Key benefits Flexible integration: Supports Master Card function and connects to a wide range of existing access systems, reducing retrofit time and hardware changes. Broad compatibility: Works with keyboard-style readers using 4-bit, 8-bit (ASCII), or 10-bit formats and with readers that accept Wiegand 26–37 bit input, so it fits most common access-control infrastructures. Multiple access control options: Configure single-card entry, card-or-PIN, card-with-PIN, or multiple cards/PINs per user for layered security and operational flexibility. Reliable performance: Designed to operate smoothly with varied reader types to minimize installation complexity and ensure consistent access decisions. Features and functions Master Card support: Allows an administrator/master card to manage or override regular credentials where required. Virtual keyboard compatibility: Can be virtually connected to any keyboard reader supporting 4-bit, 8-bit (ASCII), or 10-bit protocols for straightforward integration with keyboard-emulating devices. Wiegand compatibility: Accepts Wiegand 26–37 bit input to interface directly with most Wiegand-based readers and controllers. Multi-access modes: Select from card-only, card-or-PIN, card-with-PIN, and multiple card/PIN combinations to match security policy and user needs. Why customers need this product Simplifies upgrades: Use existing readers and controllers without replacing infrastructure, saving time and cost. Adapts to varied security policies: Offer simple to advanced authentication methods depending on the site and user group. Reduces installation risk: Broad protocol support lowers compatibility issues and accelerates commissioning. Practical applications 1. Office buildings: Integrate with existing badge readers to add Master Card administration and flexible entry modes for employees, contractors, and visitors. 2. Multi-tenant or residential properties: Use multiple card and PIN options to assign different access levels to residents, cleaners, and maintenance staff without changing hardware. 3. Industrial or logistics sites: Connect to Wiegand or keyboard-style terminals to maintain secure gates and doors while supporting different authentication workflows for shift workers and supervisors. Technical compatibility summary Master Card function supported Virtual keyboard connection: 4-bit, 8-bit (ASCII), 10-bit Wiegand input compatibility: 26–37 bit Access modes: card; card or PIN; card with PIN; multiple cards/PINs If you need further details about installation best practices or configuration examples for your specific reader model, provide the reader type and we can outline the recommended setup.