Product Overview
The DO-DT20 20-40 Floors TCP/IP Elevator Control Board is a dedicated elevator access control cabinet controller designed for multi-floor access management in commercial and residential buildings. This industrial-grade elevator controller supports up to 20 floors natively and can be expanded to 40 floors with one additional DO-DT20K module. Engineered for system integrators, security contractors, and building management teams, the DO-DT20 delivers reliable floor-by-floor access restriction using standard Wiegand 26/34-bit card readers. A free SDK is included to support custom software integration, project deployment, and large-scale building automation systems.
Unlike traditional one-reader-per-door access control systems, the DO-DT20 enables a single card reader at the elevator panel to manage access across multiple floors. Users swipe their credential once, and the system grants access only to authorized floors. This makes the DO-DT20 an ideal solution for office towers, residential complexes, hospitals, hotels, and government facilities requiring centralized elevator access governance. As a professional RFID reader manufacturer, we supply this controller to wholesalers, distributors, and OEM partners worldwide for commercial and industrial deployment.
Product Advantages
- Multi-Floor Control with Single Reader: Eliminates the need for multiple readers per elevator. One Wiegand reader connects to the DO-DT20 to manage all floor access.
- TCP/IP Network Communication: 10M/100M self-adaptive Ethernet ensures reliable real-time data exchange with the central management PC, suitable for large-scale networked deployments.
- Large User & Event Capacity: Supports up to 20,000 users and stores 100,000 offline event buffers, providing robust data logging and access history for security audits.
- Expandable Architecture: Native support for 20 floors. Adding one DO-DT20K extends control to 40 floors, offering scalability for growing building requirements.
- Free SDK for Custom Integration: Enables system integrators and developers to build custom access control software, integrate with third-party platforms, or embed elevator control into larger building management systems.
- Industrial-Grade Reliability: Stable 12V DC 5A power supply input, compact form factor (164mm × 106mm), and lightweight design (0.30 kg) suitable for cabinet mounting in commercial environments.
Key Features
- Wiegand 26/34-bit input format – compatible with all major card reader protocols (HID, EM, Mifare, Motorola, etc.)
- 20,000 user credential capacity for large resident or employee databases
- 100,000 offline event buffer ensures no data loss during network interruptions
- TCP/IP 10M/100M self-adaptive communication for seamless LAN/WAN integration
- Supports 20 floors standard; expandable to 40 floors with DO-DT20K
- Compact dimensions: 164mm × 106mm – fits easily into standard elevator cabinets
- Free SDK included for software customization and project integration
- Multi-floor privilege assignment – each user can access one or multiple floors based on authorization
- Security and administrator profiles can be configured with unrestricted floor access
- Prevents unauthorized floor button presses – only permitted floors are selectable after card validation
Technical Specifications
| Model | DO-DT20 |
| Input Format of Reader | Wiegand 26/34-bit (compatible with all standard card readers) |
| Q’ty of Users | 20,000 |
| Q’ty of Event Buffers (offline) | 100,000 |
| Power Supply | 12V DC 5A |
| Communication to PC | TCP/IP 10M/100M self-adaptive |
| Number of Supported Floors | 20 floors (expandable to 40 with DO-DT20K) |
| Dimension (L × D × H) | 164mm × 106mm |
| Net Weight | 0.30 kg |
Industrial Applications
The DO-DT20 elevator access control controller is purpose-built for environments where centralized floor access management is required. Typical commercial and industrial applications include:
- Office Towers & Corporate Buildings: Restrict floor access to authorized employees only. Visitors and contractors are limited to designated floors.
- Residential Apartments & Condominiums: Residents gain access only to their own floor and common areas. Enhanced security for multi-tenant buildings.
- Hotels & Hospitality: Guests can only access their assigned floor and lobby areas. Staff credentials can be programmed for multiple floors as needed.
- Hospitals & Healthcare Facilities: Control access to sensitive floors such as operating rooms, pharmacies, and administrative areas while allowing general access to public floors.
- Government & Military Installations: Strict floor-level security clearance enforcement with audit trail logging for compliance.
- Educational Campuses: Limit student and staff access to specific floors in dormitories, libraries, or administrative buildings.
OEM / ODM Manufacturing Support
As an experienced RFID reader manufacturer with over two decades of production expertise, we offer comprehensive OEM and ODM services for the DO-DT20 elevator controller and related access control products. Our factory supports:
- Custom Firmware: Modify access logic, communication protocols, or feature sets to meet project-specific requirements.
- Hardware Customization: Adjust I/O configurations, relay outputs, or enclosure design for unique cabinet layouts.
