Lightware MX2-4x4-HDMI20-CA User Manual page 51

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6. Software Control – Lightware Device Controller
HDCP enable #hdcp
▪ Disable HDCP on input: The connected source will detect that the matrix is not HDCP-compliant and turn
off authentication if the content allows it.
Allow HDCP 1.4 only *: The connected source will detect that the matrix is compliant with HDCP 1.4 but not
▪
compliant with HDCP 2.2.
▪ Allow HDCP 2.2 and HDCP 1.4: The connected source will detect that the matrix is compliant with HDCP
2.2.
▪ High Value mode (limit switching to HDCP 2.2 sinks): Any version of HDCP is allowed on the input but the
incoming signal is always internally upconverted to HDCP 2.2 content and thus cannot be switched
to HDCP 1.4 sinks.
*The availability of this setting depends on the hardware version of the input board (V1x_) and the port type
(HDMI), only in MX2-8x8-HDMI20 model. The hardware version can be found in
the System Settings Menu, Device Info
Link training #linktraining
This is a status information about the success of the link training. The result of the connection can be
succeeded or not ready.
Link training is a process where the source (PC, laptop, media server) and the sink (matrix) agree on a
data rate, lane count and electrical parameters. The successful link training is a pre-requisite of the video
transmission. If the quality of the DisplayPort cable is insufficient to reliably handle higher data rates, link
training will result in a lower data rate where stable connection between the source and the matrix can be
maintained.
Clicking on the Restart Link Training button starts to build up the connection again between the matrix
switcher and the source (it happens automatically when the source is connected). It is equal with unplug
and reconnect the DP connector.
Link datarate
The DisplayPort 1.2 standard uses fix data rates on the high-speed lanes. With this setting, it is possible to
limit the maximum data rate. Please note that the source can use lower data rate if the quality of the cable
is low.
▪ Max RBR: Reduced Bit Rate uses 1.62 Gbps bandwidth per lane
Max. HBR: High Bit Rate (HBR) uses 2.70 Gbps
▪
Max. HBR2: HBR2 is the fastest mode with a data rate of 5.40 Gbps per lane
▪
INFO: RBR and HBR are defined in the DisplayPort 1.0-1.1a standards, while HBR2 was introduced in
DisplayPort 1.2.
Status Tab
submenu in the LCD.
Applied firmware package: v1.7.0 | LDC software: v2.5.1b5
MX2-HDMI20 series – User's Manual
Link lane count
DisplayPort cables have four high-speed lanes, each of them are capable of transmitting data at a rate of
5.40 Gbps.
The following parameters can be set:
Max. 1 lane: Transmits data at a rate of 5.40 Gbps.
▪
▪ Max. 2 lane: Transmits data at a rate of 10.80 Gbps.
▪ Max. 4 lane: Transmits data at a rate of 21.60 Gbps.
The source and the sink agree on the link lane count during the link training process. Fewer link lanes result
in lower power consumption at the transmitter side. With this setting, it is possible to limit the number of
link lanes used.
INFO: Please note that the source can still use fewer lanes if there is no need for high data rates.
in the LDC or in
Total available link bandwidth
Displays the maximum available bandwidth.
The total available link bandwidth is the actual
of the video stream is higher than the total available link bandwidth, then it is not possible to transmit the
video stream over the link.
Conversion mode
The following settings are available:
▪ Passthrough: the video signal is transmitted to the output without any changing.
▪ RGB 4:4:4 to YCbCr 4:2:2 12 bit: the video converter subsamples the 4:4:4 signal to 4:2:2.
▪ RGB 4:4:4 to YCbCr 4:2:0 8 bit: the video converter subsamples the 4:4:4 signal to 4:2:0.
INFO: When the DisplayPort source sends RGB 4:4:4 10-bit HDR signal, then it will be converted to 8-bit
HDMI signal, because of the HDMI 2.0 bandwidth limit. To enable YCbCr 4:2:2 conversion will save the
bandwidth by chroma subsampling and preserve the color depth.
Link datarate multiplied by the
#colorspace
51
Link lane count. If the bandwidth