Hall Research Technologies GEM-EX User manual

User’s Manual
GEM-EX
Dual 4K HDMI, USB, AUDIO, & RS-232 over 1
CAT6 Extender with Daisy-Chainable Receivers
Part Number Function
GEM-EX-S Dual Video, USB, Audio, RS-232 Sender with 2-Port
Splitter
GEM-EX-R Dual Video, USB, Audio, RS-232 Receiver with
Daisy-Chain output
UMA1291 Rev NC
Order toll
-
free in the U.S.
800
-
959
-
6439
FREE technical support: 714-641-6607 or [email protected]
Hall Research, 1163 Warner Ave. Tustin, CA 92780
www.hallresearch.com
CUSTOMER
SUPPORT
INFORMATION

GEM
-
EX
2
© Copyright 20
20 Hall Research, LLC
.
Table of Contents
1.0 Introduction ................................................................................. 3
Product Description ............................................................................... 3
Features ................................................................................................. 4
2.0 Package Contents ........................................................................ 5
3.0 Setup .............................................................................................. 5
Installation ............................................................................................. 5
DisplayPort Adapters ............................................................................ 6
Single Video Display Receiver ............................................................. 7
RS-232 Baud Rate Programming and Dual-Port Support ..................... 7
4.0 Connector and Indicator Functions ......................................... 8
GEM-EX-S (front) ................................................................................ 8
GEM-EX-S (Rear) ................................................................................. 9
GEM-EX-R (front) .............................................................................. 10
GEM-EX-R (Rear) .............................................................................. 11
5.0 Troubleshooting ........................................................................ 12
Contacting Hall Research .................................................................... 12
6.0 Specifications ............................................................................. 13
FCC Notice
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference even if it causes undesired operation.
This equipment has been desinged to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy, and if
it is not installed and used in accordance with the instruction manual, it may cause harmful
interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference, in which case the user will be required to correct the
interference at his own expense.

Dual 4K Extender with USB 2.0, Audio, and RS
-
232
© Copyright 20
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1.0 Introduction
Product Description
The GEM-EX is comprised of the GEM-EX-S sender and the GEM-EX-R receiver.
The system is used to extend USB 2.0, Audio, dual RS-232, and dual display
HDMI video supporting various resolutions including 1080p @ 60 Hz and 4K
UHD @ 30 Hz. These signals are extended to one or more receivers up to a
distance of 100 m (328 ft.) over a single CAT6 cable.
The sender features two HDMI inputs, one USB input, one analog audio input,
and a dual-port capable RS-232 port for connection to a dual-head PC. The audio
input is embedded into HDMI A. It provides two local HDMI outputs
(corresponding to the two HDMI inputs) and features an internal USB hub with
two local USB outputs. Additionally, there are two separate RJ45 output ports to
extend these signals to multiple remote locations.
The receiver provides two HDMI outputs, 6 USB ports, an analog audio output,
and a dual-port capable RS-232 port. Two of the USB ports are labeled for use
with keyboard and mouse; however, they can also be connected to other USB
devices such as KVM switches or touch-screen displays if desired. The audio
output is de-embedded from HDMI A.
For connection of other USB devices such as printers or scanners, four
additional general-purpose USB 2.0 ports are available. For security purposes,
USB memory devices are not supported by default. If you want to enable USB
memory support, please contact Hall Research.
In a setup with one Sender going to only one Receiver, the USB ports
automatically pair with the Sender. However when there is more than one GEM-
EX Receiver connected to the same Sender, only one Receiver can be paired at a
given time. Pairing is accomplished using a push button on the front panel of the
Receiver. A corresponding LED next to the button indicates USB pairing status
with the Sender.
Each Receiver features an RJ45 “LINK OUT” port that can be daisy-chained to
down-stream Receivers. All signals are re-buffered, so the LINK OUT port can
drive cables to 100 meters long.
It is important to note that the RJ45 output ports (on the Sender or the
Receiver), can also be connected to ULTRA-V Receivers. ULTRA-V Receivers
provide only one video output and no USB. The ULTRA-V Receivers show Video
A by default, however, they can be configured to display Video B if desired.
Please refer to the ULTRA-V User’s Manual for further details.

