Hall Research Technologies UHBX-8X User manual

User’s Manual
UHBX-8X
8-Port HDMI Extender on HDBaseT™
with
IR, RS-232, and IP Control
Send 8 HDMI inputs to 8 remote displays up to 500 ft away
Send PoH to power compatible receivers
Extend IR in both directions
Send RS-232 and IR commands to any remote Display
Control unit via RS-232 and IP ports
UMA1213 Rev B
© Copyright 2018. Hall Research, Inc. All rights reserved.
1163 Warner Ave Tustin, CA 92780, Ph: [phone], Fax [phone]

8-Port HDMI Extender with Power, IR, and RS-232
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Table of Contents
1.0 Introduction 3
2.0 Features 3
3.0 Setup 4
3.1 Package Contents 4
3.2 Extender Connections 4
4.0 Operation 11
4.1 Front Panel HDBaseT Status Indicators 11
5.0 Control Commands (RS232 and IP) 12
6.0 Troubleshooting 16
7.0 Specifications 18
TRADEMARKS USED IN THIS MANUAL
Hall Research and its logo are trademarks of Hall Research. Any other trademarks
mentioned in this manual are acknowledged as the property of the trademark owners.
FCC RADIO FREQUENCY INTERFERENCE STATEMENT
This equipment generates, uses, and can radiate radio frequency energy and if not installed and
used properly, that is, in strict accordance with the manufacturer’s instructions, may cause
interference to radio communication. It has been designed to comply with the limits for a Class A
computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules,
which are intended to provide reasonable protection against such interference when the equipment
is operated in a commercial environment. Operation of this equipment in a residential area is
likely to cause interference, in which case the user at their own expense will be required to take
whatever measures may be necessary to correct the interference.
Changes or modifications not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.

UHBX-8X
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1.0 Introduction
The UHBX-8X is an 8-Port HDMI extender that converts 8 inputs to
corresponding HDBaseT™ outputs for extension to 150 meters/500 ft on
single UTP. The extender supports HDCP, Deep Color, CEC, and 4K (UHD)
resolutions. Compatible receivers include the economical UH-1BT-R or UH-
1BTX-R for HDMI extension to 230 ft or 330 ft respectively, or the UHBX-
R-PD which supports RS-232, IR, PoH and Long Reach modes to 500 ft.
When using receivers with PoH function, a single optional 48v power supply
is needed for the 8-channel sender (Model # 511-PS4815).
The UHBX-8X provides both IP (Ethernet), and RS-232 ports for control. The
user can address and send RS-232 or IR commands to any of the receivers to
control the remote display. IR signals can also be extended in both directions.
The UHBX-8X can generate IR commands to send to remote TVs but it also
provides an IR detector input. The IR received by the detector can be routed to
any particular or combination of outputs. 8 separate IR emitter ports are
provided on the rear of the UHBX-8X The source of these signals would be
IR detectors at each remote location. This would be perfect for controlling
multiple sources in a rack remotely from where the TV’s are located
The extender is constructed as a 1RU rack-mountable unit and has built-in
power supply. LED indicators on the front panel show Link status, Video
status, Long Reach, and PoH Power for each of the 8 outputs. The UHBX-8X
is designed and manufactured in the USA.
2.0 Features
•Converts 8 separate HDMI inputs to corresponding HDBaseT™
outputs
•Extends IR in both directions
•Can issue RS-232 or IR commands to any output (requires
compatible receiver)
•RS-232 and IP control ports
•Supports HDCP, 3D, Deep Color, CEC, and 4 K (UHD) resolutions
•Sturdy 1RU design with built in power supply
•HDBaseT™ Compliant
•Can power compatible receivers through the cable using PoH
(requires optional 48v supply)
•Front panel status indicators for power, link, video and more for each
channel
•Designed and manufactured in the USA

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3.0 Setup
3.1 Package Contents
The UHBX-8X is shipped with a power cord and an RS232 cable.
3.2 Extender Connections
Figure 1 - Extender Connections
As you may have noticed in the above picture the HDMI inputs are on the
right side and the outputs are on the left. The reason for this arrangement is to
allow easy construction of a 8x8 HDMI matrix that has HDBaseT outputs.
Hall Research manufactures 8x8 HDMI matrices with the outputs on the right
side. So if you stack the UHBX-8X with the above matrix, using short 5 inch
patch cables you can add cross-point capability to the extender as shown
below:
Figure 2 – Connecting 8x8 Matrix Switcher to the UHBX-8X
3.2.1 Extender Video Input Connections
Figure 3 – HDMI Inputs
Connect any one of the HDMI inputs to the source using quality HDMI
cables. Hall Research offers compatible locking high-quality HDMI input
cables with a convenient flip tab that can secure the input cables to the
extender.

