4. UBEX Concept
UBEX series – Matrix Application Mode – User's Manual
46
4. UBEX Concept
UBEX series – Matrix Application Mode – User's Manual
46
MA
TRIX APPLIC
A
TION MODE
Applied F-series endpoint firmware package: v1.4.1 | Applied R-series endpoint firmware package: v1.4.1 | Applied MMU firmware package: v1.2.1 | LDC software: v1.34.0b2
4.3.4. Bandwidth Limitation
Two video streams can be transmitted at the same time from an endpoint device up to 20 Gbps bandwidth.
When the bandwidth limit is exceeded, the priority of the streams is the following:
Transmitter Side
The stream of the HDMI in 1 has the higher priority and the stream of the HDMI in 2 will not be transmitted
until the bandwidth limit problem is solved (the parameters of the video is still received by the receiver). In
that case the stream tile of the disabled stream becomes amber in the LDC software.
Transmitter side
HDMI in 1
HDMI in 2
Status
Stream tile
(LDC)
Port tile
(LDC)
Status
Stream tile
(LDC)
Port tile
(LDC)
Enabled
1/01
Disabled
1/02
Receiver Side
The switched stream of the HDMI out 1 has the higher priority and the stream of the HDMI out 2 is going to
be disabled (the parameters of the video is still received). In that case the stream tile of the disabled stream
becomes amber in the LDC software.
Receiver side
HDMI out 1
HDMI out 2
Status
Stream tile
(LDC)
Port tile
(LDC)
Status
Stream tile
(LDC)
Port tile
(LDC)
Enabled
1/01
Disabled
1/02
Transceiver Side
Thanks to the 20G full-duplex SFP+ interface the transceiver has no bandwidth limitation on the input and
output sides either. The device is able to receive and transmit 2x 4K60 Hz 4:4:4 24bit streams on the HDMI
input and output ports either.
Transceiver side
HDMI in 2
HDMI out 1
Status
Stream tile
(LDC)
Port tile
(LDC)
Status
Stream tile
(LDC)
Port tile
(LDC)
Enabled
1/02
Enabled
1/01
INFO:
You can find the bandwidth requirements belong to each resolutions in the
4.3.5. The Difference between the Scaler and the FRC - Example
The following example helps to understand how the scaler and the frame rate converter work and describes
the differences between them.
Example for Downscaling
When the resolution of the stream is bigger than the supported resolution of the sink devices:
▪
HDMI out 1
: set the scaler for the supported resolution to fit the stream to the sink device.
▪
HDMI out 2
: the frame rate converter crops the center part with 1080p resolution from the picture.
Example for Upscaling
When the resolution of the stream is smaller than the supported resolution of the sink devices:
▪
HDMI out 1
: set the scaler for the supported resolution and it fits the stream for the sink device.
▪
HDMI out 2
: the frame rate converter fills the extra image part with black pixels.
