GeoVision DVRV853, Quick Start Manual

Page: 6 / 111

iv
Frame rate limit in a single hard disk when connecting to IP cameras
MJPEG H.264 MPEG4
Video
Resolution
Frame Rate Bit Rate Frame Rate Bit Rate
Frame Rate Bit Rate
2560x1920 (5M) 30 fps 102.26 Mbit/s 240 fps
21.24 Mbit/s
2560x1600 (4M) 60 fps 73.49 Mbit/s 240 fps
15.28 Mbit/s
2048x1536 (3M) 60 fps 64.73 Mbit/s 480 fps
10.52 Mbit/s
1600x1200 (2M) 120 fps 41.16 Mbit/s 480 fps
9.16 Mbit/s
1280x960 (1.3M) 200 fps 30.04 Mbit/s 480 fps
5.77 Mbit/s 480 fps 6.30 Mbit/s
640x480 (VGA) 480 fps 11.42 Mbit/s 640 fps
2.54 Mbit/s 640 fps 3.27 Mbit/s
320x240 (CIF) 480 fps 5.16 Mbit/s 640 fps
0.75 Mbit/s 640 fps 1.03 Mbit/s
Note: The above data was determined using the bit rate listed above and hard disks with
average R/W speed above 80 MB/s.
The frame rate limit is based on the resolution of video sources. The higher video
resolutions the lower frame rates you can assign to a single hard disk. In other words, the
higher frame rates you wish to record the more hard disks you need to install. For the
information of recording frame rates, you may consult the user’s manual of the GV-
System or the IP camera that you wish to connect to.
•
The hard disk space required to install GV-System must be at least 1 GB.
• To use Advance Video Analysis, at least 1 GB of memory is required.
• To use two or more of the following functions simultaneously, at least 2 GB of memory is
required: Advance Video Analysis, Video Analysis, IP Camera and Pre-Record by
Memory.
3. CPU Requirements:
•
For recording resolution of 640 x 480 or above, Pentium 4 processor with Hyper
Threading is required.
4. Default Settings:
• For software recording rates, all GV Cards are set to CIF. For hardware recording rates,
GV-4008A / 4008 / 3008 Card is set to D1.