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User’s Manual
3.4.
Colorful Video Signal Generator (Output video at any mode)
The instrument performs the consecutive output in the
same screen. It synchronously outputs all characters and
images displayed on LCD at any mode of functions. At
the “colorbar” mode, the colorful images can be
transmitted through the VIDEO IN and be received by the
VIDEO IN so as to monitor the condition of video input and output. The function can be
applied to test and monitor transmission channels, e.g. the video optic transceiver. The
VIDEO OUT port should be connected with the transmitter of the optic transceiver, and the
VIDEO IN port with the receiver of the optic transceiver.
‰
Press
and enter the mode of colorful image generator. Screen shown as the above
picture.
‰
Receiving the image: Connect the ports of Video Out and Video In of the instrument. The
color bar images output by the image generator transmit through the port of Video Out.
The screen then is at the receiving status. If the port of Video In does not receive the
current images transmitted by the image generator, the screen will display “No Video
Input”. If the image receiving from the image generator is correct, the screen will display
that the transmitting images are equivalent with the receiving ones.
‰
Switching input and output: As the signal of the Video Input is connected, “No video
input” disappears from the screen. Press
to switch to receiving the video input,
and the color bar images output simultaneously display “Video Input” on the LCD screen.
Pressing
again switches to video output, and the color bar images output
simultaneously display “Video Output” on the LCD screen.
Practicability: As maintaining the dome, send the images to the monitoring center with
the function. If the monitoring center receives the images sent by the instrument, it
indicates the video transmission channel works normally.
Ver: STM2.2
Page.22.