12
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 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.
TL-SG5428
Ethernet Cable
Equipotential Bonding Cable
Grounding Terminal
Signal Lightning Arrester
Device
Figure 3-4 Lightning 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
