7
2.3. PoE power supply
PSW-1-45-WiFi switch supports the following types of power supply:
•
IEEE802.3af power supply for ports 1 to 4,
•
Passive PoE 24V (pairs 4,5 and 7,8) for port 5.
Passive PoE on port 5 is activated by the jumper. Before connecting a
laptop to port 5, put Passive PoE jumpers into the OFF position.
2.4. Lightning protection
PSW-1-45-WiFi switch has built-in lightning protection modules that
protect Ethernet ports and 220V power circuits from common-mode and
differential electromagnetic interferences.
The switch is resistant to powerful microsecond pulse interferences
according to GOST R 51317.4.5 standard with the degree of severity
according to Table 2.4-1, performance criteria B.
The switch is resistant to AC transients in the power supply circuit
according to GOST R 51317.4.11 standard, Table 2.4-2, performance
criteria B.
Table 2.4-1.
Port
Degree of severity according to
Table 1, GOST R 51317.4.5
Voltage surge value, kV+ 10%
Wire-to-wire power supply
circuits
3
2
Wire-to-ground power supply
circuits
4
4
Wire-to-ground balanced
communication circuits
3
2
