L2 Managed Switch
3333Use 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 self 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.
Grounding Terminal | Equipotential Bonding Cable | Ethernet Cable |
Signal Lightning Arrester 
Device
FFFFFFFFFFFFLightning Arrester Connection
Note:
■■ Signal lightning arrester is not provided with our product. If needed, please self purchase it.
■■ The SFP ports performe transmission by optical fiber which is immune to electric conduction. Therefore, 3.4 Use Lightning Arrester is not appropriate for SFP ports but only applies to RJ45 ports.
Lightning Protection 
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