Valid cards are occasionally failing to read when being badged at Smart Card Readers enabled for both 125KHz and 13.56MHz technology
- Security Expert
This can specifically occur when Dual Technology readers and Dual Technology cards are both being used together on the same site. When presenting any card to the reader, the reader broadcasts to activate both (125KHz and 13.56MHz) card technologies, which is usually fine when the card in question is single technology (125KHz or 13.56MHz). However, with Dual Technology cards, either or both technologies can respond at the same time, depending on read range and how a card is being presented, resulting in missed reads at the controller.
Dual Technology readers are perfect for sites with both older 125KHz cards and newer 13.56MHz cards in circulation.
Dual Technology cards are perfect for sites with both older 125KHz readers and newer 13.56MHz readers installed.
Dual Technology cards on Dual Technology readers need to be prevented. Either by disabling one technology on the readers or reverting to single technology cards.