SY MFT-31C User manual

SY Electronics Ltd., 7 Worrall Street, Salford, Manchester, M5 4TH, UK
Tel: [phone] – Web: sy.uk
User Manual
MFT-31C
and
MFT-31V
Multi-Format Wall-plate Transmitters
3 Inputs to 1 HDBaseT Output
2x HDMI + USB-C to HDBaseT
or
2x HDMI + VGA to HDBaseT (with Up/Down Scaler)

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These wall-mounting Multi-Format 4K30 HDBaseT Transmitters are ideal for classroom and
meeting room environments where a quick and simple connection from a laptop, mobile or any
other devices is required.
Both versions have three video inputs - Two HDMI inputs together with either USB-C (slimport)
or VGA input, with a single HDBaseT output. The MFT-31V/VE version has a built-in Scaler,
ensuring that different resolution inputs can be scaled to a fixed resolution output.
Features
•2x HDMI inputs
•1x USB-C video input or 1x VGA input (with Audio)
•HDBaseT output (70m @ 1080p, 40m @ 4K30)
•Up/Down output scaler to Max. of 4K30 (MFT31-V)
•RS232 (bi-directional) for control and as Pass-through
•Built in IR Eye (IR receiver), or external IR Eye
•MFT-31C supports IR learning for Display On/Off control
•Display On/Off control via RS232, IR and CEC (Auto or push Button)
•Auto / Manual input selection
•Available in Brushed aluminium (or White option)
Panel Descriptions
Front
Figure 1 - SY-MFT-31C
Figure 2 - SY-MFT-31CE
Figure 3 - SY-MFT-31V
Figure 4 - SY-MFT-31VE

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Name
Description
IR
Built-in IR Sensor for IR data to remote receiver
HDMI1 & HDMI2
HDMI input ports, connect to HDMI sources
USB-C
USB Type C input connector - MFT-31C / MFT-31CE only
VGA
VGA input connector - MFT-31V / MFT-31VE only
AUDIO IN
Stereo audio input for the VGA input - MFT-31V / MFT-31VE only
DISPLAY ON/OFF
Turns the display ON or OFF via CEC or RS232 (after programming)
SOURCE / AUTO
Manual Input source selection or Auto input detection mode
LINK LED
Indicates a successful data link with the HDBaseT receiver
U-C LED
USB-C input is selected - MFT-31C / MFT-31CE
V LED
VGA input is selected - MFT-31V / MFT-31VE
H1 LED
HDMI 1 input is selected
H2 LED
HDMI 2 input is selected
Rear
Figure 5 - MTF-31 Rear Panel
Name
Description
RS232
RS232 port for configuration and communication via remote
receiver
DC IN
24V DC power supply input (orange)
IR IN
External IR Eye input connection
HDBT OUT (PoC)
HDBaseT output (side entry) to the receiver with Power-over-Cable
(PoC) in either direction

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System Connection
System Diagram
Connection Procedures
1. Connect the HDMI sources to the HDMI 1 and HDMI 2 inputs.
2. For the SY-MFT-31C, any device that has a Type C USB connector may be connected to
the USB-C input. (Slimport video signals supported – 4K30 4:4:4 maximum resolution).
3. For the SY-MFT-31V, any device that has a VGA connector may be connected to the
VGA input, together with associated Audio.
4. Connect the HDBaseT output to an HDBaseT receiver, using cat6 cable.

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5. Connect the 24V DC PSU to the MFT-31 or it can be powered from the appropriate
HDBaseT receiver (with PoC).
6. If required, an RS232 controller may be connected to the rear of the MFT-31 to control
the MFT-31 as well as for control of the remote display device.
7. If required, an IR Eye may be connected to the rear of the MFT-31 to control the remote
display device.
IMPORTANT
Since the MFT-31 products generate some heat during normal operation, the following
notices must be observed to ensure that MFT-31 products remain at a comfortable
temperature during use:
•DO NOT block the ventilation holes on the rear of the MFT-31.
•REMOVE ALL cable entry knock-outs in the mounting back-box to allow the
generated heat to escape.
•Ensure that there is adequate air flow and ventilation around the rear MFT-31
products.
Controlling the MFT-31
The MFT-31 has two illuminated buttons that indicate their respective states when there is at
least one active source present:
Button
Button Lit
Button Un-lit
DISPLAY ON/OFF
Display ON
Display OFF
SOURCE / AUTO
Auto Selection Mode
Manual Selection Mode
Using the SOURCE / AUTO Button
To toggle between MANUAL and AUTO modes, hold down the SOURCE/AUTO button for 3
seconds until the desired mode is selected.
Manual Selection Mode: Press to cycle through all three inputs.
Auto Selection Mode: Each button press will index through active inputs only. A new active
input is automatically selected; whilst de-activating the current input forces selection of the next
available input.
When there are no active inputs detected then all the input source LEDs will be off, and the
SOURCE/AUTO and the ON/OFF button will be inactive (only a brief flash when pressed).
Also see “Timeout for Auto Display Off Command” in the next page.
Using the DISPLAY ON/OFF Button
The Display ON/OFF button can be used to turn a display device on or off, either by using CEC
commands or programmed RS232 commands (or IR commands for MFT-31C/CE).
CEC Display Power Control
The CEC commands to change the display power status (on/off) are built-in to the MFT31 by
default. Hence if the display device is CEC enabled, the ON/OFF button can switch the display
on/off through the HDMI CEC line. RS232 & CEC commands to the MFT31 may be used for
controlling the display unit at any time.

