15Keyboard Manual
Track 2
The recording density of Track 2 is defined as 75 bits per inch.
The character configuration (encoding) is 4 bits plus 1 parity (odd)
bit, which yields 16 unique characters (10 numeric digits plus 6
symbolic characters :;<=>?).
The maximum information content, defined by the American Bankers
Association (ABA), is 40 characters arranged in the format below.
; PAN = CC DATE SC PVV DD ? LRC
Longitudinal Redundency Check - 1 check characterLRC
End Sentinel - 1 character - always “?” for all tracks?
Discretionary Data - additional characters to fill out
maximum record length
DD
PIN Verification Value - 0 to 5 digitsPVV
Service Code - 3 digits -
defines transaction requirements
SC
Expiration Date - 4 digits - YYMM formatDATE
Country Code - 3 digits (only for MasterCard)CC
Separator - 1 character - always “=” for Track 2=
Primary Account Number - up to 19 digitsPAN
Start Sentinel - 1 character - always “;” for Track 2;
Following is track 2 output and an explanation of the components.
;987654321012300=05121208967428?