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 Access Badge : logical structures and usage 


The system specifications that form CONACC (generic name that Qontinuum gives to all its products for Access Control, Time and Attendance and Shop Floor Data Capture) enable that the information contained in the Access Badges can have different logical structures for better adaptation to the needs of the Sites.
However, CPUs and Terminals can only handle a single logical structure concurrently. Exceptionally, and for reasons of homogeneity, the concept logical structures and usage is also used in the BIO Family.

Although complete information can be found in document TRM019-4, below find the main features of each logical structure and usage sorted by Families:

 

 

 

 
"fS=3" usage

These are the 'generic standard' formats which show different read-only Access Badge as they are delivered by their manufacturers, with the typical information contained in the Serial Number (which happens to be directly used as BUN).

Unlike "fS=2" usage (although can also be use for the 'generic standard' format), the selection of this usage enable the application program to supersede the "low level" parameterization that must be nedeed to find data in the Acces Badge.

To know more about this logical usage, must see the TPB033 document.

Family
Firmware version
INST1
BUN
User group
Expiration date
06.04.00 and >>
no
1 to 4294967295
no
no
08.00.00 and >>
no
1 to 4294967295
no
no

 

 

 
"fS=4" structure

These are the Qontinuum standard format for the Access Badge that allow for reading-writing, being nowadays the RFID 'MIFARE' tags and the RFID 'DESFire' tags.

To know more about this logical structure, must see the TPB031 document.

The "fS=4" structure (see the presentation slides) is what gives the most power by allowing ...

... a virtually unlimited number of users because the information for each user which is needed for physical access control lies in the "fS=4" structure (see section 2.2 of the TPB027 document)
... unattended data update in any CPU prior to the physical access, thus enables changing the user profile identifier inside the "fS=4" structure:
     ‘User_Group’ (affect the "when" of access)
     ‘User_Type’ (affect the “how" of access)
     ‘Pass_Levels’ (affect the "where" of access)
and facilitates the logic administration of such ID tags: unlock of anti Pass-Back control,
reset of exhausted PIN, etc. (see section 2.8 of the TPB027 document)
... an interactive anti Pass-Back control directly between the ID tag and the CPU without need for an external program (PC) to drive it, besides a control’s extinction by "temporary period exceeded" (see chapter 4 of the TPB027 document)
... biometric authentication through "hand profile", “fingerprint” (according to standard ISO/IEC 19794-2), “palm vein” and/or “weight” (to control the user in a floodgate), all of them based on the corresponding Template contained in the “fS=4” structure (see section 4.1 and 5.1 of the TPB036 document)
... a truly secret PIN defined and known only by the user and replaceable in its sole will and as often as it sees fit (see section 2.2.4 of the TPB036 document)
... different schemes of access permissions to isolate up to 16 different Operational Centers (buildings, factories, etc..) within the same Site
... full guarantee of “non cloning” by using a Qontinuum’s algorithm that neutralizes the key breakage by "brute force".

Family
Firmware version
INST1
BUN
User group
Expiration date
04.00.00 and >>
yes
1 to 2147483647
yes
DDMMYYYY
08.00.00 and >>
yes
1 to 2147483647
yes
DDMMYYYY

 

 

 

 

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