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PoE adapter MikroTik RBPOE 28V
The MikroTik RBPOE 28V is a low-cost passive Power over Ethernet (PoE) adapter designed to deliver 28 V over an Ethernet cable to a single RouterBOARD device. It is intended for situations where reducing cabling is important, such as powering remote network equipment or installations up a tower. The injector receives power from an external source and injects it into the Ethernet line to supply compatible devices.
This passive PoE base unit is compact and simple to install, requiring only a power source and an Ethernet connection to the target device. It supports 28 V PoE output suitable for RouterBOARD devices that accept 10–28 V input, and helps minimize the number of separate power cables required in remote or elevated installations. The design reduces installation complexity and keeps wiring tidy.
Connect an appropriate external 28 V power source to the RBPOE injector input, then use a standard Ethernet cable to connect the injector’s RJ-45 port to the RouterBOARD device’s Ethernet/PoE input. Ensure the target device supports passive PoE at 10–28 V; when using devices that accept within that range, supply should be at least 18 V at the injector to allow for voltage drop over cable runs. Verify polarity and connections before powering up.
Use suitable-gauge cabling and keep cable lengths within practical limits to reduce voltage drop; provide at least 18 V at the injector when powering devices that support 10–28 V to ensure reliable operation at the far end of the cable.
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