3. Product Overview
MMX6x2-HT series – User's Manual
19
3.8.2.
Serial Interface
Technical background
Serial data communication can be established via the local RS-232 port (Phoenix connector) or via the TPS
lines. The RS-232 ports – which are connected to the microcontroller – can be configured separately (e.g. if
the Baud rates are different, the microcontroller does the conversion automatically between the ports). The
RS-232 port can be switched to
Control mode
,
Command Injection mode
, or can be
Disconnected
; see the figure
below.
The block diagram of the Serial interface
All settings are available in the LDC software, see
section.
The following settings are defined:
1
The TPS serial link port is in
Control mode
.
2
The TPS serial link port is in
Command Injection mode
.
3
The TPS serial link port is
Disconnected
.
4
The Local serial port is in
Control mode
.
5
The Local serial port is in
Command Injection mode
.
6
The Local serial port is
Disconnected
.
Control mode
The incoming data from the given port is processed and interpreted by the Microcontroller. The mode allows
to control the matrix directly. LW2 or LW3 protocol commands are accepted – depending on the current port
setting.
Command injection mode
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 (TPS
and local) for this purpose. E.g. the default Command Injection port number of the local RS 232 port is 8001.
If a command is coming from the LAN interface which is address to the port no. 8001, it will be transmitted
Link RS-232 / TCP converter
Device Control (TPS serial link)
TPS serial
link
RS-232
local
Mode switch
TPS Link
LAN
port
Local RS-232 / TCP converter
Device Control (Local serial)
CPU
Mode switch
Local
1
2
3
4
5
6
14
25
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 ports. See the RS 232 settings in
section.
ATTENTION!
The serial data cannot be routed from an RS-232 port to another RS-232 port.
RS-232 signal transmission – example
RS-232 signal transmission
The concept
The Touch controller can send commands (input/output switching, control functions, etc.) to the matrix and
is able to remote control the projector via RS-232.
Settings
▪
Touch controller
: wireless IP connection to the same Ethernet as the matrix is connected to. Use a
dedicated software tool (e.g. a terminal) which is suitable for sending commands via TCP/IP to a
certain IP:port address.
▪
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 projector.
See
section.
▪
Receiver:
set the RS-232 switch to Normal position. The receiver will transmit the RS 232 data between
the TPS input port and the RS-232 port.
▪
Projector:
note the RS-232 port setting that is specified by the Manufacturer. Connect a suitable serial
cable with the proper wiring.
Command sending
▪
You can send LW3 protocol commands to the
192.168.0.100:6107
port to control the matrix.
▪
You can send LW2 protocol commands to the
192.168.0.100:10001
port to control the matrix.
▪
You can send commands to the
192.168.0.100:8004
port to control the projector. This port number
means the RS-232 interface of the TPS output port (TPS O1).
INFO: Above values are examples and based on factory default settings.
Touch screen
LAN
TPS OUT
RS-232
MMX6x2-HT220
TPS receiver
Projector
Ethernet
SOURCES
MMX6x2-HT220
Multiport HDMI and TPS Matrix Switcher
USB
CONTROL
DESTINATIONS
ENTER
LIVE
48V
RESET
5V
ESC
1
2
1
2
3
4
5
6
TTA
AK
KEE
A
AU
UTTO
O
TTA
AK
KEE
A
AU
UTTO
O
LLO
OA
AD
D
PPR
REESSEETT
LLO
OA
AD
D
PPR
REESSEETT
SSA
AVVEE
PPR
REESSEETT
SSA
AVVEE
PPR
REESSEETT
C
CO
ON
NTTR
RO
OLL
LLO
OC
CK
K
LLO
OC
CK
K
O
OU
UTTPPU
UTT