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Connect a video device using Power-Over-Ethernet (PoE)

Power-over-Ethernet (PoE) devices can provide and receive power through an Ethernet cable's free wires. PoE video devices only require one cable for power and data.

Alarm.com PoE video devices use the IEEE 802.3af standard which is an active PoE standard. For more information about Power over Ethernet, see How does Power over Ethernet (PoE) work with Alarm.com video devices?.

Options for Power-over-Ethernet cameras

Power-over-Ethernet switch or router

A network switch or router that provides PoE and connect the camera to both the Internet and power using only an Ethernet cable.

  • Each PoE port on the switch/router typically provides power and data for one camera. If not, look for ports labeled PoE.
  • Alarm.com cameras use a standard 10/100 Mbps RJ-45 Ethernet connection.
Power-over-Ethernet injector

A PoE injector plugs into an outlet and a router and outputs power and data together to an Ethernet port.

  • Use a PoE injector when the router or switch cannot power its Ethernet ports.
  • One injector is required per camera.
A/C adapter and Ethernet Connection

Power can be provided to PoE capable cameras using a separate A/C power adapter sold by Alarm.com (ADC-VACC-PWR-VC101). The camera can be connected to the Internet using a standard Ethernet connection to a router or network switch.

ADC-W110 PoE to Wi-Fi Bridge

The ADC-W110 bridges wired PoE cameras to Wi-Fi networks. The ADC-W110 plugs into an outlet within range of the Wi-Fi network and connects to a video device with an Ethernet cable.

  • It provides a PoE connection for one PoE camera.
  • This device is available from Alarm.com. For more information about the ADC-W110, see PoE to Wi-Fi Bridge (ADC-W110).
4MP Outdoor Floodlight Camera (ADC-V729/V729AC/VC729P)

Unlike other Alarm.com PoE cameras, the ADC-VC729P requires a PoE++ compatible switch or injector to receive sufficient power. Standard PoE and PoE+ rated power supplies cannot provide the required 48W needed for the ADC-VC729P and the camera will not function while connected to a PoE power supply of that rating. 

Alarm.com sells a compatible PoE++ injector (TL-PoE170S), as well as a bundled ADC-VC729P and TL-PoE170S together (ADC-VC729P-BNDL).

Options for non-Power-over-Ethernet cameras

Power-over-Ethernet splitter

A PoE splitter connects to a powered Ethernet cable and splits the data and power into an Ethernet cable for data and a 2.1 mm plug for power.

Power-over-Ethernet injector and splitter combination

If the camera and router are incompatible with PoE, a PoE injector and splitter combination can be used for a flexible power installation.

  • The injector connects to an outlet and an unpowered Ethernet cable then combines them into a powered Ethernet cable.
  • The splitter connects to the powered Ethernet cable then splits it into an Ethernet cable for data and a 2.1 mm plug for power.

For indoor applications, the other cameras can use products like the AIR802 Passive PoE injector to simplify DC power wiring.

The following is a visual of a PoE splitter with a camera:

PoE splitter.png

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