Gpio Interface - Lightware MMX8x4-HT Series User Manual

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3. Product Overview
Disconnect
This mode is for control the third-party device from the Matrix. In this
case, the Matrix does not receive RS-232 messages but sends serial
data from the CPU.
MAIN MENU
MMX8x4-HT400MC
LIVE > System Settings
POWER Input Ports
Output Ports
USB
Control
Multiport HDMI and TPS Matrix Switcher
MMX8x4-HT420M
The concept
Powering on the HDTV via RS-232 message from the matrix.
Settings
The Matrix can send RS-232 commands over the local RS-232 ports
(P1 or P2) to the HDTV. You can see the details about serial message
sending in the Message Sending via RS-232 Serial Port
Control mode
The incoming data from the given port is processed and interpreted by
the CPU. The mode allows to control the matrix directly. LW2 or LW3
protocol commands are accepted – depending on the current port
setting.
RS-232
MAIN MENU
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POWER Output Ports Input Ports
Control USB
Multiport HDMI and TPS Matrix Switcher
MMX8x4-HT420M
System controller
Application example of control mode
The concept
The System controller sends commands to the Matrix, which set the
video and audio properties. The Matrix executes the commands and
transmits the video signal to the sink.
Settings
The System controller can send LW2 or LW3 commands to the local
RS-232 port (P1 or P2) of the Matrix. In control mode, the commands
are processed in the device. This function makes possible to set the
crosspoint or a volume level etc.
Command injection mode
RS-232
HD TV
Application example of command injection mode
section.
HDMI
MMX8x4-HT400MC
HD TV
MMX8x4-HT series – User's Manual
In this mode, the matrix works as an RS-232–Ethernet bidirectional
converter. The Ethernet packets are converted to RS-232 data and vice
versa. Unique TCP/IP port numbers are defined for the serial ports for
this purpose.
E.g. the default Command Injection port number of the local RS 232
port (P1) is 8001. If a command is coming from the LAN interface
which is address to the port no. 8001, it will be transmitted to the Tx
pin of the local RS-232 port. That also works in the opposite direction.
In MMX8x4-HT420M model, the method is the same on the serial
interface of the TPS port. Sending message from a remote TPS
device via TPS port to the RS-232 port of the matrix is also possible,
but connecting the Ethernet link to the TPS port with patch cables is
needed.
See the RS-232 settings in Factory Default Settings
LAN RS-232
MAIN MENU
LIVE > System Settings MMX8x4-HT400MC
POWER Input Ports
Output Ports
USB Control
Multiport HDMI and TPS Matrix Switcher
System controller MMX8x4-HT420M
The concept
The System controller can send commands (input/output switching,
control functions, etc.) to the matrix and is able to remote control the
HDTV via RS-232.
Settings
Matrix: The RS-232 interface of the TPS OUTPUT 1 (P4) is in Command
Injection (CI) mode. Set the further parameters (Baud rate, Data bits,
etc.) in accordance with the specifications of the television.
All settings are available in the LDC software, see
TTL Serial
The 2-pole Phoenix connector can be both infra or serial output.
For TTL data transmission the destination port numbers are 8003
and 8004. No setting required for configuring the interface, it works
automatically.
Logic low level
Logic high level
Serial Output Voltage Levels (TTL and RS-232)
*Using a receiver with at least 1k impedance to any voltage between
0V and 5V to get the voltages.
3.8.4. GPIO Interface
INFO: Only the MMX8x4-HT420M model has GPIO connector.
section. The GPIO (General Purpose Input/Output) port is a multifunctional
input/output interface to control the transmitter or third-party devices
and peripherals. You can establish connection between the controller/
controllable device and the transmitter by the 8-pole Phoenix
connector. Six pin's direction is configurable independently based on
needs of the application.
HD TV
GPIO Options - Example
HDMI
MAIN MENU
LIVE > System Settings
POWER Input Ports
Output Ports
Control USB
RS-232 Tab section.
PC MMX8x4-HT420M
28
TTL* RS-232
0 .. 0.25V 3 V .. 15 V
4.75 .. 5.0V -15 V .. -3 V
Relay box Motorized curtain
GPIO
TPS HDMI
MMX8x4-HT400MC
Multiport HDMI and TPS Matrix Switcher
TPS receiver
Projector