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-
EX
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Typical Connection Diagram
Features
 Supports high resolution HDMI video including FHD
(1920x1080), WQHD (2560x1440), and 4K UHD (3840x2160)
 Two video streams, one USB port, one audio signal, and two RS-
232 ports extended over a single CAT6 cable up to 100 m/328 ft.
 Full plug-and-play support with USB keyboard, mouse, and
connected peripherals
 Computer OS independent - No driver or software required
 Local HDMI and USB outputs on the Sender
 Two Sender extension outputs and one Receiver daisy-chain
output to distribute video to multiple locations
 No video calibration required; no video quality reduction due to
cable length or resolution
 Locking power supply connector to prevent inadvertent
disconnection
 Sender includes mounting ears for standard 19” rack; Receiver
includes mounting brackets for surface mounting.

Dual 4K Extender with USB 2.0, Audio, and RS
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232
© Copyright 20
20 Hall Research, LLC
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2.0 Package Contents
GEM-EX-S
(x 1) GEM-EX-S
(x 2) RACK MOUNT EARS and screws
(x 1) POWER SUPPLY (Hall P/N 511-IEC5V4AP5L)
(x 1) USER’S MANUAL CARD
GEM-EX-R
(x 1) GEM-EX-R
(x 2) Surface-mount brackets
(x 1) POWER SUPPLY (Hall P/N 511-IEC5V4AP5L)
(x 1) USER’S MANUAL CARD
3.0 Setup
Installation
 Connect the PC HDMI outputs to the GEM-EX-S ports marked “HDMI A IN”
and “HDMI B IN” using quality HDMI cables
 Connect the PC USB to the GEM-EX-S port marked “USB IN” using a USB
cable
 Optionally, connect PC analog audio to the GEM-EX-S port marked
“AUDIO IN” using a 3.5 mm audio cable, to embed an external audio signal
into HDMI A
 Optionally, connect an RS-232 device (or two, using Hall Research
CA10223 and CA10224 cables.) Use PC GUI to set baud rate(s)
 Optionally, connect HDMI displays to the HDMI A/B OUT ports, and USB
peripherals to the USB LOCAL ports
 Using a CAT6 cable, connect the GEM-EX-S “LINK OUT” port to the GEM-
EX-R “LINK IN” port
 Connect remote HDMI displays to the GEM-EX-R HDMI A and HDMI B
output ports
 Connect keyboard, mouse, KVM Switch, or touch-screens to the GEM-EX-
R ports marked as KBRD/MOUSE
 Optionally, connect other USB devices to any of the USB 2.0 ports
 Optionally, connect external speakers to “AUDIO OUT” to use audio from
“HDMI A” or “AUDIO INPUT” of GEM-EX-S
 Once all other connections have been made, apply power to the GEM-EX-S
and GEM-EX-R using the included power supplies

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-
EX
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© Copyright 20
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DisplayPort Adapters
While HDMI is the most widely adopted video standard, there are a number of
computer and display manufacturers that rely on DisplayPort for higher
resolutions such as 2560 or 4K. Hall Research offers 4K compatible adapters
to convert between these two video standards.
To connect to a source (PC) with Displayport output, use GC-DP-HD.
Model GC-DP-HD: DisplayPort source to HDMI output
Virtually all monitors and TVs have HDMI (or DVI) inputs, but if your display
only has Display port input, the following adapter converts HDMI to DP.
Model GC-HD-DP: HDMI source to DisplayPort output
NOTE These adapters are unidirectional. For example, the
DisplayPort to HDMI adapter cannot convert an HDMI signal
to DisplayPort.

Dual 4K Extender with USB 2.0, Audio, and RS
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Single Video Display Receiver
In cases where only a single video display is required, an ULTRA-V-R Receiver
can be connected to either the GEM-EX Sender or Receiver. The Receiver will
display the video coming from HDMI A by default, or it can be configured to
display video from HDMI B if desired. Please refer to the ULTRA-V User’s
Manual for more information.
Model ULTRA-V-R: Single HDMI output Receiver
RS-232 Baud Rate Programming and Dual-Port Support
The RS232 ports on the GEM-EX-S and GEM-EX-R have different baud rates by
default. RS-232 Port A defaults to 9600 baud. RS-232 Port B defaults to 115200
baud.
These can change to any standard rate between 2400 and 15200 using free PC
GUI software. Both sender and receiver are programmed separately.
The GEM-EX has a dual-port RS-232
output, supporting a second RS-232
extension.
This requires the use of adapter cables
CA10233 and CA10224, sold separately.
NOTE Baud Rate Conversion: When the GEM-EX-S and GEM-EX-R
are set to different baud rates; they will automatically
convert between the two.

