8
Table 2.4-2.
T
y
pe
of
i
mp
ac
t
Degree
of
tes
t s
ev
erit
y
T
es
t v
ol
ta
ge
,
% Un, +
5
%
V
ol
tag
e t
ran
s
ien
ts
am
p
lit
ud
e
, % Un
V
ol
tag
e t
ran
s
ien
ts
du
rati
on
,
int
erv
al
s
(
ms
)
Voltage dips
1
70
30
10 (200)
Voltage
interruptions
1
0 to 20
100
1 (20)
Voltage surges
2
120
20
25 (500)
Note: Un is the nominal power supply voltage.
("Performance criteria B" means temporary disruption of performance or
functioning with further recovery without operator's intervention)
Continued operation with changes in the supply voltage from ~187 to
~246V.
2.5. Restarting cameras in case of hanging
PSW-1-45-WiFi switch continuously monitors traffic intensity of the camera.
If network activity is lost, the switch will reboot the camera by disconnecting
PoE power supply. This function is activated by a jumper for each particular
port.
