DSC HS2128NK Keypad Reader
The DSC HS2128NK is a UL/ULC listed keypad reader designed for professional security integration in access control systems. This hardwired reader delivers reliable credential entry functionality with regulatory compliance suitable for commercial and institutional deployments requiring certified access control hardware.
Overview
The HS2128NK operates as a dedicated keypad reader within DSC control system environments. Engineered for stationary installation, this reader provides tactile credential input with full UL/ULC and CSFM certification, meeting stringent safety and security standards for integrated alarm and access control applications. The unit integrates with DSC control panels and third-party compatible systems requiring standard keypad input modules.
Key Features
- UL/ULC Listed: Full Underwriters Laboratories and UL Canada certification ensures compliance with recognized security installation standards
- CSFM Certified: California State Fire Marshal approval for use in licensed security installations and monitored system deployments
- Included Power Supply: 16.5 VAC transformer supplied with unit, eliminating external power procurement and reducing installation labor
- Standard Operating Temperature Range: Rated 0°C to 49°C (32°F to 120°F) for reliable indoor and controlled-environment deployment
- Compact Form Factor: Dimensions of 297 x 298 x 78 mm (11.7 x 11.7 x 3.07 inches) fit standard wall plate cutouts and mounting enclosures
- Hardwired Integration: Direct connection to DSC control panels via terminal block wiring for stable, supervised credential entry
Integration & Compatibility
The DSC HS2128NK keypad reader integrates directly with DSC PowerSeries and professional-grade control panels that support keypad input modules. The 16.5 VAC transformer supply ensures compatibility with standard DSC panel power loops and allows the reader to operate as a supervised peripheral without requiring separate power infrastructure. Installers should verify panel firmware compatibility and keypad addressing protocols with DSC system documentation before procurement.
Physical Specifications
The reader measures 11.7 x 11.7 x 3.07 inches and is designed for flush-mount or surface-mount installation on standard wall surfaces. The compact footprint accommodates residential hallways, office entryways, and commercial foyers without requiring specialized mounting infrastructure. Included transformer eliminates the need for external power conditioning, simplifying rough-in and final installation workflows.
The HS2128NK operates reliably across standard indoor temperature ranges from 32°F to 120°F, making it suitable for climate-controlled commercial facilities, institutional buildings, and residential security applications where environmental consistency is maintained.
Certification & Compliance
UL/ULC listing and CSFM certification confirm that the DSC HS2128NK meets published safety and operational requirements for access control hardware in licensed security system deployments. These certifications are critical for integrators serving monitored accounts, commercial properties, and jurisdictions requiring certified equipment in alarm system installations. Verification of certification status should be confirmed with current DSC technical documentation.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
I spec the HS2128NK when integrators need a UL/ULC-listed keypad reader that ties directly into DSC PowerSeries panels without adding complexity to the power budget. The included 16.5 VAC transformer is a practical touch—you're not sourcing separate wall warts or tapping auxiliary panel outputs, which keeps the install cleaner and reduces troubleshooting down the line. This reader works well in office suites, multi-tenant buildings, and institutional corridors where you need supervised credential entry that meets fire marshal and insurance requirements.
One watch-out: verify your panel firmware supports the addressing protocol before you order. Not all DSC panels handle keypad module expansion identically, and older PowerSeries units may need a firmware update to recognize this reader properly. Also confirm your panel has available keypad zones—some configurations max out quickly if you're already running multiple keypads or expansion modules. The 0°C to 49°C operating range limits you to climate-controlled spaces, so skip this for unheated vestibules or exterior applications.
