Comprehensive Product Summary – Neousys IGT‑21 Industrial IoT Gateway

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### 1. Product Overview

Product Name: IGT‑21
Model: IGT‑21
Series: IGT‑20 Series (includes IGT‑20, IGT‑21, IGT‑22)
Article Number: IGT‑21
Manufacturer: Neousys Technology Inc.
Product Type: Industrial Grade ARM‑based Smart Wireless IoT Gateway
Processor Platform: Texas Instruments Sitara AM3352 (ARM Cortex‑A8, 1 GHz)
Operating System: Pre‑installed Debian Linux (Debian 8 or Debian 9)
Intended Use: Industrial Internet of Things (IIoT) gateway for Industry 4.0, automation, and data acquisition applications.
Form Factor: Compact fanless box PC with DIN‑rail mounting capability.

The Neousys IGT‑21 is a rugged, fanless, ARM‑based industrial IoT gateway designed for reliable operation in harsh environments. It integrates a TI Sitara AM3352 1 GHz processor, 1 GB DDR3L memory, dual microSDHC storage slots, isolated digital I/O, dual serial ports, and a CAN bus interface. The system is pre‑loaded with Debian Linux, enabling rapid deployment for industrial automation, remote monitoring, and data communication tasks.

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### 2. Key Features

- ARM‑based Industrial Gateway: Built around the TI Sitara AM3352 ARM Cortex‑A8 processor running at 1 GHz, optimized for low‑power, high‑reliability embedded applications.
- Pre‑installed Debian OS: Ships with Debian 8 or 9, providing a stable, open‑source Linux environment for application development and deployment.
- Rugged Fanless Design: Operates fanlessly from –25 °C to +70 °C at 100 % CPU load, ensuring reliability in industrial and outdoor environments.
- Wide Power Input Range: Accepts 8 VDC – 25 VDC input, suitable for factory and field power systems.
- Comprehensive I/O:
- 1 × 10/100 Mbps Ethernet port
- 1 × USB 2.0 port
- 2 × software‑configurable RS‑232/422/485 serial ports
- 1 × 3‑wire RS‑232 console port
- 4 × isolated digital inputs and 4 × isolated digital outputs
- 1 × isolated CAN bus 2.0 A/B interface (IGT‑21 only)
- Wireless Expansion: Full‑size mini‑PCIe slot (USB 2.0 signal only) and external USIM holder for 3G/4G/LTE or Wi‑Fi modules.
- Dual microSDHC Storage: One internal and one external slot for system and user data separation or rapid OS deployment.
- User Interaction: Six user‑programmable LEDs and two programmable function buttons for custom control and status indication.
- Industrial Durability: CE/FCC Class A certified, 5 Grms vibration and 50 Grms shock resistance.
- Compact Footprint: 41 mm (W) × 77 mm (D) × 104 mm (H), weight 0.4 kg, DIN‑rail mountable.

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### 3. Technical Specifications

Processor: TI Sitara AM3352 ARM Cortex‑A8 @ 1 GHz
Memory: 1 GB DDR3L SDRAM (onboard)
Storage:
- 1 × internal microSDHC slot (system or data)
- 1 × external microSDHC slot (system or data)
Operating System: Debian 8 or Debian 9 (pre‑installed)

I/O Interfaces:
- Ethernet: 1 × 10/100 Mbps LAN (RJ‑45)
- USB: 1 × USB 2.0 Type‑A
- Serial Ports: 2 × software‑configurable RS‑232/422/485 (up to 115.2 kbps, auto flow control for RS‑485)
- Console Port: 1 × 3‑wire RS‑232 (CTX, CRX, GND)
- Digital Inputs: 4 × isolated DI (photocoupler interface, 2500 Vrms isolation, Logic 0 = 5–24 V, Logic 1 = 0–1.5 V, 3.81 mm pitch)
- Digital Outputs: 4 × isolated DO (N‑channel MOSFET, 2500 Vrms isolation, up to 24 VDC 100 mA per channel, 3.81 mm pitch)
- CAN Bus: 1 × isolated CAN 2.0 A/B (IGT‑21 only)
- Wireless Expansion: 1 × full‑size mini‑PCIe (USB 2.0 signal only) + 1 × external SIM slot
- Antenna Opening: 1 × SMA connector mount for Wi‑Fi or 3G/LTE antenna

