Hall Research Technologies UHBX-SW3-S User manual

Quick Start Guide
VGA / HDMI / MHL Auto-Switching
Sender
With Output
UHBX-SW3-S
QSG1239 Rev 1.0

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The Model UHBX-SW3-S is a video extender with 3 video inputs in a
compact surface mountable form factor. The video inputs are:
•Input 1 – HDMI or MHL (Mobile High-Definition Link )
•Input 2 – HDMI
•Input 3 – VGA or YPbPr with separate audio
The device can manually or automatically switch between the various
video inputs, and send user defined RS232 commands to control the
On/Off state of the display. The extender also features an IR sensor and can
extend IR control signals to the Receiver. For a few IR protocols, if the
format, data, and address bytes of the IR signal are known, the extender
may also be capable of generating the IR signals.
Using just a single twisted pair (Cat6) cable, the extender connects to a
compatible receiver, such as the model UHBX-R-PSE.
The single Cat6 cable carries all AV and control signals (RS232 or IR) from
the extender to the receiver. The same Cat6 cable also delivers power to
the extender using Power-over-HDBaseT (PoH) standard as defined by
HDBaseT®Alliance. There is no power input connection on the extender,
so a PoH compliant receiver that acts as PSE (Power Sourcing Equipment)
is required.

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First ensure that the Receiver power is off by unplugging the power supply
from the Receiver. Then connect a Cat6 from the RJ45 HDBaseT Output of
the extender to the Receiver. There are two RJ45's on the extender, so
make sure to use the one labeled as HDBaseT Output.
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The Extender can be directly plugged in to displays or projectors with
HDBaseT®inputs. In this configuration the extender still sends RS232
control commands to the display (check your display’s specifications for
details). To power up the extender, a power inserter would be required as
shown below (Hall Research PoH inserter p/n 511-POH-17W).

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The extender can be used to control the display on/off function (Power
Command). The extender can store and send RS232 control commands to
displays or projectors with RS232 control capability. The extender can
extend IR signals, by pointing IR remote to the extender and connecting an
IR emitter to the Receiver, however the extender also has limited
capability to generate user defined IR commands and some popular IR
protocols are supported. Since there are thousands of IR commands and
dozens of protocols, it may be difficult for the user to obtain all the
information necessary for IR control. Using programmed IR commands is
further complicated because to keep the power state of the extender
synchronized with the TV, unique IR commands for ON and OFF are
needed. Many TVs only have one IR command that toggles the state
between on and off, making programmed IR control unsuitable.
To configure the extender and enter RS232 power commands for your
display, use the mini-USB connector (on the bottom side) together with the
included USB cable to connect the unit to a Windows®PC. A free
Windows®GUI software is available on the product's webpage. It is the
user’s responsibly to determine, for their specific display, the control
method and to obtain the commands from the display manufacturer. As
mentioned earlier for best results use a display or a projector with an
RS232 control port if you desire the extender to control its power.
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Di im me en ns si io on ns s

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As shipped from the factory the extender is in full manual mode. This
means that you have to manually turn on the extender and also manually
select the input source you want displayed.
If you have defined a display Power On command, then the extender will
issue that command at the same time it turns on. So all you have to do is
press the power button on the extender once.
1. Press the power button
2.
The red LED above the power button will turn on and also one of the
3 green LEDs next to the inputs will turn on to indicate which source
is selected
3.
To change input, press the SOURCE button. For each press the green
LED next to each input connector will successively illuminate.
To turn off the extender, press the power button. If you have defined a
display Power Off command, the extender will issue the command as it
turns off.

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The extender has the ability to detect video connections on its inputs and
automatically switch to the connected input.
Change the mode to "Auto Source" either from the button on the extender
or using PC software thru the USB port. From the GUI software you can
also lock the Auto Source mode (so it will stay in that mode permanently).
To enable Auto Source mode first make sure the extender is on. Press and
hold the Source button for 3 seconds. The red LED above the Source button
will turn on (and blink slowly). This indicates that the extender will
automatically select inputs. In this mode, pressing the Source button will
not change inputs.
If the extender is turned off and back on, it will recall this mode.
If the Auto Source mode is not locked by the GUI, you can exit this mode
from the extender by holding the Source button for 3 seconds. The red LED
above the Source button will turn off.
Notice The user can prioritize inputs, in case more than one is active.
As shipped from factory, HDMI 1 has the highest priority, then HDMI 2,
and last the VGA input.
Priorities can be changed through the USB port using the free manager
software GUI (Graphical User Interface).
If you do not want inputs to usurp each other, you can assign the same
priority level to them in the GUI.
Component Video cannot be auto-detected. So if you are connecting
YPbPr Component to the VGA input, you must select it manually.