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-
EX
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4.0 Connector and Indicator Functions
GEM-EX-S (front)
1 2 3 4
1) SERVICE: USB-Mini connection, used for upgrading firmware or
configuring parameters such as EDID and RS-232 baud rates via free PC
GUI.
2) USB HUB: LED indicates that the hub is active (note that PC/Host has
the ability to put the hub in “selective suspend” mode in which case the
Hub LED will turn off. Hosts usually do this if no downstream devices
are connected to the hub.
3) VID/LINK: Status indicators of HDMI A/B
a. VID: This LED is lit when HDMI video input is present.
b. LINK: When this LED is solidly on, it indicates the system has
detected at least one Receiver and is actively transmitting video
and data. Blinks if the system has never seen a compatible
Receiver or it is not transmitting video.
4) POWER: Power LED lights when power is supplied.

Dual 4K Extender with USB 2.0, Audio, and RS
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GEM-EX-S (Rear)
1 2 3 4 5 6 7
1) HDMI A IN/OUT: HDMI A input port and local output. HDMI A IN is
extended to GEM-EX-R HDMI A OUTPUT.
2) HDMI B IN/OUT: HDMI B input port and local output. HDMI B IN is
extended to GEM-EX-R HDMI B OUTPUT.
3) AUDIO IN: Analog audio input. When connected, it embeds and replaces
the audio in HDMI A. Audio is extended to GEM-EX-R HDMI A and
AUDIO OUT ports.
4) USB HOST IN/LOCAL: USB Input port, and local outputs. HOST IN is
extended to GEM-EX-R USB ports.
5) RS-232: RS-232 communication port, extended to GEM-EX-R. Port A
defaults to 9600 baud. Port B defaults to 115200 baud.
6) REMOTE OUTPUTS/LINK 1/LINK 2: Two separate outputs for
connection to remote GEM-EX-R Receivers. Use CAT6 cable to extend
up to 100 m/328 ft.
a. GREEN LED on left side of ports indicates an active link to
GEM-EX-R or ULTRA-V-R.
7) 5V DC: Power input. Connect supplied 5V DC locking power supply to
power Sender.

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-
EX
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GEM-EX-R (front)
1 2 3 4
1) SERVICE: USB-Mini connection, used for upgrading firmware or
configuring parameters such as USB Mass Storage Class device filtering
or RS-232 baud rates via free PC GUI.
2) USB 2.0 PAIRING: When only one Receiver is connected to a Sender, the
Receiver will automatically pair by default and the PAIRING LED will be
on. If multiple Receivers are connected, the user needs to decide which
Receiver’s USB ports is to be paired with the Sender. To change pairing
to a different Receiver, press the button and the PAIRING LED will light.
If the pairing LED is solidly lit, the Receiver has sucessfully paired with
the Sender, but if it is blinking, the pairing was unsuccessful and you
should press the pairing button again until the LED is solidly lit.
3) HDMI A/B VID/LINK: Status indicators of HDMI A/B
a. VID: This LED is lit when HDMI video is being output.
b. LINK: This LED indicates the system is actively receiving video
and data. Blinks if the system is not receiving video.
4) POWER : Power LED lights when power is supplied.

Dual 4K Extender with USB 2.0, Audio, and RS
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© Copyright 20
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GEM-EX-R (Rear)
1 2 3 4 5 6
1) HDMI A/HDMI B OUTPUT: Ouputs HDMI from GEM-EX-S HDMI
A/HDMI B Input ports respectively.
2) USB K/M AND 2.0: Connect keyboard/mouse/KVM Switches or other
HID input devices including touch-screens to K/M ports. The rest are
general purpose ports for other USB devices such as printers or
scanners. By default USB memory devices are not allowed and these
USB ports do not support USB webcams.
3) AUDIO OUT: Analog audio output, extracted from HDMI A.
4) RS-232: RS-232 communication port, extended to GEM-EX-S. Port A
defaults to 9600 baud. Port B defaults to 115200 baud.
5) LINK IN/LINK OUT: LINK IN receives video/USB from GEM-EX-S; LINK
OUT is used to daisy-chain to another GEM-EX-R or ULTRA-V-R.
 GREEN LED on left side of ports indicates an active link to
GEM-EX-S.
6) DC 5V: 5V DC: Power input. Connect supplied 5V DC locking power
supply to power Reciever.

