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POE Ethernet lightning protection deviceCategory:Rail signal lightning protection device

Introduction:The two-in-one lightning protection device for Lefedi guide rail network is designed according to the national standard GB/T18802.21-2004/IEC61643-21:2000.

Description

Product description

The two-in-one lightning protection device for Lefedi guide rail network is designed according to the national standard GB/T18802.21-2004/IEC61643-21:2000. A composite lightning arrester suitable for surge protection of the network signal line and power supply equipment of the Ethernet power supply line. The internal structure contains two protection schemes for the network line and the power line to ensure accurate protection of the system from overvoltage and avoid induction Damage caused by over-voltage, operating over-voltage, and electrostatic discharge; at the same time, it has lightning protection for signal power supplies of different voltage levels.


Application field

Power over Ethernet line, network data line, power supply line


Features

◎ Multi-level protection, large flow capacity


◎ Low limit voltage and fast response time


◎ Low insertion loss, superior signal transmission performance, stability, and long service life


◎ Beautiful structure, easy to install and maintain


Technical Parameters


Model numberLFD-DRJ45/POE
The internetpower supply
Rated working voltage Un5V48V
Maximum continuous operating voltage Uc6V60V
Maximum discharge current ImaxJanuary 20.3KA4--50.3KA
(8/20ms)March 60.3KAJuly 80.3KA
1、2、3、6、4、5、7、8-PE10KA1、2、3、6、4、5、7、8-PE10KA
SE-PE5KASE-PE5KA
Limit voltage Up10/700/msJanuary 2<20V4--5<110V
March 6<20VJuly 8<110V
Insulation resistance MΩ≥0.4
Transmission rate Vs100M     1000M
Insertion loss dB≤0.5
Near-end crosstalk dB≥60(PASS)
bandwidth FG(0.3~100)M
Response time Ta≤1ns
Enclosure ratingIP20
Dimensions90×51×24mm
Shell materialFlame retardant PA66
Protection pair2对(1-2、3-6)2对(4-5、7-8)
Interface methodRJ45RJ45


Installation, use and maintenance

1. Installation instructions


Before connecting the protector to the system, check the grounding resistance of the ground grid, and it should meet the requirements of the specification. To connect the protector to the front end of the protected equipment, the connection must be reliable. Connect the ground wire of the protector to the protective ground bus as short as possible.


2. Matters needing attention

There are input (IN) and output (OUT) signs on the protector, and the output terminal is connected to the protected equipment. Otherwise, the protector will be damaged and the equipment will not be protected. If the loss increases due to poor connection of the plug socket and other factors, the protector should be reconnected or replaced. The user is not allowed to disassemble the fasteners of each part of the protector at will to avoid damage and affect normal work.


Wiring diagram

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