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The extender can send power on/off commands to the display
automatically based on sensing video on its selected input.
In Auto Power Command mode when the extender detects video on the
selected input it will issue an ON command to the screen, and if there is no
video being detected, an OFF command will be issued after a user specified
delay (default delay = 5 minutes).
You can enter the Auto Power Command mode either from the extender or
by using the GUI (via USB interface). The GUI also allows you to also lock
the Auto Power Command mode (so it will stay in that mode permanently).
To enable Auto Power Command mode from the panel, first make sure the
extender is on. Press and hold the power button for 3 seconds. The red
LED above the power button will start blinking slowly. This indicates that
the extender will automatically send on and off commands to the display.
In this mode, pressing the power button will not do anything.
If not locked from the GUI, you can exit Auto Power Command mode by
pressing and holding the Power button for 3 seconds. The red LED above
the Source button will stop blinking. Now you can manually turn the panel
on and off (and at the same time issue commands to the display).
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IR R E Ex xt te en ns si io on n
The extender features an IR detector that can be used to extend IR to the
remote receiver. An IR blaster cable will be required to plug to the receiver
(Hall Research model CIR-EMT or CIR-EMT2). In this way the user can
point the IR remote to the extender and control the display. It is important
that the IR light signal blasted from the IR emitter at the receiver is not
incident on the extender's IR detector, since that will create a positive
feedback condition and can interfere with proper function.

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VG GA A S Sc ca al le er r
The UHBX-SW3-S scales the VGA input to 720p or 1080p in order to
eliminate compatibility issues with the myriad of VGA resolutions that may
not be supported on most TV’s HDMI input. Scaling the VGA to 1080p
(default) which is a standard HDTV resolution assures that there will be a
perfect display regardless of the VGA signal source timing. The scaler is
designed to work out of the box with no adjustments. However for
advanced users, the GUI provides many advanced features such as
underscan (zoom out), aspect ratio, brightness, etc.
Since VGA is an analog signal the scaler detects the edges of the video and
fits it to the display. Similar to VGA monitors, the extender has an “Auto
Adjust” feature. In the unlikely event that the VGA image on the display is
grossly misaligned, press both power and source buttons on the panel
simultaneously. This will start the “Auto Adjust” procedure after resetting
the extender (takes about 15 seconds to complete).
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Using HD15 to 3 RCA cable, the VGA input can
accommodate component video (YPbPr). But you have to
configure the extender to expect YPbPr using the configuration GUI. In this
mode, the Auto Source selection mode is not available.
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The user can configure the unit to pass-through the 3.5mm audio input
(associated with the VGA) on its HDMI output signal without having to
connect a live VGA signal. In this way audio from MP3 audio players can
also be extended to the TV (screen will be dark). To enable pass-thru of
3.5mm audio without VGA signal, refer to the configuration Software
documentation.

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1
HDMI 1 input & selection indicator
Supports MHL signal
6
Auto Input Selection Indicator
When lit (with a slow blink), the
extender scans for active input
2
HDMI 2 input & selection indicator
7
Power button. Will turn panel on
and off and issue corresponding
commands to display. Hold for 3
seconds to enter or exit Auto
Power Command mode
3
VGA input & selection indicator
Can be configured for YPbPr
8
Power Indicator
When lit solid the panel is on.
When blinking slowly it indicates
Auto “Power Command” mode
4
Stereo audio input for VGA.
Can be configured to pass audio
without VGA connected.
9
IR Extension Detector
Any incident IR signal is extended
to the receiver’s IR output
5
Manual Source Selection button
Hold for 3 seconds to enter or exit
Auto Source mode

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HDBaseT Output.
The extender requires PoH (power over HDBaseT), so the
receiver has to be a PSE (power sourcing equipment) type, or a
power inserter is needed.
2
Mini-USB port for connection to a PC. A free GUI is available that
can be used to configure the extender. A USB to mini-USB cable is
provided
3
For connection to SW3-UI and SW3-UI-VOL optional auxiliary
control panel (sold separately)
Do not plug HDBaseT cable from Receiver to this port
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The extender is ready to use out of the box and in many cases no special
configuration is needed.
If the user desires to control the On/Off function of the display or to tweak
some of the parameters (such as prioritizing the input selection in Auto
input mode), a onetime set up is needed.