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Hikvision DS-7708NI-SP Manual

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User Manual of Network Video Recorder
247
4. Verify the switch is not flow control.
Check the brand, model of the switch connecting IP camera and NVR, and contact with the manufacturer
of the switch to check if it has the function of flow control. If so, please turn it down.
5. Check if the fault is solved by the step 1 to step 4.
If it is solved, finish the process.
If not, please contact the engineer from Hikvision to do the further process.
No monitor connected with the NVR locally and when you manage the IP camera to connect with the
device by web browser remotely, of which the status displays as Connected. And then you connect the
device with the monitor via VGA or HDMI interface and reboot the device, there is black screen with the
mouse cursor.
Connect the NVR with the monitor before startup via VGA or HDMI interface, and manage the IP
camera to connect with the device locally or remotely, the status of IP camera displays as Connect. And
then connect the device with the CVBS, and there is black screen either.
Possible Reasons:
After connecting the IP camera to the NVR, the image is output via the main spot interface by default.
Steps:
1. Enable the output channel.
2. Select “Menu > Configuration > Live View > View”, and select video output interface in the drop-down
list and configure the window you want to view.
The view settings can only be configured by the local operation of NVR.
Different camera orders and window-division modes can be set for different output interfaces
separately, and digits like “D1”and “D2” stands for the channel number, and “X” means the selected
window has no image output.
3. Check if the fault is solved by the above steps.
If it is solved, finish the process.
If not, please contact the engineer from Hikvision to do the further process.
Live view stuck when video output locally.
Possible Reasons:
a) Poor network between NVR and IP camera, and there exists packet loss during the transmission.
b) The frame rate has not reached the real-time frame rate.
Steps:
1. Verify the network between NVR and IP camera is connected.
1) When image is stuck, connect the RS-232 ports on PC and the rear panel of NVR with the RS-232
cable.
2) Open the Super Terminal, and execute the command of “ping 192.168.0.0 –l 1472 –f” (the IP address
may change according to the real condition), and check if there exists packet loss.
Simultaneously press Ctrl and C to exit the ping command.
2. Verify the frame rate is real-time frame rate.
Select “Menu > Record > Parameters > Record”, and set the Frame rate to Full Frame.
3. Check if the fault is solved by the above steps.
If it is solved, finish the process.
If not, please contact the engineer from Hikvision to do the further process.
… 248 …


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