When using UDP Technology IPE/NVC devices, it is vital that you take the following usage guidelines into account to ensure that the device does not become overloaded.

If the DSP does become overloaded, the video will begin to drop frames and become jerky.

DSP Resources
The following figures indicate approximate DSP usage. They are estimated with D1 resolution, 1.5 Mbps bit rate and 30fps, and 1 channel occupied.

MJPEG 20 - 25%
MPEG4 60 - 65%
H.264 75% - 80%
Motion Detection 3%
VCA 20% - 25%
Enabled Deinterlacing- DSP software Best Performance 7 - 8%
Enabled Deinterlacing- DSP software Best Quality 10 - 11%

It is essential to balance bit rate, frame rate, resolution, encoding type and deinterlacing mode to achieve the best performance from the device.

Maximum Throughput
The maximum throughput of the encoder, that is, all streams combined, is 10Mbps. This load may be arrived at by streaming using high load settings and/or a large number of streams.

When using MPEG4 or H.264, the maximum bitrate per video stream is limited to 4Mbps. Even if the bitrate is set to more than 4Mbps, the image quality is not further enhanced.

Stream Limitations
The number of streams that can be simultaneously connected varies depending on the streaming method used, and on the load placed on the system by each stream:
RTSP Streaming, Unicast - Theoretically unlimited, but depends on the maximum throughput at any given time.
HTTP Streaming - Theoretically 10 streams, but depends on the maximum throughput at any given time.