Lightware MX2-4x4-HDMI20-CA User Manual page 48

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6. Software Control – Lightware Device Controller
General Tab - Embedded audio
Presence of the embedded audio and the sampling frequency are displayed in Embedded audio section.
CEC Tab
The MX2-HDMI20 series is able to send and receive Consumer Electronic Control (CEC) commands. This
feature is for remote control of the source or sink device. CEC is a bi-directional communication via HDMI or
DP cable, in this case between the source and the input port of the matrix switcher.
ATTENTION! Make sure that the controlled unit is CEC-capable and this function is enabled.
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Layout of CEC panel in Lightware Device Contoller
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MX2-HDMI20 series – User's Manual
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#cec
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INFO: The first 2x2 bit source and destination address. In this case that is always 04.
Applied firmware package: v1.7.0 | LDC software: v2.5.1b5
Tab selector Select the CEC tab for managing CEC commands.
Drop-down This list contains the basic CEC commands, most of them are displayed on the
command list graphical interface, too (on the left side). Click on the Send button to execute sending
the command.
Custom command The text field is for sending hexadecimal commands to the source. The maximum
textbox length of the message could be 30 character-long (15 bytes). Click on the Send
button to confirm.
OSD string textbox A max. 14 character-long text can be shown on the source device. The send
OSD (On-screen display) command textbox is the input field of the string.
Alphanumeric characters, glyphs and space are accepted. Click on the Send
button to execute the command.
Received Command This window displays all the sent (in red) CEC commands and the received
box answers (in blue) with a timestamp.
Legend of the received message:
< [10:33:17] ACK
Answer for the acknowledged command.
< [10:35:01] NACK
Answer for the not acknowledged command.
< [10:33:17] IN PROGRESS
The command is in progress at the moment.
< [10:33:17] FAILED
Answer for other failure.
< [10:35:40] feature_abort_<*>
This is the most common answer from the third-party devices when the
command is delivered, but the execution is refused. The cause of the refuse
stands after 'feature_abort' expression.
Clear button Click on the Clear button to erase the content of the terminal window.
CEC command This panel provides the quick and easy management of CEC commands. The
button panel buttons are pre-programmed with basic functions and send command towards
the source. The communication is displayed in the Received Command box.
For the list of commands, see
section. Both the layout and functionality are similar to the design of a remote
control.
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Sending CEC Commands Towards the Source