Multi-Door Biometric Network Access Controller

The Central Nervous System of Distributed Biometric Access Management

In an enterprise-grade security architecture, edge terminals (such as facial recognition nodes, fingerprint pads, or palm scanners) shouldn't handle the physical locking relays directly. If a standalone biometric reader on an exterior wall houses the physical lock-release wires inside its outer frame, an intruder could tear the device down, short-circuit the wiring, and bypass the door. A Biometric Network Controller solves this security vulnerability by moving the brains of the operation into a secure, centralized location—such as an IT server room, electrical riser room, or security back-office locker.

The network controller functions as the centralized processing hub for the building’s security loop. While edge biometric readers capture the biological scan, the raw data or template token is piped straight back to this central controller over an encrypted data loop.

The controller evaluates access permissions against its local non-volatile database within milliseconds, firing secure, isolated internal relays inside the locked room to drop power to electromagnetic locks or actuate door strikes. Running a dedicated real-time operating system (RTOS), it handles complex access interlocks, monitors auxiliary fire alarm input overrides, and continuously reports real-time system events back to the primary security server.

Strategic Architecture Profiles

Centralized controllers are typically specified based on the density of the physical layout and door counts per zone:

1. 2-Door / 4-Door Biometric Controllers

• High-Privacy Localized Zones: Outfitted with 4 onboard reader inputs and a corresponding matrix of lock relays, door sensor monitors, and exit button interfaces.

• Best For: Small corporate office branches, localized IT server rooms, and executive suites.

2. 8-Door / High-Density Master Multi-Panels

• Scalable Industrial Infrastructures: Engineered with high-capacity processing zones and expansion board slots to drive massive clusters of locks and turnstiles from a single enclosure.

• Best For: Large manufacturing facility corridors, multi-floor hospital wards, and high-throughput airport terminals.

Key Performance Features

• Local Offline Database Autonomy: Retains up to 100,000 distinct user profiles and 200,000 localized non-volatile transaction event logs directly on the panel. If the primary corporate IT network drops, the panel keeps managing security with zero disruption.

• Native Encrypted OSDP V2 Interfaces: Supports Open Supervised Device Protocol (OSDP) over RS-485, establishing a secure, fully encrypted bidirectional data channel with edge biometric terminals to prevent wire-tapping or card-cloning exploits.

• Wiegand Protocol Fallback Support: Outfitted with standard Wiegand bit-stream configuration tools, ensuring drop-in compatibility with legacy RFID smartcard readers and proximity keypads.

• Automated Hardwired Fire Alarm Interlock: Features a dedicated, supervised Fire Alarm Interlock (FAI) input. Upon receiving a dry-contact emergency signal from the main Fire Alarm Control Panel (FACP), the controller automatically cuts power to all magnetic locks to facilitate code-compliant safe building evacuation.

• Advanced Access Logic Control: Natively processes sophisticated operational tracking profiles, including global Anti-Passback (preventing users from passing badges backward), multi-door interlocking (mantrap/cleanroom airlocks), and multi-user authentication rules.

Ideal Infrastructure Applications

• Multi-Floor Corporate Headquarter Risers: Mounting centralized panel cabinets inside IT closets on every floor to coordinate edge biometric turnstiles and office entryways.

• Banking Centers & Vault Systems: Driving secure interlocking mantraps where the inner door is mechanically locked until the outer door is verified completely closed.

• High-Volume Factory Shift Gates: Managing high-speed template distribution to multiple edge terminals to sync real-time shift rosters and time-attendance updates.

Technical Performance MatrixEngineering Metric ParameterMaster 4-Door Biometric ControllerStandard 2-Door Access ControllerControlled Doors SupportedUp to 4 Doors (Unidirectional / Bidirectional)Up to 2 Doors MaxBiometric/Reader Input Ports4 $\times$ OSDP / 4 $\times$ Wiegand Interfaces2 $\times$ Wiegand Interface Links OnlyLocal User Template CapacityUp to 100,000 Profiles / 30,000 BiometricsUp to 20,000 PIN/Card ProfilesOffline Transaction Buffer200,000 Logs (Non-volatile Flash)50,000 Logs (Non-volatile Flash)Network Interfaces OnboardTCP/IP Ethernet (RJ-45 10/100M), RS-485TCP/IP Ethernet PortOutput Relay Configuration4 $\times$ Lock Relays, 4 $\times$ Auxiliary Relays2 $\times$ Lock Relays Form CRelay Contact Rated Capacity5.0A @ 30V DC / 5.0A @ 125V AC2.0A @ 30V DCFire Alarm Interlock (FAI)Dedicated Supervised Input NodeOptional Aux Relay ProgrammingEnclosure Shield ProfileHeavy-Duty Lockable 16-Gauge Steel CabinetStandard Plastic Box HousingCompliance CertificationsUL 294 Listed (Access Control) / CE / FCCCE / FCC ApprovedStandard Procurement Package Components

• Intelligent Multi-Door Biometric Network Access Controller Motherboard

• Heavy-Duty 16-Gauge Lockable Stamped-Steel Enclosure Cabinet Shield

• Integrated AC-to-DC Smart Power Supply Unit (12V/24V DC Selectable) with Battery Charger

• Cabinet Enclosure Cam-Lock Keys (Set of 2) and EOL Resistor Component Pack

• Factory System Programming Pin-Out Schematic Diagram and Installation Submittal Guide

• Required System Add-ons: Sealed Lead-Acid (SLA) 12V Backup Storage Batteries, Downstream Multi-Door Relay Expansion Boards, and Central Security Server Enterprise Access Software Licenses (Sold Separately based on project network BOQ)