SDC IC-UR48-SPEC 4-Door Access Controller
The SDC IC-UR48-SPEC is a 4-door access control controller engineered for mid-scale commercial facilities that require independent per-door access logic without enterprise platform overhead. Managing up to 250,000 user profiles across coordinated credential verification, the IC-UR48-SPEC sits between your HID card readers and strike hardware as a localized enforcement point. Built for office complexes, secure facilities, and multi-tenant buildings where each door or tenant zone operates under separate access policies, it integrates into existing reader networks via OSDP and TCP/IP rather than displacing legacy infrastructure.
Key Features
- 4-Door Independent Control: Manages up to 4 separate doors with individual access policies, lockout rules, and credential verification per door. Eliminates the need for separate single-door controllers across multi-entry facilities.
- 250,000 User Capacity: Stores up to 250,000 credential profiles on-device. Suitable for larger facilities, corporate campuses, and multi-tenant deployments without hitting controller memory limits.
- OSDP Protocol Support: Open Supervised Device Protocol (OSDP) enables encrypted reader communication and real-time credential status sync. More secure and standardized than legacy Wiegand, reduces tampering surface.
- TCP/IP Connectivity: Network-based integration with access management software and remote monitoring. Simplifies audit trail logging and credential revocation across multiple sites if networked to a central system.
- HID Credential Format: Native support for HID card and reader ecosystems. Allows mixed reader deployments (legacy and current-generation) without requiring parallel controller hardware.
- Wired Deployment: Hardwired door strike control and reader signal lines eliminate wireless latency concerns and RF interference in dense multi-door environments. Requires coordinated terminal routing during installation.
- Local Access Logic: Processes credential verification and door unlock decisions at the controller level, not dependent on real-time network availability. Supports offline operation if management software connection is lost.
- Lifetime Warranty: Factory-backed warranty coverage provides long-term hardware reliability assurance for commercial deployments.
The IC-UR48-SPEC is built for integrators managing mid-scale access control where you're consolidating readers under a single enforcement point. OSDP and TCP/IP protocols let you avoid a full platform migration if you're working with mixed-generation reader hardware. On a 15-door building, deploying four IC-UR48-SPEC units (one per floor or zone) is less expensive and simpler to manage than a monolithic NVR-style access server, and each controller handles door-level policy independently — so a lost network connection to one floor doesn't lock out the entire building.
HID credential support means your existing card stock and reader infrastructure integrate directly; no credential conversion or reader replacement is required upfront. The 250,000 user capacity handles corporate campus environments with seasonal contractor onboarding, visitor credential batches, and large employee rosters without hitting storage ceilings. Local access logic ensures that even if your management software or network link goes down, the controller continues to honor previously synced credential lists and door policies until connectivity is restored.
Deployment context is critical: the IC-UR48-SPEC is a wired, interior controller suitable for electrical closets and equipment rooms. It is not environmental-hardened for outdoor mounting, direct sunlight exposure, or temperature extremes. Coordinate with your electrical and security integrator on terminal wiring layout, door strike circuit polarity, and reader signal line routing before installation. TCP/IP connectivity requires network drops to the controller location; OSDP readers can be wired separately if network drops aren't available.
The IC-UR48-SPEC fits mid-market access control where you need multi-door coordination without enterprise platform complexity. It integrates into existing HID reader networks and management software ecosystems, supports both legacy and current OSDP protocols, and handles 250,000 credential profiles per controller. Choose this device when your facility requires independent per-door policies, mixed reader support, and local access intelligence without central server dependency. Confirm reader model compatibility and management software version with your integrator before specification.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've deployed the IC-UR48-SPEC in office towers, medical facilities, and multi-tenant buildings where you need coordinated credential management across 4 doors without standing up a full enterprise access control platform. The real value is in the independence — each door runs its own access policy, and network failure on one floor doesn't cascade to others. We've seen integrators spec this as a building-block controller: deploy one per floor or per tenant zone, network them back to a central management server if that's in your architecture, or operate them in standalone mode if the facility is segregated. The 250,000 user capacity handles most mid-market facilities with room to grow; we've rarely hit that ceiling outside large corporate campuses with aggressive contractor credential onboarding. OSDP protocol support is the forward-looking move — it encrypts reader communication, prevents credential interception, and plays well with newer readers from Salto, HID, and Kaba. If you're working with a mixed reader ecosystem (some legacy Wiegand, some newer OSDP), the IC-UR48-SPEC bridges that gap without forcing a wholesale reader replacement. That's a real cost savings on renovation or expansion projects.
Technical Highlights:
- 250,000 User Profiles: On-device credential storage scales to mid-market facility sizes — office complexes, hospitals, and multi-tenant buildings don't hit this limit under normal operations. Reduces dependency on constant network sync for large credential batches.
- OSDP + TCP/IP Dual Protocol: OSDP handles encrypted reader-to-controller communication; TCP/IP enables management software integration and remote monitoring. The dual approach lets you mix reader generations without hardware swap, preserving capex during transitions.
- Independent Door Logic: Each of the 4 doors runs separate access policies, lockout timers, and credential verification rules. Particularly valuable in multi-tenant or multi-floor environments where access policies differ by zone.
- Local Access Processing: Credential verification and door unlock decisions happen at the controller, not on a remote server. Network outage doesn't mean doors stop responding — previously synced credentials and policies remain enforced until connection is restored.
- HID Credential Ecosystem: Native HID format support integrates directly with existing card stock and reader networks — no credential conversion or reader reconfiguration needed, reducing integration friction and cost.
- Wired Connectivity: Hardwired door strike and reader circuits eliminate RF interference and latency concerns common in dense multi-door environments. Requires careful terminal layout and polarity verification at installation.
Deployment Considerations:
- Interior-only rated — do not mount outdoors or in uncontrolled temperature/humidity environments. Electrical closet or equipment room deployment is the standard; coordinate facility power and network infrastructure with your IT team.
- Wired reader signal and door strike control require terminal routing and polarity verification before energization. A miswired strike circuit or reversed reader signal can corrupt credentials or lock doors in fault state — engage an access control integrator for proper circuit layout.
- OSDP readers must be physically wired to the controller if they're not on network drops; TCP/IP only handles management software and remote monitoring, not reader communication. Plan your reader wiring topology during design phase.
- Network integration (TCP/IP) is optional for basic 4-door operation but strongly recommended for audit logging, credential revocation, and multi-site management. Verify your management software version supports the IC-UR48-SPEC before specification.
- Credential database of 250,000 users is per-controller — if you deploy multiple units, each stores its own list. Central management software handles sync and policy enforcement across controllers, but confirm that your VMS or access platform supports multi-controller credential replication.
- Lifetime warranty covers hardware defects, but does not include reader replacement or strike mechanism repair — those are separate line items. Budget for reader service contracts and electrical maintenance separately.
The IC-UR48-SPEC is the right choice for integrators managing mid-scale access control who need multi-door coordination without enterprise complexity, independent per-door policies, and the flexibility to work with mixed reader ecosystems. Spec this device when you're expanding an existing facility, managing a multi-tenant building, or consolidating readers under a single enforcement point. For more options in the SDC access control lineup, visit the SDC catalog.