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-
EX
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© Copyright 20
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5.0 Troubleshooting
If you are experiencing problems getting the GEM-EX to work properly, please
use the following troubleshooting suggestions.
 Ensure that all connections are secure. Check all status LEDs to ensure
proper operation.
 Try resetting the system by unplugging the power supply, waiting 5
seconds and plugging it back.
 Try restoring factory defaults using the PC GUI.
Contacting Hall Research
If you determine that your GEM-EX is malfunctioning, do not attempt to repair
the unit.
Instead, contact Hall Research Technical Support at 714-641-6607. To return
the unit to Hall Research you must first get a Return Authorization (RMA)
number.
Package the unit carefully, if returning. We recommend that you use the original
container.
NOTE There are no user-serviceable parts inside. Do not attempt to
try to repair the unit yourself, as this will void your
warranty.

Dual 4K Extender with USB 2.0, Audio, and RS
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232
© Copyright 20
20 Hall Research, LLC
.
13
6.0 Specifications
Video
Standards
DVI (single link)
HDMI 1.4a video specifications including 12 bit color depth, 3D video
HDCP 1.4
Resolutions
PC
VGA to WQXGA (2560x1600)
HDTV 480p to 4K/UHD including QHD (2560x1440)
Refresh Rates
60 Hz for resolutions up to and
including HD (1920x1080) and WUXGA (1920x1200
30 Hz for resolutions above and including QHD (2560x1440)
Other Signals
USB
GEM
-
EX
-
S: USB 2.0 (2) from built
-
in hub
GEM-EX-R: USB 1.1 (2) and USB 2.0 (4)
AUDIO
GEM
-
EX
-
S: Analog Line Level input. Embeds into
HDMI A.
GEM-EX-R: Analog Line Level output. Extracted from HDMI A.
RS
-
232
DB9
with
(
2
) S
erial
P
orts
.
Supports baud rates from 2,400 to 115,200
Connectors
GEM
-
EX
-
S
(2) HDMI Inputs , (2) HDMI Outputs (local)
(1) USB-B Host Port, (2) USB-A Device Ports
(1) 3.5 mm Analog Stereo Audio Input
(1) DB9-F RS-232 port (dual-port capable)
(2) RJ45 Link Outputs
(1) 2.1 mm Locking DC Power Input
GEM
-
EX
-
R
(2) HDMI Outputs
(2) USB-A 1.1 Device Ports
(4) USB-A 2.0 Device Ports
(1) 3.5 mm Analog Stereo Audio Output
(1) DB9-M RS-232 port (dual-port capable)
(1) RJ45 Link Input , (1) RJ45 Link Output
(1) 2.1 mm Locking DC Power Input
General
Power S
upply
100 VAC to 240 VAC, 47
-
63 Hz, External;
5
VDC
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
Typical DC
Current Draw
5
VDC,
4.0
A Power Supply
GEM-EX-S: 2.5 A DC depending on # and type of connected USB devices
GEM-EX-R: 1.5 A DC depending on # and type of connected USB devices
Cooling
Convection
Enclosure type
Metal (Steel)
Dimensions
GEM
-
EX
-
S: 6.09” L x 11.23” W x 1.66” H
GEM-EX-R: 5.04” L x 9.00” W x 1.12” H
Product weight
Model Only
GEM-EX-S: 2.8 lbs (1.3 kg)
GEM-EX-R: 1.3 lbs (0.6 kg)
Shipping
GEM-EX-S: 4.4 lbs (2.0 kg)
GEM-EX-R: 3.1 lbs (1.4 kg)
Safety
CE
EMI/EMC
CE, FCC Class A
MTBF
9
0,000 hours (
e
stimate)
Warranty
3 years parts and labor
Specifications are subject to change without notice

© Copyright 2020. Hall Research, Inc.
All rights reserved.
1163 Warner Ave., Tustin, CA 92780
Ph: [phone]