LIBERTY AV SOLUTIONS DIGITALINX DL-SC41U-TX User manual

Rev 200203 Phone: 719-260-0061
Toll-Free: 800-530-8998
Fax: 719-260-0075
DL-SC41U-TX Owners Manual
11675 Ridgeline Drive
Colorado Springs, CO
80921

DL-SC41U-TX Owners Manual
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Important Safety Instrucons
»Please completely read and verify you understand all instrucons in this manual before operang this equipment.
»Keep these instrucons in a safe, accessible place for future reference.
»Heed all warnings.
»Follow all instrucons.
»Do not use this apparatus near water.
»Clean only with a dry cloth.
»Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliers)
that produce heat.
»Use only accessories specied or recommended by Intelix.
»Explanaon of graphical symbols:
◊ Lightning bolt/ash symbol: the lightning bolt/ash and arrowhead within an equilateral triangle
symbol is intended to alert the user to the presence of uninsulated “dangerous voltage” within the
product enclosure which may be of sucient magnitude to constute a risk of shock to a person or
persons.
◊ Exclamaon point symbol: the exclamaon point within an equilateral triangle symbol is intended
to alert the user to the presence of important operang and maintenance (servicing) instrucons
in the literature accompanying the product.
»WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR
MOISTURE AND OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, SHOULD NOT BE PLACED ON THIS APPARATUS.
»Use the mains plug to disconnect the apparatus from the mains.
»THE MAINS PLUG OF THE POWER CORD MUST REMAIN READILY ACCESSIBLE.
»Do not defeat the safety purpose polarized or grounding-type plug. A polarized plug has two blades with one wider
than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong
is provided for your safety. If the provided plug does not t into your outlet, consult an electrician for replacement of
your obsolete outlet. Cauon! To reduce the risk of electrical shock, grounding of the center pin of this plug must be
maintained.
»Protect the power cord from being walked on or pinched parcularly at the plugs, convenience receptacles, and the
point where they exit from the apparatus.
»Do not block the air venlaon openings. Only mount the equipment per Intelix’s instrucons.
»Use only with the cart, stand, table, or rack specied by Intelix or sold with the equipment. When/if a
cart is used, use cauon when moving the cart/equipment combinaon to avoid injury from p-over.
»Unplug this apparatus during lightning storms or when unused for long periods of me.
»Cauon! Shock Hazard. Do not open the unit.
»Refer to qualied service personnel. Servicing is required when the apparatus has been damaged in any way, such as
power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally, or has been dropped.

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Table of Contents
Product Overview��������������������������������������������������������������������������������������������������������������������������������������� 4
Product Contents���������������������������������������������������������������������������������������������������������������������������������������� 4
Front and Rear Panels��������������������������������������������������������������������������������������������������������������������������������� 5
Front Panel���������������������������������������������������������������������������������������������������������������������������������������������������� 5
Rear Panel����������������������������������������������������������������������������������������������������������������������������������������������������� 6
Installaon Instrucons������������������������������������������������������������������������������������������������������������������������������ 7
Mount the Matrix ����������������������������������������������������������������������������������������������������������������������������������������� 7
Connect Sources�������������������������������������������������������������������������������������������������������������������������������������������� 7
Video Inputs ........................................................................................................................................... 7
Connect Displays������������������������������������������������������������������������������������������������������������������������������������������� 7
HDMI Outputs ........................................................................................................................................ 7
HDBaseT Output (Oponal) .................................................................................................................... 7
Connecng Control ��������������������������������������������������������������������������������������������������������������������������������������� 8
RS232 Port Wiring .................................................................................................................................. 8
Connect Ethernet (Web Browser) Control (Oponal) ������������������������������������������������������������������������������������ 9
Router Connecon ................................................................................................................................. 9
Crossover Cable Connecon ................................................................................................................... 9
Web Browser Control ............................................................................................................................. 9
Applying Power �������������������������������������������������������������������������������������������������������������������������������������������10
HDBaseT Cabling Requirements���������������������������������������������������������������������������������������������������������������� 10
A/V Diagram �������������������������������������������������������������������������������������������������������������������������������������������� 11
Standalone��������������������������������������������������������������������������������������������������������������������������������������������������11
With Oponal HDBaseT Receiver����������������������������������������������������������������������������������������������������������������12
Web GUI Control / System Sengs ����������������������������������������������������������������������������������������������������������� 13
Switcher Control������������������������������������������������������������������������������������������������������������������������������������������13
Connecng to Web GUI Control ...........................................................................................................13
A/V Switching .......................................................................................................................................14
RS232 Display Control Sengs .............................................................................................................15
Auto Display ON/OFF Sengs ..............................................................................................................16
USB Host Switching Sengs .................................................................................................................17
Edid Management ................................................................................................................................18
Relay Conguraon ..............................................................................................................................19
Renaming Inputs...................................................................................................................................20
Network Sengs ..................................................................................................................................21
Security Sengs ...................................................................................................................................22
System Sengs .....................................................................................................................................23
RS232 and TCP/IP Control ������������������������������������������������������������������������������������������������������������������������� 24
A/V Roung�������������������������������������������������������������������������������������������������������������������������������������������������24
USB Host Roung ����������������������������������������������������������������������������������������������������������������������������������������25
CEC / RS232 Display Control������������������������������������������������������������������������������������������������������������������������26
Relay Control�����������������������������������������������������������������������������������������������������������������������������������������������26
System Commands��������������������������������������������������������������������������������������������������������������������������������������27
Technical Specicaons ���������������������������������������������������������������������������������������������������������������������������� 28

