Axis Communications 215 PTZ-E - Manual (Page 44)

AXIS 215 PTZ/AXIS 215 PTZ-E - Technical Specifications
44
File sizes
The AXIS 215 PTZ/AXIS 215 PTZ-E delivers the following file sizes (PAL):
The AXIS 215 PTZ/AXIS 215 PTZ-E delivers the following file sizes (NTSC):
General performance considerations
When setting up the camera, it is important to consider how various settings and situations will affect
performance. Some factors affect the amount of bandwidth (the bit rate) required, others can affect the frame
rate, and some will affect both. If the load on the CPU reaches its maximum, this will also affect the frame rate.
The following factors are among the most important to consider:
• High image resolutions and/or lower compression levels result in larger images. Bandwidth affected.
• Access by large numbers of Motion JPEG and/or unicast MPEG-4 clients. Bandwidth affected.
• Simultaneous viewing of different streams (resolution, compression, etc.) by many clients. Frame rate
and bandwidth affected.
• Accessing both Motion JPEG and MPEG-4 video streams simultaneously. Frame rate and bandwidth
affected.
• Heavy usage of event settings affects the CPU load. Frame rate affected.
• Enabled motion detection. Frame rate and bandwidth affected.
• Heavy network utilization due to poor infrastructure. Bandwidth affected.
• Viewing on poorly performing client PC lowers perceived performance. Frame rate affected.
• Access by large number of audio clients using full-duplex mode. Bandwidth affected.
Optimizing your system
To see the bandwidth and frame rate currently required by the video stream, the AXIS 215 PTZ/AXIS 215 PTZ-E
provides a tool that can be used to display these values directly in the video image.
To do this, special format strings are added as part of a text overlay.
Simply add #r (average frame rate in fps) and/or #b (average bandwidth
in Kbps) to the overlay.
For detailed instructions, please see the online help for Video & Image >
Overlay Settings, and the help for File Naming & Date/Time Formats.
PAL PAL aspect ratio corrected
Resolution Min-Max (KB) Resolution Min-Max (KB)
4CIF 704x576 10 - 300 4CIF 768x576 11 - 330
2CIF expanded 704x576 10 - 250 2CIF expanded 768x576 11 - 270
2CIF 704x288 5 - 150 2CIF 768x288 5.5 - 160
CIF 352x288 2.5 - 80 CIF 384x288 2.7 - 90
QCIF 176x144 1 - 20 QCIF 192x144 1.1 - 22
NTSC NTSC aspect ratio corrected
Resolution Min-Max (KB) Resolution Min-Max (KB)
4CIF 704x480 8 - 250 4CIF 640x480 7 - 230
2CIF expanded 704x480 8 - 200 2CIF expanded 640x480 7 - 180
2CIF 704x240 4 - 125 2CIF 640x240 3.5 - 110
CIF 352x240 2 - 70 CIF 320x240 1.8 - 60
QCIF 176x120 0.8 - 15 QCIF 160x120 0.7 - 14