Issue
Valid cards occasionally fail to read when being badged at Card Readers enabled for both 125KHz and 13.56MHz technology.
Product Line
EcoStruxure Security Expert
Environment
- Security Expert
- Multi-Technology Card Readers (SX-DRD-SB, SX-DRK-SB, SX-DRK-SB-BT, SX-DRK-SW-BT, SX-DRD-XB, SX-DRK-XB, SX-DRK-XB-BT, SX-DRK-XW-BT )
Cause
This issue arises when Dual Technology readers and Dual Technology cards are used together on the same site. When any card is presented to the reader, it activates both the 125KHz and 13.56MHz card technologies. While this is usually fine for single-technology cards, Dual Technology cards can result in missed reads at the controller as both technologies may respond simultaneously.
Resolution
- Dual Technology readers are ideal for sites with both older 125KHz cards and newer 13.56MHz cards.
- Dual Technology cards are ideal for sites with both older 125KHz readers and newer 13.56MHz readers.
- To prevent issues, avoid using Dual Technology cards on Dual Technology readers. Disable one technology on the readers or revert to single-technology cards.
