High-reliability outdoor lightning protection for Ethernet lines

December 01, 2014 // By Graham Prophet
Microsemi has introduced the PD-OUT/SP11, a high-reliability outdoor-rated lightning protection device supporting both Power-over-Ethernet (PoE) and non-PoE enterprise installations.

The Microsemi PD-OUT/SP11 is a single-port device, protecting all eight wires of the Ethernet cable while enabling data streams of up to 10/100/1000 Mbps and PoE levels up to 95W. The device is set up for outdoor devices such as security cameras and wireless LAN access points (AP) and features lightning protection up to 10 kV.

The PD-OUT-SP11 is a surge protection device designed to protect indoor Ethernet networks from lightning that may come from the outdoor environment through the Ethernet cable. The product is enclosed in a metal weatherproof enclosure, meeting IP66. It can be mounted on a wall or a pole. The SP device can be installed before the cable enters the building to protect the indoor network or immediately adjacent to the wall- or pole-mounted outdoor device (i.e., WLAN AP, IP camera, etc.).

• Supports data rates of up to 1Gbps

• All eight lines protected including PoE

• Waterproof (IP66)

• Surge handling capability: 10 kV, 5 kA to ground in 80/20µsec; 800V, 100A PoE

• Regulatory compliance: REACH, RoHS, WEEE, IEC60529 level IP66, NEMA 250, level 4x

• Surge compliance: IEC61643-21, GR1089, ITU-T K.45

• Safety approvals: UL 497B

According to market research firm Infonetics, around 300,000 outdoor WLAN APs are expected to ship in 2014, growing to 650,000 in 2018. “Historically there has been a lack of awareness about the danger of lightning to enterprise solutions and the availability of a certified outdoor protection device. Nearby lightning strikes are much more common than most people think and a strike as far as a mile away can induce a voltage level that can damage expensive outdoor enterprise devices. Without lightning protection, surges also can move quickly along the Ethernet cable and damage expensive indoor network switches,” said Sani Ronen, director of product management for Microsemi's PoE systems. "The PD-OUT/SP11 is designed to provide protection in a flexible solution for all types of outdoor Ethernet installations,