UHBX-8X
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Figure 4 – Hall Research C-HDMI-L high bandwidth
HDMI cable with flip-up locking tab
3.2.2 Extender Serial Data Connection
Figure 5 – RS232 Port
If required, plug a DB9 RS232 cable from any serial control device to the
connector on the box. The RS232 port provides a bi-directional serial
communication with any compatible receiver. This RS232 port operates at a
fixed 19200 baud, 8-bit, no parity, and 1-stop bit. However, it can
communicate with any compatible receiver at any user defined baud rate.
Typically a straight-through male-to-female cable is used to connect to the
extender. Pinout of the RS232 connector on the sender is shown below
DB9-F Pin Term Direction
2 TX Output
3 RX Input
5 GND
Figure 6 – RS-232 path from UHBX-8X to remote receivers
3.2.3 Extender IP Connection
Figure 5 – IP Port
The RJ45 connector is a 10/100 Base-T Ethernet port. This IP port can be
accessed via Telnet. As shipped, the IP address is configured for DHCP

8-Port HDMI Extender with Power, IR, and RS-232
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(assigned by your network’s router) and Port 6324 is used for Telnet
communications. Telnet commands are the same as RS232 commands.

UHBX-8X
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3.2.4 USB Connection
Figure 7 – USB Port
The USB port on the extender can be used to update the device firmware via a
Windows GUI and to set the power saving mode if no RS-232 or IR are used.
Please download the GUI software user guide for further information.
3.2.5 IR Connections
The extender can extend Infra-red Remote Control signals in both directions.
It has one IR input connector for an optional IR detector cable, and 8 IR
output connectors for optional IR emitter cables.
To provide maximum compatibility, IR signals are passed with their
modulation frequency intact.
IR Signal from the UHBX-8X to compatible receivers
Figure 8 – IR Input
The UHBX-8X can generate IR signals by itself based on Telnet or RS232
commands. The generated IR signal can also be directed to any one or
combination of outputs using simple ASCII control commands (see section 4
for further details).
Additionally, if an IR detector cable is plugged in to the IR input of the
UHBX-8X, then this signal is also extended to the addressed receivers. In this
way the user can use a TV’s remote and point it at the IR detector that is
plugged in to the UHBX-8X and be able to control the remotely located TV.
Figure 9 – IR path from UHBX-8X extender to remote locations

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To generate IR commands using RS232 or IP commands, the user must know
the protocol (NEC, Sony, RC5, etc), IR address, and IR command bytes. If
these are not known the UHBX does provide the means to send “learned” IR
codes, but to learn the codes a Hall Research model HR-4P may be needed.
The IR send command for “learned” codes are typically a series of 64 Hex
bytes that precisely define the IR signal to be generated.
IR Signal from a compatible receiver to the UHBX-8X
Figure 10 – IR Outputs
If there are IR detector cables plugged in at the remote receivers, those signals
are extended to the UHBX-8X and are available at the IR Output connectors.
Figure 11 – IR path from Display location to Source location
IR Detector Cable
The UHBX-8X uses “pass-thru” IR detector cable that maintains the IR
modulation. Compatible cables are available from Hall Research (Model
Number CIR-DET-P2). Pin out: Tip=Data, Ring=+5V DC, Sleeve=GND
Figure 12 –
IR Detector Cable CIR-DET-P2
(Detector head has adhesive backing)

