SDC LR100VDK Electric Retrofit Controller
The LR100VDK is a multi-door access control retrofit controller engineered specifically for Von Duprin electrified hardware. It delivers enterprise-grade access control through standards-based OSDP and TCP/IP communication, making it a practical choice for integrators upgrading existing Von Duprin installations or deploying new multi-door environments without vendor lock-in constraints.
Key Features
- 63 Doors per Controller: Manage up to 63 doors from a single LR100VDK unit — reduces the number of controllers needed in medium to large facilities, lowering upfront hardware cost and simplifying network topology.
- 250,000 User Credentials: Handles substantial credential databases without performance degradation — relevant for enterprise buildings, multi-tenant complexes, and facilities with high personnel turnover where card and access record management scales without controller replacement.
- Multi-Technology Card Support: Supports DESFire, MIFARE, NFC/13.56MHz, and 125kHz Prox cards — future-proofs your investment by avoiding dependence on a single card technology and allows gradual migration between reader types on your timeline.
- OSDP Communication: Implements Open Supervised Device Protocol for secure, standardized reader-to-controller communication — eliminates proprietary wiring schemes and allows you to source readers and controllers from different manufacturers without custom integration work.
- TCP/IP Networking: Integrates directly with mainstream IP-based access control platforms over standard Ethernet — uses existing network infrastructure rather than requiring dedicated serial lines or closed-loop architectures, reducing deployment costs and simplifying remote management.
- Von Duprin Retrofit Design: Purpose-built to work with Von Duprin electrified locks and door hardware — if you're replacing control logic on existing Von hardware, the LR100VDK avoids costly lock replacement and leverages sunk infrastructure investment.
Integration & Compatibility
The LR100VDK connects to OSDP-compliant reader ecosystems and IP-based access control management platforms. Its wired architecture and standards-based protocols make it suitable for commercial buildings, offices, multi-tenant facilities, and warehouses where centralized access policy enforcement and audit trails are non-negotiable. The controller supports diverse credential formats, so you're not locked into a single supplier for cards or readers — a significant advantage if your organization needs to upgrade reader hardware or consolidate credentials across multiple facilities.
Deployment Considerations
The LR100VDK is a wired controller, not a wireless or cloud-dependent device — this means installation requires network cabling and a stable IP connection to your access control platform. For retrofit scenarios, verify that your existing Von Duprin door hardware supports the electrical and mechanical interface of the LR100VDK before ordering. Its 63-door capacity is sufficient for most single-building deployments; larger multi-building sites may require additional controllers.
Frequently Asked Questions
Q: Is the LR100VDK compatible with my existing Von Duprin locks?
A: The LR100VDK is designed as a retrofit controller for Von Duprin electrified hardware. Verify your specific lock model and hardware revision against the datasheet to confirm compatibility before installation.
Q: Does the LR100VDK work with my current access control software?
A: The LR100VDK supports OSDP and TCP/IP communication, which are industry standards. Your access control platform must support OSDP reader protocol and IP networking. Check with your platform vendor for certified compatibility.
Q: How many credentials can the LR100VDK store?
A: The controller supports up to 250,000 user credentials. This capacity is sufficient for large enterprises and multi-tenant facilities.
Q: Can I use different card technologies with the LR100VDK?
A: Yes. The LR100VDK supports DESFire, MIFARE, NFC/13.56MHz, and 125kHz Prox cards, allowing you to deploy multiple card types in the same system.
Q: What networking equipment do I need to install the LR100VDK?
A: The LR100VDK connects via TCP/IP over standard Ethernet. You'll need network cabling, a managed or unmanaged switch, and a connection to your access control platform on the same IP network or via VPN.
Q: How many doors can a single LR100VDK manage?
A: A single controller supports up to 63 doors. Larger facilities may require multiple controllers deployed in parallel, each managing a separate door set.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
I've fielded dozens of Von Duprin retrofit inquiries, and the LR100VDK solves a real problem: you've got installed Von hardware that works mechanically, but the control logic is aging or proprietary. The LR100VDK lets you keep the locks and door hardware in place while swapping in a modern, standards-based controller. That's a cost win compared to replacing the entire door assembly.
Technical Highlights:
- 63-Door Capacity: One controller per 63 doors means you're not over-provisioning hardware on smaller jobs or fragmenting policy management across five controllers in a mid-size building. Scale it linearly as the facility grows.
- 250,000 Credentials: This isn't a limiting factor for enterprise deployments. You won't hit this ceiling except in very large, multi-building scenarios — and even then, the per-door cost of adding a second controller is modest.
- OSDP + TCP/IP: This combination is non-negotiable for modern access control. OSDP kills the proprietary reader interface, and TCP/IP means you're on your network stack — no serial cables, no closed architectures. Your platform choices expand dramatically.
- Multi-Card Support (DESFire, MIFARE, Prox, NFC): You're not locked into one card vendor. If the client wants to migrate from 125kHz Prox to MIFARE for better security, you can do it reader-by-reader without controller swaps.
Deployment Considerations:
- Wired Only: The LR100VDK is hardwired — no wireless failover, no battery backup built into the unit itself. If your spec calls for power continuity during mains loss, pair it with a dedicated UPS on that circuit and verify your ACP platform can queue offline access attempts.
- Von Duprin Retrofit, Not Universal: Don't assume this works on all electrified hardware. It's retrofit-specific to Von Duprin. If the client has Schlage, HES, or other brands, you'll need a different controller — verify the lock model number before quoting.
- Platform Dependency: The LR100VDK is a reader-to-door controller, not a standalone system. It requires an IP-connected ACP platform (Axis, Johnson, Genetec, Milestone Husky, etc.) that speaks OSDP. If the client is running an older legacy system without OSDP support, you're looking at a platform upgrade, not just a controller swap.
Best fit: Commercial office parks, multi-tenant buildings, and warehouse facilities already running Von Duprin hardware and upgrading to modern IP-based access control. If the goal is a standards-based retrofit that opens up reader and software choices, the LR100VDK delivers that. If you need wireless or a standalone system, look elsewhere.
