English
To ensure surge protection of devices placed on the roof (under the roof) and connected to the Ethernet network, it is recommended to install the DL-1G RJ 45 (SALTEK) surge protection, or the DTB 4/100M 5cat/48V (HAKEL) surge protection.
The DL-1G RJ45 is suitable for wall mounting and protects all 4 pairs, both data and power (PoE).
It protects the Ethernet electronic circuits against damage caused by overvoltage at the interfaces of protection zones LPZ 0A(B)-1 and higher, in accordance with the ČSN EN 62305 standard. It is recommended to place the protection at the inputs of the protected equipment (at the transition of zones). The protected lines pass through the protection, e.g. the weather station cable should be connected to the DL-1G RJ45 surge protector.Design:The DL-1G RJ45 is suitable for wall mounting; it protects all 4 pairs of wires, both data and power.It is supplied in a metal box, which can be mounted on a DIN rail.
The input and output of the surge protection is fitted with the RJ-45 connectors.
Fig. 1. An example of installation of SPD under the roof of a house (in the loft)
Tab. 1. Basic parameters of DL-1G RJ 45:
|
The number of pairs |
4 |
|
|
Type of SPD |
ST 1+2+3 |
|
|
Connection input/output |
RJ-45/RJ-45 |
|
|
The highest continuous operating voltage |
UC |
60 VDC |
|
Nominal current |
IL |
0.5 A |
|
C2 total discharge current (8/20) PE wires |
C |
10 kA |
|
D1 total discharge current (10/350) PE wires |
ITotal |
2 kA |
|
C3 protection voltage level wire-wire with In |
Up |
110 V |
|
C3 protection level PE wire with 1 kV/μs |
UP |
350 V |
|
Category |
|
CAT. 6 |
|
Operating temperature |
|
-40 °C ÷ +60 °C |
|
Level of protection |
|
IP 20 |
The DTB 4/100M 5cat/48 V is suitable for wall mounting, and it protects all 4 pairs, both data and power (PoE).
It protects the Ethernet electronic circuits against damage caused by overvoltage at the interfaces of protection zones ZBO 0A(B)-1 and higher, in accordance with the ČSN EN 62305 standard. It is recommended to place the protection at the inputs of the protected equipment (at the transition of zones). Protected lines pass through the protection, e.g. the weather station cable should be connected to the DTB4/100M 5cat/48V surge protector.
Installation:The DTB 4/100M 5cat/48 V protector is suitable for mounting on the wall. It protzects all four pairs of wires. It is supplied in a plastic box that can be screwed on the wall, or glued with its rear side directly on the protected
equipment (using double-sided adhesive tape).
The input and output of the surge protection is fitted with the RJ-45 connectors.
Tab. 2. Basic parameters:
|
The number of pairs |
4 |
|
|
Connection input/output |
RJ-45/RJ-45 |
|
|
Nominal operating voltage |
UN |
48 V |
|
The highest continuous operating voltage |
UC |
56 V |
|
Nominal current |
IN |
0.3 A |
|
C2 Maximum leakage current (8/20) |
Imax |
2 kA |
|
C2 Nominal leakage current In (8/20) |
In |
1 kA |
|
Voltage protection level at In |
Up |
10 V |
|
Voltage protection level at 1 kV/μs |
UP |
< 10 V |
|
Maximum data transfer rate |
|
100 MBit/s |
|
Operating temperature |
|
-40 °C - +80 °C |
|
Level of protection |
|
IP 20 |