- Brand Labeling: Apply your company logo, model numbers, and packaging for wholesale distribution or branded product lines.
- SDK Co-Development: Extend the free SDK with custom APIs, integration modules, or mobile app support under your brand.
- Technical Documentation: Provide customized manuals, wiring diagrams, and installation guides for your end customers.
We welcome bulk orders, private label projects, and long-term OEM partnerships. Contact our sales team at info@dorfidreader.com to discuss your customization requirements and project timeline.
Factory Production Advantages
Our manufacturing facility is equipped to handle high-volume production while maintaining consistent quality and fast lead times. Key production advantages include:
- 20+ Years of Manufacturing Experience: Proven track record in producing RFID readers, controllers, and access control hardware for global markets.
- In-House Quality Inspection: Every DO-DT20 controller undergoes functional testing, communication verification, and power stability checks before packing.
- Stable Supply Chain: Long-term relationships with component suppliers ensure continuous production and reliable inventory for bulk orders.
- Fast Production Lead Times: Sample orders are typically completed within 1–5 days; bulk orders are fulfilled within 7–30 days depending on quantity.
- Expert Export Knowledge: We handle international shipping documentation including CO, FTA, Form F, Form E, and other customs clearance certificates.
- Flexible Shipping Options: DHL, FedEx, TNT, UPS, EMS, sea freight, and air freight available. Customers may also arrange their own forwarders.
Bulk Supply & Project Deployment Support
For system integrators, distributors, and project contractors, the DO-DT20 is available in wholesale quantities with dedicated support for large-scale deployments. We understand that elevator access control projects require careful planning, consistent hardware performance, and responsive technical assistance. Our team provides:
- Project Consultation: Assist with system design, floor mapping, and controller network topology planning.
- Bulk Pricing: Competitive wholesale rates for volume orders with tiered discounts.
- Sample Validation: Free samples available for pre-deployment testing (freight charges apply).
- Technical Support: Installation guidance, troubleshooting, and SDK integration assistance for project engineers.
- Long-Term Warranty: 2–3 year warranty on manufacturing defects (non-human damage).
Whether you are equipping a single office tower or deploying elevator access control across a multi-building campus, the DO-DT20 provides the reliability and scalability required for professional projects.
Frequently Asked Questions (FAQ)
Q: How does the DO-DT20 elevator controller manage multiple floor access with a single reader?
A: When a user swipes their credential at the elevator reader, the DO-DT20 validates the card and enables only the floor buttons that the user is authorized to access. Unauthorized floors remain locked. Users with multi-floor privileges can select their desired floor after authentication.
Q: Can I integrate the DO-DT20 with my existing access control software?
A: Yes. The DO-DT20 communicates via TCP/IP using standard Wiegand input and includes a free SDK for custom software integration. This allows connection to third-party building management systems or proprietary access control platforms.
Q: What reader types are compatible with this controller?
A: The DO-DT20 accepts Wiegand 26/34-bit input, making it compatible with virtually all commercial card readers, including those using HID, EM, Mifare, and Motorola protocols.
Q: How many floors can I control with one DO-DT20 unit?
A: One DO-DT20 supports up to 20 floors. For buildings requiring 21–40 floors, simply add one DO-DT20K expansion module.
Q: What are the payment and shipping terms for wholesale orders?
A: We accept T/T, PayPal, Western Union, and Trade Assurance. Shipping can be arranged via express (DHL, FedEx, TNT, UPS), air freight, or sea freight. EXW, FOB, CIF, and CFR terms are all available.
Q: Do you offer OEM or private label services for the DO-DT20?
A: Yes. We provide full OEM/ODM services including custom firmware, hardware modifications, brand labeling, and packaging. Contact us at info@dorfidreader.com with your requirements.
Q: How long does a sample order take to deliver?
A: Sample orders are typically dispatched within 1–5 working days after order confirmation. Bulk orders are completed in 7–30 days depending on quantity and customization level.
Why Choose DO RFID Reader as Your Supplier
DO RFID Reader is a specialized RFID reader manufacturer and access control hardware supplier with a strong focus on industrial-grade products and project-oriented solutions. Our elevator control boards are designed by experienced engineers who understand the demands of commercial building security, system integration, and large-scale deployment. We prioritize stable manufacturing, consistent quality, and responsive technical support for every customer — from small integrators to multinational distributors.
We invite you to evaluate the DO-DT20 for your next elevator access control project. Request a quote, request free samples, or contact our technical team for assistance with your system design. Send your inquiry to info@dorfidreader.com and we will respond within 24 hours.
For technical specifications, OEM customization, bulk pricing, or project consultation, contact DO RFID Reader directly.