11. Appendix
UCX series – User's Manual
106
Applied firmware package: v1.1.0b7 | LDC software: v2.5.4b3
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HPD signal is activated with up to 100ms delay compared to the 5V signal. This might cause compatibility
issue with some devices.
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If I1 input is selected by Autoselect after I5 input, the value of the following property might become
invalid: /MEDIA/VIDEO/I1/HDCP.ActiveHdcpVersion The video transmission is not affected, only the
displayed value of HDCP version is compromised.
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Properties of Audio XP do not reflect the limitations of the video XP. If I5 is in use on the video layer,
neither the video nor the audio content of I1 cannot be used.
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Ethernet port P5 is counting TX Ethernet packets even if there is no connection. /MEDIA/ETHERNET/
P5/COUNTERS.TxCounter Ethernet packet transmission on P5 is not affected by this issue. This
Ethernet port works as expected other than the incorrect TX counter value.
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If a USB Host without DisplayPort Alterante mode support is connected to one of the USB
Type-C connectors, then the ActiveAltMode property erroneously reads as DP. /V1/MEDIA/USB/
U1.ActiveAltMode=DP This issue causes Lightware Device Controller to erroneously display a yellow
""DP"" indicator on the port panel, which means the connection successfully entered DisplayPort
Alterante mode. The following property describing the DisplayPort Alterante mode capability of the
connected Host works as expected. /V1/MEDIA/USB/U1.HostSupportsDpAltMode=false USB and
Displayport Data transmission is not affected.
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An external control system using LW3 protocol subscribed to an HDMI output node OPEN /V1/
MEDIA/VIDEO/O1 might not receive all CHG messages related to the presence of embedded audio
on the output. For example if the video crosspoint switches beteen two sources: one with- and one
without embedded audio, then the following CHG messages might be missing: CHG /V1/MEDIA/
VIDEO/O1.EmbeddedAudioPresent=false CHG /V1/MEDIA/VIDEO/O1.EmbeddedAudioPresent=true
Transmission of the embedded audio stream from input to output is unaffected. Muting the audio also
works as expected.
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192kHz multichannel audio is only delivered as stereo to the outputs. Lower sampling rates are not affected.
