SMLIGHT PoE Injector 48V 24W | Power over Ethernet for PoE Devices

SMLIGHT PoE Injector 48V 24W – Universal Ethernet Power Supply

No power outlet near your sensor, camera, or Zigbee dongle? This PoE injector combines data and power over a single Ethernet cable. You can place devices exactly where you want them, without additional wiring. The injector works with any IEEE 802.3af/at-compatible device, from a Zigbee coordinator to an mmWave presence sensor or IP camera.

Power and Connectivity

The injector delivers 48V DC at a maximum of 24W and complies with IEEE 802.3af/at. Input voltage is universal: 100–240V AC, 50–60 Hz, suitable for any European outlet. The Ethernet speed is 10/100 Mbps via two RJ45 ports.

Connection

Plug the power adapter into the wall socket, connect the DATA IN port to your switch or router, and the DATA+POWER OUT port to your PoE device. Since PoE operates over conductors 4/5 (+) and 7/8 (−), a full 8-conductor (Cat5e or higher) Ethernet cable is mandatory. A 4-conductor cable will not provide power and will not work.

Expansion and Accessories

The injector is compatible with a wide range of smart home hardware. Use it for SMLIGHT SLZB dongles as a Zigbee coordinator, the Apollo Automation R PRO-1 as a PoE mmWave presence sensor, the Sensy E1 Pro Multi-Sense as an all-in-one environmental sensor, or a PoE IP camera in your security setup. For multiple PoE devices simultaneously, a PoE switch is more efficient; this injector is most practical for a single device in a specific location.

Safety and Reliability

The injector features automatic protection against overvoltage, short circuits, and excessive current draw. In case of a fault, the protection automatically recovers without manual reset. Operating temperature ranges from 0°C to 40°C.

Home Assistant

The PoE injector does not have its own HA integration; it solely supplies power to the connected device. The entities and integration you get depend on the connected device:

• SMLIGHT SLZB dongle: automatically detectable via the SMLIGHT SLZB integration, fully local without cloud. Pair via ZHA or Zigbee2MQTT to the serial port over the network.
• Apollo Automation R PRO-1: via ESPHome integration in HA. Entities: presence detection, distance, motion zone, RSSI.
• Sensy E1 Pro Multi-Sense: via ESPHome or proprietary integration. Entities: temperature, humidity, CO², presence.
• IP camera: via ONVIF or manufacturer-specific integration, including Frigate NVR support.

Pairing Procedure for SMLIGHT SLZB Dongle

• Connect the 8-conductor Cat5e cable between the injector and the SLZB dongle.
• Connect the DATA IN port of the injector to your switch or router.
• Plug the injector into the power outlet and wait for the dongle to obtain an IP address via DHCP.
• In HA, go to Settings > Devices & Services > Add Integration > SMLIGHT SLZB and enter the IP address.
• Pair ZHA or Zigbee2MQTT to the dongle's serial port over the network.

Points of Attention

• An 8-conductor Ethernet cable (Cat5e or Cat6) is mandatory; 4-conductor cables are not compatible.
• Ethernet speed is a maximum of 100 Mbps; Gigabit is not supported.
• Not managed PoE: no on/off switch or SNMP management available.
• Suitable for one device at a time; for multiple devices, use a PoE switch.
• Use in a well-ventilated area; maximum operating temperature is 40°C.

Box Contents

• 1x SMLIGHT PoE Injector 48V 24W

Compatibility

Compatible with all IEEE 802.3af/at devices, including SMLIGHT SLZB-06, SLZB-06M, SLZB-06MG24U, SLZB-MR1 to MR4, Apollo Automation R PRO-1, Sensy E1 Pro Multi-Sense, IP cameras, VoIP phones, and Wi-Fi access points with PoE support.

Specifications

Frequently Asked Questions

Which Ethernet cable do I need?

An 8-conductor Ethernet cable of at least Cat5e is mandatory. PoE uses all four pairs of conductors. A 4-conductor cable will not provide power and will not work with this injector.

Do I need a hub or additional equipment?

No, the injector works standalone. Connect it to a regular network port on your router or switch. A PoE switch is not required for a single device.

Does this injector also work with the Apollo Automation R PRO-1 or Sensy E1 Pro?

Yes, both the Apollo Automation R PRO-1 and the Sensy E1 Pro Multi-Sense support PoE via IEEE 802.3af/at. With this injector, you can place them flexibly at any location with an Ethernet connection, without a separate power outlet.

Can I connect multiple devices simultaneously?

No, the injector has one output port and is suitable for one device at a time. For multiple PoE devices, use a PoE switch. Also check out our motion sensors and other sensors for more PoE-compatible options.

Does the injector work with Home Assistant?

The injector itself has no HA integration. You connect the attached device via its corresponding integration: SMLIGHT SLZB for dongles, ESPHome for Apollo and Sensy sensors, or ONVIF for IP cameras. Everything works completely locally. See also the Home Assistant collection.

What do I do if the connected device doesn't power on?

First, check if your cable is 8-conductor. Then, verify that the DATA IN port is connected to an active network port. Some switches have PoE disabled by default; activate it via your switch's management interface. Finally, check if the device supports the 802.3af/at standard.

✅ slimhuisje.nl — Immediately available and suitable for almost any PoE device in your smart home. Do you want to know if your sensor or camera is compatible? Our customer service will help you quickly.