UHBX-8X
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IR Emitter (Blaster) Cables
Currently two IR emitter cables are available: CIR-EMT and CIR-EMT2.
CIR-EMT, shown below, is recommended for most applications
Figure 13 –
IR Emitter Cable CIR-EMT
(Emitter has adhesive backing)
Pin out: Tip=Anode, Ring=Cathode, Sleeve=Not
Connected
An alternative Emitter cable is CIR-EMT2. This cable is better suited for
situations where there is a need to isolate and confine the IR signal to just one
device. A separately sold adhesive rubber cover can be used to confine the IR
beam to just one target device. The CIR-EMT2 is placed in a cavity in the
cover and stuck on the target device directly over its IR sensor. A typical
application scenario is when several identical video sources are located in
close proximity to each other and they need to be independently controlled.
The CIR-EMT2 has a mono-type plug. Pin out: Tip=Anode, Sleeve=Cathode
Figure 14 –
Alternate IR Emitter Cable CIR-EMT2
Figure 15 –
Emitter Cover: CIR-EMT2-CVR
(shown with CIR-EMT2)
3.2.6 UTP (Twisted Pair Catx) Connection
Figure 16 – HDBaseT outputs (RJ45 Connectors)
The extender is designed to be used with CAT6 UTP (unshielded) or STP
(shielded) cabling. However, CAT5e cables may be used but the maximum
cable length will be reduced by approximately 20% depending on the quality
of the cable.
Augmented CAT6 cables can also be used, and are recommended for
extension distances exceeding 140 meters (or >450 feet) with receivers that
support Long Reach mode.

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T568A termination standard is recommended for the UTP cable, However
T568B will also work (as long as both ends are terminated the same way).
To avoid interference with video, in EMI noisy environments (such as close
proximity to power transformers or AC wiring) shielded twisted pair (STP)
cable would be recommended. If STP is used it is important to ensure that the
RJ45 connector on both ends of the cable have the required metal shroud and
that the cable shield/drain wire is electrically connected to the metal shroud
and carried through from the sender to the receiver.
When Class-A HDBaseT receivers are used (such as Hall Research UH-
1BTX-R or UHBX-R-PD), then the signal in the UTP can be strengthened by
enabling Long Reach mode of operation. In this mode not only you can extend
the signal beyond 100 meter limit, but also the signal is more immune to noise
and interference even if the length of the cable is less than 100 meters. The
UHBX-R-PD receiver has a small switch on the box that sets its mode to
either Standard, or Long Reach, so the switch should be used to set the desired
mode. The UH-1BTX-R, does not have a mode switch, however the mode can
be set on the UHBX-8X using the Windows GUI. If you are using UH-1BTX
and would like to set the link mode to Long Reach, you can do that using the
Windows GUI through the USB connection. This is a onetime setting and the
UHBX-8X will remember the mode set for each output. Please refer to the
Windows GUI User’s Guide (available on-line) for more information.
3.2.7 Powering Receivers Using PoH (Power-over-HDBaseT)
The extender has a built-in universal power supply with a standard IEC320
C14 plug. If compatible receivers with PoH function (Such as Hall Research
UHBX-R-PD) are used with the extender, an external 48v power supply must
be plugged in to provide power to all receivers connected to the UHBX-8X.
Figure 17 - Optional 48v Power Supplies
Model 511-PS-4812 (4 pin used on early models)
Model 511-PS4815 (3 pin used on latest models)
NOTE ABOUT POWER SUPPLIES
CHECK carefully to see which power supply you need for your system
The latest models use a 3 pin power supply (Model 511-PS4815)
Earlier models use a 4 pin power supply (Model 511-PS4812)

