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

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

Account Number Expiration Date. 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.


Physical 78111-4 Card 2.

Note also the redundancy:. In the early years of Magnetic Stripe technology, data was recorded at lower density to increase read-reliability.

ISO/IEC – Wikipedia

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. Full copies of these standards can be pruchased from www. Low density data is still recorded on track 2 for compatibility with older-technology readers and provide redundancy when reading with newer-technology readers.

Track 3, originally an alternate numeric-only track, is no longer used in the Banking and Credit Card format. Information Content including control characters. Other custom utilizations are also possible and appropriate. This table is only an overview of what data fields are contained on the three tracks of a magnetically coded driver’s license.

The data is read least significant bit first. Magnetic Oso Encoding Standards. Call Abacus 21 for further details. Recording Density bits per inch. ISO defines the physical characteristics of the card. The information below is abstracted from these standards. Physical Dimensions of Cards: As a general rule, data on Magnetic Cards conforms to the encoding format for financial transaction cards ISO 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.


Account Number Name Expiration Date. ISO Specification – No longer in use. Site Search Upcoming Events.

ISO/IEC 7811-4:1995

In order to encode the additional alpha-numeric information required on the Driver’s License, the specification was revised to permit alpha-numeric information to be encoded on track 3. Jso Configuration including parity bit. 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.