SMART-AVI SM-MST Series User manual

SM-MST SERIES
MST DP KVM with MULTIPLE 4K HDMI Out
USER MANUAL
Designed and Manufactured in the USA
1-800-284-2131
www.smartavi.com
SM-MST-2D 2-Port KVM MST with Dual 4K HDMI Out
SM-MST-2Q 2-Port KVM MST with Quad 4K HDMI Out
SM-MST-4D 4-Port KVM MST with Dual 4K HDMI Out
SM-MST-4Q 4-Port KVM MST with Quad 4K HDMI Out

2/4 Port KVM MST with Dual or Quad 4K HDMI Out 2
OVERVIEW
TECHNICAL SPECIFICATIONS_________________________________________________________________
WHAT’S IN THE BOX?_________________________________________________________________________
FRONT AND BACK___________________________________________________________________________
INSTALLATION_______________________________________________________________________________
SYSTEM OPERATION_________________________________________________________________________
FRONT PANEL CONTROL_____________________________________________________________________
HOTKEY AND RS232 SERIAL CONTROL_______________________________________________________
CUSTOM HOTKEY TRIGGERS_________________________________________________________________
LED’S BEHAVIOUR___________________________________________________________________________
TROUBLESHOOTING_________________________________________________________________________
TECHNICAL SUPPORT________________________________________________________________________
LIMITED WARRANTY STATEMENT____________________________________________________________
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2/4 Port KVM MST with Dual or Quad 4K HDMI Out 3
Technical Specifications
VIDEO
Format DisplayPort1.2a
Input Interface
SM-MST-2S (2) DisplayPort1.2a
SM-MST-2D / SM-MST-4S (4) DisplayPort1.2a
SM-MST-2S (8) DisplayPort1.2a
Output Interface SM-MST-2S / SM-MST-4S (2) HDMI
SM-MST-2D / SM-MST-4D (4) HDMI
Resoluon Up to 4K (3840 x 2160 @ 30 Hz)
DDC 5 volts p-p (TTL)
Input Equalizaon Automac
Input Cable Length Up to 20 
Output Cable Length Up to 20 
AUDIO
Input Interface (2) 3.5 mm Stereo Audio
Output Interface (1) 3.5 mm Stereo Audio
Impedance 600 Ohm
Frequency Response 20 Hz to 20 kHz
Nominal Level 0-1.0 V
Common Mode Rejecon at 60 dB
USB
Input interface (TX) (2) USB type B
Output interface (RX) (2) USB 1.1 Type A for KM Devices
(2) USB 2.0 Type A Transparent
Emulaon USB 1.1 and USB 2.0 Compable
CONTROL
Front Panel Push Buons with LED Indicators
RS-232 DB9 Female - 115200 N,8,1, No ow control
Hot Keys Via Keyboard
OTHER
Power Adapter External 100-240 VAC/ 12VDC2A @ 24 W
Approvals UL, CE, ROHS Compliant
Operang Temperature +32 to +104°F (0 to +40°C)
Storage Temperature -4 to 140°F (-20 to +60°C)
Humidity Up to 80% (No Condensaon)

2/4 Port KVM MST with Dual or Quad 4K HDMI Out 4
FRONT AND BACK
SM-MST-2D Back
SM-MST-2D Back
SM-MST-2Q Back
SM-MST-2D Front
SM-MST-2Q Front
SM-MST-2Q Back
SM-MST-2D Front SM-MST-2Q Front
What’s in the box?
PART NO. Q-TY DESCRIPTION
SM-MST Unit 1 2/4 Port KVM MST with Dual or Quad 4K HDMI Out
CC35DB9 1 3.5mm to DB9 Cable (for SM-DVN-2S / SM-DVN-2D)
PS12V2A 1 12V DC, 2A (minimum) power adapter with center-pin posive polarity.
1 User Manual

2/4 Port KVM MST with Dual or Quad 4K HDMI Out 5
INSTALLATION
1. Ensure that power is turned o or disconnected from the unit and the computers.
2. Use a DisplayPort cable to connect the DisplayPort output port from each computer to the
corresponding DP IN ports of the unit.
3. Use a USB cable (Type-A to Type-B) to connect a USB port on each computer to the respecve
USB ports of the unit.
4. Oponally connect a stereo audio cable (3.5mm to 3.5mm) to connect the audio output of the
computers to the AUDIO IN ports of the unit.
5. Connect a monitor to the HDMI OUT console port of the unit using a HDMI cable.
6. Connect a USB keyboard and mouse in the two USB console ports.
7. Oponally connect stereo speakers to the AUDIO OUT port of the unit.
8. Oponally use included 3.5mm to DB9 Cable and connect with a standard RS-232 Cable (not
included) to connect to a PC for Serial Control (only for 2 port units)
9. Finally, power on the KVM by connecng a 12VDC power supply to the power connector, and then
turn on all the computers.
Note: You can connect up to 2 computers to the 2 port KVM and connect up to 4 computers
to the 4 port KVM.
DP IN
HDMI OUT
USB IN
USB K/M OUT
USB 2.0 OUT
AUDIO IN
AUDIO OUT
12VDC2.0A
USB
RS232
K/M
AUDIO AUDIO
USB
OUT IN-4
AUDIO
USB
AUDIO
USB
IN-2
AUDIO
USB
DP
DP
IN-1
DP
DP
HDMIOUT
HDMIOUT

2/4 Port KVM MST with Dual or Quad 4K HDMI Out 6
Installation (continued)
EDID LEARN
The KVM is designed to learn the connected monitor’s EDID upon power up. In the event of
connecng a new monitor to the KVM, a power recycle is required.
The KVM will indicate to the user the EDID learn process by ashing the front panel’s LEDs. Port one
green and push buon blue LEDs will both begin to ash for about 10 seconds. When the LEDs stop
ashing, the EDID learn process is done.
If the KVM has more than one video board (such as dual-head and quad-head models), then the unit
will connue to learn the EDIDs of the connected monitors and indicate the progress of the process
by ashing the next port selecon green and push buon blue LEDs respecvely.
The monitor must be connected to the video output connector located in the console space at the
back of the KVM during the EDID learn process.
If the read EDID from the connected monitor is idencal to the current stored EDID in the KVM then
the EDID learn funcon will be skipped.

