Q-See QSDT16PCRC 用户手册

CHAPTER 7  SYSTEM SETTINGS

The system can receive alarm signals generated both by attached devices as well as 
from those from over a network. Alarms can also be generated when motion is detected.

Each type of alarm can be configured to generate an audible alarm - externally or internally, as 
well as triggering other, pre-defined actions.

Buzzer - Select whether to activate the computer buzzer if alarms have been triggered and 
also select how long the buzzer sounds.
Pre-Alarm Record - Select whether the system will pre-record and for how long. 
Big Screen Holding Time - The corresponding channel will be full screen when an alarm is 
triggered. Set the full screen hold time here.
Motion Holding Time - How long the recording continues after motion stops.
Sensor Holding Time - How long the recording continues after sensor stops.
Disk Shortage Alarm - If the Partition free space is less than the set percent, the system will 
stop recording or recycling, but will sound an alert according to the settings.

Alarm Record
Every sensor can trigger multiple channels to record. For example: if CAM1, CAM4 and CAM5 
are selected for Sensor2, then once the sensor is activated, CAM1, CAM4 and CAM5 will 
begin to record. 

Different conditions can be set to trigger an alarm.

Video Loss - Users can select alarm output 
for this option. 
For example: If you select alarm_out1 and 
alarm_out3 for video loss. Then video loss of 
any channel will trigger alarm_out1, alarm_
out3 to show a red light in the Alarm output 
status panel
Disk Alarm - When HDD available space is 
less than the set value, it will trigger alarm.
Sensor -  If users have mounted sensors, 
when the sensors have been activated, it will 
trigger the selected output alarms. 
Motion - Users can set the output of motion 
detection alarm by different alarms and 
remote alarm.

Users can also select the voltage (high or low) for alarm signals.