Moxa

AIG-501 Series

4-port Modbus to Azure advanced IIoT gateways with Intel Atom® quad-core 1.91 GHz processor, Azure IoT Edge

AIG-501 Series

Features and Benefits

  • Supports generic MQTT client
  • Supports MQTT connection with built-in device SDKs for Azure/AWS cloud
  • Supports Modbus RTU/ASCII/TCP master/client
  • Supports Modbus TCP server
  • Supports Azure IoT Edge
  • Supports easy device-provisioning with the ThingsPro Proxy utility
  • Supports data buffering using store and forward and datalogger
  • Provides robust OTA function to prevent system failure during software upgrades
  • Equipped with Secure Boot to prevent malicious software-injection attacks
  • -40 to 70°C operating temperature range
  • LTE Cat. 4 US, EU, and APAC models available

Certifications

  • UL Listed
  • FCC

Introduction

AIG-501 Series advanced IIoT gateways are designed for Industrial IoT applications, especially for distributed and unmanned sites in harsh operating environments. The gateways implement Modbus RTU/TCP master/client protocols which can help you to effortlessly collect data from Modbus devices. Moreover, Azure IoT Edge software is preloaded and seamlessly integrated with the AIG-501 to enable easy, reliable, yet secure sensor-to-cloud connectivity for data acquisition and device management using the Azure Cloud solution. With the use of the ThingsPro Proxy utility, the device provisioning process is easier than ever. Thanks to the robust OTA function, you never have to worry about system failure during software upgrades. With the Secure Boot function enabled, you can prevent malicious software injection attacks, especially during the boot-up process.

Models in this series (5)

AIG-501-T-US-AZU-LXAIG-501-T-AP-AZU-LXAIG-501-T-EU-AZU-LXAIG-501-T-AZU-LX
CPU1.91 GHz1.91 GHz1.91 GHz1.91 GHz
RAM4 GB4 GB4 GB4 GB
Storage32 GB32 GB32 GB32 GB
TPMBuilt-inBuilt-inBuilt-inBuilt-in
mPCIe SlotUS region LTE module preinstalledAPAC region LTE module preinstalledEurope region LTE module preinstalledReserved for Wi-Fi module
Operating Temperature-40 to 70°C-40 to 70°C-40 to 70°C-40 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)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 AIG-501-T-AP-AZU-LX. Per-model differences are listed in the selection grid above.

Computer

CPU
Intel Atom® E3845 processor (2M cache, 1.91 GHz)
DRAM
4 GB DDR3L
Storage Pre-installed
32 GB CFast eMMC
Pre-installed OS
Linux Debian 9, Kernel 4.9
Graphics Controller
Intel® HD Graphics
No. of Tags Supported
4096

Computer Interface

Ethernet Ports
Auto-sensing 10/100/1000 Mbps ports (RJ45 connector) x 4
Serial Ports
RS-232/422/485 ports x 4 (software-selectable, DB9 male connector)
Digital Input
DIs x 4
Digital Output
DOs x 4
USB 2.0
USB 2.0 hosts x 2, type-A connectors
Wi-Fi Antenna Connector
RP-SMA x 2 (AIG-501-T-AZU-LX)
Cellular Antenna Connector
SMA x 2 (excluding AIG-501-T-AZU-LX)
GPS Antenna Connector
SMA x 1 (excluding AIG-501-T-AZU-LX)
Expansion Slots
mPCIe slots x 1 (AIG-501-T-AZU-LX)
SIM Format
Mini
Number of SIMs
1
Video Output
VGA x 1, 15-pin D-sub connector (female)
Buttons
Reboot Reset to factory default
TPM
TPM v2.0

Ethernet Interface

10/100/1000BaseT(X) Ports (RJ45 connector)
4
Magnetic Isolation Protection
1.5 kV (built-in)

Ethernet Software Features

Industrial Protocols
Modbus TCP Client (Master) / Server (Slave) Generic MQTT Azure IoT Device AWS IoT Core Azure IoT Edge Sparkplug B Client OPC UA Server FTP/SFTP
Configuration Options
Web Console (HTTP/HTTPS) ThingsPro Proxy Utility
Time Management
NTP Server/Client GPS