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RS232 Display Power Control
To use the RS232 feature of the Display On/Off button, the RS232 commands for the display
device must be programmed into the MFT31. Once done, the correct RS232 power command
will be sent to the display device each time the ON/OFF button is pressed.
When programming the Display On/Off RS232 commands (no parity and one stop bit), only use
the most appropriate version of the commands given in the following table:
Function
ASCII Display Command
Binary Display Command
Display On
/+0x:aa
/-0x:yy
Display Off
/+1x:bb
/-1x:zz
Where:
•x is the baud rate for the display device:
0 = 2400 1 = 4800 2 = 9600 3 = 19200
4 = 38400 5 = 57600 6 = 115200
•aa is the ASCII command to turn the display on
•bb is the ASCII command to turn the display off
•yy are hexadecimal representation of the binary values to turn the display on
•zz are hexadecimal representation of the binary values to turn the display off
Examples:
To set the LG power control commands using ASCII (at 9600 baud):
Display On: /+02:ka 00 01
Display Off: /+12:ka 00 00
Note that  represents a single carriage-return character (0x0d), which is required for the LG
command set.
These same commands can also be sent using binary mode commands:
Display On: /-02:6b 61 20 30 30 20 30 31 0d
Display Off: /-12:6b 61 20 30 30 20 30 30 0d
Note that there must be a space between each hexadecimal value, and that each hexadecimal
value must consist of two ASCII characters.
IMPORTANT
After programming the Display On and Display Off commands, press the ON/OFF button on the
MFT31 two or three times to clear any invalid data that the display device may have received
whilst programming the commands. Once this is done, and the display device is responding
correctly, the ON/OFF commands will continue to function as expected.
Time-out for Auto Display Off Command
The following command will set the timeout value for the Display Off CEC and RS232 commands.
The timeout starts as soon as there are no more video inputs detected in the Auto Mode. When
a new signal is detected the timeout is automatically cancelled. The maximum timeout value
allowed is 200 minutes. A value of zero will set the timeout value to 5 seconds.

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Display Off Timeout setting
RS232 command
Set timeout value from 0 to 200 minutes (default 2)
/x0:nnn
LINK LED
The LINK LED indicates a correct communication with the remote HDBaseT receiver.
SOURCE Input LEDs
The three LEDs by the SOURCE/AUTO button, indicate the currently selected input with an active
input (Flashing LED if input not active). If there are no inputs detected, then all the source input
LEDs and the SOURCE / AUTO button LED will be off.
IR Pass-Through
The MFT-31 also supports IR pass through to the HDBaseT receiver, which can be done either by
using the built-in IR sensor or by connecting an IR Eye to the rear of the MFT-31.
Always check the wiring details for the IR Eye before wiring it to the MFT-31 – The following table
only gives the most common configuration for 3.5mm jack plugs:
3.5mm Connector Wiring
IR Signal Usage
Tip
+5V
Ring
Data
Sleeve
Ground
MFT-31C IR Learning Feature
The MFT-31C / CE feature IR learning of the Display On/Off button commands:
1. Press and hold both the DISPLAY ON/OFF and SELECTION/AUTO buttons until the both
the button LEDs flash alternately.
2. Use the DISPLAY ON/OFF button to choose the command to be set:
a. Rapid flashing indicates that DISPLAY ON mode is selected
b. Slow flashing indicates that DISPLAY OFF mode is selected
3. Point the IR remote at the IR sensor and press the respective button on the IR remote.
4. The DISPLAY ON/OFF button LED will stop flashing and remain lit to indicate that the
IR command has been learnt.
5. Press the SOURCE/AUTO button to exit the IR learning mode.
Note that the IR Learning function will self-terminate after 30 seconds of inactivity.
To use this feature, an IR emitter must be plugged into the IR out of the HDBaseT receiver and
located so as to give a direct line of sight with the display device.
RS232 Commands
All RS232 commands should be sent as a single packet with these settings:
Baud rate: 9600
Parity: None
Data bits: 8
Stop bits: 1

