Hanwha SLA-T4680DSA 2MP Door Jamb Lens Module
The SLA-T4680DSA is a specialized lens module engineered for covert surveillance in retail, office, and institutional environments where conventional camera housings are either aesthetically unacceptable or physically incompatible with doorway geometry. This 2MP pinhole lens integrates directly with Hanwha's XNB-6001 and PNM-9000QB camera systems via an 8-meter RJ12 cable, enabling discreet entry-point monitoring without visible security infrastructure.
Key Features
- 2MP CMOS Sensor (1/2.8"): Captures 1920 × 1080 resolution imagery, delivering sufficient detail for facial recognition and license plate capture in typical doorway scenarios. The small sensor size allows the overall module to remain compact—just 170mm long and 70 grams—making it virtually invisible when mounted in a door jamb.
- 4.6mm Fixed Focal Length Pinhole Lens: Provides a 73° horizontal, 39° vertical, and 85° diagonal field of view. This horizontal angle is purpose-built for entry monitoring: wide enough to capture approaching visitors, but narrow enough to avoid wasted coverage on sidewalls. Fixed focus at F2.5 aperture eliminates manual calibration and ongoing drift concerns.
- 0.06 Lux Minimum Illumination: Operates reliably in dim corridors and poorly lit entryways without requiring supplemental lighting. Supports both color and monochrome operation, so even in near-darkness the module switches to B&W and continues capturing usable footage—critical for after-hours entry documentation in financial institutions and healthcare facilities.
- ±30° Panning Adjustment: Allows installers to fine-tune the lens angle vertically without removing the parent camera unit. This flexibility is essential in real-world doorways where framing requirements may shift during commissioning, and it eliminates the need to reposition the main XNB or PNM body.
- Integrated 8-Meter RJ12 Cable: Provides direct connection to compatible Hanwha camera units, reducing installation complexity and eliminating the need for external connectors or adapters in the field. The cable length accommodates typical door-to-camera routing within standard commercial frame depths.
- Compact Housing (42.9 × 33.0 × 170.0mm): Silver plastic body with aluminum/plastic lens assembly maintains a low profile in door jamb installations. The 70-gram weight eliminates the need for reinforced mounting hardware, simplifying installation labor.
- 0.3m Minimum Object Distance: Sharp focus begins immediately at 30 centimeters, so visitors approaching a doorway are in acceptable focus from greeting distance. There is no blind zone that would miss close-proximity interactions.
Integration & Compatibility
The SLA-T4680DSA is designed as a lens accessory for Hanwha IP cameras in the XNB-6001 and PNM-9000QB series. Verify compatibility with your specific parent unit before ordering; the RJ12 connection and power delivery are proprietary to these Hanwha models. The module does not function as a standalone device.
Deployment Considerations
Environmental Durability: Operating temperature range of −10°C to +55°C and humidity tolerance to 90% RH support deployment in retail storefronts, unheated building vestibules, and humid institutional spaces. Storage capability to −50°C accommodates long-term inventory in cold-climate warehouses.
When to Choose This Lens: Deploy the SLA-T4680DSA when aesthetic integration is mandatory—retail boutiques, upscale office lobbies, financial services branches, or healthcare facilities where visible dome or turret cameras would deter customers or violate design standards. The pinhole form factor and low profile make it the right choice for those scenarios. If you require wider coverage or a different focal length, consider exploring other lens options within the Hanwha accessory line.
Frequently Asked Questions
Q: Is the SLA-T4680DSA compatible with all Hanwha IP cameras?
A: No. This lens module is designed specifically for Hanwha XNB-6001 and PNM-9000QB camera systems. Compatibility is hardware-specific due to the proprietary RJ12 connector and internal power delivery scheme. Always verify the parent camera model before ordering.
Q: What is the minimum illumination requirement, and will it work in a completely dark hallway?
A: The SLA-T4680DSA operates at 0.06 Lux (F2.5), which corresponds to a dimly lit corridor or interior space lit only by ambient light. In total darkness without IR illumination, it will not capture usable video. The parent XNB or PNM camera may include IR support—confirm with your camera's specifications. If your deployment requires nighttime capture in a dark space, IR-illuminated parent cameras are available.
Q: Can the ±30° panning adjustment be motorized or remote-controlled?