Indicators & Controls:
- 6 × user‑programmable LEDs (amber)
- 2 × user‑programmable buttons
- 1 × power button
- 1 × reset button
- Power status LED (green)

Power Input: 8 – 25 VDC via 3‑pin terminal block (V+, V–, FG)
Power Consumption: Low‑power ARM architecture (< 10 W typical)

Mechanical:
- Dimensions: 41 (W) × 77 (D) × 104 (H) mm (approx. 103.65 × 41.05 × 76.5 mm enclosure)
- Weight: 0.4 kg
- Mounting: DIN‑rail mount kit included

Environmental:
- Operating Temperature: –25 °C to +70 °C (fanless at 100 % CPU load)
- Vibration Resistance: 5 Grms
- Shock Resistance: 50 Grms
- EMC Compliance: CE/FCC Class A (EN 55032)
- Humidity: Industrial grade (non‑condensing)

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### 4. Functionality

The IGT‑21 functions as an intelligent data gateway bridging field devices, sensors, and cloud or enterprise networks. Its ARM‑based architecture and Debian OS enable flexible deployment of custom applications for data acquisition, protocol conversion, and remote monitoring.

Typical Use Cases:
- Industrial automation and machine control
- Remote asset monitoring and predictive maintenance
- Data logging and sensor aggregation
- CAN bus network integration for industrial controllers
- Edge computing and protocol translation (MQTT, Modbus, CANopen, etc.)
- Wireless telemetry via 3G/4G/LTE or Wi‑Fi

Operation Principle:
The gateway collects data from connected sensors or controllers through its serial, digital, or CAN interfaces. Data can be processed locally using Debian‑based applications and transmitted to remote servers or cloud platforms via Ethernet or wireless modules. The isolated I/O ensures electrical protection and signal integrity in noisy industrial environments.

Compatibility:
- Compatible with standard industrial communication protocols (Modbus RTU/TCP, CAN 2.0 A/B)
- Supports mini‑PCIe wireless modules for LTE Cat. 6 (NSIO‑LTE‑7455 optional) and Wi‑Fi
- Works with standard microSDHC cards (SDHC compliant)
- Debian Linux compatible with Python, C/C++, Node‑RED, and other open‑source frameworks

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### 5. Components & Accessories

Included Items (Packing List):
1. IGT‑21 system unit × 1
2. 3‑pole DC terminal block × 1
3. 10‑pole terminal blocks × 3 (for DI/DO and console connections)
4. Cover plate × 1
5. M3 flat screw × 1
6. DIN‑rail clip set × 1

Optional Accessories:
- NSIO‑LTE‑7455: Cat. 6 LTE embedded socket modem for cellular connectivity
- Wi‑Fi mini‑PCIe module with SMA antenna connector
- Wide‑temperature microSD cards (for sub‑zero operation)

Connectors & Interfaces:
- Front panel: Ethernet, USB 2.0, external microSDHC, SIM slot, DI/DO connectors, console port, user buttons, LEDs
- Top panel: DC input, RS‑232/422/485 ports, power and reset buttons, antenna opening

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### 6. Installation & Setup

Requirements:
- Power supply within 8 – 25 VDC range
- DIN‑rail mounting surface or panel mount adapter
- Proper grounding and ESD precautions

Mounting Procedure:
1. Attach the DIN‑rail clip to the rear of the enclosure using the provided M4 screws.
2. Hook the top edge of the clip onto the DIN rail and press the bottom until it snaps securely.
3. Verify the mount is firm and aligned.

Configuration & Login:
- Via Console Port: Connect to the 3‑wire RS‑232 console (CTX, CRX, GND) using a cross‑over cable. Use a terminal application (e.g., PuTTY) to access the CLI. Default login: `root` (no password).
- Via Ethernet: Connect host PC to Ethernet port (10/100 Mbps, AUTO‑MDIX). Default IP: 192.168.8.2. Login via SSH using `root`.

Storage Installation:
- External microSDHC and SIM slots are behind the front cover plate. Power off before insertion.
- Internal microSDHC slot requires enclosure disassembly for installation or replacement.

