card access Sourcing Overview

User Capacity Alignment A common mistake is underestimating the number of users or cards needed; selecting between 1,600 to 10,000 users or cards plus additional passwords should be based on your current and projected access demands to avoid costly upgrades.

Voltage Compatibility Negotiate power specifications carefully, ensuring the chosen system supports your facility’s available voltage, such as +24 VDC ± 5% or 9-18 V DC, to prevent integration issues and additional electrical modifications.

Material Durability and Security In practice, most suppliers offer cards made from PVC, ABS, or CPU cards, but opting for higher-grade materials like CPU cards can enhance security and longevity, especially in high-traffic environments.

Reading Distance Trade-offs The trade-off between short-range (1-3 cm) and longer-range (up to 5 m) card readers depends on your security needs and gate types; longer distances offer convenience but may increase risk of unauthorized access if not properly encrypted.