The KNFC Series Network Signal Lightning Protection Gate
The HNFC series network signal lightning protection gate is mainly used for lightening protection and over
voltage protection caused by lightening magnetic pulse of web devices such as 10/100Mbps,Switch,Hub,
Router.
KNFC4/RJ45
KNFC4--16/RJ45
Working Conditions
▪ working temperature:-40℃~ +80℃
▪ relative humidity:5％~ 95％
Technical Parameter
Model | KNFC4/RJ45 | KNFC8/RJ45 | KNFC4-4/ RJ45 | KNFC8-4/ RJ45 | KNFC4-24/ RJ45 | KNFC8-24/ RJ45 | KNFCS4/ RJ45 | KNFCS4-16/ RJ45 | ||
Nominal voltage | UN | 5V | ||||||||
Maximum continuous operating voltage | UC | 9V | ||||||||
Nominal current | IN | 400mA | ||||||||
Nominal discharge current (8/20μs) | In | 10KA | ||||||||
Limit voltage, at 1n | L—S | Up | ≤20V | |||||||
S—PG | ≤600V | |||||||||
Transmission frequency | fG | 155MHz | 1000MHz | |||||||
insertion loss | Ae | ≤0.5db | ||||||||
response time | tA | ≤1ns | ||||||||
Protection level | IP20 | |||||||||
Connection head form | RJ45 | |||||||||
Protection of large ones | 1 | 4 | 24 | 1 | 16 | |||||
Forms of protection | RJ45 | |||||||||
Installation Mode | Connection with the device | |||||||||
Installation And Maintenance
1.This product series in the protected equipment signal circuit, and close to the protected equipment.
2.The input(In) and output(OUT) cannot be reversed; the input(In) is the lightning intruding end, output
(OUT) is connected with the protection device.
3.For the normal work of SPD, grounding is very important, the grounding wire cross-sectional area is
no less than 4m square meters, and as short as possible.
4.Lightning protection gate needn't special maintenance, but it's long-
term energized, so need messenger to inspect regularly, especially in the thunderstorm season, after the
lightning strike, it should be inspection on time, if found that the loop signal is abnormal, removing
protection gate, loop signal will back to normal, it means Lightning protection gate has been damaged or
life has ended, replace the new lightning protection gate on time.
5.The outside length of Coaxial line is more than 30m,it should be in the coaxial two ends with lightning
protection gate to ensure the best lightning protection effect.
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