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HID Global Corporation VERICLASS Manuale Utente

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veriCLASS Hardware Specification VP3500 Reader Board, 3500-906 
 
 
5.2.2 
ISO/IEC 14443 Type B Waveforms 
The waveforms were measured in accordance to ISO/IEC10373-6 (16.5MHz resonance frequency 
of reference PICC). 
Table 8: ISO/IEC 14443 Type B Waveforms 
Distance 0mm @ 106kbps 
Distance 7.5mm @ 106kbps 
m [%] 
11.01 
m [%] 
10.68 
tr [ns] 
389 
tr [ns] 
379 
tf [ns] 
384 
tf [ns] 
392 
Os [%] 
3.28 
Os [%] 
4.34 
Us [%] 
3.14 
Us [%] 
4.18 
 
Distance 12mm @ 106kbps 
Distance 20mm @ 106kbps 
m [%] 
10.55 
m [%] 
9.70 
tr [ns] 
395 
tr [ns] 
386 
tf [ns] 
427 
tf [ns] 
423 
Os [%] 
4.32 
Os [%] 
4.11 
Us [%] 
4.11 
Us [%] 
4.05 
 
Note: Measured with modulation conductance setting of 33Hex (ISO/IEC 14443 Type B register #2). 
 
Page 18 of 28 
 
March 2011 
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