Elatec TWN4F9 User Manual

RFID Reader

TWN4 Slim

Manual

Rev. 2.0

Elatec GmbH

1. Introduction

The TWN4 Slim 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 is perfectly suited to embed
it into machines and devices, and especially MFP printers. By using clip-on
covers, TWN4 Slim is mountable into printer chassis cavities and allow a
flat and even surface – invisible integration.

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Elatec GmbH

2. Getting Started

2.1 Operating mode

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

2.2 Power Supply

Requirement for the external power supply unit:

- Limited Power Source according to IEC60950-1 or Limited Power
Source according to IEC60950-1 or

- PS2 classified IEC62368-1

- Short-circuit current < 8A

2.3 Enumeration

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

2.4 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.

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