DL-SC41U-TX Owners Manual
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The DigitaLinx DL-SC41U-TX is a 4x1 mul format A/V presentaon auto switcher that supports video
resoluons up to 4K@60Hz 4:4:4 8bit deep color, is HDCP 2.2 compliant and has a built in USB 3.0
switching hub for control and integraon of USB devices such as USB cameras and microphones. The
switcher features four video inputs; (2) HDMI, (1) Display Port and (1) USB-C. The USB-C input supports
video, data (USB host) and power charging up to 40w. There is a 2 port USB client hub built with 2
USB host ports that can be switched independently or can be assigned to follow a video input so
when the video input is triggered or switched, the dened USB host port will also switch. The switcher
features two matrix outputs; HDMI and HDBaseT 2.0. The built in HDBaseT 2.0 transmier output
supports long distance transport of audio, video and High Speed USB 2.0 signals up to 190Mbps up to
70 meters / 232’ using one category cable. The switcher is compable with the DL-SCU-RX HDBaseT
2.0 receiver (sold separately) and the receiver can supply power to the DL-SC41U-TX remotely when
used in this conguraon. NOTE: When using the DL-SCU-RX HDBaseT 2.0 receiver, it will not provide
power charging to the USB-C input unless the DL-SC41U-TX is also powered.
The DL-SC41U-TX gives you the ability to automate the display power ON by using pre-loaded RS232
commands whenever a video signal is introduced to the system using any A/V input. It will also turn
the display power OFF aer a specied amount of me has passed when no video signal or switching
acvity is present. For a complete list of programming commands to automate display power status,
please see the complete owners manual online at www.libav.com or by using the QR code on the print
page of this guide.
The DL-SC41U-TX can be controlled via front panel buons or by API commands using RS232 or
Ethernet. A web server / GUI is built in that features A/V and USB switching control, automac display
control and input EDID management.
The DL-SC41U-TX is ideal for soware based video teleconference rooms that require the consolidaon
and sync of A/V and USB signals from a laptop or room PC.
NOTE: The DL-SC41U-TX switcher can be used as a standalone switcher or paired with an HDBaseT
receiver. The DL-SCU-RX HDBaseT 2.0 receiver (sold separately) is required to complete an extension
circuit. When using the DL-SCU-RX, only USB 2.0 Full Speed devices can be used on the receiver.
Product Overview
Product Contents
• DL-SC41U-TX 4X1 HDMI / USB Switcher
• (1) Quick Install Guide
• (1) 3 pin Phoenix Male Connector
• (4) Plasc Cushions
• (2) Mounng clips with 4 screws
• DC24V Power Supply with US, UK, EU and AU adapter plugs

