LiftMaster IPAC IPAC Server Administrator's Manual - Page 165

IPAC Server Administrator's Manual Page 164 of 334 9. The XML Name field is a reference name used via the Datasync interface for creating cards of this format. Valid values only contain numbers, lower case letters, and _ (the underscore). 10. The Preset Value field is used for card formats that contain a "vendor bits" field or similar hardwired value that is present no matter what other fields exist on the card. This allows you to enter a template for values that will always be inserted into a card when encoded. This field is optional. 11. Bit Mask. This field is used to strip bits out of a card before processing. Masking is extremely dangerous and can result in seriously weakened security. The number of characters entered in this field must be the same as the bit length, and valid values include: . (period) to indicate a bit to strip out of the final card value, and X to indicate a bit to keep in the final card value. This field is optional. 12. Parity bit. The number of characters entered in each field must be the same as the bit length, and valid values include: . (period), to indicate bits ignored by this parity calculation, X to indicate a bit used by this parity calculation, and O and E to indicate the location of an Odd or Even parity bit. This field is optional. 13. Click Save. The Card Format page displays. 164