====== Powering Unipi units through PoE ====== This tutorial describes the connection of Unipi controllers using 802.3at PoE+ splitter. The splitter must be supplemented and powered by a PoE injector or any PoE switch. This connection is useful especially if you need to place the controller in locations lacking a conventional 110 / 230 V~ socket (ie. sensor stations). This tutorial will show you how to power the Unipi over Ethernet cable while retaining local network connectivity. ;;# Patron \\ Neuron \\ Gate \\ Axon ;;# == Components used in the tutorial == * Cat6 network cable (RJ45) * conductor (Cu, 0.5mm2) * Planet IPOE-162S PoE splitter ([[https://www.unipi.technology/ipoe-162s-splitter-p432?categoryId=15|e-shop link]]) * Planet IPOE-162 PoE injector ([[https://www.unipi.technology/ipoe-162-injector-p433?categoryId=15|e-shop link]]) * Unipi controller ==== Connection example ==== {{ :en:automation:unipi_-_injector_a_splitter.png?direct |}} == Planet IPOE-162S == - set the splitter for 24 V⎓ voltage using the onboard switch - connect the splitter’s V+ clamp to the PLC’s 24V clamp - connect the splitter’s V- clamp to the PLC’s GND clamp - using the network cable, connect the splitter’s **Data Out** port with the controller’s **ETH** port - plug an 802.3at PoE+ compatible network cable into the splitter‘s **PoE In** port == Planet GSD-908HP == - connect **Ethernet+DC** port to the **PoE In** port on the splitter via a suitable network cable - connect the WAN network cable into the **Ethernet** port ==== Technical data ==== Using a single splitter to power multiple controllers is not recommended! \\ \\ {{ :en:automation:switch_splitter-table1_en.png?direct&nolink |}} \\ {{ :en:automation:switch_splitter-table2_en.png?direct&nolink |}} \\ {{ :en:automation:switch_splitter-table3_en.png?direct&nolink |}} \\ ==== Calculating the maximum load – examples ==== The calculations below are applicable for GSD-908HP PoE+ switch and IPOE-162S PoE+ splitter. \\ 1) Maximum number of connected Unipi Neuron L403 controllers - maximum load of the Neuron L403 = 24 W - maximum load of the splitter = 25 W * 25 W – 24 W = 1 W * the resulting value is a positive number = suitable - maximum load of the switch = 100 W * 100 W ⁄ 24 W = 4,166 __Based on these calculations, we can **safely use 4 PoE+ powered Neuron L403's**__ \\ 2) Maximum number of connected Unipi Patron S107 - maximum load of the Patron S107 = 12 W - maximum load of the splitter = 25 W * 25 W – 12 W = 13 W * the resulting value is a positive number = suitable - maximum load of the switch = 100 W * 100 W ⁄ 12 W = 8,333 __Based on these calculations, we can **safely use 8 PoE+ powered Patron S107's**__ \\ 3) Various combinations of Unipi models - maximum power input: * Patron L207 -> 17 W (1×) * Patron M207 -> 14.5 W (2×) * Patron S107 -> 12 W (remaining) - maximum load of the splitter = 25 W * 25 W – 12 W = 13 W * 25 W – 14.5 W = 10.5 W * 25 W – 17 W = 8 W * the resulting value is a positive number = suitable - maximum load of the switch = 100 W * 100 W – 17 W – 2 × 14.5 W = 54 W * The remaining: 54 W ⁄ 12 W = 4.5 __Based on these calculations, a single switch **can power 1× Patron L207, 2× Patron M207 and 4× Patron S107**__