Powerline + PoE: Wired Cameras Using Your Electrical Wiring

No Ethernet jacks or coax? Powerline adapters turn your home's electrical wiring into a network connection for a wired baby monitor camera.

No Ethernet, No Coax — Now What?

You want a wired camera for your baby monitor, but your house doesn’t have Ethernet jacks or coaxial cable in the nursery. Maybe it’s an older home, or the rooms you need just weren’t wired for anything but electricity.

Here’s the good news: your house does have electrical wiring running to every room. Powerline adapters use that existing electrical wiring to create a network connection. Pair one with a PoE injector and you’ve got a wired camera setup without running a single new cable.

What Is Powerline Networking?

Powerline adapters send network data over the copper wiring in your walls — the same wires that carry electricity to your outlets. You plug one adapter in near your router and another in the nursery. They create a wired network link between the two rooms using the electrical circuit.

Modern powerline adapters (AV2 / HomePlug AV2) can deliver speeds up to 2 Gbps in ideal conditions. Real-world speeds are lower, but still plenty for streaming a baby monitor camera.

What You Need

  • Two powerline adapters — One near your router, one in the nursery. We recommend the NETGEAR Powerline Adapter Kit (comes as a pair)
  • A PoE injector — Powers your camera over Ethernet. A single-port injector is all you need for one camera
  • A PoE IP camera — We recommend the Amcrest 5MP PoE Camera
  • Short Ethernet cables — To connect adapters to your router and PoE injector
  • An iPhone or iPad with LocalNanny installed

How It Connects

Office / Garage Nursery WiFi Electrical Wiring iPhone Router Powerline Adapter Powerline Adapter PoE Injector Camera

Your router connects via Ethernet to a powerline adapter plugged into a wall outlet. That adapter sends the signal over your home’s electrical wiring to a second powerline adapter in the nursery. The nursery adapter connects to a PoE injector, which provides both network and power to your camera through a single Ethernet cable.

Your iPhone connects to the same router over WiFi. Everything stays on your local network.

Step-by-Step Setup

1. Set Up the First Powerline Adapter (Router Side)

  1. Plug the first powerline adapter directly into a wall outlet near your router — not into a power strip or surge protector (these can filter the signal)
  2. Connect the adapter to your router with a short Ethernet cable
  3. Wait for the power light to turn solid

2. Set Up the Second Powerline Adapter (Nursery)

  1. Plug the second adapter directly into a wall outlet in the nursery
  2. Wait for the link light — once both adapters show a solid connection, your powerline link is up
  3. Most adapter kits are pre-paired out of the box. If not, press the pairing button on each adapter within two minutes of each other

3. Connect the PoE Injector

  1. Connect the powerline adapter’s Ethernet port to the Data In port on the PoE injector
  2. Connect the camera to the PoE Out port on the injector
  3. Plug in the PoE injector’s power supply
  4. The camera will power on within a few seconds

4. Open LocalNanny

Open LocalNanny on your iPhone. Your camera should appear via auto-discovery. Tap to connect, enter the camera’s credentials, and you’re streaming.

Powerline vs. MoCA vs. WiFi

Powerline + PoE MoCA + PoE WiFi Camera
Uses existing Electrical wiring Coaxial cable WiFi signal
Reliability Good Excellent Variable
Speed Moderate (50-200 Mbps typical) Fast (up to 2.5 Gbps) Depends on signal
Setup Easy — plug in and pair Moderate Easy
Best when No Ethernet or coax available Coax outlets in both rooms Strong WiFi, simple setup

Powerline is the fallback option when you don’t have Ethernet jacks or coax outlets. It’s not as fast or consistent as MoCA, but it works in virtually any home — if you have a power outlet, you can use powerline.

Tips

  • Plug directly into the wall — Power strips, surge protectors, and UPS devices can filter the powerline signal and significantly reduce speeds. Always plug adapters directly into wall outlets.
  • Same electrical circuit helps — Powerline adapters work best when both outlets are on the same circuit breaker. They can work across different circuits, but performance may be lower.
  • Avoid noisy appliances — Devices like washers, dryers, and refrigerators on the same circuit can introduce electrical noise. If performance is poor, try a different outlet.
  • GFCI outlets won’t work well — Ground fault outlets (the kind with test/reset buttons, common in bathrooms and kitchens) often block the powerline signal. Use a standard outlet instead.
  • Test before mounting — Set up the camera temporarily to verify the powerline connection is stable before you mount anything permanently.
  • One PoE injector per camera — If you want multiple cameras, use a small PoE switch on the nursery end instead of individual injectors.

When to Consider Other Options

Powerline networking is great for getting a connection where you otherwise can’t, but it has more variability than dedicated wiring. If you find performance isn’t meeting your needs:

  • MoCA is faster and more reliable if you have coax outlets available → MoCA + PoE Guide
  • Structured wiring is the best option if your house has Ethernet jacks → Structured Wiring Guide
  • WiFi may actually be simpler if you have strong signal in the nursery → WiFi Camera Setup

See our full compatible cameras list for more options.