Cards and Proximity
NFC Tags and NTAG Access Control
NFC tags such as NTAG stickers, tickets and wristbands are the cheapest way to issue a short-lived credential. xSERVA reads them as a UID credential bound to a holder and a time window, so you can badge a crowd in minutes.
Frequency 13.56 MHzStandard NFC Forum Type 2, ISO 14443 Type ARange 0 to 4 cmSecurity Basic
Technical Facts
What You Need to Know
- Frequency
- 13.56 MHz, NFC Forum Type 2
- Variants
- NTAG and MIFARE Ultralight family tags, stickers, tickets and wristbands
- Typical use
- Events, open days, contractors, short-term hire
- Security level
- Basic. Best where convenience outranks assurance
- On xSERVA
- Read by UltraPASS-Door as a UID credential with a start and end time
Strengths and Limits
Where It Fits
Strengths
- Very low cost per credential
- Wristbands and stickers suit crowds
- Time-boxed on the console
Limits
- UID-based, so easy to copy
- Not for sensitive doors
- Single-use items need a collection plan
Our Advice
How to Use It Well
Use for events and temporary labour, and limit them to specific doors and hours. Revoke from the console at any time.
Other Card Technologies
Questions
NFC Tags and NTAG Questions
Can NTAG stickers be used as passes?
Yes. xSERVA reads NTAG as a UID credential and bounds it by a start and end time on the console.
Are NFC tags secure?
They are basic credentials. Use them where convenience outranks assurance, and keep them away from sensitive doors.
Can my phone act as an NFC card on xSERVA?
Phone credentials on xSERVA use Bluetooth and dynamic QR today. Phone NFC wallet keys are not listed as available, so ask us if you need them.