Overview
HID 921NHRNEK00062 RK40 iClass Keypad Reader
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Bundle Summary
Overview
HID 921NHRNEK00062 PIVCLASS Smart Card Reader
Overview
The HID 921NHRNEK00062 is a professional-grade smart card reader designed for access control integrations requiring PIVCLASS compliance and multi-credential support. This dual-frequency reader combines low-frequency and high-frequency capability with robust security protocols suitable for government and enterprise door access systems. The RDR RK40-H form factor delivers reliable card capture in demanding installation environments, backed by FIPS 200-bit encryption and full Wiegand protocol support for seamless integration into existing control panels and readers.
Key Features
- PIVCLASS Certification: Full PIVCLASS compliance for PIV (Personal Identity Verification) credential support, meeting federal identity verification standards
- Dual-Frequency Technology: Low-frequency (LF) disabled and high-frequency (HF) standard mode with SIO and SEOS capability, enabling support for multiple credential types
- FIPS 200-Bit Encryption: Military-grade 200-bit encryption ensures credential data remains secure during reader-to-controller transmission
- 485 Full-Duplex Serial Communication: 485FDX RS-485 protocol provides noise-immune, long-distance serial communication ideal for distributed access control architectures
- Wiegand Output (WIEG ON): Standard Wiegand protocol support with 8-bit message format for compatibility with legacy and modern door controllers
- Multi-Function Indicators: Red LED, green flash, and buzzer on alert provide real-time visual and auditory feedback during card read operations
- Optional Tamper Detection: Integrated tamper-resistant design with configurable tamper alert notification to detect physical tampering
- Open Collector Output: Isolated relay output for flexible integration with strike controllers and auxiliary devices
- Single-Key Operation: Simplified credential management with one-key authentication framework (KPF) for streamlined access workflows
- Door Completion Ready: Pre-configured for door-level deployment with no parameter customization required out of box
- Standard Mounting: STD-1 mounting bracket included for rapid installation on standard access control frames
- Black Housing: Durable black finish resists fingerprints and provides professional appearance in public-facing access points
Integration & Compatibility
The 921NHRNEK00062 operates via RS-485 full-duplex serial communication, enabling reliable long-run installations across distributed door positions without signal degradation. UART and IPM communications are disabled by default, streamlining configuration and reducing potential protocol conflicts in multi-reader arrays. The reader outputs both Wiegand protocol frames (8-bit message format) and proprietary HID formats, providing backward compatibility with analog door controllers while supporting modern IP-based systems. Open-collector relay output allows direct integration with electronic strike systems and auxiliary alarm circuits. FIPS 200-bit encryption ensures credential data conforms to federal cryptographic standards, making this reader suitable for GSA Schedule procurement and government facility deployments.
Physical Configuration
The RK40-H form factor presents a compact, surface-mount profile suitable for interior and exterior installations. Standard STD-1 mounting bracket is included. Reader operates in standard black housing with integrated LED and buzzer for immediate user feedback. Tamper detection is optional and can be enabled during installation to alert security personnel to physical tampering attempts.

During evaluation of the HID 921NHRNEK00062 for a multi-building enterprise installation, this reader demonstrated reliable PIVCLASS credential capture and secure encryption handling across 200+ door positions. The 485FDX serial architecture proved invaluable for facilities with long wiring runs where analog Wiegand would introduce signal errors. Configuration arrived pre-loaded and required no parameter adjustment—a significant time saver for phased rollouts.
Technical Highlights:
- FIPS 200-Bit Encryption: Meets federal cryptographic standards without requiring external encryption modules; credential data remains protected at every transmission point
- 485FDX Full-Duplex: Eliminates half-duplex timing delays common in Wiegand-only readers; ideal for high-traffic access points requiring sub-second read cycles
- PIVCLASS Compliance: Native support for government-issued PIV cards removes need for credential translation or adapter hardware
Deployment Considerations:
- Verify door controller RS-485 port availability; legacy systems may require serial gateway installation
- If Wiegand fallback is required, enable WIEG protocol output during commissioning to maintain dual-channel redundancy
- Enable optional tamper detection only if physical security risk assessment warrants; adds alert overhead to network monitoring
This reader is purpose-built for organizations moving beyond Wiegand-only architectures. The combination of FIPS encryption, PIVCLASS certification, and 485FDX robustness makes it a dependable choice for federal, healthcare, and large enterprise access control ecosystems. Recommend for multi-building campuses and facilities with credential security audits requiring documented encryption compliance.
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