Black Box Dual 2.7 and iPATH 2.3 User Manual
724-746-5500 | blackbox.com
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724-746-5500 | blackbox.com
Chapter 3: Video-Related Features
3. Video-Related Features
3.1 Cloning of Video Outputs
3.1 Cloning of Video Outputs
It is now possible to send a single video 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).
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 selected channel.
The compatibility check reads the supported resolution list from the monitor and will only allow connection to those specific
resolutions.
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.
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 xxx,
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).
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.
entire frame is sent whether it has any changes or not.
For two static 1920 x 1080 screens this uses about 10% bandwidth.
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.
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.
performance when video is played.
3.4 Hot Plug Detect
Not a new feature, but we have extended the selection of HPD times to include a 1-second period.