Printronix PrintNet Enterprise - Manual (Page 270)

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Chapter 6 Mapping
Figure 239. Pin_Part_3 Mapping Table
The Pin_Part_3 mapping table starts with the same seven entries. The value
is added to new_pin but this time we do not multiply the value by 10; we now
have the complete PIN code. The message displayed depends on the result
of the comparison between the new_pin data field and the pin_number data
field. If the two values are the same, the message pin_accepted will display
and GPIO will be disabled, allowing the printer to function as a normal printer.
Configuration changes can be made and saved. A power cycle is required to
reactivate GPIO and its printer protection function.
If the two numbers do not match the pin_incorrect message displays on the
LCD. The printer will beep three times and the pin error count increments.
This value is tested to see if this was the third trial. If not, the user is given
another try.