User
Guide
Page 119
Event Handling
3.
Select
[ENABLED]
option
and use “
Left
”
or
“
Right
”
button to enable (i.e. set the
value to
[YES]
) System Tamper event handler.
4.
Select
[SENSOR TYPE]
option and use “
Left
”
or
“
Right
”
button to choose sensor
type according to the configuration of
RX
system tamper control circuit
type
5.
Select
[ACTION]
option and press “
Enter
”
button to select system tamper action. (For
action, please refer to Event Action Part in
Advance Operation Section of User Guide)
7. Power Failure
Power Failure Input
It is an input to the video recording server typically used for wiring the output signal pin from an
uninterruptible power supply (UPS)
.
Sensor Type
The power failure input circuit type is normal close (NC). When the state of the circuit is closed,
it indicates normal of
RX
. Otherwise, when the state of the circuit is opened, it
indicates power failure of
RX
. The power failure input circuit type is normal open
(NO). When the state of the circuit is opened, it indicates normal of
RX
. Otherwise,
when the state of the circuit is closed, it indicates power failure of
RX
.
Physical Configuration for Power Failure Input
The power failure input and ground of
RX
video recording server need to connect to
a universal power supply circuit UPS, so the video recording server can detect any power failure
condition.
Note: The UPS circuit setup below is used as an example. Not all UPS have signal output. Some
UPS have self-test for a period of time. Their signal output may toggle during test.
UPS
Power Failure Input
Power from UPS
Other
Devices
Power from UPS
UPS provides backup
power in certain period
and send a power failure
signal to RX when the
main power does not
work.
Main Power
Ground
SYSTEM TAMPER
ENABLED
YES
SENSOR TYPE
NO
ACTION
…
SYSTEM TAMPER
ENABLED
YES
SENSOR TYPE
NC
ACTION
…
SYSTEM TAMPER
ENABLED
YES
SENSOR TYPE
NC
ACTION
…
