4.DeviceConcept
HDMI-TPS-RX110AY series – User's Manual
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Appliedfirmwarepackage:v1.5.0b3 | LDCsoftware:v2.5.9b2
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
IRI/Oconnectionandalsocantransmit/receiveIRsignalviatheTPSinterface.ThesignalisinprontoHEX
format in both cases.
Block diagram of the IR interface
ThemosttrivialusageoftheIRinterfaceisthetransparentmode:signalreceivedorsentonlocalIRports
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
(likeatserialinterfaceintheprevioussection)whereyoucansendIRcommandsoverLAN.Command
injectionmodecanbeturnedonandoffbyinput/outputports.
INFO:
AllsettingsareavailableintheLDCsoftware,seesettingsinthe
section.
INFO:
ThemodulationofoutputIRsignalcanbeturnedofforonbyLW3command,seethe
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.
Thefollowingwaysareavailableforcontrollingthedevices:
▪
Transparent mode
:IRsignalsarereceivedoverthelocalIRinputportofthe
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
:setanactioninEventManagerthatifthevolumecontrolbuttonsarepressed
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
section.
Advanced IR Functionality
DIFFERENCE:
This feature is available only in HDMI-TPS-RX110AY-Plus model.
HDMI-TPS-RX110AY-PluscansendLittle-endianprontohexIRcodesonitsIRoutputport.
Itispossibleinthefollowingways:
▪
WithLightwareDeviceControllersoftware(formoredetailssee
section)
▪
WithEventManager(formoredetailssee
section)
▪
WithLW3protocolcommand(formoreinformationsee
SendingProntoHexCodesinLittle-endian
Sending Bigger-endian pronto hex code is also available, see
Sending Pronto Hex Codes in Big-endian
.