UHBX-8X
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The Front panel of the UHBX-8X provides LED indicators for both the AC
and the optional 48 vDC power inputs.
Figure 18 –
Front panel power indicators
4.0 Operation
Once all the input and output connections are made as described in the
previous section, connect AC power to the UHBX-8S. There is no separate
on/off switch, so application of AC power will turn the unit on. Verify power
supply operation on the front panel indicators. If a UHBX-R-PD is used as the
receiver (needs PoH), make sure the optional 48V power supply is connected
to the sender and the 48V DC light is lit on the front panel.
In compliance with HDBaseT Alliance recommendations, the UHBX-8X
performs IEEE802.3af low-voltage handshake prior to inserting 48v onto the
Cat6 cables. This process can take up to 3 seconds. Once PoH is successfully
sent to each receiver the PoH LED on the front panel (and on the Receiver)
will be lit. When the Link LED on Sender and Receiver are lit (or blinking)
the system is ready to extend video and if you have source video connected, it
should be visible on the remote displays.
If you are using UH-1BTX receivers and want to extend beyond the 100meter
range, or if you are having video blanking issues (due to inferior UTP cable or
electrical interference), you can set the HDBaseT mode of any of the 8 outputs
to Long Reach using the Windows GUI software.
Also since HDBaseT has limitations regarding sending RS-232 and IR signals
in low power mode, when connected to receivers that have IR or RS-232 (such
as UHBX-R-PD), the UHBX-8X keeps the HDBaseT link fully active at all
times even if there is no video. If you are using UHBX-R-PD as receiver, but
are not using the RS-232 nor the IR functions, it is recommended that you turn
on “power management” using the GUI. This will cause both the sender and
the receiver to go into low power mode if no display is detected or if there is
no video input. The HDBaseT chipsets consume only a fraction of power
when they are in low power mode.
4.1 Front Panel HDBaseT Status Indicators

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Figure 19 –HDBaseT status indicators on the front panel
Link Solid on means the UHBX-8X Sender & remote Receiver are communicating
Blinking means they are communicating in Low-Power (sleep) mode
Video Solid on means Video is being sent to the display
L.R. Solid on means the link is operating in Long Reach mode
PoH Solid on means PoH handshake successful and power is sent to receiver
If all the LED’s on the front panel are blinking together, then the unit has
detected an over temperature condition and is performing a partial shutdown
to prevent damage to the integrated circuits. This condition is reversible and
when the temperature decreases to acceptable levels the extender begins to
function normally again. If over temperature condition occurs frequently, then
the user must allow better cooling and air flow around the box. The enclosure
has a temperature controlled fan on the left side that draws in fresh air and
exhausts the right side; make sure the sides of the unit are not blocking the
flow of air.
If for a particular channel the Link, Video, and L.R. LEDs are blinking
together, there has been a failure on the corresponding transmitter module or it
is missing. Contact Support.
5.0 Control Commands (RS232 and IP)
The extender can be controlled using simple ASCII commands either through
the RS232 or the Ethernet (IP) ports using Telnet protocol.
Use a DB9 Male-to-Female cable shipped with the extender to connect it to
the computer or external control device. If using a PC open a serial terminal
program (HyperTerminal, Realterm, TeraTerm, Putty, etc) with the following
settings:
19200 Baud, 8 bits, No Parity, 1 Stop-bit, and No flow control.
All serial commands received will be followed by a response. Baud Rate and
Parity setting commands (XBn and XPn) are global and affect all the outputs.
Command: XC,n <cr> Stands for Serial Connect
Connect serial interface (UART) to an output (n). If n is not specified, then it
reports which output the controller is connected to.n is in the range of 1 to 8
Response: XC,n <cr>
This indicates that the command completed successfully

UHBX-8X
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Command: XT <cr> Stands for Serial Transmit
This command should be followed by a string of characters (or bytes) to be
sent. All byte received after this command end up in a FIFO and will be sent
out after receiving a special two byte end of data designator (referred to as
terminal characters). Therefore, the UHBX-8X does not distinguish between
ASCII or Hex data, all data are treated as bytes. The user has 1-5 seconds to
enter any data or characters, or a timeout will occur. The maximum number
of bytes being sent out can not exceed 160 characters.
The terminal characters indicating the end of string are 0x17 followed by
0x0D. If everything is in ASCII and you are entering the string from a PC
keyboard you can send 0x17 0x0D, by pressing Ctrl+w (will send 0x17)
followed by Enter (will send 0x0D). If more than 160 bytes need to be sent,
then multiple commands will be needed.
Response: OK <cr>
It is recommended that the customer wait for the OK response prior to
issuing further commands. Neglecting to do so runs the risk of corrupting the
internal buffers.
Example of XT Command
From a PC Keyboard
Type: XT [enter]
Type: Hello World [Ctrl+w] [enter]
This will send out “Hello World”
Command: XB,n <cr> Stands for Serial Baud
If n is not specified, it reports the current baud rate (n = 1-8 per table below)
Response: XBn <cr>
Command: XP,n <cr> Stands for Serial Parity
If n is not specified, it reports the current parity. n: (0 = None, 1=Odd,
2=Even)
Response: XP,n <cr>
N 1 2 3 4 5 6 7 8
Baud
Rate 1200 2400 4800 9600 19200 38400 57600 115200

