TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 Installation Guide - Page 17

L2 Managed Switch 3.4 Use Lightning Arrester Power lightning arrester and signal lightning arrester are used for lighting protection. Power lightning arrester is used for limiting the voltage surge due to a lightning. If an outdoor AC power cord should be directly connected to the device, please use a power lightning arrester. Note: Power lightning arrester is not provided with our product. If needed, please purchase it. Signal lightning arrester is used to protect RJ45 ports of the device from lightning. When cabling outdoors, please install a signal lightning arrester before connecting the cable to the device. When purchasing or using a signal lightning arrester, please observe the following rules: ■■ The port rate of the signal lightning arrester should match the rate of the desired port on the device. If it is not matched, this signal lighting arrester will not work. Purchase a standard lightning arrester. ■■ Install signal lightning arrester near the protected device and connect it to the ground via a shorter ground cable. T2500-28TC Grounding Terminal Signal Lightning Arrester Equipotential Bonding Cable Device Ethernet Cable Figure 3-4 Lightning Arrester Connection Note: Signal lightning arrester is not provided with our product. If needed, please purchase it. Lightning Protection 12