PS5712P 12V PoE Splitter separates power and data from IEEE802.3af PoE to supply 12V/1A for non-PoE devices while keeping 10/100M Ethernet active. Supports 37–57V input, RJ45 in/out + DC output, 1500V isolation, and short-circuit/overvoltage protection—ideal for CCTV, Wi-Fi, and network expansions.