RFID Access Control Panel

What to Check When Sourcing

Access control is a long-lived, safety-critical system — a failure that locks people out of a building is a serious operational problem — and a core component of any smart building or security infrastructure. Our sourcing service helps you identify manufacturers with proven reliability records. Specify for reliability, not just price.

Card technology. EM4100 (125kHz) is a legacy, clone-vulnerable technology — anyone with a $30 RFID cloner can copy an EM4100 card in seconds. For any serious application, specify Mifare Classic, Mifare DESFire EV2, or LEGIC Advant. DESFire EV2 is the current recommended standard for secure access.

Relay rating and fail-safe vs. fail-secure. Specify whether the door lock should fail open (fail-safe — door unlocks on power loss) or fail-locked (fail-secure — door remains locked). This is a fire safety consideration in many jurisdictions and must match the door hardware. Verify the relay current rating matches your electric strike or magnetic lock load.

Wiegand encryption. Standard Wiegand transmits card data in plaintext on the wire — it can be intercepted and replayed. For high-security applications, specify OSDP (Open Supervised Device Protocol) version 2, which provides encrypted, bidirectional communication. See our industrial IoT sourcing guide for more on specifying secure hardware for commercial and industrial installations.

Common Issues

Firmware language limitations — Some Chinese access control panels have management software only in Chinese, with no English SDK. Verify English firmware availability and API documentation before ordering. Our quality inspection service can verify firmware language, relay rating, and card technology compliance against your spec before production ships.

Cable run length — Wiegand has a practical limit of approximately 150m. For longer runs, specify RS-485 or TCP/IP-based panels.