Serial Interface

No. of Ports
4
Connector
DB9 male
Baudrate
300 bps to 115.2 kbps
Data Bits
5, 6, 7, 8
Stop Bits
1, 2
Parity
None Even Odd Space Mark
Flow Control
RTS/CTS, XON/XOFF

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

Serial Software Features

Industrial Protocols
Modbus RTU/ASCII Master

Digital Inputs

Connector
Spring-type Euroblock terminal
Sensor Type
Dry contact
Dry Contact
Off: open On: short to GND
Isolation
None

Digital Outputs

Connector
Spring-type Euroblock terminal
Current Rating
10 mA (max.) total for all channels
I/O Type
Sink
Isolation
None

Cellular Interface

Cellular Standards
LTE Cat. 4
Band Options (US)
LTE Band 2 (1900 MHz) / LTE Band 5 (850 MHz) / LTE Band 12 (700 MHz) / LTE Band 13 (700 MHz) / LTE Band 14 (700 MHz) / LTE Band 66 (1700 MHz) / LTE Band 71 (600 MHz) UMTS/HSPA Band 2 (1900 MHz) / Band 5 (850 MHz) Carrier Approval: Verizon, AT&T Note: LTE Band 71 (600 MHz). is not included in the selectable antenna support range. Please contact Moxa if you need to use this band.
Band Options (EU)
LTE Band 1 (2100 MHz) / LTE Band 3 (1800 MHz) / LTE Band 7 (2600 MHz) / LTE Band 8 (900 MHz) / LTE Band 20 (800 MHz) UMTS/HSPA Band 1 (2100 MHz) / Band 3 (1900 MHz) / Band 8 (900 MHz)
Band Option (APAC)
LTE Band 1 (2100 MHz) / LTE Band 3 (1800 MHz) / LTE Band 5 (850 MHz) / LTE Band 8 (900 MHz) / LTE Band 28 (700 MHz) UMTS/HSPA Band 1 (2100 MHz) / Band 5 (850 MHz) / Band 8 (900 MHz)

GPS Interface

Receiver Types
GPS/GLONASS/BeiDou/Galileo/QZSS
Accuracy
Position: 2.0 m @CEP50
Time to First Fix (TTFF)
Hot start: 1.1 s Warm start: 22.1 s Cold start: 29.9 s
Sensitivity
Acquisition: -147 dBm Cold starts: -145 dBm Tracking: -160 dBm
Update Rate
1 Hz

Azure IoT Edge

Versions Supported
v1.4.33
Authentication Methods
Manual / Connection String DPS / Symmetric Encryption DPS / X.509 Certificate DPS / TPM
Azure Direct Methods
Reboot Software Upgrade Remote API Invocation
Azure Module Twin
Device Configuration
Moxa Functions
Custom Payload Message Group

Sparkplug B Client

Versions Supported
v2.2
Node Commands (NCMD)
Next Broker Reboot Rebirth
Moxa Functions
Store and Forward Custom Payload

OPC UA Server

No. of Client Connections
2
Security
Sign and encrypt with policies Basic128Rsa15, Basic256, and Basic256Sha256
User Authentication and Authorization
Username/password
Supported Profiles
OPC UA v1.02
No. of Supported Tags
1000

Generic MQTT Client

Versions Supported
v3.1.1 v3.1
QoS Levels
0, 1, 2
Authentication Methods
Username and password
Secure Transmission
TLS 1.0 TLS 1.1 TLS 1.2
Native Capabilities
Keep Alive Retain Message Clean Session Will and Testament
Moxa Functions
Store and Forward Custom Payload Remote API Invocation

Azure IoT Device

Connection Protocols Supported
MQTT MQTT over WebSockets AMQP AMQP over WebSockets
Authentication Methods
Symmetric Key X.509 Certificate
Azure Direct Methods
Reboot Software Upgrade Remote API Invocation

AWS IoT Core

QoS Levels
0,1
Authentication Methods
X.509 Certificate Private Key Trusted Root CA
Native Capabilities
Keep Alive
Moxa Functions
Store and Forward Custom Payload
Commands Invokable Via Jobs
Reboot Software Upgrade Remote API Invocation

Modbus RTU/ASCII

Mode
Client (Master)
Functions Supported
1, 2, 3, 4, 5, 6, 15, 16, 23
Max. No. of Commands
256/port
Max. No of Connected Devices
124

