10
2.4 Optical port
The optical port of the switch is made in the form of a SFP slot, which
operates at speeds of 100Mbps or 1000Mbps, depending on the position of
the jumper FIBER.
2.5 Lightning protection
The switch has in-built lightning protection modules that provide protection of
Ethernet ports and power supply circuits ~220V from common-mode and
differential electromagnetic disturbances.
The switch is resistant to high-energy microsecond pulse interference
according to GOST R 51317.4.5 standard with a degree of rigidity according
to Table 2.5-1 with performance criteria B.
Switches are resistant to dynamic changes in the voltage of the AC
electrical network in accordance with standard GOST R 51317.4.11
according to Table 2.5-2 with the performance criteria B.
Table 2.5-1.
Port
Degree of rigidity
according to the table 1
GOST R 51317.4.5
Voltage pulse value, kW
+ 10%
Power lines of the switch
“wire-wire”
3
2
Power lines of the switch
“wire-ground”
4
4
Symmetrical
communication lines of
the switch “wire-ground”
3
2
Table 2.4. Compatibility of SFP modules
100Base-X
1000Base-X
Module 1.25Gbit/s
yes
yes
Module 155Mbit/s
yes
no
IMPORTANT!
The
switch is supplied without SFP module.
