Recognizer - Lightware MMX4x2-HDMI User Manual

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4. Device Concept
Command Injection Mode
In this mode, the matrix works as a TCP/IP <-> RS-232 bidirectional converter. The TCP/IP data signal is
converted to RS-232 data and vice versa. TCP/IP port numbers are defined for the serial ports (TPS and
local) for this purpose. E.g. the default Command Injection port number of the local RS-232 port is 8001. If
data 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 also works in the opposite direction of course and the method is the same
on the serial interface of the TPS port as well.
RS-232 Signal Transmission – Example
The following ways are available for controlling the devices:
▪ The System controller can send TCP messages to the IP:port address of the Matrix, In this case the
control is one-way, the System controller sends commands to the HDTV. You can see the details about
TCP message sending in the Ethernet Message Sending
▪ The System controller sends messages over the LAN port of the Matrix to the given port number. The
Matrix converts the incoming TCP messages to RS-232 commands and transmits over the local
RS-232 port to the HDTV. The local RS-232 port has to be set to Command Injection mode. In this case
the direction of the communication is bi-directional between the Matrix and the System controller, so
the answer of the HDTV is received by the System controller.
MMX4x2 series – User's Manual
section.
Applied firmware package: v1.5.0b8 | LDC software: v2.3.0b1
4.9.2. RS-232 Recognizer
This tool is able to recognize and store the incoming RS-232 message until the previously defined string
(delimiter) is arrived or the timeout elapsed after the last data. The last incoming serial data is stored and it
can trigger an action in Event Manager.
RS-232 Recognizer Example
When the MMX4x2 has an active video signal, the switcher login the VC codec automatically.
When the active signal appears on the output of the MMX4x2, it triggers a bi-directional communication with
the VC codec via RS-232:
ç MMX4x2 (starts the communication on RS-232): PING
æ VC codec (requests the login name): Login name:
ç MMX4x2 (sends the login name): Admin
æ VC codec (requests the password): Password:
ç MMX4x2 (sends the password): Admin
First, configure the recognizer for the serial communication, after that, set the events in the Event Manager.
The RS-232 recognizer settings has to be with LW3 protocol commands (see more information in
RS-232 Message Recognizer section).
Create the following events in the event manager:
E1. When the signal is present on O1 port of the MMX4x2, it sends a message 'PING' on P1 port of RS-232 to
the VC codec. For more details see RS-232 Message Recognizer
E2. Set a condition where Login name: is the recognized RS-232 message. Action is sending serial message
('Admin') on the P1 port to the VC codec.
E3. Set a condition where Password: is the recognized RS-232 message. Action is sending serial message
('Admin') on the P1 port to the VC codec.
For more information about setting the events, see
section.
Event Manager section.
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