HID 921PHRTEK0033B RPK40-H PIVClass SE LF Reader

HID 921PHRTEK0033B RPK40-H PIVCLASS Smart Card Reader

Overview

The HID 921PHRTEK0033B is an RPK40-H credential reader engineered for enterprise access control deployments requiring PIVCLASS compliance and multi-frequency identification support. This reader integrates low-frequency (LF) standard and high-frequency (HF) standard protocols, delivering dual-technology credential capture in a single form factor. The unit operates over RS-485 full-duplex serial communication with terminated configuration, supporting both traditional wiegand and modern UART protocols for flexible system integration.

Designed for security integrators, IT managers, and access control installers, the 921PHRTEK0033B provides FIPS-validated security architecture with optional smart card activation key (CAK) support. The reader's black finish and compact mounting profile accommodate standard door frame installations while maintaining visual discretion in corporate and institutional environments.

Key Features

• PIVCLASS Certification: Meets NIST PACS standards for federal and enterprise credential validation
• Dual-Frequency Technology: Low-frequency (LF) standard and high-frequency (HF) standard credential support with SIO and SEOS protocol variants
• RS-485 Full-Duplex Communication: 485FDX terminated configuration ensures reliable serial data transmission across extended cable runs in multi-reader installations
• FIPS Compliance: Optional FIPS encryption mode with smart card activation key (CAK) support for government and regulated industry deployments
• UART Protocol Support: UART-enabled communication with ASCII transmission completion reporting and IPM (intelligent power management) disabled for consistent power delivery
• Visual Feedback: Red LED status indicator with green flash confirmation and audible buzzer feedback (enabled) for user acknowledgment
• Tamper Detection: Optional tamper-switch configuration for unauthorized access attempt monitoring
• Wiegand Protocol Disabled: Default wiegand-off configuration supports modern protocol-based access control systems, with option to enable for legacy system compatibility
• Open Collector Output: KPF (keypad feedback) line with open-collector configuration for auxiliary device triggering and multi-reader synchronization
• Extended Reader Configuration: Standard-1 mounting profile with STD terminal blocks for field installation and credential format flexibility

Integration & Compatibility

The 921PHRTEK0033B integrates seamlessly into access control systems requiring PIVCLASS validation and multi-credential type support. RS-485 full-duplex communication with terminated configuration (TERM) enables daisy-chaining across building entry points without requiring separate power supplies or signal repeaters. The reader's ASCII output mode with transmission completion (XMIT CMPLT) reporting ensures access control panels receive complete credential data before processing authorization decisions.

UART protocol support with IPM disabled maintains constant reader availability without adaptive power cycling, critical for high-security environments where response latency must be minimized. The reader's black finish (BLK) and standard mounting accommodates both surface-mount and recessed installations typical in corporate campuses, government facilities, and healthcare access control networks.

Optional tamper-switch activation (OPT TAMP) provides real-time detection of reader removal or bypass attempts, triggering alarm signals to building management systems. The green flash confirmation LED with red status indicator and enabled buzzer (BZR ON) delivers immediate visual and auditory feedback to credential holders, reducing reader misuse and improving user experience across large-scale deployments.

Ted Perry

During access control system deployments across multi-site enterprises, the HID 921PHRTEK0033B proves particularly valuable for organizations transitioning from single-frequency to dual-technology credential environments. The PIVCLASS certification ensures federal compliance if your organization supports government employee access, while the 485FDX full-duplex communication eliminates common serial noise issues that plague single-ended wiegand deployments across extended distances.

Technical Highlights:

• Protocol Flexibility: UART-native operation with ASCII output and transmission completion reporting integrates with modern access control platforms without legacy wiegand dependencies
• Security Architecture: FIPS-validated with optional CAK support means the 921PHRTEK0033B satisfies federal procurement requirements without secondary certification investments
• Dual Frequency (LF/HF Standard): Captures both proximity card (LF) and smartcard (HF) credentials in single reader installation, reducing hardware footprint and maintenance overhead

Deployment Considerations:

• Ensure access control panel supports RS-485 full-duplex serial input; older wiegand-only systems require gateway conversion hardware
• Verify building cabling infrastructure supports 485FDX shielded twisted-pair; unshielded runs over 500 feet may introduce bit errors requiring repeater amplification
• Enable optional tamper detection if reader installation occurs in unsecured perimeter zones or outdoor weather-exposed locations
• Configure UART baud rate matching (typically 9600 or 19200 bps) on access control panel before field deployment to avoid credential read timeouts

For security integrators managing credential format standardization across multiple facilities, the 921PHRTEK0033B's PIVCLASS compliance and multi-protocol support justify the transition cost. The reader's terminated 485FDX configuration and FIPS encryption option deliver enterprise-grade reliability without requiring separate encryption appliances.