User guide

DETEXI NVR 140 - 169
1) Assign Check Status Task for the camera using Check Alive service
The Check Alive service is relatively heavy on NVR resources and it should be used only in the case of
recording on I/O ports when the recorder is off and starts to record when the signal from I/O port is
received. First ensure that Check Alive service in the NVR Control Center — Monitor is checked.
Fig 104. NVR Control Center — Cameras — Security & Alarm
(Assign Check Status Task.)
1. In the NVR Control Center select a camera from the Cameras List.
2. Go to the Cameras — Security & Alarm (Fig 104).
3. Under the Actions on alarm select an appropriate predefined task from the Check status task drop-
down list. Task initiates if the IP-device fails to answer on C h e c k A l i v e request.
4. Repeat steps 1-3 for any camera from the Cameras List to setup actions on alarm.
9 It must be clear that if a device fails to answer this does not necessarily mean that
there is a physical device failure. It could be a connection (network) error. From the
NVR reliability point of view it is irrelevant as to why there is no video stream but
from the point of view of the technician (who has to fix the problem) there is a big
difference.