Gasboy CFN III Mgnr's Mnl V3.4 - Manual (Page 122)

Proprietary Cards How to Lock Out and Unlock Cards
Page 106 MDE-4315 CFN Series CFN III Manager’s Manual for Windows NT · August 2004
Since the authorization code is one or two digits, there are either 9 or 99
different codes available. The 9 or 99 authorization codes, in turn, can each
contain up to 99 fuel product codes and merchandise codes:
• The fuel product codes are positive codes: the card holder can purchase only
those fuels whose product codes are contained in the authorization code on
his or her card.
• Merchandise codes, which are codes for specific products and for categories
of products, are negative codes: the card holder cannot purchase
merchandise whose product code or category code is contained in the
authorization code on his or her card; the card holder can purchase only
merchandise whose code is not included in the authorization code.
Put another way, you can regard fuel product codes as unrestricted authorization
codes and merchandise codes as restricted authorization codes.
To specify the types of products for which each privately issued card is
authorized:
• Determine the products you want to authorize for each card.
• Decide on a unique authorization code (one or two digits long) for each
group of products you want authorized for a single card.
• Encode the authorization codes on the cards, one to each card.
• Assign the fuel and merchandise product codes to the corresponding
authorization codes. Products and/or categories authorized by a code are
assigned with the LOAD AUTHORIZATION command.
Each card is then authorized to pump only those fuel products assigned to the
authorization code and to purchase only those merchandise products not
assigned to the authorization code on the card.
You will probably want to set up one authorization code for each individual fuel
and one for all fuels, in addition to the combinations you require.
How to Assign Product Codes to Authorization Codes
Use the command LOAD AUTHORIZATION or LO A to define your
authorization codes and assign one or more fuel and merchandise product codes
to each authorization code. (Fuel and merchandise product codes-which you
must set up first, before assigning product codes to authorization codes-were
assigned with the LOAD PRODUCT command.)
In entering product codes with LOAD AUTHORIZATION, plain numbers
indicate specific fuel or merchandise products, and numbers preceded by an
uppercase or lower case c (for example, C3 or c3) indicate merchandise
categories.