................................................................................................... 33 
Reboot ....................................................................................................................................................... 36 
3.4 VPN ............................................................................................................................................................. 37 
OpenVPN .................................................................................................................................................. 37 
OpenVPN Log .......................................................................................................................................... 39 
3.4 Service......................................................................................................................................................... 40 
Mosquitto ................................................................................................................................................. 40 
3.5 Network ...................................................................................................................................................... 42 
Interfaces .................................................................................................................................................. 43 
Hostnames ................................................................................................................................................ 60 
Static Routes ............................................................................................................................................ 62 
Diagnostics ............................................................................................................................................... 64 
Firewall ...................................................................................................................................................... 66 
3.6 Smart Data Logging .................................................................................................................................. 73 
Azure Sphere Port Settings ................................................................................................................... 76 
Protocol Selection to Cloud .................................................................................................................. 79 
JSON for Period Data Logging.............................................................................................................. 86 
Period Data Logging................................................................................................................................ 90 
Real-Time Data Logging ......................................................................................................................... 94 
CA Certificate ........................................................................................................................................... 99 
Modbus Log ............................................................................................................................................ 100 
MQTT Log ............................................................................................................................................... 101 
MQTT Data Log ..................................................................................................................................... 102 
Azure Log ................................................................................................................................................ 103 
Tag Diagnostics Shown ........................................................................................................................ 104 
Tag Diagnostics Settings ...................................................................................................................... 105 

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3.7 Event Engine ............................................................................................................................................ 106 
Event Ping ............................................................................................................................................... 106 
Event SMS............................................................................................................................................... 108 
3.8 Cloud Service ........................................................................................................................................... 109 
EWFOTA Settings ................................................................................................................................. 109 
3.9 Remote Service ....................................................................................................................................... 110 
MQTT Remote Service Overview ...................................................................................................... 110 
3.10 Fare Saving ............................................................................................................................................. 112 
3.11 Notify Messages ................................................................................................................................... 113 
LINE Settings .......................................................................................................................................... 113 
3.12 Logout ..................................................................................................................................................... 114 
Appendix .................................................................................................................................................................. 115 
Specifications ................................................................................................................................................. 115 
Contact Information .............................................................................................................................................. 117 
 
 
  

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Chapter 1 Introduction

1.1 Introduction

Congratulations on your purchase of this product: AiR GUARD Industrial IoT Cellular Smart Security Gateway.

Over the past few years, the Internet of Things (IoT) has captured headlines across the world. With its network

of “smart,” sensor-enabled devices that can communicate and coordinate with one another via the Internet,

the IoT can facilitate computer-mediated strategies for managing city resources, energy management, and

numerous other tasks. The IoT’s way forward may be complicated, however. As with any market in its early stages,

weak security is often an important concern for many projects. There have already been instances where hackers

have wreaked havoc by infiltrating connected IoT devices. With security being so essential, EtherWAN has

developed the AiR GUARD, an advanced IIoT cellular gateway specifically optimized for secure IoT data solutions.

Running with Microsoft’s Azure Sphere, it not only provides secure connectivity, but also provides industrial

protocols as well as easy to use data pre-processing and conversion for cost-efficient Edge to Cloud connection.

Main Features:

• Built-in Microsoft Security Technology

• Highly Reliable Network Connection

• Friendly 30W PoE for Connecting PoE Devices

• Powerful Data Processing and Conversion

• Automatic Over-the-air (OTA) Firmware Updates

Before you install and use this product, please read this manual in detail.

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1.2 Contents List

Package Contents

Items

Description

Contents

Quantity

1

AiR GUARD Security Gateway

1 pc

2

Cellular Antenna

2 pcs

3

3 pin Terminal Block

1 pc

4

4 pin Terminal Block

1 pc

5

6 pin Terminal Block

1 pc

7

DIN-Rail Bracket

1 pc

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Chapter 2 Hardware Guide

2.1 Product Overview

COM Port

2 x RS485

Power

Terminal Block

RJ-45 10/100/1000 BASE-T

PoE-PSE and LAN port

RJ-45 10/100/1000 BASE-T

WAN port

D/I D/O

Terminal Block

RJ-45 10/100 BASE-T

Azure Sphere managed

LAN Device port

RESET key

LED group

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2.1 DC Power

The AiR GUARD can be powered by connecting a DC power source to the terminal block. It supports 12 to 24VDC

power input. VIN connects to DC 12V and GND connects to DC 0V from your Power Supply, EGND is for Earth

ground. The following chart indicates the power terminal block pin assignments. Please check carefully and

connect to the right power requirements and polarity.