DL-SC41U-TX Installaon Guide
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Front and Rear Panels
Front Panel
123 4
1. POWER LED - Illuminated red when power is applied
2. INPUT - A/V source selector and input LEDs
• NOTE: The RX HDMI can only be used when paired with the DL-SCU-RX HDBaseT receiver
3. OUTPUT - Output selector and output LEDs
4. SWITCH - A/V switch selector
• To route an input to an output, select the INPUT, then the OUTPUT then press SWITCH. By
default the DL-SC41U-TX is set to auto switching mode.
5. DISPLAY - Display control buons, triggers CEC / RS232 commands
• ON: Turns display ON
• OFF: Turns display OFF
• VOL-: Turns display volume down
• VOL+: Turns display volume up
• RELAY 1: Turns relay 1 state ON/OFF
• RELAY 2: Turns relay 2 state ON/OFF
NOTE: The RELAY 1/2 buons can only be used when paired with the oponal DL-SCU-RX
HDBaseT receiver (not included)

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Rear Panel
1
43 5
6 7 8 9 10 11 12
2
1. PC1 / PC2 - USB B Host ports
NOTE: By default PC1 is set to follow HDMI 1 video input, PC2 is set to follow HDMI 2 video input.
This can be changed in the web GUI sengs. See owners manual for complete instrucons.
2. Device 1 / Device 2 - USB A Client ports
3. RS232 - Phoenix connector for RS232 system control
4. LAN - RJ45 connector for Ethernet system control
5. FIRMWARE - USB A port for rmware updates
6. 1. HDMI IN - HDMI input 1
7. 2. HDMI IN - HDMI input 2
8. 3. DP IN - Display Port input
9. 4. USB-C IN - USB C input, support A/V, data and power charging up to 40 was
NOTE: The DL-SC41U-TX USB-C input supports ALT-DP mode for video, to ensure a source is
compable with the DL-SC41U-TX check the sources capability of supporng this mode.
10. HDMI OUT - HDMI output
11. HDBT OUT - 70M / 232’ HDBaseT 2.0 transmier output
12. DC24V - Power supply input

DL-SC41U-TX Installaon Guide
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Installaon Instrucons
Mount the Matrix
At least 2 inches of free air space is required on both sides of the DL-SC41U-TX for proper side venlaon. Avoid
mounng the DL-SC41U-TX near a power amplier or any other source of signicant heat.
Connect Sources
Connect source devices to the HDMI, Display Port, or USB-C inputs. When using HDMI cables for source inputs,
use a High Speed HDMI cable that is less than or equal to 5 meters in length for 4k60 signals and 8 meters for
1080p signals.
When connecng a source device to the USB-C input using a USB-C cable, be sure the USB-C cable is capable of
supporng video and is no longer than 2 meters (6.6’) in total length. The DL-SC41U-TX USB-C input supports
ALT-DP mode for video, to ensure a laptop is compable with the DL-SC41U-TX check the laptops capability of
supporng this mode.
Note that not all laptops with USB-C port opons will support video or more specically ALT-DP video
mode�
Video Inputs
Connect Displays
HDMI Outputs
Connect display devices to the HDMI 1 and 2 output using a High Speed HDMI cable that is less than or
equal to 5 meters in length for 4k60 signals and 8 meters for 1080p signals.
Connect a solid core CAT6 F/UTP rated category cable to the DL-SC41U-TX HDBaseT output and the
oponal HDBaseT receiver (DL-SCU-RX). Use TIA/EIA-568B wiring for Category 6 connecon between
the DL-SC41U-TX and the receiver. See page 10 for HDBaseT Cabling Requirements.
Connect a display device to the HDMI output of the HDBaseT receiver using a High Speed HDMI cable
that is less than or equal to 5 meters in length for 4k60 signals and 8 meters for 1080p signals.
HDBaseT Output (Oponal)

