eSSL Access Control – C3-400 Plus 4-Door Controller
High-Performance IP Access Controller for 4 Doors with 100,000 Card Capacity | Linux OS
Enterprise-Grade Control for Your eSSL Access Control System
The eSSL C3-400 Plus is the high-performance core of an advanced eSSL access control system, designed to secure up to four doors simultaneously. Built on a robust Linux operating system, this next-generation controller centralizes user credentials, access schedules, and event logs, delivering enterprise-level security management. It's ideal for corporate offices, factories, educational campuses, and large commercial facilities requiring reliable, scalable, and centralized access control.
Core Capabilities of the eSSL C3-400 Plus Access Control System
✓ Linux OS for Stability & Security – Built on a robust Linux operating system, ensuring stable, secure, and continuous access control operations with enhanced protection against vulnerabilities.
✓ 4-Door & 12-Reader Support – Manages four doors with up to 12 readers (8 RS-485 + 4 Wiegand), allowing bidirectional access and flexible authentication methods including RFID cards, dynamic QR codes, and passwords.
✓ High Capacity – 100,000 Users & 500,000 Logs – Industry-leading capacity for medium to large enterprises with complete audit trails for compliance. Default card capacity: 30,000 (expandable to 100,000 with license).
✓ TCP/IP & RS-485 with Advanced Encryption – Seamless network integration with AES 128-bit encryption for secure controller-to-reader communication, plus HTTPS/TLS 1.2 for server-to-client security.
✓ Advanced Security Features – Anti-passback, interlock, multi-card opening, linkage, 256 time zones, 256 access levels, holidays, global anti-passback, global interlock, and remote door control.
✓ 12 Inputs & 8 Outputs (Expandable) – Built-in I/O: 4 exit buttons, 4 door sensors, 4 AUX inputs; 4 lock relays, 4 AUX outputs. Expandable to 64 inputs + 64 outputs with up to 8 EX0808 expansion boards.
✓ eSSL BioCVsecurity 6.4.1 Web Software – Web-based management with real-time monitoring via any browser. Database options: PostgreSQL (default), MSSQL, or Oracle.
✓ Open Platform & SDK – Software Development Kit (SDK) allows custom integration with existing security software or development of new applications.
Technical Specifications (eSSL C3-400 Plus)
| Operating System | Linux OS |
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| Number of Doors Controlled | 4 Doors |
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| Card Capacity (Default) | 30,000 (expandable to 100,000 with license) |
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| Transaction Capacity | 500,000 |
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| QR Code Capacity | 100,000 (Static QR Code / Dynamic QR Code) |
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| CPU | Single Core @ 1.0GHz |
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| RAM / ROM | 128MB / 256MB |
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| Communication Protocols | TCP/IP (Ethernet) and RS-485 |
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| Readers Supported | 8 × RS-485 (ZKTeco RS-485 / OSDP) + 4 × Wiegand (26/34/66 bit) |
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| Number of Inputs (Built-in) | 12 (4 Exit Device, 4 Door Sensor, 4 AUX Input) |
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| Number of Outputs (Built-in) | 8 (4 Lock Relay, 4 AUX Output) |
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| I/O Expandability | Up to 8 × EX0808 modules (64 inputs + 64 outputs) |
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| Max. Card Length | Up to 66 bits |
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| Encryption | AES 256-bit (data storage), AES 128-bit (communication), HTTPS / TLS 1.2 |
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| Access Control Interface | Wiegand (Card/QR Code Reader), RS-485 (Card Reader) |
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| Supported Software & Database | eSSL BioCVsecurity 6.4.1 (Web) / PostgreSQL (default), MSSQL, Oracle |
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| Software Features | 256 Time Zones, 256 Access Levels, Anti-passback, Interlock, Linkage, Multi-Card Opening, Remote Door Control, Real-Time Web Monitoring |
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| Power Supply | 9.6V – 14.4V DC |
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| Mounting | Wall Mount |
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| Operating Temperature / Humidity | 0°C to 45°C / 20% – 80% RH (Non-condensing) |
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| Dimensions (Board) | 216 mm × 99 mm × 19.3 mm (approx.) |
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| Compatible Readers | RS-485 FR Series, Wiegand Proximity Readers, QR Code Readers (QR50, QR500, QR600) |
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| Authentication Methods | RFID Cards / Dynamic QR Code / Password |
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eSSL Access Control Series: Choose Your Model
| Feature | C3-100 Plus | C3-200 Plus | C3-400 Plus |
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| Doors Controlled | 1 Door | 2 Doors | 4 Doors |
| Card Capacity | 30,000 (expandable to 100,000) |
| Transaction Capacity | 500,000 |
| Readers Supported | 8 RS-485 + 4 Wiegand |
| Operating System | Linux OS |
| Encryption | AES 256-bit / AES 128-bit / TLS 1.2 |
Complete Management with eSSL BioCVsecurity 6.4.1
- Web-Based Access Management: Fully featured, browser-based software (eSSL BioCVsecurity 6.4.1) that requires no additional client installations.