Wireless Module Installation:
- Disassemble enclosure to access mini‑PCIe slot. Insert module at 45° angle, secure with screw, and route antenna cable to SMA opening.

CAN Bus Termination:
- Internal jumper enables/disables termination resistor. Install jumper to enable 120 Ω termination when IGT‑21 is at bus end.

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### 7. Performance & Capabilities

Processing Performance:
- 1 GHz ARM Cortex‑A8 CPU with NEON co‑processor for efficient integer and floating‑point operations.
- Optimized for low‑latency I/O and real‑time data handling.

Memory & Storage:
- 1 GB DDR3L RAM supports lightweight edge applications and data buffering.
- Dual microSDHC design enables redundant storage or separation of system and user data.

I/O Throughput:
- Serial ports support up to 115.2 kbps with auto flow control for RS‑485.
- Ethernet 10/100 Mbps full‑duplex for LAN or uplink communication.
- CAN bus 2.0 A/B for real‑time controller communication.

Reliability & Durability:
- Fanless design eliminates moving parts and reduces maintenance.
- Wide temperature operation (–25 °C to +70 °C) ensures continuous function in industrial settings.
- Shock and vibration resistance (50 Grms / 5 Grms) for mobile or factory environments.

Limitations:
- Single‑core ARM processor limits heavy computational tasks.
- No native HDMI or display output — headless operation only.
- USB 2.0 only (no USB 3.0 support).

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### 8. Standards & Compliance

Certifications & Regulatory Compliance:
- CE Marking: Complies with European Union directives for EMC and safety.
- FCC Class A: Conforms to Part 15 of FCC Rules for commercial digital devices.
- Shock & Vibration: Tested to 50 Grms shock and 5 Grms vibration standards.
- EMC Standard: EN 55032 (Class A).

Environmental Compliance:
- RoHS compliant materials and manufacturing process.
- Designed for industrial temperature range and extended lifecycle operation.

Industry Standards Supported:
- CAN 2.0 A/B protocols
- RS‑232/422/485 serial communication standards
- Ethernet IEEE 802.3 10/100 Mbps
- USB 2.0 compliance
- SDHC storage standard

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### 9. Additional Information

Warranty & Support:
- Standard Neousys Technology hardware warranty (terms per latest policy).
- Firmware and software updates available via Neousys website or authorized service partners.
- Technical support available through regional offices (Taiwan, USA, China).

Maintenance & Service:
- Only qualified personnel should service the system.
- Disconnect power and cables before servicing.
- Observe ESD precautions when handling internal components.
- Modules such as microSD cards and mini‑PCIe cards are user‑replaceable.

Software Updates & Customization:
- Neousys may release updated firmware or Debian images for enhanced functionality.
- Users can develop custom applications using standard Linux tools and libraries.

Safety Precautions:
- Install on a sturdy DIN rail or panel.
- Ensure accessible power socket and proper grounding.
- Avoid placing objects on power cords or data cables.
- Disconnect power before touching internal modules.

Manufacturer Contact Information:

Neousys Technology Inc. (Headquarters)
15F, No. 868‑3, Zhongzheng Rd., Zhonghe Dist., New Taipei City 23586, Taiwan
Tel: +886‑2‑2223‑6182   Fax: +886‑2‑2223‑6183
Email: sales@neousys‑tech.com   Website: www.neousys‑tech.com

Neousys Technology America Inc.
3384 Commercial Avenue, Northbrook, IL 60062, USA
Tel: +1‑847‑656‑3298

Neousys Technology (China) Ltd.
Room 612, Building 32, Guiping Road 680, Shanghai, China
Tel: +86‑21‑61155366

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### Summary

The Neousys IGT‑21 is a compact, industrial‑grade IoT gateway engineered for reliability, connectivity, and flexibility in demanding environments. Powered by a TI Sitara AM3352 ARM Cortex‑A8 processor and pre‑installed Debian Linux, it provides a robust platform for industrial automation, remote monitoring, and data communication. Its isolated digital I/O, dual serial ports, and CAN bus interface make it ideal for integrating legacy and modern industrial systems. With wide‑range DC input, fanless operation, and comprehensive I/O options, the IGT‑21 delivers dependable performance for Industry 4.0 and IIoT applications.