1. Introduction
The NETUM NT-91 is a compact and versatile 2D fixed-mount barcode scanner engine designed for embedded applications. It offers fast and stable decoding of both 1D and 2D barcodes, including QR codes, DataMatrix, and PDF417. With its plug-and-play USB connectivity and support for various operating systems, the NT-91 is ideal for integration into self-service kiosks, retail POS systems, and other automated scanning solutions.
2. Product Overview
The NT-91 is engineered for ease of integration and reliable performance. Its small form factor and robust design make it suitable for various environments.
2.1 Dimensions and Weight
2.2 Connectivity
The scanner primarily connects via USB, offering a plug-and-play experience without the need for additional drivers. RS232 connectivity is also available as an optional interface.
2.3 Supported Operating Systems
The NT-91 is compatible with a wide range of operating systems, ensuring broad integration possibilities.
3. Specifications
| Feature | Description |
|---|---|
| Products Status | Stock |
| Type | Barcode scanner, Mini 2D QR Bar Code Reader, Embedded Barcode Module |
| Scan Element Type | CMOS |
| Colour Depth | 32 Bit |
| Interface Type | COM, PS/2, USB (standard), RS232 (optional) |
| Max Paper Size | Depends on the barcodes |
| Optical Resolution | 4 mil |
| Scan Speed | 2600 times/sec |
| Brand Name | Netum or OEM |
| Place of Origin | Guangdong, China |
| Pixel | 1280pixel(H)*800pixel(V) |
| Supported Symbologies | 1D/2D barcodes, including QR, DataMatrix, PDF417 |
| Certificate | CE, ROHS, FCC, IP54, ISO |
| Scan Angle | 51° (H) x 34.5° (V) |
| Scan Accuracy | 1D>5mil, 2D>9mil |
| Scan Mode | Auto scan mode, Trigger mode, Continuous mode |
| Feature | Fast Scan, High Speed |
4. Setup
- Connect the Scanner: Plug the USB cable from the NT-91 scanner into an available USB port on your host device (e.g., computer, POS system, kiosk). If using the optional RS232 interface, connect it to the appropriate serial port.
- Power On: Ensure your host device is powered on. The scanner typically draws power directly from the USB or RS232 connection.
- Driver Installation (if necessary): For most operating systems (Windows, Mac, Android, Linux), the NT-91 is plug-and-play and will be recognized automatically as a HID keyboard device or virtual COM port. If prompted, allow the system to install necessary drivers. For specific embedded applications or custom configurations, refer to the SDK documentation.
- Test Connection: Open a text editor or a compatible application on your host device. Scan a known good barcode. The decoded data should appear in the application.
5. Operating Instructions
The NT-91 supports various scanning modes to suit different application needs.
5.1 Scanning Barcodes
Position the barcode within the scanner's field of view. The scanner will emit a light and attempt to decode the barcode. Once successfully decoded, the data will be transmitted to the connected host device.
5.2 Scan Modes
- Auto Scan Mode: The scanner continuously scans for barcodes within its field of view without requiring a trigger.
- Trigger Mode: Scanning is initiated by an external trigger signal (e.g., a button press if integrated into a device with a physical trigger).
- Continuous Mode: Similar to auto scan, but may have different timing or sensitivity settings for continuous reading.
The specific scan mode can typically be configured via software settings or by scanning configuration barcodes (refer to the full programming manual or SDK for details).
5.3 Typical Applications
The NT-91 is widely used in various settings requiring efficient barcode scanning.
5.4 Demonstration Video
Watch this video to see the NETUM NT-91 in action, demonstrating its capability to read multiple jewelry tags quickly.
6. Troubleshooting
- Scanner not recognized: Ensure the USB/RS232 cable is securely connected. Try a different port or restart the host device. Verify that the necessary drivers are installed (if not plug-and-play).
- No barcode data transmitted: Check if the scanner is powered on (indicated by an LED). Ensure the barcode is within the optimal scanning range and angle. Verify the host application is ready to receive input.
- Incorrect barcode data: Ensure the barcode is clean and undamaged. Check the scanner's configuration settings for the specific barcode symbology being used.
- Scanner not reading certain barcodes: Some barcode types might be disabled by default. Refer to the programming manual or SDK to enable specific symbologies (e.g., DataMatrix, QR).
- Slow scanning performance: Ensure the scanner lens is clean. Check for any obstructions. Optimize the scanning environment (e.g., lighting conditions).
7. Maintenance
- Cleaning the Lens: Regularly clean the scanner's optical window with a soft, lint-free cloth. For stubborn smudges, use a mild lens cleaning solution. Avoid abrasive materials that could scratch the lens.
- Cable Inspection: Periodically check the connection cables for any signs of wear, damage, or loose connections.
- Environmental Conditions: Operate the scanner within its specified environmental limits (temperature, humidity) to ensure optimal performance and longevity. The IP54 rating indicates protection against dust and splashing water, but avoid submerging the device.
- Firmware Updates: Check the manufacturer's website for any available firmware updates that may improve performance or add new features.
8. Warranty and Support
8.1 Warranty
The NETUM NT-91 comes with a 1-Year Warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper installation.
8.2 After-sales Service
NETUM provides comprehensive after-sales support, including:
- Return and Replacement
- Repair services
- Free spare parts (as per warranty terms)
- Onsite Training and Inspection (may vary by region/agreement)
- Call Center and Online Technical Support
For technical assistance or warranty claims, please contact your vendor or NETUM customer support directly.
9. Frequently Asked Questions (FAQ)
- Q: Is the NT-91 compatible with my operating system?
- A: Yes, the NT-91 is compatible with Mac OS, iOS, Android, Windows, and Linux operating systems.
- Q: Does the scanner require drivers?
- A: For most standard applications, the NT-91 is plug-and-play via USB and does not require manual driver installation.
- Q: What types of barcodes can the NT-91 read?
- A: It supports both 1D and 2D barcodes, including popular symbologies like QR, DataMatrix, and PDF417.
- Q: Can I integrate this scanner into my custom application?
- A: Yes, an SDK (Software Development Kit) is available to facilitate integration into custom applications.
- Q: What are the available interface types?
- A: The standard interface is USB, with RS232 available as an optional interface. COM and PS/2 are also listed as supported interface types.