- Flexible Database Support: Default PostgreSQL with options for MSSQL or Oracle.
- Advanced Security Features: Configure 256 time zones, 256 access levels, holidays, anti-passback, interlock, linkage, multi-card opening, remote door control.
- Real-Time Monitoring and Reports: Live web-based event viewer with comprehensive audit trails and report generation.
- PC Requirements: Windows 10 or above, 16GB RAM recommended.
How the eSSL Access Control System Operates
- ❶ Centralized Management: Admin registers credentials (cards, QR codes, passwords) into the eSSL BioCVsecurity web software. Define access rules: who can enter which door, during what time zone, and with anti-passback constraints.
- ❷ Reader Authentication: Reader sends card / QR code ID to C3-400 Plus controller via Wiegand or RS-485 protocol. The controller supports multiple authentication methods including RFID cards, dynamic QR codes, and passwords.
- ❸ Access Decision & Encryption: Controller instantly checks credential against database using AES 256-bit encryption for stored data. For controller-reader communication, AES 128-bit encryption secures the data exchange.
- ❹ Lock Activation: Upon approval, controller energizes the appropriate lock relay to grant entry. Built-in dry/wet mode support via jumper settings ensures compatibility with various lock types.
- ❺ Real-Time Monitoring & Logging: Every access attempt is logged in the 500,000-event buffer with timestamps. Administrators can monitor door status in real time via the web browser.
Transforming Security – Why Choose an eSSL Access Control System?
📈 Enterprise Scalability: From 1 door to large multi-site facilities, the C3-400 Plus can be networked with multiple controllers and expanded via EX0808 modules to accommodate growing security needs.
📡 Open Platform & SDK: The available Software Development Kit (SDK) allows custom integration with existing security software or development of new applications.
🛡️ Advanced Encryption & Compliance: AES 256-bit encryption for data storage, AES 128-bit for communication, and HTTPS/TLS 1.2 for server-to-client security ensure protection against cyber threats.
🏛️ Ideal For: Corporate multi-entry floors, high-security labs, server rooms, warehouses, manufacturing units, apartment buildings, hotels, hospitals, university campuses, and government buildings.
Seamless Integration with HRMS & Payroll Systems
The eSSL C3-400 Plus integrates effortlessly with ERP systems, third-party HRMS platforms like Spine, GreytHR, and HROne, CRM software like Zoho, and payroll software like Candle, Saral, and Oracle — creating a unified workforce and security ecosystem.
Expandable Architecture for Growing Security Needs
The eSSL C3-400 Plus is designed for scalable deployments across multiple doors. One controller can manage up to 4 doors and thousands of users. For larger installations, multiple C3-400 Plus controllers can be installed on the same network and managed from the centralized BioCVsecurity web platform. Additionally, up to 8 EX0808 I/O expansion boards can be connected via RS-485, expanding total inputs to 64 and outputs to 64.
Frequently Asked Questions (FAQ)
What is eSSL access control?
eSSL access control is a complete hardware and software system that manages and monitors entry into restricted areas. The C3-400 Plus is the central controller that processes access requests and manages up to 4 doors with 100,000 cardholders and 500,000 transaction logs.
What are the key features of the eSSL C3-400 Plus?
The eSSL C3-400 Plus features a Linux OS, 4-door control, card capacity of up to 100,000, 500,000 transaction logs, TCP/IP connectivity, support for 8 RS-485 + 4 Wiegand readers, 12 inputs, 8 outputs, anti-passback, interlock, multi-card opening, and real-time web-based monitoring via eSSL BioCVsecurity 6.4.1 software.
How many card readers can the C3-400 Plus support?
The eSSL C3-400 Plus supports up to 12 readers: 8 RS-485 (ZKTeco RS-485 / OSDP compatible) and 4 Wiegand readers (W26/W34/W66), allowing flexible integration with various card and QR code readers.
What software is used to manage the eSSL C3-400 Plus system?
The C3-400 Plus is managed by eSSL BioCVsecurity 6.4.1 (Web Version), which supports PostgreSQL (default), MSSQL, or Oracle databases. It provides 256 time zones, 256 access levels, anti-passback, interlock, linkage, multi-card opening, remote door control, and real-time web-based monitoring.
Does the eSSL C3-400 Plus support expansion for larger installations?
Yes, the C3-400 Plus supports I/O expansion via EX0808 modules (8 inputs + 8 outputs each). Up to 8 EX0808 modules can be connected over RS-485, expanding total I/O to 64 inputs and 64 outputs.
What security encryptions does the eSSL C3-400 Plus employ?
The C3-400 Plus uses AES 256-bit encryption for stored data, AES 128-bit encryption for controller-reader communication, and HTTPS / TLS 1.2 for server-to-client web communication, ensuring comprehensive data protection.
Do you provide installation and after-sales support in Pune?
Yes, eSSL Pune provides complete installation services for the C3-400 Plus controller, including configuration, reader setup, and integration with your existing security systems. We also offer dedicated after-sales support from our Pune-based team.