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2.5 RFID read/write module
An RFID (Radio-Frequency Identification) read / write module is integrated into the mobile devices as an
option. The radio frequency is 13.56 Mhz. The module identifies and defines passive transponders in
accordance with the standards ISO 14443 and ISO 15693. The transponders have a storage capacity of up
to 4 KB and are configured in different formats. The transponders belong to the families MIFARE
(ISO 14443), ICODE (ISO 15693) and EPC/UID. A special anti-collision method is applied which can identify
multiple transponders at the same time.
2.5.1 Transponder types
The individual transponders vary in terms of their layout, data configuration, storage capacity and range.
Type
ISO
Family
Memory
Encryption
Organisation
Ultra Light 14443
Mifare
64 bytes
None
16 pages per 4 bytes
Standard
1 KB
14443
Mifare
1 KB
2 keys per
sector
16 sectors per 64 bytes
Standard
4 KB
14443
Mifare
4 KB
2 keys per sector
32 sectors per 64 bytes
8 sectors per 256 bytes
SLI
15693
ICode
128 bytes
None
32 blocks per 4 bytes
EPC
EPC
ICode
17 bytes
None
17 blocks per 1 byte
UID
EPC
ICode
24 bytes
None
24 blocks per 1 byte
A Mifare transponder card has a range of up to 10 cm. An ICode transponder card has a range of up
to 1.5 m.
2.5.2 RFID read/write module: types of use
There are two ways to use the RFID read/write module integrated in the mobile device. Non-customised
applications use a data insert function in the keyboard buffer to insert RFID data directly next to the cursor
position. This is done by the Rfid2KeyCE application, described in detail in the following chapter. Keyboard
insertion currently functions with the Mifare Standard 1 KB transponder card. The serial number is inserted
for the ICode SLI transponder card.
Application developers can directly use the RFID-API. This is provided by ACD and supports all the
transponders listed in the table above. As the RFID read/write module cannot be operated from both
terminals at the same time, it is not possible to simultaneously use both operating modes.
2.5.3 Inserting RFID data (Rfid2KeyCE)
The RFID2KEYCE application is used to insert RFID data from a MIFARE transponder card with a storage
capacity of 1 kilobyte into the keyboard or into dialogue fields.
RFID2KEYCE can be used to insert data (serial numbers) from an ICode SLI transponder card with a
storage capacity of 128 bytes.
The RFID2KEYCE application is launched when the mobile device is booted and runs in the background.
Press the scanner key on the left or right of the mobile device to start reading barcodes. Data is written on a
transponder card on a window (flying window) that appears on the desktop.
Double-tap the RFID icon
in the taskbar to configure. More information on this is provided below.
