VDH-DXB Hardware Operation Manual
13
A : The possible causes:
1. Network traffic jam
2. Bandwidth limitation in the DVR side
3. Group mode is used in the DVR networking settings. More mosaics in
group mode, not recommended.
4. Masks or channel protection in DVR side
5. No rights for the user account
6. Bad DVR output
Q 15.
Networking not stable
A : The possible causes:
1. Networking not stable
2. IP conflict
3. MAC conflict
4. LAN card error (PC/DVR)
Q 16.
USB backup error
A : The possible causes:
1. CPU too busy to back up the data! Stop recording then backup!
2. Device not compatible
3. Backup device error
Q 17.
DVR can not be controlled by the keyboard
A : The possible causes:
1. DVR has wrong port setting
2. Wrong address
3. Low power for use; each adaptor need to be powered.
4. Transmission distance is too far
Q 18.
Alarms can not be stopped
A : The possible causes:
1. Wrong alarm settings
2. AlarmOut turned on manually
3. Input equipment error or wrong connections.
4. Wrong firmware problem; Upgrade firmware to fix it.
Q 19.
Alarms do not work
A : The possible causes:
1. Wrong alarm setting