ISO 7811-4 PDF

ANSI/ISO/IEC Identification Cards – Recording Technique – Part 4: Location of Read-Only Magnetic Tracks – Tracks 1 and 2. ISO/IEC Identification cards — Recording technique is a set of nine ( to ) standards describing the recording technique on identification cards. Find the most up-to-date version of ANSI/ISO /4 at Engineering

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Track 3, originally an alternate numeric-only track, is no longer used in the Banking and Credit Card format.

Magnetic Strip Encoding – Abacus 21

Tracks 1 and 3 read alphanumeric data at bpi, while track 2 reads numeric data only at 75 bpi. Recording Density bits per inch. Track 1 contains the customer’s name in addition to the account number and expiration date recorded at higher density.

Information Content including control characters. Character Configuration including parity bit. ISO Specification – No longer in use. Readers with both track 1 and 2 are recommended for acquiring Credit Card data since redundancy permits the authorization process to compare account information on both tracks and also fallback to the lower density track data if the reader is unable to decode track 1 due to damaged track data on the card.


Below will be found a brief synopsis of some Magnetic Strip Encoding Standards.

Standards Council of Canada

Note from the table below that Magnetic Stripe Readers used for acquiring Credit Card data need only to read tracks 1 or 2 from the card. In order to encode the additional alpha-numeric information is on the Driver’s License, the specification was revised to permit alpha-numeric information to 7811–4 encoded on track 3.

ISO defines the physical characteristics of the card. Full copies of these standards can be pruchased from www. The data is read least significant bit first.

As a general rule, data on Magnetic Cards conforms to the encoding format for financial transaction cards ISO This table is only an overview of what data fields are contained on the three tracks of a magnetically coded driver’s license. The information below is isoo from these standards. Other custom utilizations are also possible and appropriate. Lower-density data recorded on track 2 contains only the account number and expiration date.


Track 1 and 2 of the Driver’s License Magnetic Stripe format conform to the original formatting standards used by the Banking and Credit Card industry. Physical Plastic Card 2. Call Abacus 21 for further details.

ISO/IEC 7811

Magnetic Strip Encoding Standards. In the early years of Magnetic Stripe technology, data was recorded at lower density to increase read-reliability. Site Search 781-4 Events. Account Number Expiration Date.

Low density data is still recorded on track 2 for compatibility with older-technology readers and provide redundancy when reading with newer-technology readers. Note also the redundancy:. Physical Dimensions of Cards: Account Number Name Expiration Date. While the information contained on each track may be only slightly different, the field order, field lengths, and method of field separation and termination differs significantly.