signal protection
2.10.2 POE Outdoor 4KV Lightning Protection Scheme
Advantage: This plan is designed for surge protection of POE network ports used outdoors. It adopts a secondary protection approach that ensures reliable operation, maintains signal integrity at high temperatures, and meets the IEC61000-4-2 standard, level 4, with a contact discharge rating of 30kV and air discharge rating of 30kV. The plan also complies with the IEC61000-4-5 standard (10/700μs, 40Ω, 4kV, ±5 times), using LMBJ58CP4 specifically designed for POE 48V power supply, ensuring high-temperature transmission without packet loss.








