SVS-Vistek SHR 10GigE, Manual

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Reducing throughput transmission speed
The throttling of the transmission speed is an SNFC-compliant packet-based
traffic shaping and allows e.g. the connection of several cameras to one switch.
If the data rate resulting from the frame rate exceeds the throttle data rate with
activated throttling, the 10GigE interface automatically enters burst mode and
starts filling the memory. The large internal memory allows the camera to buffer
many images. But as soon as the memory is full, frame drops are the result.
5.1.13 Auto exposure
Auto Luminance or auto exposure automatically calculates and
adjusts exposure time and gain, frame-by-frame.
The auto exposure or automatic luminance control of the camera
signal is a combination of an automatic adjustment of the camera
exposure time (electronic shutter) and the gain.
The first priority is to adjust the exposure time and if the exposure
time range is not sufficient, gain adjustment is applied. It is pos-
sibility to predefine the range (min. / max.-values) of exposure
time and of gain.
The condition to use this function is to set a targeted averaged brightness of the
camera image. The algorithm computes a gain and exposure for each image to
reach this target brightness in the next image (control loop). Enabling this func-
tionality uses always both – gain and exposure time.
Limitations
As this feature is based on a control loop, the result is only useful in an averaged,
continuous stream of images. Strong variations in brightness from one image to
next image will result in a swing of the control loop. Therefore it is not recom-
mended to use the auto-luminance function in such cases.
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