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Chapter 3: Video -Related Features

3. Video-Related Features

3.1 Cloning of Video Outputs

It is now possible to send a single v ideo stream to both video outputs on an a ServSwitch Agility Dual receiver.
This is useful if you are using screens back to back, attaching another extender or transmission device like the Black Box® Digital
Wizard IP DXS. By “splitting” the video at the receiver, you will only need to transmit the video to one transmitter, therefore
limiting the data required to transmit the video to two screens (or other devices).

3.2 Video Compatibility Check

This feature is designed to stop the sending of video resolutions to monitors that cannot support them.
Many monitors simply stop working if they receive a signal they can’t support. It is then impossible to bring up an OSD to change
the selected channel.
The compatibility check reads the supported resolution list from the monitor and will only allow connection to those specific
resolutions.
If the resolution sent is not supported, an OSD message from ServSwitch Agility is generated saying “out of range” and you will
be able to switch to another appropriate channel.
The drawback here is that many monitors do not hold the full information of the video resolutions they can support. (i.e. Dell x xx,
Native 2048 x 1152—works fine at 1920 x 1080 but doesn’t list it in EDID, so with compatibility set to “ON,” it will not display a
fixed resolution of 1920 x 1080).

3.3 Background Refresh

This feature has not changed in this release. The default setting is currently set at 32 frames. This means that after 32 frames, an
entire frame is sent whether it has any changes or not.
For two static 1920 x 1080 screens this uses about 10% bandw idth.
The refresh is designed to minimize any impacts of lost data (IP packets) but, in reality, packets do not go missing in a wired
system.
We suggest that you set the refresh rate to 256 frames—this reduces the bandwidth to about 1% and assists frame rate
performance when video is played.

3.4 Hot Plug Detect

Not a new feature, but we have extended the selec tion of HPD times to include a 1-second period.