Gasboy CFN III Mgnr's Mnl V3.4 - Manual (Page 116)

Proprietary Cards
Page 100 MDE-4315 CFN Series CFN III Manager’s Manual for Windows NT · August 2004
Lockouts
There are two types of lockout available for the CFN system, bit-mapped
lockout and limited lockout. In addition, either type of lockout may be set up as
a positive or negative system. The type of lockout used is determined by the Site
Controller configuration.
Bit-mapped lockout is used with proprietary cards. Limited lockout can be used
with proprietary cards and bank cards.
A typical format for the customer information field of privately issued cards is
ccccccvvvveeee where
• cccccc is the card number (a six-digit number can lock out up to 999,999
cards; a five-digit number can lock out up to 99,999 cards)
• vvvv is the vehicle number
• eeee is the employee number, and
• ccccccvvvveeee is the account number. Account number here refers to the
entire customer-information field of the proprietary card. This field is
usually divided into subfields that may include a card number, vehicle
number, employee number, customer account number, or other fields.
Although it may seem confusing to call the entire field the account number,
when it can contain a subfield called account number, this terminology
conforms with the track II standard as defined by the American Bankers
Association (cards have three tracks and CFN card readers read track II).
With bit-mapped lockout, only the card number (six digits in this example) is
used for lockout. With limited lockout, the entire customer information field (14
digits in this example) must be entered for lockout.
An offset can now be set in SYS_PAR to determine what card data is used. See
MDE-4316 CFN III Configuration Manual for more information.
Bit-mapped Lockout
Bit-mapped lockout uses less memory than limited lockout, but is less flexible.
In a system that uses bit-mapped lockout, the card number is the configurable
offset group of digits (4-8) of the section of the card that identifies the customer.
The number of digits used is configured in SYS_PAR.
If your site has bit-mapped lockout, you do not need to type leading zeros when
you enter a card number. For example, to lock out card number 0056, just type
56.