Common Features
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Keypad Input: Numeric keys for PIN entry, often with LED backlighting for visibility in low-light conditions.
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Access Methods: Usually supports multiple modes such as:
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PIN only
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RFID/proximity card only
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PIN + card for added security
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Configurations: Admin-defined access parameters like PIN length, number of valid users, lock/unlock durations, and entry modes (PIN, card, or both).
Technical & Performance Characteristics
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Power Supply: Often powered by 12 V DC.
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User Capacity: Varies by model — mid-tier devices manage hundreds to a few thousand users.
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Locking Control: Incorporates a relay or Wiegand output to operate electric strikes or magnetic locks.
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Security Measures: Features such as anti-tamper lockout after repeated invalid entries, adjustable door relay times, and audit/event logging.
Installation & Integration
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Mounting: Typically flush or surface mounted on walls or next to doors.
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Connectivity: Wiegand is a typical protocol for interfacing with access control panels; some models might offer Ethernet, RS-232, or even Wi-Fi.
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Programming: Direct setup via keypad is common; advanced models allow bulk configuration via software tools.
