* Provides complete DC isolation of Ethernet port * Blocks all common-mode surges (most common type) completely * Safely shunts differentail mode surges * Protects POE power input with LC filter and TVS diodes from surges and reverse polarity * LC filter supresses noise and passes clean DC power to Radio or other device * Shielded Connectors pass shield through to Radio or other device * Low insertion loss. Full 100Mbps even when added to a full 100 meter cable run. * Modular weatherproof design * Installs in seconds, protects for years