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Note: The MFT-31V/VE versions can be set different to different baud rates (choice of 7), see
below “Control Port Baud Rate” for more details.
The following sections detail the RS232 commands by category.
MFT-31 System Commands
System Command
RS232 Command
Get Firmware Version
50699%
Restore Factory Defaults
50617%
Disable Display On/Off Button
50740%
Enable Display On/Off Button (default)
50741%
Input Selection
Input Source
RS232 command
Switch to HDMI 1
50701%
Switch to HDMI 2
50702%
Switch to USB-C (MFT-31C and MFT-31CE)
50704%
Switch to VGA (MFT-31V and MFT-31VE)
50704%
Enable Auto Selection Mode
50710%
Enable Manual Selection Mode
50711%
Return Switching Mode
50712%
EDID Management
The input resolution (EDID setting) can be set using RS232 commands to one of the options given
in the following table. Please note that the EDID setting commands are used differently for the
MFT-31C and MFT-31V models.
Preferred Input Video
EDID
HDMI Audio Mode
MFT-31C RS232
Command
MFT-31V RS232
Command
720p
PCM 2ch
50768%
―
720p
Dolby/DTS PCM 6ch
50769%
―
1360x768@60
PCM 2ch
―
50769%
1080p
PCM 2ch
50770%
50770%
1080p
Dolby/DTS PCM 6ch
50771%
―
4K30
PCM 2ch
50772%
50771%
4K30
Dolby/DTS PCM 6ch
50773%
―
1280x720@60 (DVI)
None
50774%
50772%
1920x1080p@60 (DVI)
None
50775%
50773%
1920x1200p@60
PCM 2ch
50776%
50768%
3840x2160@60 (4:2:0)
PCM 2ch
50777%
―

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Preferred Input Video
EDID
HDMI Audio Mode
MFT-31C RS232
Command
MFT-31V RS232
Command
1280x720@60
PCM 2ch
―
50774%
1280x800@60
PCM 2ch
―
50775%
Get TV EDID
―
―
50776%
Select Default EDID
―
―
50777%
Copy EDID from USB
As per User EDID
data file
―
50781%
Select User EDID
Memory
As per User memory
EDID
50782%
50782%
EDID Bypass
As per Display EDID
50783%
50783%
Return current EDID
setting
Depends on EDID
setting
50784%
50784%
When setting one of the fixed input EDID values, be sure that the source equipment can produce
that setting. Otherwise, a lower resolution could be chosen instead.
User EDID (50782%) requires a valid EDID data file to be sent to the MFT-31 device.
EDID Bypass (50783%) presents the display EDID directly to the video source devices.
The factory default setting is 1080p PCM 2ch.
CEC Commands
The MFT-31 also supports sending of a few common CEC commands using RS232 command
code. Specific CEC command can also be sent from the MFT-31. The RS232 commands are as
given in the following table. Please note that only CEC enabled devices that have the specified
logical address will respond to CEC commands.
CEC Command
RS232 Command
Volume Up (MFT-31C only)
50730%
Volume Down (MFT-31C only)
50731%
Volume Mute Toggle (MFT-31C only)
50732%
Display On
50733%
Display Off
50734%
Send Specific CEC Command
CEC<xx:xx:xx:…>
The last command given in the above table is used to send a specific CEC command, where
xx:xx:xx:… represents the CEC data in hexadecimal format separated by colons.
Example: CEC<40:44:41>Display Volume Up pressed
CEC<40:45> Button released (Display Volume Up in this example)
Always refer to any relevant documentation for the device that the CEC command is intended
for, as incorrect usage could produce unexpected results.

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HDCP Management
HDCP Mode
RS232 Command
HDCP Active (pass - Same as source HDCP) (default)
50706%
HDCP Cascade mode (Off)
50707%
HDCP Force On (V1.4)
50708%
Get HDCP Mode (On/Off Status)
50709%
Get HDCP Status (V1.4 or V2.2)
50713%
Update HDCP 2.2 Key (MFT-31V Only)
50735%
Scaler Commands Specific to the MFT-31V / VE Only
Output Scaling Resolutions
The MFT-31V/VE also support output scaling (up/Down). The HDBaseT output can be set to a
particular resolution, using one of the following commands. Always be sure that the display
device is able to display the chosen resolution.
Note: The default output resolution is set to 1080p
Output Resolution
RS232 Command
1024x768 @60Hz
50715%
1280x720 @50Hz
50716%
1280x720 @60Hz
50717%
1360x768 @60Hz
50718%
1600x1200 @60Hz
50719%
1920x1080p @50HZ
50720%
1920x1080p @60Hz (default)
50721%
1920x1200 @60Hz
50722%
3840x2160 @30Hz
50723%
VGA Audio and signal Control
Output Resolution
RS232 Command
Mute VGA Audio Input
50726%
Unmute VGA Audio Input
50727%
Get VGA Audio Mute Status
50728%
Auto Adjust VGA Input
50714%
Control Port Baud Rate
The MFT-31V/VE (VGA versions) also provide the following baud rate options for the RS232
control port. (The MFT-31C/CE is fixed at 9600 baud only).