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Command: IC,n1,n2,n3, …<cr> Stands for IR Connect
Unlike Serial Connect command where the connection is made to one
particular output at a time, the IR Connect command can simultaneously
connect to multiple outputs. n1, n2, etc are output ports that the IR transmit
signals (from extender to the remote receivers) will be routed to. If n=0 then
all outputs are disconnected. The IR send connection pattern is stored in
memory. As shipped from factory IR signals are connected to all 8 outputs.
Response: IC, n1,n2,n3, … <cr>
Examples of IC command:
Command Response
IC,2,4,6<cr> IC,2,4,6<cr> Route IR to outputs 2,4, and 6
IC<cr> IC,2,4,6<cr> IC command with no parameters
reports current IR connections
IC,*<cr> IC,1<cr>
IC,2<cr>
:
:
IC,8<cr>
Connect to ALL ouputs (* = wildcard)
IC,0<cr> IC,0<cr> All outputs are disconnected
Command: ISk,m,n <cr> Stands for IR Send
k = IR protocol to be used
K 0 1 2 3 4 5
Protocol NEC JVC RCA RC5 Sony Extended NEC
m = IR address in decimal (range 0~255, or 0~65535 for Extended NEC)
n = IR command in decimal
Response: ISk,m,n <cr>
Command: IS9<cr> Stands for IR Send Detailed Timing (HR Protocol)
If the protocol of the particular IR Remote you intend to emulate is unknown
it is possible to instruct the UHBX-8X to send IR commands based on detailed
timing information as specified by HR protocol. The UHBX-8X currently
cannot learn the detailed timing, so a model HR-4P with a detector cable
(demodulated type 2) will be required for learning these codes. The learned
codes can be cut from the HR-4P GUI, and used as data for the IS9 command.
The IS9<cr> command is followed by a string of hex bytes to be sent out. The
user has up to 5 seconds to enter each hex byte from 0x00 to 0xFF.
When all Hex bytes are entered, two special bytes (0x17 followed by 0x0D,
called terminal characters) must be appended to the end of the data.
For further info and an example please refer to IR supplement available on
line.

UHBX-8X
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Response: OK <cr>
Command: CFn <cr> Stands for IR Carrier Frequency
N 1 2 3 4
IR Freq 36KHz 38KHz 40KHz 56KHz
Factory default is 38 KHz. This command should be used prior to issuing IS9
command if your IR signal is something other than 38 KHz. All infra red
remote controls have a modulation (or carrier) frequency and the vast
majority operate at 38KHz.
Response: CFn <cr>
Command: FD <cr> Stands for Restore Factory Default
This command will restore the unit to factory default condition, use with
care.
Response: FD <cr>
This indicates that the command completed successfully
Command: FW <cr> Stands for Query Firmware Version
This command will report the firmware version in the unit. If the firmware is
out of date, you can update the firmware using the USB port on the UHBX-8X.
Please see the Windows GUI Guide for further instructions.
Response: FWx.x <cr>
x.x is the version of the firmware in the device.

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6.0 Troubleshooting
If you are experiencing problems getting the extender to work properly, please
use the following troubleshooting suggestions.
a. Make sure that all of the connections on both the sender and the receiver
are solid. Loose connections are the number one cause of issues.
b. Try resetting the system by unplugging the power supply connected to the
sender, waiting 5 seconds and plugging it back.
c. Check the state of the LED’s on the front of both the sender and the
receiver. Refer to the table in section 4 to interpret the status being
indicated.
d. If the cable length is longer than 100 meters (330 ft), then you must set
the HDBaseT mode to "Long Reach". If you are using UHBX-R-PD then
you should set the mode using the little slide switch on the receiver
(below the HDMI output connector) to L.R. (Long Reach). If you are
using UH-1BTX-R receiver which does not have a mode switch, then you
have to set the mode on the UHBX-8X using the GUI via the USB
connection. If you are using an HDBaseT Class B (lite) receiver such as
the model UH-1BT-R, then you cannot set the mode to Long Reach since
the Class B devices do not support this mode
e. In L.R. mode the unit does not support deep-color, nor 4Kx2K video. So
you have to make sure your source does not output video with deep color
or 4K (UHD) video.
f. Make sure the display is compatible with the video source by connecting
them directly.
g. Make sure that the UTP or STP cable meets the requirements. Never use
low-skew cable for digital video extension (low skew cables are suited for
analog video extension, but do not work well for digital video). Read
section 3.2.6 for UTP cable requirements.
h. The extender requires that the source DDC signals of its HDMI output
operate at100 KHz or less and support clock-stretching. The vast majority
of sources meet these requirements. But if you determine that a particular
source does not (by substituting a video pattern generator, or a different
source), an HDMI transceiver may be needed. Hall Research offers the
model EMX-HD-AUD that has a compatible output, can handle virtually
any HDMI input, and has proven its ability to resolve source
incompatibility issues.

