Implement "Card ID Pass-through" for unregistered users. The controller must receive the card's binary/decimal data via OSDP to handle the decision-making process at the server level, regardless of the local authentication result.


Implementation Specifications

  • Scenario: An unregistered card is presented to the device, triggering an Access Denied event.

  • Current Default Behavior: The device typically transmits an OSDP exception code or a generic "Access Denied" message to the ACU (Access Control Unit).

  • Requested Custom Action: The device must transmit the actual Card Value (Card Number) through the OSDP protocol instead of an exception code.


BioStar 2 OSDP Configuration setup

  • Integration Goal: Ensure the custom firmware allows the device to operate as a "Transparent Reader" for unregistered cards.

  • Verification Item: We need to confirm how this feature will be represented or toggled within the BioStar 2 OSDP settings (e.g., specific mode selection or attribute configuration).