Lightware HDMI-TPS-RX220AK, Руководство пользователя, Страница: 26 / 118

4. Device Concept HDMI-TPS-RX220AK – User's Manual 26
Applied firmware package: v1.4.0 | LDC software: v2.4.0b3
4.6.3. IR Interface
ATTENTION! For the complete usage attach the supplied IR emitter unit to the IR OUT and the IR detector
unit to the IR IN connectors.
Technical Background
The Infrared signal transmission is similar to the serial data communication. The receiver contains dedicated
IR I/O connection and also can transmit/receive IR signal via the TPS interface. The signal is in pronto HEX
format in both cases.
Block diagram of the IR interface
The most trivial usage of the IR interface is the transparent mode: signal received or sent on local IR ports
are transmitted directly on the TPS IR link port and vica versa. Beside of this there is an IR recognizer in the
device where you can assign actions in Event Manager for. The third option is the command injection mode
(like at serial interface in the previous section) where you can send IR commands over LAN. Command
injection mode can be turned on and off by input/output ports.
INFO: All settings are available in the LDC software, see settings in the Infra section.
INFO: The modulation of output IR signal can be turned off or on by LW3 command, see the Enable/
Disable Output Signal Modulation section.
IR Signal Transmission - Example
The Concept
An IR detector is attached to the Infrared input port of the Receiver and IR signals are sent by the Remote
controller. The Receiver is connected to a compatible Transmitter built with IR output port via TPS line. An
audio device is also connected to the audio output port of the receiver.
The following ways are available for controlling the devices:
▪
Transparent mode
: IR signals are received over the local IR input port of the
Receiver
by the Remote
controller. The signals transmitted further over the TPS line to the
Transmitter
which can control the
Blu-ray player
via an IR emitter.
▪
Event Manager usage
: set an action in Event Manager that if the volume control buttons are pressed
on the
Remote controller
, increase or decrease the volume of the analog audio port of the
Receiver
. In
this case you can control the audio device via the Receiver remotely. See the details about the Event
Manager settings in the
Event Manager section.
Advanced IR Functionality
HDMI-TPS-RX220AK can send Little-endian pronto hex IR codes on its IR output port.
It is possible in the following ways:
▪ With Lightware Device Controller software (for more details see Sending pronto hex codes (Little-
endian format) section)
▪ With Event Manager (for more details see Sending pronto hex codes (Little-endian format) and Event
Manager section)
▪ With LW3 protocol command (for more information see the Sending Pronto Hex Codes in Little-endian
Format via IR Port section)
Sending Bigger-endian pronto hex code is also available, see the Sending Pronto Hex Codes in Big-endian
Format via IR Port section.
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