Citizen Systems cmp-20 Guida Utente

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3.9  Reading Magnetic Stripe
Optional
Insert and swipe the card in the direction of the arrow as shown in the picture.
Card Standard
ISO 7811/2
Dual Track
1, 2 Track or 2 ,3 Track
Card Swipe Speed 
10cm ~ 15cm/sec (4 ~ 6 inch/sec)
Magnetic Head Life
300,000 passes (minimum)