Control Features; Serial Interface - Lightware HDMI-TPS-RX110AY Series User Manual

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4.DeviceConcept
4.6. Control Features
HDMI-TPS-RX110AY has several control functions. This chapter is about to present the possibilities through
two simple layout examples.
System Control via Local Ethernet (Example)
Thefollowingwaysareavailablefordevicecontrol:
▪ The System controller can communicate with the Receiver via the TPS line of the Transmitter with using
LW2/LW3protocolcommands.
▪ The System controller can communicate directly with the ProjectorviatheirIP:portaddress.
▪ The Receivercansendacommands(e.g.asanactionbytheEventManager)totheIP:portaddressofthe
ProjectorbyusingLW3protocolmethods.
System Control via Local RS-232 (Example)
Thefollowingwaysareavailableforcontrollingthedevices:
▪ The System controllercancommunicatewithLW2/LW3protocolcommandsviathelocalRS-232port
of the Receiver.
▪ The System controllercansendTCPorUDPmessagestotheIP:portaddressoftheReceiver by using
LW3protocolmethods.
▪ The ReceivercansendLW3protocolcommandstotheHDTV via the local RS-232 port.
HDMI-TPS-RX110AY series – User's Manual
4.6.1. Serial Interface
Technical Background
Serial data communication can be established via the local RS-232 port (Phoenix connector) or via the TPS
lines.TheRS-232ports–whichareconnectedtotheCPU–canbeconfiguredseparately(e.g.iftheBaud
rates are different, the CPU does the conversion automatically between the ports). The RS-232 port can be
switched to Pass-through mode, Control mode, or Command Injection mode;seethefigurebelow.

ATTENTION!
Command Injection mode. If you choose one of them, TPS serial link and local RS-232 port will operate
in the same mode.
Pass-through Mode
In pass-through mode, the given device forwards the data that is coming from one of its ports to another
same type of port. The command is not processed by the CPU. Incoming serial data is forwarded from TPS
input port to local RS-232 port and vica versa inside the receiver.
Control Mode
The incoming data from the given port is processed and interpreted by the CPU. The mode allows to control
thereceiverdirectly.LW2orLW3protocolcommandsareaccepted–dependingonthecurrentportsetting.
Appliedfirmwarepackage:v1.4.0 | LDCsoftware:v2.4.0b3
Only one mode can be used at the same time: Control mode, or Pass-through mode, or
Block diagram of the serial interface in pass-through mode
Block diagram of the serial interface in control mode
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