Tps Interface; Serial Interface; Technical Background - Lightware MMX4x2-HDMI User Manual

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4. Device Concept
4.8. TPS Interface
DIFFERENCE:
This section refers to the MMX4x2-HT200 model only.
The MMX4x2-HT200 model is built with TPS (Twisted Pair Single) interface which are using HDBaseT
technology. It means the unit receives video, audio, Ethernet, RS-232, and Infrared signals via a single CATx
cable.
TPS Interface Working Modes
The TPS working mode between the transmitter and the receiver is determined by the mode set in them.
Both devices TPS mode settings together determine the finally established TPS transmission mode.
The following TPS modes are defined in the receiver:
▪ Auto: The TPS mode is determined automatically.
▪ HDBaseT: Ideal for high resolution signals up to 4K.
▪ Long reach: Ideal for big distances up to 1080p@60Hz with extended cable lengths.
▪ LPPF1*: Only RS-232 communication is transmitted (@ 9600 baud).
▪ LPPF2*: Only RS-232 (@ 9600 baud) and Ethernet communication are transmitted.
* LPPF: Low Power Partial Functionality.
LPPF1
LPPF1 LPPF1
LPPF2 LPPF1
HDBaseT LPPF1
Long reach LPPF1
Auto LPPF1
** If there is valid HDMI/DVI signal is on the TX side, the TPS mode will be HDBaseT on both side. If
the transmitter does not transmits HDMI/DVI signal, the TPS mode will be changed to LPPF2 or LPPF1
automatically. Long reach mode is not available when both sides are set to Auto mode.
When using automatic operation mode selection, the device determines the mode of operation. If both half
of the pair are set to Auto mode, the source side is the initiator. It will negotiate each state transition with its
sink side partner.
When one of the devices is configured to manual operation mode selection, the other device may be placed
in automatic mode. In this case, the mode transition negotiation is initiated by the host-managed device and
the auto-mode device follows through. The allowed cable lengths and resolutions are listed in the
Extension Distances section.
Selected mode on RX side
LPPF2 HDBaseT Long reach
LPPF1 LPPF1 LPPF1 LPPF1
LPPF2 LPPF2 LPPF2 LPPF2
LPPF2 HDBaseT Long reach HDBaseT
LPPF2 Long reach Long reach Long reach
LPPF2 HDBaseT Long reach HDBaseT **
Applied firmware package: v1.5.0b8 | LDC software: v2.3.0b1
MMX4x2 series – User's Manual
4.9. RS-232 Serial Interface
4.9.1. Technical Background
TM
ATTENTION! Only MMX4x2-HT200 model has TPS serial link port.
Serial data communication can be established via the local RS-232 port (Phoenix connector) or via the TPS
port. The RS-232 ports – which are connected to the CPU – can be configured separately (e.g. if the Baud
rates are different, the CPU 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.
Auto
The following settings are defined:
1
2
3

INFO: All settings are available in the LDC software, see details in the
Only one mode can be used at a time: Control mode, or Command Injection mode, or can be disconnected.
You can set different modes for the TPS serial link and local RS-232 port.
Control Mode
Maximum
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.
Block diagram of the MMX4x2-HT200 serial interface
The serial port is in Control mode.
The serial port is in Command Injection mode.
The serial port is Disconnected.
RS-232
28
section.