Design the Ultimate Smart Home from Scratch! Part 7 - Network

About this video

Episode 7 of the designing the ultimate dream smart home series covers the network — the most critical infrastructure in the entire house. I walk through the complete rack build: modem in gateway-only mode, Dream Machine Pro as router and control plane, two Ubiquiti ProMax 48-port PoE switches, dual patch panels, NVR Pro, UNAS Pro storage, Ubiquiti AI Key, a rack server for Home Assistant and Docker, power distribution with redundant power backup units, and remote flex switches in rooms. Then wireless: three Ubiquiti U7 Pro access points for tri-band coverage, and USB Zigbee and Z-Wave dongles for full protocol coverage.

Key takeaways

• PoE over Cat 6A is the right infrastructure choice for any fixed device in a new build. One cable carries both power and data up to 100 meters.
• Patch panels between wall runs and switches are non-negotiable in a properly organized rack. They make cable management, tracing, and future changes dramatically easier.
• The Ubiquiti AI Key extends camera AI beyond native detections — descriptive search, speech transcription, and natural-language alarms. Worth it for a comprehensive camera deployment.
• Redundant power supplies combined with whole-home battery backup ensure the network stays online during outages. Network goes down, smart home goes dark.
• Three access points covering 3,300 sq ft on two floors is the right balance — good coverage without channel saturation. Stagger placement to minimize overlap.

Video walkthrough

1. Design the rack before buying equipment — 42U rack with room to expand. Modem in gateway-only mode → UDM Pro WAN port. UDM Pro to first switch via 10G SFP DAC cable. Two Ubiquiti ProMax 48-port PoE switches for all device connections throughout the home.
2. Use patch panels between wall runs and switches — Each cable run terminates on a patch panel keystone. A short patch cable connects keystone to switch port. Benefits: easy cable tracing, strain relief on wall runs, clean organization. Never terminate solid-core wall runs directly into switch ports.
3. Add dedicated storage and AI processing — NVR Pro (10G SFP) for 30 days of 4K camera storage. UNAS Pro (10G SFP) for file storage and device backups. Ubiquiti AI Key extends camera AI detection: natural-language search, speech transcription, custom alarm logic, and enhanced facial detection.
4. Run a rack server for applications — Dell PowerEdge or equivalent for Home Assistant, Docker containers, and other dedicated workloads. Keeps application processing off the UDM Pro and on purpose-built compute hardware.
5. Power the rack properly — Ubiquiti Power Distribution Pro (16 remotely resettable outlets) for all rack equipment. Ubiquiti Power Backup Units on critical devices (UDM Pro, switches, NVR, NAS) — redundant power supplies that combined with the home's battery backup keep network gear online through outages.
6. Wireless and IoT protocol coverage — Three Ubiquiti U7 Pro access points staggered across both floors for 2.4/5/6 GHz tri-band coverage. Sonoff Zigbee Plus USB3 dongle for Zigbee via Zigbee2MQTT. Zooz 800 Z-Wave dongle for Z-Wave devices if needed. Both connected to the rack server.