UHBX-8X
17
i. If you are experiencing periodic video dropouts (where the screen goes
blank for a few seconds every once in a while), try the following steps:
oUse a better twisted pair cable (23 Gage Shielded Cat6, or augmented
Cat6
oIf your receiver supports Long Reach mode, set the mode to Long Reach
(see steps d and e). We recommend doing this even if the cable length is
less than 100 meters since in long reach mode the data rate in the UTP
cable is much lower than in normal mode and hence the signal is less
susceptible to ground noise, interference (be it electromagnetic, radio
frequency, or static discharge), or quality of the UTP cable.
oSet the color depth of your source video to 8 bits (disable deep color), or
lower the resolution.
oChange the output mode of your sourcce from YCbCr 4:4:4 to 4:2:2
If you are still not able to get the system working properly, contact Hall
Research support (preferably via email or the form on support page of
www.hallresearch .com) with a detailed description of the issue and the
troubleshooting steps you have taken.
Do not open or try to repair the unit yourself as this will void your warranty.
To return the extender for repair, you must contact HR Support at 714-641-
6607 or via email or web. To ship the unit back for repair, make sure to obtain
a Return Material Authorization (RMA) number.

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7.0 Specifications
Video
Standards DVI (single link) and HDMI (compliant with HDMI 1.4 video specifications
including 12 bit color depth, 3D video and 4K support)
Signal type TMDS
Connectors Locking HDMI
Resolutions DVI signal VGA (640x480) thru WUXGA (1920x1200)
HDTV signal 480i through 1080p
Digital Cinema 4K (4096x2160) – Not supported in Long Reach
Audio
Formats All HDMI Embedded Audio including: LPCM 7.1CH, Dolby TrueHD and
DTS-HD Master Audio (32-192kHz sample rate)
Other Signals
DDC Pass-Thru DDC for reading EDID directly from remotely connected LCD and
HDCP handshake. DDC clock must be less than 100 KHz and the source must
support clock stretching
CEC Pass-Thru CEC for Consumer Electronics Control compatible devices
RS232 Bidirectional (full-duplex) any baud rate up to 115,200
IR Extended in both directions. Carrier modulation range from 30 KHz to 60 KHz
PoH Power-over-HDBaseT meets IEEE 802.3af standard. The UHBX-8X supports
PoH power to devices that require power up to Class 2 (6.49 watts).
General
Power Supply 100 VAC to 240 VAC, 50-60 Hz, 1.5A, internal;
Power 30 watts (102 BTU/hr) maximum
Temp/humidity Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, non-condensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, non-condensing
Cooling Convection, with internal temperature controlled fan
Mounting 1RU high, standard 19" rack
Enclosure type Steel
Dimensions 1.75" H x 7.75" W x 19" L (44.45mm H x 196.85mm W x 482.6mm L)
Product weight Extender 6.9 lb or 3.13 kg
Shipping 8 lb or 3.6 kg includes: Extender, power cord, and manual
Vibration ISTA 1A in carton (International Safe Transit Association)
Safety CE
EMI/EMC CE, FCC Class A
MTBF 90,000 hours (Calculated Estimate)
Warranty 2 years parts and labor
Specifications are subject to change without notice

© Copyright 2018. Hall Research, Inc.
All rights reserved.
1163 Warner Ave., Tustin, CA 92780
Ph: [phone]