TWN3 LEGIC NFC M

1 INTRODUCTION

1.1 ABOUT THIS MANUAL

This user manual is intended for the user and enables a safe and appropriate handling of the product. It provides a general overview, as well as important technical data and safety information about the product. Before using the product, the user should read and understand the content of this user manual.

For better understanding and readability, this user manual may contain exemplary pictures, drawings, and other illustrations. Depending on your product configuration, these pictures might differ from the actual design of your product.

1.2 ELATEC SUPPORT

For any technical questions, refer to the ELATEC website (www.elatec.com) or contact ELATEC technical support at: support-rfid@elatec.com

For questions regarding your product order or if you wish additional copies of this user manual, contact your Sales representative or ELATEC customer service at: info-rfid@elatec.com

1.3 REVISION HISTORY

2 INTENDED USE

The TWN3 LEGIC NFC M RFID reader module is designed for easy integration into various applications. This device supports either USB or RS-232 communication, depending on the connection cable, and is available as an OEM board (PCB) without housing for direct integration into embedded applications. The reader module can be programmed with a script language for autonomous execution of complex commands like login procedures, increment/decrement functions, and more.

TWN3 LEGIC NFC M is intended to be used as an RFID solution for secure access and data communication in different applications, such as printing, human-machine interfaces, and other industrial applications.

The product is intended to be integrated into a host device.

Any use other than the intended use described in this section, as well as any failure to observe the safety information listed in this document, will be considered misuse and will void the warranty. ELATEC is not responsible for any damage or injuries resulting from any misuse of the product.

3 SAFETY INFORMATION

Installation

• The installation of the product should be done by trained and qualified personnel only. Do not install the product by yourself.
• Metallic materials on or in direct vicinity to the product might reduce the reading performance. In some circumstances, plastic screws should be preferred to metallic screws when installing the product. Refer to the installation instructions or integration manual for more information.

Handling

• Depending on your product configuration, the product might be equipped with one or more light-emitting diodes (LED). Avoid direct eye contact with the blinking or steady light of the LEDs.
• The product has been designed for use under the following conditions:
  • Temperature range: -25 °C – 80 °C (operating conditions)
  • Relative humidity: 5% – 95% (non-condensing)
  • Integration into a host device.
• Any use of the product under different conditions might damage the product or alter its reading performance.
• The use of other RFID readers or reader modules in direct vicinity to the product, or in combination with the product, might damage the product or alter its reading performance. In case of doubts, contact ELATEC for more information.
• The user is liable for the use of spare parts or accessories other than those sold or recommended by ELATEC. ELATEC is not responsible for any damage or injuries resulting from the use of spare parts or accessories other than those sold or recommended by ELATEC.
• Like most electronic devices, RFID systems generate electromagnetic waves that can vary in amplitude and frequency. It is generally known and accepted that some RFID devices might potentially interfere with personal medical devices, like pacemakers or hearing aids. Users with a pacemaker or any other medical device should use TWN3 LEGIC NFC M carefully and refer to the information given by the manufacturer of their medical devices before using TWN3 LEGIC NFC M or any host device containing TWN3 LEGIC NFC M.

Maintenance and cleaning

• Any repair or maintenance work should be done by trained and qualified personnel only. Do not try to repair or carry out any maintenance work on the product yourself. Do not allow any repair or maintenance work on the product by an unqualified or unauthorized third party.
• The product does not need any special cleaning. Do not use any detergents or other cleaning agents on the product.

Disposal

• The product must be disposed of in accordance with the EU directive on waste electrical and electronic equipment (WEEE) or other applicable local regulations.

Product modifications

The product has been designed, manufactured, and certified as defined by ELATEC. Any product modifications not expressly approved by ELATEC, including but not limited to modifications of antennas or other radio-related components, are not allowed and will void the warranty and all approvals granted to the product. If you are unsure about any part of the safety information above, contact ELATEC support. Any failure to observe the safety information above will be considered misuse and will void the warranty. ELATEC is not responsible for any damage or injuries resulting from any misuse of the product.

4 TECHNICAL DATA

Power supply: 5.0 V ± 10% via communication cable (USB); serial version requires external power supply (see chapter "Power Up").

Current consumption: 140 mA typically (USB, normal operation); 200 mA peak.

Antenna

The reader module is equipped with the following antenna:

Description of Image: The image displays the TWN3 LEGIC NFC M module, highlighting its integrated High Frequency (HF) antenna. The antenna is circular and mounted on the printed circuit board (PCB).

TWN3 LEGIC NFC M – HF antenna (integrated)

HF antenna (13.56 MHz)

Dimensions: 39.5 mm x 48 mm / 1.56 inch x 1.89 inch

Number of turns: 4

For more information, refer to the related product data sheet or other technical documents.

5 MODE OF OPERATION

5.1 OPERATING MODE

To start operating the TWN3 LEGIC NFC M, it simply has to be connected directly to a host device.

5.2 POWER UP

If an external power supply unit is used, the following requirements must be satisfied:

• Limited power source according to the safety norms listed in the respective declaration(s) of conformity.
• Short-circuit current < 8 A.

Once TWN3 LEGIC NFC M is connected to the host, it detects the type of communication cable (e.g., USB or RS-232) with which it is connected. In case of RS-232, it additionally sends a version string via RS-232 to the host.

5.3 ENUMERATION

This is applicable only for the USB version: Once the device has been powered up, it waits for completion of the enumeration by the USB host. As long as the device is not enumerated, it enters a minimum power consumption mode, where both LEDs are turned off.

5.4 INITIALIZATION

After powering up and enumeration (in USB mode), the device turns on its built-in transponder reader logic. The green LED is turned on permanently. Some RFID reader modules require a form of initialization, which is performed in this step. After successful initialization, the device sounds a short sequence, consisting of a lower tone followed by a higher tone.

5.5 NORMAL OPERATION

As soon as the reader module has completed initialization, it enters normal operation. During normal operation, the reader module searches for a transponder continuously.

5.6 DETECTION OF A TRANSPONDER

If a transponder is detected by the reader module, the following actions are performed:

• Send the ID to the host. By default, the USB device sends by emulating keystrokes of a keyboard. An RS-232 device sends the ASCII code of an ID.
• Sound a beep.
• Turn off the green LED.
• Blink the red LED for two seconds.
• Turn on the green LED.

Within the two-second timeout where the red LED is blinking, the transponder that was just recognized will not be accepted again. This prevents the reader module from sending identical IDs more than once to the host. If a different transponder is detected during the two-second timeout of the red LED, the sequence restarts immediately.

5.7 SUSPEND MODE

The USB version of the reader module supports the USB suspend mode. If the USB host signals suspend via the USB bus, the reader module turns off most of its power-consuming peripherals. During this operation mode, no transponder detection is possible, and all LEDs are turned off. Once the host resumes to normal operation mode, this is also signaled via the USB bus, and the reader module will resume to normal operation too.

6 COMPLIANCE STATEMENTS

6.1 EU

TWN3 LEGIC NFC M is in compliance with the EU directives and regulations as listed in the respective declaration of conformity.

6.2 RF EXPOSURE COMPLIANCE

RF exposure statement (mobile and fixed devices): This device complies with the RF exposure requirements for mobile and fixed devices. However, the device shall be used in such a manner that the potential for human contact during normal operation is minimized.

APPENDIX

A - TERMS AND ABBREVIATIONS

B – RELEVANT DOCUMENTATION

• ELATEC quick start guide
• Transponder Reader TWN3 Technical Manual
• TWN3 LEGIC NFC M data sheet
• TWN3 LEGIC NFC M integration manual