SVS-Vistek EC02 Series, Руководство пользователя, Страница: 51 / 131

SVS-VISTEK
Feature-Set 51
7.2.6 System Clock Frequency
Default system clock frequency in almost every SVCam is set to 66.6
MHz. To validate your system frequency refer to: specifications .
Using the system clock as reference of time, time settings can only be
made in steps. In this example, the transfer rate is 66.7 MHz, thus
resulting in steps of 15 ns.
𝑡 =
1
66. 6
�
𝑀𝑀𝑀
=
1
66 666 666. 6
�
1
𝑠
= 15 ∙ 10
−9
𝑠 = 15 𝑛𝑠
NOTICE
Use multiples of 15 ns to write durations into camera
memory
7.2.7 Temperature Sensor
A temperature sensor is installed on the mainboard of the camera.
To avoid overheating, the temperature is constantly monitored and read.
Besides software monitoring, the camera indicates high temperature by a
red flashing LED. (See flashing LED codes)
7.2.8 Read-Out-Control
Read-Out-Control defines a delay between exposure and data transfer.
Read-Out-Control is used to program a delay value (time) for the readout
from the sensor.
With more than one camera connected to a single computer, image
acquisition and rendering can cause conflicts for data transfer, on CPU or
bus-system.
Figure 49: Illustration of physical data stream in time