General Rules and Information
14
TM_ RegistrationUnits_201406_en.docx
3.4
Reading and Writing Properties
The typical maximum reading distance of a registration units is detailed in the corresponding chapters.
The following planning guidelines (PGL) will help you to select suitable media/compact reader
combinations:
PGL_Media_LEGIC
PGL_Media_MIFARE_ARIOS
PGL_Migration_RFID_Technology_Kabaexos9300
3.4.1
Basic Technical Relationships
The read and write distance fundamentally depends on the size of the registration unit's antenna, the
size of the medium, and the media technology
LEGIC prime, MIFARE classic and ISO15693:
Cards: The read and write distance tends to be slightly greater than the diameter of the registration
unit's antenna
Key fobs and smart keys: The read and write distance tends to be slightly smaller than the diameter
of the registration unit's antenna
LEGIC advant, MIFARE DESFire
The read and write distance is approx. 3/4 of the size of the figures given above.
Influence of a Metallic Environment and the Cable Length
A metallic environment reduces the reading and writing distance The read and write properties of
registration unit 90 04 are not impaired by metallic objects in its surroundings.
The shorter the coaxial cable, the better the reading and writing distance
The reading distances in the diagram for the
respective registration units RFID are calculated
average values from:
Metal - non-metal
Cable lengths 1 m to 30 m
(registration unit 90 02: 3 - 30 m)
See Chapter 3.5.4,page Seite 15
3.4.2
Reading and Writing Distances
Information on writing and reading distances can be found on the Kaba Portal Access Management
portal.kaba.biz in the Mechatronics/Kaba evolo/Kaba Media/Instructions tab.
