UniFi Lab 15
No cable to the gate
The client wants a camera at the driveway gate, across the yard from the house. No trench for a cable. Bridge it.
Your job: get the gate camera Online over the bridge, powered from UDB-Pro B's PoE output.
This run: Break A. UDB-Pro B on the gate pillar runs on the adapter from the box.
Lab complete. Link up across the yard, PoE output On, camera Online at the gate.
Gate online, no trenchYard
House to gate · point to pointPoE output Off. Needs PoE+ input.
lab labelUDB-Pro A · house
- Mount
- Front eave
- Line of sight
- Clear
- Paired
- Adopted and paired
UDB-Pro B · gate pillar
- Power
- Included adapter
- PoE output
- Off
- Link
- Up
PoE camera
- Plugged into
- PoE output
- Camera
- Dark
Controls
Good to know · info only
Out of scope for this lab
Why this fails
Not enough power in
The UDB-Pro's PoE output only runs when PoE+ is coming in. On the adapter from the box, plan separate power for the camera, or feed the bridge from a PoE+ injector.
Fix: power UDB-Pro B from a PoE+ injector instead of the included adapter.
Device Bridge
A Device Bridge pair replaces the cable: one end on the network, one end at the gate.
Which bridge
| Item | UDB | UDB-Pro | UDB-Pro-Sector |
|---|---|---|---|
| Where | Indoor | Outdoor (IPX6) | Outdoor |
| Link | Bridges to UniFi WiFi | Point to point, up to 5 km | Point to multipoint, 50+ UDB-Pro clients |
| Ports | 1 GbE | 2 GbE (PoE in, PoE out) | None listed |
| Good for | A room or shed with WiFi coverage | Gate, barn, detached garage | Many outbuildings from one spot |
Glossary
- Device Bridge
- A pair of radios that replaces a cable run. One end on the network, one end at the far side.
- Line of sight
- A clear path between the two ends. Roofs, walls and trees block it.
- PoE output
- A port on the UDB-Pro that powers a PoE device, here the camera. It only runs with PoE+ coming in.
Side by side
lab label| Item | Break A | Break B | Fixed |
|---|
Gear in this lab
- 1 PoE+ switch
- 2 UDB-Pro
- 1 PoE camera
- 1 Included adapter
- 0 PoE+ injector
Counts only, no prices.
Takeaway
Gate online, no trenchClear path, PoE+ in, then the camera runs off the bridge.
A Device Bridge pair replaces the cable: one end on the network, one end at the gate. It needs a clear line of sight, and the UDB-Pro's PoE output only runs when PoE+ is coming in.
- Use the UDB-Pro outdoors. The UDB is an indoor bridge.
- Mount high and clear. Aim the two ends at each other.
- Feed UDB-Pro B from a PoE+ injector if the camera runs off its PoE output.
- Only PoE devices on the PoE output. Turn it off before plugging in anything else.
Gate, barn, or guest house with no cable run? We can bridge it.
Related labs
All labs /labs
A teaching lab, not a quote and not a design for your site. Bridge facts follow Ubiquiti's UDB-Pro and Device Bridge pages. The status lines are lab labels; the app's exact wording for these cases isn't documented.