Gasboy CFN Series NBS - Manual (Page 31)

MDE-4390F Gasboy CFN Series NBS (GL3) Credit and Debit Card Network V 1.3.0.0 · November 2008 Page 27
Understanding Fuel and Card Limits Using NBS
Cut-off Limit
The cut-off limit can be viewed by typing “print pump”. The field is called “limit.” The cut-off
limit is loaded by default from the pump fill limit. If the pump table is reconstructed for any
reason, the cut-off will be reloaded from pump fill. Typing “load cutoff” and loading in the
new parameters can change the cut-off field. The entered value must be preceded by a dollar
symbol ($). If the cut-off is changed, the pump fill should be changed as well, unless the
change is temporary. If a table reconstruct takes place, the cut-off limits will be overwritten by
the pump fill limits. The cut-off limit field is used by the system for calculating the cut-off.
The pump fill limit is strictly for resetting the defaults in the cut-off field if there is a table
reconstruct.
Card Parameter Table
Depending on the pre-auth mode (NBS -E) listed under “Pre-auth Mode” on page 17 , the Card
Parameter Table may be applied against all cards or very few cards.
• For Value-based mode, the Card Parameter Table is used for all cards.
• For PS2000 mode, the Card Parameter Table is used for non-standard bank cards
• For HEBA mode, the Card Parameter Table is used only for Gift, Debit and Specialty
cards.
Max Authorized Card Amount
The Maximum Authorized Card Amount is found in NBS -E. Refer to page 18 . Just as the
pump limit is the absolute limit for fuel, this field is the absolute monetary limit allowed for
any card at the island. This field can be used to reduce the dollar amount authorized by the
bank network. In most cases, this field is set to the highest limit that a card can receive from
the bank network host system. For example, if the bank network host authorized a card for
$250 and the max-authorized amount is set to $200, the patron would not be able to receive
more than $200 of fuel.
Outside Authorizations
All of the above limits apply to Islander or MPD. An outside sale can be mixed with other
product items, such as car wash or other services. When approved, these types of services will
be taken into account and the total fuel allowed will be reduced to meet the authorized limits.
Inside Sales at the POS
Inside sales are not required to meet PS2000 restrictions or other outside sale requirements.
Inside pre-authorized fuel sales can be mixed with purchased merchandise, just as post-pay
sales can be mixed. The sale amount is restricted by the amount of fuel allowed to pump, set
by pump max limit.
If an inside pre-auth sale is set for “fill”, the fill value will be obtained from the Card
Parameter Table for all cards, except the specialized cards that obtain their limits from club
format limitations. Else, the value entered for the pre-auth amount will be sent to the host for
authorization.
Note: Specialized cards will obtain their “fill” value from the Card Parameter Table when
the HEBA pre-auth mode is utilized.