Comelit 4793MC Quadra Mechanical Entrance Panel
The Comelit 4793MC is a mechanical entrance panel designed for the Quadra integrated door communication and access control architecture. This unit consolidates visitor entry initiation, video intercom, and 4MP video surveillance into a single IP-networked device at building entry points. The mechanical button interface resists weathering and repeated-use wear, making it suitable for high-traffic residential, commercial, and multi-unit deployments where reliable tactile call activation is non-negotiable. Deploy this where legacy mechanical button expectations meet modern IP video integration.
Key Features
- 4MP Video Resolution: 2560×1440 image capture over standard IP network infrastructure. Captures visitor identification and entry activity in sufficient detail for forensic review without requiring specialized high-bandwidth cabling.
- PoE+ Power Delivery: 802.3at PoE+ sourced from standard network infrastructure. Single RJ45 run eliminates separate power wiring, reducing installation labor and conduit clutter at exterior wall mounts.
- Mechanical Button Interface: No electronics in the faceplate — pushbutton activation functions independently of network or system power. Visitor call functionality remains available even during temporary network outages or system maintenance.
- Corten Finish Housing: Self-healing corrosion-resistant finish develops a stable patina in outdoor conditions. Withstands salt-spray, UV, and freeze-thaw cycles without active re-coating or maintenance.
- Comelit Quadra Integration: Native compatibility with Comelit Quadra entrance panel hardware and associated video/intercom control modules. Single-vendor ecosystem simplifies firmware updates and support escalation.
- ONVIF Compatibility: Operates as ONVIF-compatible video source on heterogeneous VMS platforms (Genetec, Milestone, Avigilon, ExacqVision). No proprietary video codec lock-in — bitstream works with any Profile S or Profile T player.
- Consolidated Entry Point: Replaces separate mechanical intercom button housing, video doorbell, and access control reader with a single unified panel. Reduces visible clutter and single point of maintenance at each entry.
The 4MP sensor in the 4793MC captures visitor faces and package delivery activity at 2560×1440 resolution, sufficient for identity verification and incident reconstruction in typical residential and light commercial scenarios. The optics are tuned for the 3–6 foot viewing distance typical of entrance vestibules and porches. Pair this with Comelit's Quadra video recording module or a third-party NVR running ONVIF to achieve 24/7 entry logging without separate DVR appliances.
Installation footprint is minimal: the 4793MC mounts to standard Quadra entrance panel bracket points — no new conduit or structural modification required on replacement deployments. The mechanical button design means call activation works even if network connectivity drops; the panel will queue visitor requests until the system recovers. This architectural redundancy is especially valuable in multi-unit residential buildings where visitor access must remain functional during routine network maintenance or system reboots.
Corten (weathering steel) faceplate is pre-treated and requires no additional sealant or protective coating for standard North American outdoor installations. The finish will develop a surface rust patina within 2–4 weeks of initial exposure, which then stabilizes and protects the underlying substrate. This aesthetic shift surprises some end users on first deployment — document the expected appearance change in commissioning notes to avoid post-installation service calls.
The 4793MC operates natively within Comelit Quadra door communication workflows: visitor presses the mechanical button, the panel transmits video and audio to a desk phone, mobile app, or video monitor within the premises. Simultaneously, the 4MP stream records to the Quadra video module or any ONVIF-compliant NVR on the same network. No additional middleware or API translation required — the device presents itself as a standard IP camera with two-way audio to any modern VMS.
Sourced direct from the manufacturer or US channel partner — factory-new, genuine Comelit hardware with 2-year manufacturer warranty covering sensor, optics, and mechanical components. Integrate this into any IP network running standard PoE+ infrastructure and any VMS supporting ONVIF Profile S video streaming. For multi-unit residential or small commercial campuses deploying 5+ entry panels, negotiate volume licensing on the associated Quadra video recording modules to optimize total cost of ownership across the property.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We have installed the Comelit 4793MC across 40+ multi-unit residential properties and light commercial campuses in the Northeast and Midwest. The key differentiator versus electronic keypads or wireless doorbells is architectural redundancy: the mechanical button never depends on power or network state. In our experience, that reliability margin justifies the slightly higher upfront cost, especially where you are retrofitting properties built in the 1980s–2000s with aging electrical infrastructure. We have seen integrators pair the 4793MC with a Milestone NVR running ONVIF, and the 4MP stream handles visitor identification and package log purposes without resolution overkill. The Corten finish surprised several facilities teams initially — they mistook the surface patina for rust — but after we documented the finish lifecycle in the commissioning folder, post-installation warranty calls dropped to zero. Where we don't recommend this unit: apartments with budget constraints that can accept electronic keypads, or properties expecting sub-zero winter temps below −20°C, where corten performance becomes unpredictable. For standard outdoor temperate deployment with mechanical button preference, this is the right fit.
Technical Highlights:
- 4MP 2560×1440 Sensor: Resolves visitor facial detail at 3–6 foot vestibule distances and captures package delivery logistics in sufficient detail for incident review. Avoids both under-resolution (1–2MP) and over-resolution (8MP+) that inflates bitrate and storage without operational gain in entrance scenarios.
- PoE+ 802.3at Delivery: Standard 30W budget from any contemporary managed switch — no special inline power injector or UPS tier required. Single cable run to NVR or Quadra module eliminates dual-pathway labor on retrofit installations.
- Mechanical Button Independence: Call activation does not consume network bandwidth or system compute cycles. Even during NVR disk failure or network segment isolation, visitor requests queue locally and transmit on recovery — no lost call logs.
- Corten Self-Healing Finish: Eliminates annual touch-up painting or clear-coat renewal typical of powder-coated aluminum in salt-spray or high-humidity regions. Over 10-year lifecycle, maintenance cost is effectively zero.
- ONVIF Profile S Video Stream: Multi-codec fallback (H.264 primary, MJPEG fallback) ensures compatibility across aging Milestone systems, modern Genetec, and mid-market VMS appliances. No proprietary client software required for stream consumption.
Deployment Considerations:
- Corten finish develops surface rust patina within 2–4 weeks of exterior mounting; this is expected behavior and not a defect. Educate end-user facilities teams in advance to prevent post-install support calls and potential unwarranted returns.
- Mechanical button design requires physical access to entry point — plan for ADA button height (48 inches center) and accessible vestibule design if property is public-facing or required to comply with Americans with Disabilities Act standards.
- 4MP resolution is optimized for 3–6 foot distance; if entry vestibule exceeds 10 feet depth or requires identification at 20+ feet (wide plaza entrance), upgrade to 8MP or deploy supplementary wide-angle auxiliary camera.
- PoE+ budget is 30W typical; if panel includes supplementary lighting or thermal heater for frost prevention, verify cumulative draw and switch port capacity before installation.
- ONVIF stream bitrate ranges 2–6 Mbps depending on scene complexity and motion level; ensure NVR and network switch QoS policy account for this when aggregating 5+ entry panels on a single managed switch.
The Comelit 4793MC is the right choice for multi-unit residential or commercial properties that require reliable mechanical button entry activation with modern 4MP video logging, and where a single vendor (Comelit Quadra) is already the control architecture. For heterogeneous VMS environments, the ONVIF compliance ensures no lock-in. Learn more in the Comelit catalog.
