Overview
SDC/Security Door Controls 423UL1G Access Controller
SDC/Security Door Controls 423UL1G Access ControllerOverviewThe SDC 423UL1G is a networked access control controller engineered for mid to large-scale…
SDC/Security Door Controls 423UL1G Access Controller
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Bundle Summary
Overview
SDC/Security Door Controls 423UL1G Access Controller
Overview
The SDC 423UL1G is a networked access control controller engineered for mid to large-scale installations requiring multi-door management and credential flexibility. It delivers centralized control across up to 63 doors with support for 250,000 user records, making it suitable for enterprise facilities, multi-tenant buildings, and integrated security deployments.
Key Specifications
Door Capacity: 63 doors | User Capacity: 250,000 users | Voltage: 24VDC | Credential Support: DESFire, MIFARE, NFC/13.56MHz, 125kHz Proximity | Communication: OSDP and TCP/IP protocols | Function: DPDT relay, 1-60 second adjustable timing (green indicator)
Compatibility
Integrates with OSDP-compliant readers and access control systems supporting TCP/IP network deployment. Compatible with DESFire and MIFARE smart cards, NFC badges, and legacy 125kHz proximity credentials, allowing mixed-credential environments without reader replacement. Designed for installers requiring protocol flexibility and scalable multi-door architectures.
System Design, Deployment & Technical Support
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
System Design Assistance
- Get help validating product compatibility
- Coverage requirements
- Storage planning and deployment architecture before you buy.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
- Storage retention
- Camera selection and deployment methodology