Specifications

2.3 ALARM FUNCTIONS
The alarm function can be enabled or disabled in the
alarm profile. When motion is detected by a camera or
when an alarm is triggered by an Action/Alarm box
(optional), the alarm function is activated.
In case of an alarm:
Monitor in day mode:
The monitor selects the respective camera input of
the Alarm/Action box.
The blinking alarm symbol is displayed on the
monitor screen.
The power LED starts to blink.
The alarm output contact is activated (horn, siren
or telephone selector) and a buzzer sounds for
default 30 secs (programmable range from 5 sec. to
15 min.).
The history table is updated with the alarm event.
Alarm event string is visible at the bottom of the
monitor screen until alarm is acknowledged.
Monitor in night mode (display ON):
Same as in day mode with the exception of:
An alarm generated in this night mode will be
processed by the system after the entry delay time is
expired. If the system switches over from night to
day during this entry delay time a generated alarm
will not be processed. Exceptions are special alarms,
which always will be processed.
Monitor in night mode (display OFF):
Same as in night mode (display ON) with the exception
of:
The buzzer does not sound.
To show or reset alarm, switch over from night
mode to day mode.
2.3.1 Reset Alarm
The alarm resets whenever the ROTARY wheel is
pressed. The monitor returns to the status before the
alarm occurred.
When the cause of the alarm has not been eliminated,
the monitor continues to display the alarm symbol.
When the ROTARY wheel is not pressed during an
alarm, the monitor automatically acknowledges the
alarm after default 30 secs (programmable range from 5
sec. to 15 min.). The monitor returns to the status
before the alarm occurred. The blinking alarm message
is displayed until the ROTARY wheel is pressed.
2.3.2 Recorded Alarms
During playback the recorded alarms will be visible.
Should an alarm be received during playback of a tape,
the system will return to live mode.
2.3.3 Special Alarms
A special alarm is given in case of:
TAMPER An accessory housing has been
opened.
FAIL A failure in the system
communication to accessories or
camera has been found.
Press the ROTARY wheel to stop the alarm.
Detailed information of the alarm is stored in the
history table.
2.4 DOORBELL OPERATION
If the doorbell button on the intercom box is pressed
the following functions are activated:
n The monitor automatically select the camera input
to which the intercom box is connected
n The blinking bell symbol is displayed on the
monitor screen as long as the door bell button is
pressed
n The history table is updated
Remark: The doorbell function is only functional in
combination with an intercom box (optional).
PHILIPS OBSERVATION SYSTEM VSS7390/00T SWITCHER
Section 2 - Operation
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