Reminding : Once PoE-PSE port connect to IP Camera, the DC Power Input should be 24VDC and 2A

at leased.

Description

VIN (DC+V)

1

GND (DC 0V)

2

Earth GND (Grounding)

3

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2.3 LEDs

Position

COM2

Serial 2 Link Status:

Green – Tx data sending

Red - RX data receiving

COM 1

Serial 1 Link Status:

Green - TX data sending

Red – Rx data receiving

AZS

Azure Sphere Status:

Steady Orange – Sphere

platform is under OTA

upgrading, combined COM1

and COM2 steady Green

Green blinking – Sphere is

regular running

Steady Green or steady

Off – Sphere hangs.

LTE

Cellular Link Status:

Red Blinking – SIM is not ready

Green Blinking – Cellular

Connected

Orange+RED Blinking – PS call is

not ready

Green Light – linked with good RSSI

Orange Light – linked with medium

RSSI

Red Light – linked with poor RSSI

SYS

System Status:

Off – Initial / all Network

disconnected

Green Light – External link is UP,

such as WAN and LTE connection

to Internet.

PWR

Power Indicator

Orange – Power on

under initialization

Green – Power on and

AiR GUARD initialization

completed

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2.4 RESET key

You can reboot device via a pin to RESET hole, or you can be “Reset to Default” by long press RESET hole by a

pin for 30 seconds.

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2.5 Hardware Installation

This chapter describes how to install and configure the hardware

Mount the Unit

The AiR GUARD can be mounted on a wall, horizontal plane, or DIN Rail in a cabinet with the mounting

accessories. The mounting accessories are not screwed on the product when shipped from factory. Screw the

DIN-rail bracket on the product first.

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Insert the Nano SIM Card

Follow the figures sequence below to insert SIM card

Fig 1 Fig 2

Fig 3 Fig 4 Fig 5

Fig 6 Fig 7

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SD Card

SD card is for System Log, Kernel Log, and Data Log storage. User have to ready it in slot, and not for

eject.

Electrical spec is Micro SD , SDHC, Class 10 or U1, 32GB above.

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Connecting DI/DO Devices

There is one DI (digital input, Isolated, "Logic 0": 0-2V, "Logic 1": 5-30V) and one DO (digital output, Isolated,

Non-Relayed Output, 24V/300mA for each port) port, which provide a voltage source to a grounded load.

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Connecting Serial Devices

The AiR GUARD has a 6-pin Terminal Block serial port for connecting to your serial devices. Connect the serial

device to the terminal block with the right pin assignments of RS-485 (shown below).

Description

COM1 – D+

1

COM1 – D-

2

COM1 - GND

3

COM2 – D+

4

COM2 – D-

5

COM2 - GND

6

Connecting to the Network or a Host

Use the LANPSE port to connect 10/100/1000Mbps Ethernet. It can auto detect the transmission speed on the

network and configure itself automatically. Connect one Ethernet cable to the RJ-45 port (LAN) of the device and

plug another end of the Ethernet cable into your computer’s network port. In this way, you can use the RJ-45

Ethernet cable to connect to the host PC’s Ethernet port for configuring the device.

Additionally, The LANPSE port can connect to powered devices without power. WAN/LAN connects the WAN

port for fixed WAN and LANAZS connects to Ethernet low speed device like Modbus/TCP devices.

Pin 1 2 3 4 5 6

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Chapter 3 Web Console Configuration

In the following chapters, you will see these command blocks

SAVE & APPLY to save and immediately take effect in system.

SAVE is just to save into configuration,

RESET is to forget the settings just done.

3.1 Introduction

To configure AiR GUARD for the first time, use an Ethernet cable to connect to the LANPSE port. To connect to

the AiR GUARD web console, open a web browser and enter the AiR GUARD IP address.

The default IP address is 192.168.123.254. Default username is “admin” and password is “Guard_2022_!@#$%”

➢ Example: https://192.168.123.254/

Default Login Account:

User: admin

Password: Guard_2022_!@#$%

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At the first-time login, the system will request a renew password page to change password.

Be careful to save this information. Otherwise, the only way to re-access is to long press RESET key to reset

device to default settings, including default password.

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3.2 Status

There are six status screens for monitoring the device and connections. They are: Overview, Firewall, Routes,

System Log, Kernel Log, and Realtime Graphs

Overview

The Overview status screen is divided into System, Memory, Network, Active DHCP Leases, and Wireless

sections.

System - This section displays the hostname, model, architecture, firmware version, kernel version, local time,

uptime, and load average.

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Memory – Displays total available, used, buffered, and cached memory.

Network – Displays protocol, IP address, Gateway, DNS and time connected for IPv4 upstream.

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