China Starwin Science&technology Co.Ltd
|
Payment Terms: | T/T |
Place of Origin: | Shaanxi, China (Mainland) |
Add to My Favorites | |
HiSupplier Escrow |
KNFH Series Of Audio Signal Lightning Protection Gate
KNFH series of audio signal lightning protection gate is mainly used for network system of public
telephone network signal transmission, such as telephone, fax machine, MODEN, switch, ADSL, ISDN
and other equipment lightning and overvoltage protection.
Working Conditions
▪ working temperature:-40℃~ +80℃
▪ relative humidity:5%~ 95%
Technical Parameter
model | KNFH1 | KNFH2 | KNFH2/2 | KNFH2-16 | KNFH1-16 | |||
Nominal voltage | UN | 150V | ||||||
Maximum continuous operating voltage | UC | 180V | ||||||
Nominal voltage | IN | 400mA | ||||||
Nominal discharge current(8/20 µ s ) | In | 5KA | ||||||
Limit voltage, at 1n | L-L | Up | ≤250V | |||||
L-PG | ≤600V | |||||||
Transmission frequency | fG | 2MBit/s | ||||||
insertion loss | Ae | ≤0.5db | ||||||
response time | tA | ≤1ns | ||||||
Series resistor / wire | 10Ω | |||||||
Protection level | IP20 | |||||||
Connection head form | RJ11 | |||||||
Protection of large ones | 1 | 2 | One into two | 16 | 16 | |||
Forms of protection | 3/4 | 2/3,4/5 | 3/4 | |||||
Installation Mode | Connection with the device | 19 in. chassis |
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 without 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 inspected 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 more than 30m,it should be in the coaxial two ends with lightning
protection gate to ensure the better lightning protection effect.
Shippment:
We ship your order by sea or by air...
Our core principles
3S-Superiority,Speed,Service
Faster Speed & Better Tailor-made professional service
Our promise to customer:
Our products are all guaranteed,you will have no worry to use.
We will delivery the order strictly te order confirmed!