Can DoorTek supply add-on card orders for the old Xetron XE-1 wiegand swip card type? Yes we can. They are still being made but are going up in price. They will likely be phased out at some point, but are still available now. Wiegand style readers can be replaced with proximity readers with identical output type. What does this mean? It means you can up grade the human interface, the readers and cards, without replacing your electronics. Call us for more information.