SY Electronics SMFS-81-18G User manual

SY Electronics Ltd., 7 Worrall Street, Salford, Greater Manchester, M5 4TH, UK
Tel: [phone] – Web: sy.uk
User Manual
SMFS-81-18G
4K 18G Multi-Format
8x1+1 Seamless Scaler Switch
(Inputs: 6x HDMI 2.0, 1x DisplayPort, 1x VGA)
(Outputs: Mirrored 1x HDMI, 1x HDBaseT)
(Built-in Test Pattern generator)

sy.uk 2 V1.0
Contents
FEATURES 4
CONNECTORS AND CONTROLS 4
Front 4
Rear 5
INSTALLATION AND VENTILATION 5
USING THE SY-SMFS81-18G 5
Making Video Selections 6
Connecting to the MIC / 48V / Line Input 6
Front Panel Menu Options 6
EDID Options 7
CONNECTING TO THE IR PORTS 7
RS232 COMMANDS 7
VIDEO COMMANDS 8
Video Selections 8
Video Output Blanking 8
Video Output Freeze 8
Video Output HDCP Configuration 9
Video Output Signal Format 9
Test Pattern Mode 10
Input Video Format 10
AUDIO COMMANDS 10
Audio Routing 10
Audio Input Mute 11
Volume Setting 11
I/O CONFIGURATION RS232 COMMANDS 12
Interfacing to the Digital I/O Ports 12
Using the Digital Inputs 12
Using the Digital Outputs 12
SYSTEM COMMANDS 13
Get Device Size 13
Device IP Settings 13

V1.0 3 sy.uk
Get Firmware Version 14
System Reset 14
WEBGUI CONTROL 14
Switcher control 15
Input selection: 15
Audio Config: 15
Video Config: 15
Microphone: 16
Speaker: 16
EDID Mode: 16
Resolution: 16
Receive(Hex): 16
Send(Hex): 16
IP Config: 16
Bottom button row: 17
PC TOOL 18
Input selection: 18
Video Config: 18
Audio Config: 18
Microphone: 19
Speaker: 19
Output Resolution: 19
Input Resolution: 19
I/O Configuration: 19
Reading the Input Level: 19
Setting the Output Logic Level: 19
EDID Mode: 19
SPECIFICATIONS 20
General 20
Video and Audio 20
Digital I/O Ports 21
Power Supply 21
Environmental and Physical 20
Package Contents 21

sy.uk 4 V1.0
The SMFS-81-18G is a seamless multi-format scaling switcher with 6 HDMI inputs, 1 DisplayPort
input and 1 VGA input. It provides two mirrored outputs – HDMI for local display and HDBaseT
output for a remote HDBaseT receiver and display. Each input can be individually set to use its
own embedded audio or any one of the 8 external analogue audio inputs. Built-in multi
resolution Test Pattern generator is also a great feature. This multi-format switcher is suitable
for a wide variety of applications, for example, classrooms, lecture halls, meeting rooms, etc.
Features
•All resolutions up to 4K60 4:4:4 18G supported on all HDMI inputs
•Powerful output Scaler – Resolution up to 4K60 4:4:4
•EDID options of 6 built-in settings, or auto (EDID bypass) mode
•HDBaseT output with mirrored HDMI output
•8x video inputs – 6x HDMI, 1x DisplayPort, 1x VGA
•8x audio analogue inputs
•1x microphone input
•Balanced stereo audio output
•Stereo speaker output – 2x 20W max.
•Built-in Test Pattern generator
•Bypass RS232 and IR IN/OUT for HDBaseT port
•Control – Front panel, RS232, IR, LAN
Connectors and Controls
Front
Name
Description
LCD
Displays the current input selection and audio mode. Also displays the menu
options.
Power LED
Lit when the SMFS81-18G is powered
IR Sensor
IR port for the IR remote controller(Reserved)
Input selection buttons
Press to select the desired input
MIC button
Turn on or off the microphone input.
Turn on, the MIC button LED light on, turn off MIC button LED light off.
Long press this button to enter microphone volume pre-scale controlling
with volume knob
VIDEO button
Turn on or off the video input.
When turn on, the VIDEO button LED light on.
AUDIO button
Turn on or off audio input, include external L+R input and HDMI embedded
audio input, not include Microphone audio input
When turn on, the AUDIO button LED light on.
MUTE LED
When Speaker output muted, the MUTE LED light on.
MENU button
Opens the menu options on the LCD

