Terms; Faq - CPcam CP-NVR-8CH User Manual

9.7 Terms

Dual-stream
Dual-stream: one high bit rate stream for the local HD store, QCIF/CIF/2CIF/DCIF/4CIF coding, other low bit
rate stream for network transmission, such as QCIF / CIF coding,
I Frame
I frame: intra frame image, remove redundant information to compress the transmittal data, also called key
frames.
B Frame
B frame: According to time redundant of the source image sequence previously encoded frame and account the
source image after the encoded frame to compress transmittal data, also known as bi-directional prediction frame.
P Frame
P-frame: according to image frame lower than the previous 'time redundant to compress transmittal data, also
called predicted frames.
Wide Dynamic
Bright parts and dark parts in particular can be seen very clearly at the same time. Wide dynamic range is a ratio
between the brightest luminance signal value and the darkest value.
S．M．A．R．T
SMART (Self Monitoring, Analysis and Reporting Technology): now widely used in hard disk data security
technology, monitoring system analysis Motor, circuit, HDD and disk head when HDD working, warn when
abnormality, sometimes will automatically slow down and back up data.
CVBS
Composite Video Broadcast Signal, consists of luminance and color signal from the composite baseband signal.
BNC
Coaxial cable connector, composite video signals or audio signals, commonly use 75 ohm connectors. BNC
welding and should pay attention to weld strength and remove burrs, or the signal wire and shield's contact will
lead to a substantial attenuation of signal strength

9.8 FAQ

DVR startup failure or continuously reboot
Possible reasons:
1. The system has been damaged from a bad DVR update.
2. There is a problem with the DVR main board error, please contact supplier.
3. There is an HDD error. Replace faulty HDD.
Remote control does not work
Possible reasons:
1. Check for batteries in remote control, especially positive and Negative.
Check for batteries' power.
2.
3. Check if remote receiver is obscured.
3 Check if DVR address corresponds to the remote address.
DVR cannot control PTZ
Possible reasons: