4. Device Concept UMX-TPS-TX100 series – User's Manual 43
Serial Interface
Technical Background
Serial data communication can be established via the local RS-232 port (Phoenix connector) or via the TPS
rates are different, the CPU does the conversion automatically between the ports). The RS-232 port can be
Block diagram of the serial interface
1
Control mode.
2
Pass-through mode.
3
Command Injection mode.
INFO: RS-232 Tab section.
Only one mode can be used at the same time: Control mode, or Pass-through mode, or 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 local RS-232
port to the TPS output port and vice versa inside the transmitter.
Control Mode
The incoming data from the given port is processed and interpreted by the CPU. The mode allows to control
setting.
Command Injection Mode
In this mode, the transmitter works as an RS-232 bidirectional converter. The TPS signal is converted to
purpose. E.g. the default Command Injection port number of the local RS-232 port is 8001. If a command
is coming from the TPS interface which addresses to the port no. 8001, it will be transmitted to the Tx pin
of the local RS-232 port. That works in the opposite direction of course and the method is the same on the
serial interface of the TPS port as well.
The Concept
The System controller can send commands to the transmitter and it is able to remote control the projector
through the TPS receiver via RS-232.
Settings
▪ System controller: wireless IP connection to the same Ethernet as the transmitter is connected to. Use
certain IP:port address.
▪ Transmitter: set the RS-232 mode to Command Injection on TPS output port. Set the further parameters
transmit the RS-232 data toward the receiver.
▪ Receiver: set the RS-232 mode to Pass-through on RS-232 port.
▪ Projector
cable with the proper wiring.
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