V1.0 5 sy.uk
Name
Description
↔ button
Cycles through the available options for the current menu section
ENTER button
Press to set the current selection
VOLUME control
Sets the volume level for the speaker output or set microphone pre-scale
volume. The Line out volume is not affected by this control.
Rear
Name
Description
LAN RJ45
WebGUI or LAN port for controlling the SMFS81-18G
RS232-CTL
RS232 port for controlling the SMFS81-18G
I/O Control
Two Digital Inputs and Two Digital Outputs – RS232 controlled
Analogue audio inputs
Eight stereo analogue audio inputs assignable to any input
Microphone mode switch
Set the operating mode of the Microphone input connector
•Mic level (dynamic mics),
•48V (condenser mics) or
•Line level (amplified mics)
Microphone input connector
Balanced input for the microphone audio source
Speaker output connector
Balanced stereo speaker outputs for 8W speakers
LINE OUT connector
Balanced stereo line level audio output
RS232-1
RS232 port for sending commands to a local display device
RS232-H
RS232 port dedicated to the HDBaseT output
IR OUT
IR output from HDBaseT port
IR IN
IR input from HDBaseT port
HDMI inputs 1 to 6
HDMI inputs for input buttons 1 to 6
DisplayPort input
DisplayPort input for input button 7
VGA input
VGA input for input button 8
SERVICE USB port
For service personnel only
HDMI Output
HDMI output for the local display
HDBaseT Output
HDBaseT output for the remote display
Power input with switch
Mains voltage input connector with power switch
Installation and Ventilation
The SY-SMFS81-18G generates heat, the unit must be installed to allow that heat to escape.
There must be an air gap of at least 1U above the unit and the side ventilation slot must never
be obstructed.
Using the SY-SMFS81-18G
Connect the desired video sources to their respective input connectors and connect the desired
output display devices. Connect any optional inputs and outputs such as audio, speakers, RS232
LAN or IR. Power up the switcher by connecting the IEC main input connector and switching on

sy.uk 6 V1.0
at the power switch on the rear of the switcher.
Please note that the SY-SMFS81-18G does not support HDMI signals that use the 4:2:0 colour
space.
Making Video Selections
Video selection are made from the front panel by pressing the respective input button. The
button for that input will light up and the LCD will also show the selected input number and type
along with the current audio input selection assigned to that input.
Connecting to the MIC / 48V / Line Input
Care must be taken when setting the MIC / 48V / Line mode switch as setting this switch to 48V
may cause damage to equipment that is not intended to accept 48V.
The following table details the correct balance and unbalanced wiring for each mode:
Mode
Balanced
Unbalanced
MIC
48V
LINE
Front Panel Menu Options
The menu is only shown on the LCD panel after pressing the MENU button. The menu options
will revert to the normal display mode after 5 seconds of no buttons being pressed.
Each press of the MENU button will select the next top level menu item. The end of the menu is
indicated by The End being shown on the LCD panel.
Press the SELECT button to change between the submenu options. When the desired option is
displayed, press the ENTER button to enable that option.
The menu structure of the SMFS81-18G is as follows:
Resolution
3840x2160@60, 3840x2160@50, 3840x2160@30, 1920x1200@60, 1920x1080@60,
1920x1080@50, 1600x1200@60, 1360x768@60, 1280x720@60, 1280x720@50,
1024x768@60, Auto
Set Input EDID
3840x2160@60, 3840x2160@30, 1920x1080@60, 1280x720@60, 1920x1200@60,
Manual, Auto

V1.0 7 sy.uk
Set Audio Source
HDMI Inputs 1 to 6 and DisplayPort:
Embedded, L/R 1, L/R 2, L/R 3, L/R 4, L/R 5, L/R 6, L/R 7, L/R 8
VGA Input: L/R 1, L/R 2, L/R 3, L/R 4, L/R 5, L/R 6, L/R 7, L/R 8
HDCP
Output HDCP Setting:
Off, Auto, 1.4, 2.2
Key
Front Panel Locking:
Unlock, Lock
Test Pattern
Output Test Pattern Setting:
Off, On
The End – There are no more menu options.
The Resolution menu sets the video output resolution for the HDMI and HDBaseT outputs.
However, when using the 4K60 or 4K50 options, the HDBaseT output will be set to 4K60/50
YPbPr 4:2:0 while the HDMI output will be 4K60/50 RGB 4:4:4.
The Set Input EDID menu sets the input EDID for the currently selected video input. To set for
another input, select that input first.
EDID Options
Each of the input EDID settings can be selected either from the LCD menu screen or by using
RS232 commands. The following EDID options are available for each input:
•4K60 – 3840x2160p @ 60Hz
•4K30 – 3840x2160p @ 30Hz
•1080p – 1920x1080p @ 60Hz
•720p – 1280 x 720p @ 60Hz
•1920x1200 @ 60Hz
•Auto – EDID Bypass Mode – Uses the display EDID
Connecting to the IR Ports
The IR IN and IR OUT ports on the rear of the SY-SMFS81-18G are for use with the HDBaseT
receiver. The following table details the wiring details for the IR input and output ports:
3.5mm Jack Terminal
IR Eye (Receiver)
IR Bud (Emitter)
Tip
IR Signal
IR Signal
Ring
5V
5V
Sleeve
Ground
No Connection
RS232 Commands
The ASCII commands given in this section use the following port settings:
Baud Rate: 57600
Data Bits: 8
Parity: None
Stop Bits: 1