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Connect a control system to the DL-SC41U-TX via RS232 for switcher control.
Connecng Control
RS232 Wiring
Connect the system controller RX signal
to TX on the DL-SC41U-TX, then connect the
controllers TX signal to RX on the
DL-SC41U-TX.
RS232 Sengs:
• 9600 baud
• 8 Data Bits
• 1 Stop Bit
• Parity = none
DL-SC41U-TX RS232 Port
Conncected RS232 Device pins
TX RX G
RX TX G
RS232 Port Wiring

DL-SC41U-TX Installaon Guide
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Connect Ethernet (Web Browser) Control (Oponal)
The DL-SC41U-TX can be controlled via Ethernet through a web browser interface.
The TCP/IP port requires a standard straight-through Category 5
or greater cable with the TIA/EIA-568B crimp paern for opmal
operaon.
The default sengs for the TCP/IP port are:
IP address: 192.168.0.178, Telnet Port 4001
TIA/EIA-568B
Orange/White
Orange
Green/White
Blue
Blue/White
Green
Brown/White
Brown
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
1 8
Connect the Ethernet cable between to the switcher and a
router with a straight-through cable or between the matrix and
a computer with a crossover cable.
Router Connecon
1. Congure the router to use the same IP range as the matrix, such as 192.168.0.1.
2. Connect the computer to the router.
3. Connect the DL-SC41U-TX to the router
Web Browser Control
The DL-SC41U-TX includes a web portal to allow control of the matrix via a standard web browser. The IP address
is the same address that is used for TCP/IP control.

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Connect the included power supply to the DL-SC41U-TX power port, connect the IEC power cord connected to
power supply to a power source.
Applying Power
Twisted Pair Wiring
Use TIA/EIA-568B wiring for Category 6
connecon between send and receive
units.
HDBaseT Cabling
To ensure proper performance of the DL-SC41U-TX, it is recommended that you use solid
core, shielded Category 6 F/UTP cabling at a minimum. Category 5e F/UTP may perform
well but may not support power over HDBaseT reliably over longer distances.
For opmized HDBaseT performance use the following Liberty Wire and Cable branded
cabling;
Category 6 plenum; 24-4P-P-L6SH
Category 6A plenum; 24-4P-P-L6ASH
Category 6 NON-plenum; 24-4P-L6SH
Category 6A NON -plenum; 24-4P-L6ASH
When using shielded category cabling ALWAYS...
....use shielded connectors
....properly ground the category cable
HDBaseT Cabling Requirements

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Standalone
A/V Diagram

DL-SC41U-TX Installaon Guide
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With Oponal HDBaseT Receiver

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Web GUI Control / System Sengs
Network a PC computer and the DL-SCU41-TX then open a web browser and type in IP address of the
DL-SCU41-TX. The default IP address is 192.168.0.178. Be sure the computer you are using to connect
to the DL-SCU41-TX is in the same IP range to access the web GUI / server.
The login screen will appear. The default user name and password is admin
Switcher Control
Connecng to Web GUI Control

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The CONTROL menu allows you to route A/V signals from the video inputs to the HDMI and HDBaseT outputs of
the switcher and enable / disable auto switching mode.
To enable / disable auto switching mode, check the ON/OFF buon in the Auto Switching menu. When auto
switching is disabled, the switcher must be switched manually by either using the front panel buons, the
embedded web GUI or with the API. By default the DL-SCU41-TX is set to auto switching mode and follows the
‘rst in last out’ method. To use 5V HDMI or A/V Signal Detecon for auto switching mode, check the desired
buon in the Auto Switching menu, the seng will take immediately. By default auto switching is set to 5V HDMI
for the auto switching trigger.
When auto switching mode is disabled, the video route for either HDMI and HDBT outputs can be routed
manually by checking the input buons that corresponds with the output in the web GUI. TX HDMI OUT refers
to the DL-SC41U-TX, RX HDMI OUT refers to the oponal DL-SCU-RX HDBaseT receiver.
When auto switching mode is enabled, the selected AV input will be routed to both outputs except for the HDMI
input on the oponal DL-SCU-RX HDBaseT receiver which can only be routed to the HDBaseT receiver HDMI
output.
A/V Switching

