Gasboy 1000 Series Technical Reference Manual - Manual (Page 101)

FleetKey Systems
03/07/03 4-9
Maintenance x Date
Description Maintenance x Date is a six-digit numeric field (YYMMDD). It indicates the date
on which maintenance type A, B, or C was last performed. It is used only with the
Maintenance Option. In a dual key system, this field is usually on the vehicle key.
This field must be encoded with the last maintenance date or a starting date from
which maintenance will be calculated. If zeros are encoded, the system assumes
that maintenance will not be used.
PIN
Description PIN is a four-digit numeric field. It protects the system from unauthorized use
should a key be lost or stolen. The system operator assigns PINs to keyholders.
The PIN is stored on the key in an encrypted form so that it is not readable
without being decrypted. When using dual keys, the PIN must be encoded on the
key which has the check digit configured for PIN. Field separators take the place
of digits on the other key. If PIN is encoded on both keys, it must be the same on
both.
CRC
Description Four digit ASCII field (hexadecimal). The CRC is calculated based on all of the
preceding data on the key. It is used to ensure the integrity of key data. You do
not enter a CRC at the keypad, it will be encoded automatically.