Lightware HDMI20-OPTC series, Руководство пользователя

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3. Product Overview HDMI20-OPTC series – User's Manual 19
3.7. Video and Audio Interface
The HDMI20-OPTC series transmitter can receive signal from two types of sources:
▪
DVI-D
▪
HDMI (with embedded audio)
The HDMI20-OPTC series receiver can output HDMI video signal (with embedded audio).
Port Diagram of Video and Audio Interface
Transmitter Side
The video signal is received at the Input 1 or the Input 2. The HDMI splitter duplicates the signal and sends
the same HDMI stream to the local HDMI output and the fiber output.
Receiver Side
The video and the embedded audio signal arrives via optical cable into the HDMI splitter. It duplicates HDMI
stream and transmits the signal without modifying it to the HDMI Out 2 port. The HDMI splitter transmits the
same signal into the video converter where three output conversion modes can be set.
3.7.1. Output Conversion Modes
Conversion modes refer to the receiver side and this property can be set in the front panel menu of the
transmitter (see Conversion Submenu ), available in the Lightware Device Controller Software (see HDMI
Output Port - Receiver ) and also in the LW3 tree, both the transmitter and the receiver.
In
Transparent mode
(no conversion mode), the video signal is transmitted to the HDMI Output 1A and the
HDMI Output 1B without any changing.
INFO: Maximal data transmission capacity of Output 1B is 9 Gbps, if the video signal is above this
bandwidth, there will be no picture on the display.
Split mode
means splitting of the original video signal into left and right halves and sending the split signal to
the HDMI Output 1A and the HDMI Output 1B.
In
Downsample convert mode
(convert to YCbCr 4:2:0) the video converter subsamples the 4:4:4 signal to 4:2:0
on the 1A and 1B Output port.
INFO: Split and downsample convert modes are available at maximum 8-bit color depth.
INPUT 1
INPUT 2
HDMI Splitter
OUTPUT 2.
Fiber OUT
OUTPUT 2
OUTPUT 1A
Fiber IN
HDMI Splitter
OUTPUT 1B
Transparent
Split
Downsample
Video converter
HDMI20-OPTC-TX220
HDMI20-OPTC-RX220
3.7.2. Autoselect Feature
Besides manual crosspoint selection you can
choose the Autoselect option on the video
ports. There are three types of Autoselect as
follows:
▪
First detect mode:
selected input port is
kept connected to the output while it
has an active signal
▪
Priority detect mode:
always the highest
priority active input is selected to
transmit.
▪
Last detect mode:
always the last attached
input is selected to transmit.
Video Interface - Example
The Concept
The HDMI signal with embedded audio comes from the Event master to Input 1. The other source is a PC,
which sends DVI-D signal to Input 2. Both of them are connected to the transmitter, where the autoselect
mode is enabled with priority 0 on the Input 1, so the Input 1 is selected.
INFO: Only one input can be selected at the same time.
New event?
First detect Last detect
No Audio/Video
transmission
Remains
selected
Last connected
input is selected
Y
N
Current
Autoselect mode
Port with
priority 0 has a
valid signal?
Selected
port still has a
valid signal?
Priority detect
Port with
priority 1 has a
valid signal?
N
N
N
Y
Y
Port with priority
0 is selected
Port with priority
1 is selected
Y
MAIN MENU
> System Settings
Ports
EDID
Health
Remote
POWER / LIVE FIBER LINK HDCP INPUT 1 INPUT 2
CONTROL
SELECT
USB
HDMI20
OPTC
220-PRO
HDMI20-OPTC-TX220-Pro
HDMI 2.0 Multimode Fiber Transmitter
HDMI20-OPTC-RX220-Pro
HDMI 2.0 Multimode Fiber Receiver
POWER / LIVE FIBER LINK HDCP SIGNAL PRESENT OUTPUT CONVERSION
CONTROL
FUNCTION
USB
HDMI20
OPTC
220-PRO
HDMI20-OPTC-TX220-Pro HDMI20-OPTC-RX220-Pro
PC
DVI-D IN
Projector
HDMI OUT
Event master
HDMI IN
OPTC IN OPTC OUT
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