Magtek InSpec 9000 Manuel d'utilisateur télécharger pdf (Page 75)

APPENDIX C. CARD STANDARDS

In 1973, the first American National Standards Institute (ANSI) card standard was issued which

established a Reference Standard for the magnetic stripe's signal amplitude along with other card

requirements, all directed toward defining minimum parameters for card based information

interchange.

The ANSI committee responsible for Financial Transaction Card Interchange, in 1985, agreed to

accept the International Standards Organization (ISO) Card Interchange Standards as the U.S.

standards and to send an American delegation to ISO meetings to participate in future

standardization work.

In 1993, ISO completed a lengthy review of the current card standards and have released an

updated version of ISO 78xx series standards. Current card standards are listed in this appendix.

ISO PARAMETERS

ISO 7811-2, -4, and -5 parameters for cards that the InSpec 9000 Card Tester measures are as

follows:

TRACK 1

Parameter ISO Term New Card Limit Used Card Limit

Signal Amplitude* Ui 136% ≥ Ui ≥ 64% 136% ≥Ui ≥ 52%

Average Bit Density Ba ± 8% ± 8%

Flux Transition Spacing Variation Bin ± 8% ± 15%

Subinterval Spacing Variation Sin ± 10% ± 20%

Adjacent Bit Cell Variation Bin+1 ± 8% ± 15%

Adjacent Subinterval Variation Sin+1 ± 10% ± 30%

Start Sentinel Position 0.293" ± 0.020" (7.44 ± 0.50 mm)

per ISO 7811-4

* as a percent of Reference Signal Amplitude

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 89 90

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Magtek InSpec 9000 Manuel d'utilisateur Page 75