Modbus TCP

Mode
Client (Master), Server (Slave)
Functions Supported
1, 2, 3, 4, 5, 6, 15, 16, 23
Max. No. of Server Connections
64
Max. No. of Client Connections
4
Max. No. of Commands
4096

LED Indicators

System
Power x 1 Storage x 1
LAN
2 per port (10/100/1000 Mbps)
Serial
2 per port (Tx, Rx)

Power Parameters

Input Voltage
12 to 36 VDC
Input Current
2.5 A @ 12 VDC
Power Consumption
30 W (max.)
Power Connector
Screw-fastened Euroblock terminal

Reliability

Automatic Reboot Trigger
External WDT (watchdog timer)

Physical Characteristics

Housing
Metal
IP Rating
IP20
Dimensions
132 x 122 x 87 mm (5.2 x 4.81 x 3.43 in)
Weight
1,340 g (2.95 lb)
Installation
DIN-rail mounting (with optional kit) Wall mounting (with optional kit)

Environmental Limits

Operating Temperature
-40 to 70°C (-40 to 158°F)
Storage Temperature (package included)
-40 to 75°C (-40 to 167°F)
Ambient Relative Humidity
5 to 95% (non-condensing)
Shock
IEC 60068-2-27
Vibration
IEC 60068-2-64

Standards and Certifications

EMC
EN 55032/35 EN 61000-6-2/-6-4
EMI
CISPR 32, FCC Part 15B Class A
EMS
IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m IEC 61000-4-4 EFT: Power: 2 kV; Signal: 1 kV IEC 61000-4-5 Surge: Power: 1 kV; Signal: 1 kV IEC 61000-4-6 CS: 10 V IEC 61000-4-8 PFMF
Safety
UL 62368-1 EN 62368-1
Radio
NCC RCM
Carrier Approvals
AT&T Verizon PTCRB
RED
EN 300 328 EN 301 489-1/17/19/52 EN 301 511 EN 301 893 EN 301 908-1 EN 303 413 EN 62311
Hazardous Locations
Class I Division 2 ATEX
Green Product
RoHS, CRoHS, WEEE

MTBF

Time
AIG-501-T-US-AZU-LX, AIG-501-T-EU-AZU-LX, AIG-501-T-AP-AZU-LX: 441,032 hrs AIG-501-T-AZU-LX: 453,637 hrs
Standards
Telcordia (Bellcore) Standard TR/SR

Warranty

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

Resources

NameTypeVersionDate
moxa-aig-quickon84.5 MBUtilityv1.2.1Feb 04, 2026 Feb 04, 2026 Release notes
Firmware for AIG-501 Series464.2 MBFirmwarev1.5.0Nov 04, 2025 Nov 04, 2025 Release notes
AIG QuickON Utility84.8 MBUtilityv1.2.0Oct 21, 2025 Oct 21, 2025 Release notes
Firmware for AIG-501 Series452.3 MBFirmwarev1.4Nov 14, 2024 Nov 14, 2024 Release notes
ThingsPro Proxy Utility88.8 MBUtilityv1.3.9Nov 14, 2024 Nov 14, 2024 Release notes
AIG QuickON User Manual2.0 MBManualv1.0Nov 27, 2025
Manual for AIG-501 Series8.4 MBManualv2.1Nov 04, 2025
Declaration of Conformity (cybersecurity) for AIG-501 Series206.1 KBDeclarationv1.0Sep 17, 2025
FOSS Statement for ThingsPro Proxy79.4 KBDeclarationv1.0Dec 22, 2024
Datasheet for AIG-501 Series2.5 MBDatasheetv2.0Nov 26, 2024
FOSS Statement for AIG-501 Series1.4 MBDeclarationv1.0Oct 09, 2024
Declaration of Conformity for MC-1122-E4-TPM-T/AIG-501315.5 KBDeclarationv1.0May 10, 2024
Manual for ThingsPro Proxy2.1 MBManualv4.1Jul 12, 2022
QIG for AIG-501 Series1.2 MBQIGv1.0Jan 25, 2022
QIG for AIG-501 Series (AIG-501-T-AZU-LX)1.2 MBQIGv1.0Jan 25, 2022

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