sy.uk 8 V1.0
Notes:
1. All commands in this section are always terminated with the ASCII carriage-return
character, 0x0d. This is represented by the  symbol in each command.
2. All responses are always terminated with the ASCII carriage-return and line-feed
sequence (0x0d 0x0a).
3. All spaces shown in the commands are required.
4. All commands must be sent using uppercase letters only. Lowercase letters in the
command reference that follows are used as value placement indicators, the required
value or identifier text is given in the Details panel for each command.
Video Commands
Video Selections
The following command is used to make video selections:
Command
Details
SET INx VIDEO ALL
Select Input x to Output (mirrored outputs)
Where:
xis in the range 1 to 8 for inputs 1 to 8
The following command return the input associated with the output:
Examples:
Command
Response
SET IN5 VIDEO ALL
IN5 VIDEO ALL
Video Output Blanking
The following command enables or disables the video output:
Command
Details
SET OUT BLANK w
Set the Output blanking mode
Where:
w is either ON or OFF.
GET OUT BLANK
Return the Output blanking status
Examples:
Command
Response
GET OUT BLANK
OUT BLANK OFF
SET OUT BLANK ON
OUT BLANK ON
Video Output Freeze
The following commands sets the freeze or unfreeze status of the video output:
Command
Details
SET OUT FREEZE w
Set the Output Freeze mode
Where:
w is either ON or OFF.

V1.0 9 sy.uk
Examples:
Command
Response
GET OUT FREEZE
OUT FREEZE OFF
SET OUT FREEZE ON
OUT FREEZE ON
Video Output HDCP Configuration
The following command configures the HDCP mode for the video outputs.
Command
Details
SET OUT HDCP w
Set the output HDCP mode w
Where:
w is either AUTO or H14 or H22 or OFF
GET OUT HDCP
Return Output HDPC setting
Examples:
Command
Response
GET OUT HDCP
OUT HDCP AUTO
SET OUT HDCP H14
OUT HDCP 1.4
Video Output Signal Format
The following command configures the output video format for the specified output.
Command
Details
SET OUT OUT-SIGNAL w
Set Output to the desired resolution.
Where:
w is one of the following:
1024x768p60
1280x720p50
1280x720p60
1360x768p60
1600x1200p60
1920x1080p50
1920x1080p60
1920x1200p60
3840x2160p30
3840x2160p50
3840x2160p60
AUTO
GET OUT OUT-SIGNAL
Return the output video format.
Examples:
Command
Response
GET OUT OUT-SIGNAL 
OUT OUT-SIGNAL UHD-HDMI@3840x2160p60
SET OUT OUT-SIGNAL AUTO
OUT OUT-SIGNAL UHD-HDMI@AUTO

sy.uk 10 V1.0
Test Pattern Mode
The SMFS81-18G can output a colour bar test pattern using the current output resolution
settings. Please note that the output Test Pattern is set to the currently selected resolution and
refresh rate.
Command
Details
SET OUT TSP w
Set the test pattern state as the output signal.
Where:
w is either ON or OFF for the desired state.
GET OUT TSP
Get the test pattern state Where:
Examples:
Command
Response
GET OUT TSP
OUT TSP OFF
SET OUT TSP ON
OUT TSP ON
SET OUT TSP OFF
OUT TSP OFF 
Input Video Format
This GET command returns the detected video input format for the specified video input.
Command
Details
GET INx IN-SIGNAL
Return the video format for Input x
Where:
xis in the range 1 to 8 for inputs 1 to 8
Examples:
Command
Response
GET IN1 IN-SIGNAL
IN1 IN-SIGNAL UHD-HDMI@4K2Kp60
Audio Commands
Audio Routing
The following command is used to set the audio routing options:
Command
Details
SET INx AUDIOIN w
Select Input x to audio input mode w
Where:
x is in the range 1 to 8 for inputs 1 to 8
w is one of the following options:
EMDEBBED Not valid for VGA input (Only HDMI inputs)
L/R1
L/R2
L/R3
L/R4
L/R5
L/R6
L/R7
L/R8
GET INx AUDIOIN
Return the audio input mode for Input x