2/4 Port KVM MST with Dual or Quad 4K HDMI Out 7
System operation
hotkey and rs232 serial control
There are three ways to control the SM-MST: Keyboard Hotkeys, RS-232 Serial Commands, and Front
Panel Buons. All modes of control will allow the user the set their desired conguraons.
The SM-MST may also be controlled via RS-232 commands. To use these commands, you must use
HyperTerminal or an alternate terminal applicaon. The sengs for the connecon are as follows:
Baudrate 115200; Data Bits 8; Parity None; Stop Bits 1; Flow Control None.
Once you have connected to the SM-MST via Serial, you will see the SM-MST informaon when the
device starts up.
The following commands can be used for RS-232 with available keyboard hotkeys:
COMMAND DESCRIPTION HOTKEY RS-232 COMMAND
Switch all USB devices and Main video [CTRL][CTRL] m[port #] [ENTER] //m[port #] [ENTER]
Switch Audio Only [CTRL][CTRL] a[port #] [ENTER] //a[port #] [ENTER]
Switch KM Only [CTRL][CTRL] c[port #] [ENTER] //c[port #] [ENTER]
Switch USB Only [CTRL][CTRL] u[port #] [ENTER] //u[port #] [ENTER]
Hotplug [CTRL][CTRL] h[ENTER] //h[ENTER]
Restore Factory Defaults [CTRL][CTRL] f[ENTER] //f[ENTER]
Reset Soware [CTRL][CTRL] r[ENTER] //r[ENTER]
Status Query N/A //?? [ENTER]
front panel control
To switch to an input port, simply push the buon on the front-panel of the KVM. If an input port is
selected, the LED of that port will turn on.
Hold down the buon of Front Panel for 3 seconds to force learn EDID.

2/4 Port KVM MST with Dual or Quad 4K HDMI Out 8
Custom hotkey triggers
Users are able to customize the keys that trigger Hotkeys. The default trigger for hot key funcon on
the keyboard is Ctrl + Ctrl. The trigger funcon can be used to change to the following keys:
Ctrl (Le / Right), Alt, Shi (Le / Right), Caps Lock,Scroll Lock, F1-F12
TO VIEW HOTKEY TRIGGER SETTING
Use the RS-232 command: / +/ +? +? +Enter to view the current HotKey Trigger To reset the Hotkey
Trigger use the “Factory Defaults” command.
TO CHANGE THE HOTKEY TRIGGER SETTING
HotKey + HotKey + x+ [desired hotkey]
Example: If users current Hotkey trigger is Shi and want to change to Scroll Lock, user would type
Shi + Shi + x+ Scroll Lock

2/4 Port KVM MST with Dual or Quad 4K HDMI Out 9
Led’s behavior
User Console Interface – Display LED:
Front Panel – Port Selecon LED’s:
EDID Learn - Front Panel LED’s:
All LED’s are turned on for 1 second. Then:
• Port 1 LED’s will ash unl the end of the process.
• Port 2 LED’s will ash unl the end of the process if a second video board exists (Dual-head KVM)
IMPORTANT!
If all Front Panel LED’s are on and
not ashing, the POWER UP SELF
TEST has failed and all funcons are
disabled. Check if any of the front
panel port selecon buons are
jammed. In this case, release the
jammed buon and recycle the power.
If power up self test is sll failing,
please contact SmartAVI technical
support at [email protected].
# STATUS DESCRIPTION
1O Monitor is not connected
2On Monitor is connected
3 Flashing EDID problem – Learn EDID to x the problem
# STATUS DESCRIPTION
1O Non-selected port
2On Selected port
3 Flashing EDID learn in process

2/4 Port KVM MST with Dual or Quad 4K HDMI Out 10
Troubleshooting
Technical support
No Power
• Make sure that the power adapter is securely connected to the power connector of the unit.
• Check the output voltage of the power supply and make sure that the voltage value is around
12VDC.
• Replace the power supply.
No Video
• Check if all the video cables are connected properly.
• Connect the computer directly to the monitor to verify that your monitor and computer are
funconing properly.
• Restart the computers.
Keyboard is not working
• Check if the keyboard is properly connected to the unit.
• Check if the USB cables connecng the unit and the computers are properly connected.
• Try connecng the USB on the computer to a dierent port.
• Make sure that the keyboard works when directly connected to the computer.
• Replace the keyboard.
Mouse is not working
• Check if the mouse is properly connected to the unit.
• Try connecng the USB on the computer to a dierent port.
• Make sure that the mouse works when directly connected to the computer.
• Replace the mouse.
No Audio
• Check if all the audio cables are connected properly.
• Connect the speakers directly to the computer to verify that the speakers and the computer
audio are funconing properly.
• Check the audio sengs of the computer and verify that the audio output is through the
speakers.
For product inquiries, warranty quesons, or technical quesons, please contact [e-mail].