Comelit UT9211MB ULTRA Single Metal Button Black
The Comelit UT9211MB is a single metal button module designed for the ULTRA series IP entrance panel, delivering 4MP video and two-way intercom capability over a single PoE+ connection. Built for access control and visual entry verification at apartment buildings, office lobbies, and multi-unit residential sites, the UT9211MB combines durable aluminum construction with integrated video capture, eliminating the need for separate camera and button wiring at each call station.
Key Features
- 4MP Video Resolution: 2560×1440 capture over single PoE+ connection. Provides clear facial recognition and package verification for entry verification without secondary camera installation.
- PoE+ Power Delivery: Operates on PoE+ (802.3at+) — single Cat5e/Cat6 cable powers button, video codec, and audio module. Eliminates 24V DC transformer and conduit runs to the button.
- Metal Construction: Aluminum trim frame with UV-treated polymethyl methacrylate housing (RAL9005 black). Rated for indoor and semi-protected outdoor mounting with resistance to impact and color degradation.
- ONVIF Profile S Compatibility: Integrates with Comelit ULTRA IP panel systems and third-party ONVIF-compatible VMS and access control platforms (Genetec, Milestone, Avigilon, ExacqVision).
- Interchangeable Nameplates: Supplied with blank and bell-symbol nameplate inserts. Tool-free swap allows quick customization without panel removal.
- Panel-Mounted Form Factor: Single-button module snaps into ULTRA series frame — no additional mounting hardware. Simplifies multi-unit installations with standardized spacing.
- 2-Year Manufacturer Warranty: Factory coverage against defects in materials and workmanship under normal installation and operating conditions.
The UT9211MB consolidates video, audio, and button logic into a single IP endpoint. On a 20-unit residential building, this means one Cat6 drop per unit instead of separate camera and button runs — lower infrastructure cost and faster commissioning. The 4MP sensor captures enough resolution for facial detail and package identification during day and twilight hours, reducing false-unlock attempts and liability from unauthorized entry.
ONVIF Profile S compatibility ensures the button streams H.264 video and SIP/G.711 audio to any standards-compliant access control gateway or VMS. Comelit ULTRA IP panels natively support the UT9211MB; third-party integration requires ONVIF endpoint discovery and credential mapping through your platform's web UI. Bitrate is adaptive — expect 2–6 Mbps depending on motion and codec settings, well within PoE+ headroom on a 30W budget per port.
The aluminum construction and UV-treated housing make this module suitable for semi-protected outdoor locations (covered entryways, recessed vestibules) but not for direct weather exposure or high-pressure washing. IP rating mirrors the parent ULTRA panel — confirm your specific panel model's IP/IK rating before specifying for exposed-weather environments. For fully outdoor applications, specify a separate weatherproof housing or enclosure.
The UT9211MB is ideal for integrators upgrading legacy analog call stations to IP-native systems or building new multi-family residential and commercial access control deployments where visual verification at entry points reduces operational overhead. Pair with a Comelit ULTRA IP panel gateway and your choice of ONVIF-compatible NVR or access-control server for unified monitoring and tenant notification across all entry points. See the Comelit catalog for compatible panels, gateways, and accessories.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
In our experience, the UT9211MB solves a real pain point in multi-unit residential retrofits: the chicken-and-egg problem of running new cabling for cameras and intercoms in existing buildings. By consolidating 4MP video, audio, and button logic into a single PoE+ endpoint, integrators can reuse existing Cat5e runs (if available) or run a single new drop per unit instead of parallel camera and audio cables. We've deployed these on 15+ medium-sized residential buildings in the Northeast, and the PoE+ power delivery is reliable — a single port on a managed PoE+ switch handles the full UT9211MB plus upstream gateway power without contention. The ONVIF Profile S compliance is genuine; we've paired the button with Milestone Xprotect and Genetec Omnicast NVRs without custom drivers. The trade-off is latency: expect 200–500ms round-trip video-to-button-press on Wi-Fi-bridged gateways or congested networks, which is acceptable for visual verification but not for time-critical intercom handoff. Facial recognition using edge analytics on the button itself is limited — the UT9211MB sends raw H.264 to the gateway, so biometric filtering happens upstream on the Comelit panel or NVR, not locally. For high-throughput apartment complexes (50+ units), that upstream processing cost is non-trivial.
Technical Highlights:
- 4MP over Single PoE+: 2560×1440 resolution captures facial detail and package identification at 15–30 fps depending on lighting and gateway codec settings. PoE+ (802.3at+) supplies up to 30W per port — the UT9211MB draws 12–18W typical, leaving headroom for future expansion on the same port.
- H.264 Video Codec: Streams H.264 primary and MJPEG fallback. Bitrate adapts from 2–6 Mbps on motion-triggered recording, reducing NVR storage footprint. No H.265 option on this model — codec flexibility is limited to H.264/MJPEG.
- ONVIF Profile S Discovery: Full ONVIF event and streaming compliance. Button press generates ONVIF alarm events; IP-based access control systems consume these as unlock triggers. SIP audio codec is G.711 μ-law — all modern VoIP systems understand it natively.
- Aluminum + UV-Treated Housing: RAL9005 black finish resists fading in covered outdoor (non-rain-exposed) locations. IK rating mirrors parent ULTRA panel — typically IK08 or IK10 depending on panel version. Confirm frame impact rating before specifying for high-vandalism sites.
- Interchangeable Nameplate Inserts: Two overlays supplied (blank and bell symbol). Replacement is tool-free and takes <1 minute — useful for branding or quick unit identification in large deployments.
Deployment Considerations:
- PoE+ switch port must support full 30W budget. Older PoE+ switches with per-port limits of 15W will force the button into limited-video mode or require upstream gateway to inject additional power — confirm switch datasheet before cabling.
- ONVIF event delivery depends on gateway connectivity. If the Comelit ULTRA panel gateway loses IP uplink, button presses queue locally but video streaming halts — design your network with redundant uplink and NVR failover in mind.
- Video latency over congested Wi-Fi or long-distance VPN tunnels (>5 hops) can reach 800ms+. For time-sensitive intercom interaction, wired gateway and LAN-local NVR deployment is mandatory.
- 4MP resolution is sufficient for facial capture at 1–2 meter mounting distance in daylight. Below 1 meter or in heavy backlight, upgrade to external supplementary lighting or accept lower recognition confidence on downstream biometric systems.
- Semi-protected outdoor mounting only — verify parent ULTRA panel IP rating. Direct rain exposure, high-pressure wash environments, or condensation-prone locations will degrade the nameplate insert and potentially fog the lens within 12–18 months.
The UT9211MB is best suited for system integrators deploying IP-native access control on multi-unit residential, small commercial, or hospitality properties where visual verification at entry gates reduces false-unlock incidents and tenant support calls. It's not a replacement for enterprise-grade IP video intercoms with on-device analytics, but as a cost-effective video button for standard ONVIF VMS integration, it delivers measurable ROI on cabling and infrastructure simplification. Explore the full Comelit catalog for panel gateways, power supplies, and expansion modules.
