6. Software Control - Lightware Device Controller
UCX series – User's Manual
53
Applied firmware package: v1.2.0b9 | LDC software: v2.5.10b1
DisplayPort Link
USB-C input port properties window
INFO:
The USB-C source sends Displayport video signal, so the video setting options of the USB-C port are
similar to the DisplayPort. The UCX switcher converts DP signal to HDMI internally.
DP Alternate Mode Policy
The following parameters can be set:
The two different signals (video and USB 3.x) can be transmitted at the same time with shared bandwidth.
This case DP video reserves 2x Superspeed Channels for the video signal in alternate mode and there are 2x
Superspeed Channels for USB 3.x.
▪
Auto:
Taurus offers both operation modes described below. BYOD device can choose between the two.
Neither USB3, nor 4 lane DP Alt mode operation (4K@60) is guaranteed. BYOD devices supporting
USB3.x usually choose shared mode: USB3.1 and 2 lane DP.
▪
Prefer video:
Uses 4 Lanes for Displayport video, in this case USB 3.x data transmission does not operate.
▪
Prefer USB 3.1:
The two different signals (DP video and USB 3.x) can be transmitted at the same time
with shared bandwidth. DP video reserves 2 Lanes.
Restart Link Training
#linktraining
Link training is a process where the source (PC, laptop, media server) and the sink (switcher) 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 USB 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 switcher can be maintained.
Clicking on the
Restart Link Training
button starts to build up the connection again between the switcher and
the source (it happens automatically when the source is connected). It is equal with unplug and reconnect
the Type-C connector.