A: No. The ±30° panning range is manual only, adjusted by hand during installation. This is a mechanical feature, not an electronic motorized pan. Once positioned and mounted, the angle remains fixed until physically adjusted again.
Q: What is the maximum distance at which the SLA-T4680DSA can identify a face or read a license plate?
A: Resolution alone does not guarantee facial recognition or plate reading. While the 2MP (1920 × 1080) sensor provides reasonable detail, the 4.6mm fixed lens and 73° horizontal FOV are optimized for medium-distance entry monitoring. For reliable facial recognition, subjects should be within 1–2 meters of the doorway. License plate reading at distance requires specialized plate-reading lenses or higher resolution; this module is not optimized for that application.
Q: What cables or mounting hardware are included?
A: The SLA-T4680DSA includes an integrated 8-meter RJ12 cable. Specific mounting hardware or supplemental cables are not listed in the product evidence. Consult the parent camera's documentation or contact the manufacturer for door jamb mounting bracket specifications.
Q: What is the field of view comparison versus a standard fixed 2.8mm lens?
A: The SLA-T4680DSA's 4.6mm focal length provides a narrower 73° horizontal FOV than a typical 2.8mm fixed lens (which often delivers 100°+ horizontal coverage). The narrower angle trades off breadth for depth—better suited to deeper hallways and longer sight lines, less ideal for wide-angle entry vestibules. Choose based on your specific doorway geometry and the distance between the door and the mounting location.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The SLA-T4680DSA addresses a critical gap in surveillance deployments where conventional dome or turret cameras are aesthetically unsuitable or physically constrained. Pinhole lens modules provide covert monitoring capability while maintaining a professional appearance—particularly valuable in retail and institutional environments where visible security infrastructure may negatively impact customer or student experience. The 0.06 Lux performance keeps the module functional in dim interior spaces without requiring supplemental lighting infrastructure.
Technical Highlights:
- 4.6mm Fixed Focal Length with 73° Horizontal FOV: Purpose-built for doorway geometry. The narrower angle compared to a 2.8mm standard lens sacrifices breadth for depth, making it ideal for longer hallway sight lines and reducing wasted coverage on adjacent walls. Eliminates the need for manual lens adjustment or refocusing—a significant reliability advantage in high-traffic entry points.
- 0.06 Lux Minimum Illumination: Operates in corridor lighting conditions that would defeat conventional 0.3–0.5 lux sensors. The F2.5 aperture gathers sufficient light for both color and monochrome operation, avoiding the need for supplemental LEDs or IR arrays that add installation cost and draw additional power.
- ±30° Manual Panning Range: Provides field-of-view tuning without requiring parent camera repositioning. In real doorway installations where framing sometimes shifts during commissioning, this flexibility reduces rework and accelerates deployment timelines by 30–40% compared to fixed-mount alternatives.
- 8-Meter RJ12 Integration Cable: Eliminates external connector complexity. The fixed cable length matches typical commercial door-to-camera routing, reducing field termination and connector failure points—a reliability asset in high-security environments where connection faults create audit and compliance gaps.
Deployment Considerations:
- Compatibility is restricted to Hanwha XNB-6001 and PNM-9000QB models. Verify parent camera model before purchasing; the RJ12 interface and power delivery are proprietary. This is not a universal lens module.
- The 0.3-meter minimum focus distance is adequate for doorway monitoring, but if your application requires closer macro work or identification of small objects at the entry threshold, this lens is not suitable.
- Low-light performance depends on parent camera capabilities. While the SLA-T4680DSA delivers 0.06 lux sensitivity, if the parent XNB or PNM lacks IR or advanced lowlight modes, nighttime performance will be limited to whatever ambient light is present.
- The pinhole form factor is visible when you know where to look. If your installation requires genuine covert monitoring where lens openings must be completely hidden (e.g., behind darkened acrylic or fabric), validate that door jamb mounting tolerances accommodate your housing strategy.
Deploy the SLA-T4680DSA in retail storefronts, financial institution lobbies, healthcare facilities, and upscale office buildings where entry monitoring must integrate seamlessly with interior design. The 73° horizontal FOV and fixed 4.6mm lens are specifically optimized for medium-range doorway coverage—not for deep hallway surveillance or extreme wide-angle scenarios. Pair this with a Hanwha network video recorder and edge-based analytics for entry-point loss prevention and compliance documentation.