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The Display Seng > RS232 menu allows you to congure RS232 serial strings to be transmied to a connected
display to either the DL-SC41U-TX or the oponal HDBaseT receiver. An RS232 / serial connecon must be made
from either device to a display for this opon to work.
Refer to the projector or displays owners manual to obtain the RS232 / serial strings for control. You will want
to locate the ON, OFF, INPUT, VOLUME UP and VOLUME DOWN string, what the default baud rang is for the
serial connecon on the display, what pins should be terminated for TX,RX and how the commands must be
terminated i.e. carriage return, line feed etc. Be sure the TX, RX pins are appropriately connected from the
display to the switcher. See page 8 for making a serial connecon
RS232 Display Control Sengs
Enter baud rate of the display under BAUD RATE
Enter the string terminator under COMMAND ENDING
• NULL - None
• CR - Carriage Return
• LF - Line Feed
• CR + LF - Carriage Return + Line Feed
Enter the display ON string in the DISPLAY ON eld
Enter the desired me delay in seconds in the INPUT DELAY eld for the input command. The input command
will be transmied to the display aer the input command has been generated.
Enter the desired display input string in the DISPLAY INPUT SELECT eld
Enter the display OFF string in the DISPLAY OFF eld, check the X2 box if the command must be repeated 2 mes
then enter the display o delay in seconds in the DISPLAY OFF X2 DELAY eld.
Enter the volume up and down strings in the VOLUME + and VOLUME - elds. Note that the volume commands
will be used to turn up / down the volume of the line level output on the oponal HDBaseT receiver.
Click SAVE to save sengs
NOTE: The strings saved in this menu can be triggered manually with the DL-SC41U-TX front panel buons.

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The DISPLAY SETTING > ADDITIONAL menu allows you to enable / disable automac display ON/OFF control.
When display control is ON, the DL-SC41U-TX can turn the display or projector ON using the stored RS232
commands previously set up in the DISPLAY SETTING > RS232 menu or by CEC when an AV signal is introduced
to either of the switchers inputs. When an AV signal is not present aer a specied me, the DL-SC41U-TX can
generate the saved RS232 OFF command as well as CEC to turn OFF the display or projector.
Auto Display ON/OFF Sengs
By default the DISPLAY CONTROL opon is ON, press the ON toggle buon to disable DISPLAY CONTROL
Enter in the me in minutes in the NO SIGNAL TIMEOUT form, press the ON/OFF meout toggle to enable/
disable automac OFF control.
Press CONFIRM to save any sengs

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In the DL-SC41U-TX there are three USB hosts that can be switched either automacally, manually or they can
be set to follow the video input automacally when the AV input is selected. By default, PC 1 USB host follows
HDMI 1, PC 2 USB host follows HDMI 2 and when connecng USB C device it also switches to this input as a host.
To change the USB hosts to switch automacally based on USB signal detecon on either PC 1, PC 2 or USB C
check the AUTO SWITCH opon
To manually switch to the desired USB host check the MANUAL opon and then choose which host to switch to
PC1 or PC2.
To set a USB host to follow a selected video input, select FOLLOW VIDEO and use the drop down buons to
assign hosts to inputs. USB-C will always switch as the host when this input is selected
Press CONFIRM to save any sengs
USB Host Switching Sengs

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EDID can be set for each A/V input using the EDID menu.
To adjust an inputs EDID opon, click on the desired input channel then click on the desired resoluon, then
click CONFIRM.
When uploading a USER DEFINED EDID opon, click the open eld to locate the .bin EDID le on your local
computer, then click APPLY.
In the event EDID fails the DL-SC41U-TX will default to 1080p for all inputs.
Edid Management

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Latching or momentary relay modes can be set using the CONTROL > DISPLAY menu.
To adjust RELAY 1 or RELAY 2, navigate to the CONFIGURATION menu, them click on the RELAY opon. Choose
either MOMENTARY or LATCHING more for each relay. When choosing the MOMENTARY opon, dene how
long the relay will stay open/closed.
Relay Conguraon

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The Tags menu allows you to set user dened names for inputs and presets that will be displayed on the VIDEO
tab for easy system control
Navigate to the Tags menu, enter in the desired names for the INPUTS and PRESET secons, then click CONFIRM.
Renaming Inputs
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