ELATEC TWN4 Slim Legic RFID Reader User Manual

: June 6, 2024
: ELATEC

Table of Contents

ELASTIC TWN4 Slim Legic RFID Reader
Introduction
Operating mode
List of Antennas
Compliance statements
Service Address
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ELASTIC TWN4 Slim Legic RFID Reader

Introduction

The TWN4 Slim LEGIC is ELATEC’s smallest compact & flat RFID reader – it’s smaller than an ID-1 card. TWN4 Slim supports a huge range of LF and HF technologies (125 kHz and 13.56 MHz). With the support of NFC and Bluetooth Low Energy the reader supports mobile use cases for data communication and authentication. It can be operated as a stand-alone unit and connected using a standard cable with a micro USB plug to PCs and other devices with USB interface. TWN4 Slim LEGIC is perfectly suited to embed it into machines and devices, and especially MFP printers. By using clip-on covers, TWN4 Slim LEGIC is mountable into printer chassis cavities and allow a flat and even surface – invisible integration.

Operating mode

In order to start operating a TWN4 Slim LEGIC, it simply has to be connected directly to a host device.

Power Supply
Requirement for the external power supply unit:

Limited Power Source according to IEC 60950-1 or
PS2 classified IEC 62368-1
Short-circuit current < 8A

Enumeration
Once the device has been powered up, it is waiting for the completion of the enumeration by the USB host. As long as the device is not enumerated, it is entering a minimum power consumption mode.

Initialization
After powering up and enumeration the device is turning on the built-in transponder-reader logic. The green LED is turned on permanently. Some transponder-reader modules need some kind of initialization, which is performed in this step. After successful initialization, the device sounds a short sequence, which consists of a lower tone followed by a higher tone.

Normal Operation
As soon as the device has completed the initialization, it is entering normal operation. During normal operation the device is searching for a transponder continuously.

Detection of a Transponder
If a transponder is detected by the reader, the following actions are performed

Send the ID to the host. By default, the USB device sends by emulating keystrokes of a keyboard. A RS232 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 seconds timeout, where the red LED is blinking, the transponder, which just has been recognized will not be accepted again. This prevents the reader from sending identical IDs more than one time to the host.
If during the two seconds timeout of the red LED a different transponder is detected, the complete sequence restarts immediately.

Suspend Mode
Once the host is resuming to normal operation mode, this is also signaled via the USB bus. Therefore, the transponder reader will resume to normal operation, too.

List of Antennas

Compliance statements

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Caution!
The Federal Communications Commission (FCC) warns the users that changes or modifications to the unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
FCC §15.105 (b):
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reason-able protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be deter-mined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

The product is FCC Rule Part 15B SDoC conform.

Canada Compliance
This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to the following two conditions:

This device may not cause interference; and
This device must accept any interference, including interference that may cause undesired operation of the device.

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.
RF exposure statement portable devices) This device complies with the RF exposure SAR test exclusion requirements for portable devices, if a minimum separation distance 20 cm is kept. However, the device shall be used in such a manner that the potential for human contact during normal operation is minimized.