P1086708-001 ZXP Series 9 Card Printer Service Manual 421
Magnetic Card Encoder
Magnetic Encoding Type
Magnetic Encoding Type
ISO (Default)
The encoder reads and writes standard ISO track data formats in standard ISO track locations. The
following shows the three standard ISO tracks.
Track 1 -- 210 BPI
Track 2 -- 75 BPI
Track 3 -- 210 BPI
Each track can be encoded and decoded with ASCII characters in the standard default ISO data
formats:
Track
Density (bits
per inch)
Bits per
character
Character
parity
Length
(characters)
LRC parity Start sentinel End sentinel
Start sentinel
offset inches
(mm)
1 210 7 Odd 76 Even % ? 0.293” (7.4)
2 75 5 Odd 37 Even ; ? 0.293” (7.4)
3 210 5 Odd 104 Even ; ? 0.293” (7.4)
The magnetic encoder can read or encode up to 3 tracks of digital information onto CR-80 cards
incorporating a HiCo or LoCo magnetic stripe in the ISO 7811 format.
Encoding for the three tracks uses the ISO 7811 format.
y Track 1 uses 210 BPI (bits per inch) encoding in the International Air Transport Association
(IATA) format of 79 alphanumeric characters, at 7 bits per character.
y Track 2 uses 75 BPI encoding to store 40 numeric characters at 5 bits per character in
American Banking Association (ABA) format.
y Track 3 uses 210 BPI encoding of 107 numeric characters at 5 bits per character in THRIFT
format.
The ISO data formats include a preamble (all zeros), a start character, data (7-bit or 5-bit as
speciîšżed by ISO), a stop character, and a longitudinal redundancy check (LRC) character. The 7-bit
data format has 6 bits of encoded data and a parity bit. The 5-bit data format has 4 bits of encoded
data and a parity bit.
The ISO data formats include a data îšżeld separator (or delimiter) that allows parsing of the encoded
track data. An example of separate data îšżelds would be the ABA data format (Track 2) that includes
a Primary Account Number (PAN) îšżeld and an account information îšżeld (for expiration date, country
code, etc.).
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