gofanco HDExt24-HD20 User manual

2x4 HDMI 2.0 Splitter/Extender
User's Guide
G4-0112A
P/N:HDExt24-HD20

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Thank you for purchasing from gofanco. Our products
aim to meet all your connectivity needs wherever you
go. For optimum performance and safety, please read
the instructions carefully and keep this User's Guide for
future reference. If you need more information about
our products, please visit www.gofanco.com. For
technical support, email us at [email protected].
For drivers or manual download, please go to
www.gofanco.com/downloads.
Important Safety Notices
Pleasereadsafetyinstructionscarefullybeforeinstallation
and operation.
• Please pay close attention to all warnings and hints
for this device
• Do not expose this unit to rain, heavy moisture, or
liquid
• Do not put any items into the device or attempt to
modify its operation
• Do not repair the device or open the enclosure
without professional guidance to avoid electric
shocks. Doing so may void your warranty
• Keep the product in a well-ventilated location to
avoid damage from overheating
• Shut off power and make sure environment is safe
before installation
• Do not plug the HDMI cables and IR cables
in/out when the device is in use to avoid cable
damage. Make sure they are plugged into the
correct ports
• Use the included power adapter only. Make sure
the specification matches if using 3rd-party DC
power adapters

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Introduction
The 2x4 HDMI 2.0 Splitter/Extender distributes HDMI
signals from one of two source devices to 4 CAT6/7
outputs and one HDMI output (loopout).
Features
• Distributes HDMI signals from one of two inputs to
4 CAT6/7 outputs and one HDMI output (loopout)
• CAT6/7 outputs: Up to 80m (262ft) at 1080p and
70m (230ft) at 4K
• HDMI 2.0 and HDCP 2.2 compliant. 18Gbps
bandwidth and supports up to 4K@60Hz YUV 4:4:4
• Supports bi-directional IR control, PoC,
comprehensive EDID management, cascade
connection, and 4K to 1080p downscaling
• Supports auto-switching based on 5V or TMDS
detection
• Controllable by front panel buttons, IR, and RS232
Installation Requirements
• HDMI source devices (DVD player, set top box, PC,
etc.)
• HDMI displays (SDTV/Monitor, HDTV/Monitor,
projector, etc.)
• HDMI cables (not included)
• CAT cables (not included)

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PackageContents
2x4 HDMI 2.0 Splitter/Extender
• 1x 2x4 HDMI 2.0 Splitter/Extender
•4x Plastic cushions
•4x IR Receiver cables
•1x IR Emitter cable
•1x RS232 Cable (3-pin to DB9)
•1x IR cable (3.5mm (m) to 3.5mm (m)) used for IR
cascade
• 1x Power adapter (12V/2A)
• Surface mount accessories
•1x User guide
CAT 6/7 Receiver
• 4x CAT6/7 Receivers

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Product Layout
Figure 1: 2x4 HDMI 2.0 Splitter/Extender Front Panel Layout
1 Power LED
Off: No power
On: Splitter/Extender is powered on
Blinking: Splitter/Extender is in standby mode
2 HDMI Input LED On: HDMI input signal detected
Flashing: HDMI input source not detected
3SelectButton
Press to switch to the next source device
Press and hold for 3 seconds to switch between
manual switching mode and automatic
switching mode
4 EDID DIP Switch Select between Lo-Res, Default, Hi-Res modes.
See EDID Management on page 14

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Figure 2: 2x4 HDMI 2.0 Splitter/Extender Rear Panel Layout
1 HDMI Input (1-2) Connects to an HDMI source device
2
HDMI/Loop Connects to a local HDMI display
CAT 6/7 Out (1-4)
Connects to the Input of the CAT 6/7 Receivers.
It supports PoC to power the receiver. The
orange LED illuminates when an HDMI signal
is detected. The green LED illuminates when
powered on
3
IR All In
Connects to IR Receiver cable. Sends IR signals
to all CAT 6/7 Receivers to control all the
display devices.
Connects to the IR Loop Out of the previous
Splitter/Extender for cascading
IR In (1-4)
Connects to IR emitter cable. Sends IR signals to
the respective CAT 6/7 Receiver to control the
display device
4
IR Out 3.5mm jack for controlling the source device
from the CAT 6/7 Receivers
IR Loop Out Connects to the IR All In port of the next splitter
RS232 Connects to the control PC using an RS232 cable
(cable not included)
FW USB Type-A port for firmware update
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S/PDIF Audio Out Toslink output for audio de-embedding from
the HDMI output
L/R Audio Out 3.5mm analog stereo audio output for audio de-
embedding from the HDMI output
6 DC 24V Connects to the included 24V power adapter

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Figure 3: CAT 6/7 Receiver Front and Back Panel Layout
1HDMIOut ConnectstoanHDMIdisplay
2 CAT 6/7 In
Connects to the Splitter/Extender's
CAT 6/7 outputs using a CAT cable.
It supports PoC to power the CAT
6/7 Receiver over CAT cable
Orange LED: On when an HDMI
signal is detected
Green LED: On when the receiver is
powered on
3 IR In Connects to the IR receiver cable
4 IR Out Connects to the IR emitter cable

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Hardware Installation
1. Power off all devices including your HDMI
source(s) and HDMI display(s).
2. Connect your HDMI source device(s) to the 2x4
HDMI 2.0 Splitter/Extender's HDMI Input
connector(s)with HDMI cable(s) (HDMIcablesnot
included).
3. Connect your CAT cables between the Splitter/
Extender and CAT 6/7 Receivers.
4. Optional: Connect an HDMI display to the HDMI
Output connector of the Splitter/Extender using
an HDMI cable (HDMI cable not included). This
connection is needed only if you require local
monitoring of the HDMI signal.
5. Connect an HDMI display to each CAT 6/7
Receiver's HDMI Out connector with an HDMI
cable (HDMI cables not included).
6. Optional: Connect the IR Receiver cables and the
IR Emitter cable to the IR interface ports. This
connection is needed only if you need to control
your HDMI devices from the remote location. See
IR Control, starting on page 11, for proper IR
connection.
7. Plug the included power adapter into the Splitter/
Extender'sPowerJack,thenplugthepoweradapter
into a reliable power outlet. Note: The CAT 6/7
Receivers do not need power adapters, they can be
powered from the Splitter/Extender over CAT
cable with PoC technology.
8. Power on your HDMI source device(s) and HDMI
display(s). The Splitter/Extender is ready for use.

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ApplicationDiagram
The application diagram shows the most typical input
and output devices used with the Splitter/Extender.
Figure 4: Application Diagram
CAT Cable Wiring
We suggest both RJ-45 connectors be wired identically
using T568B wiring standard for the best performance
and compatibility.

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Source Device Switching
Manual Switching
Press the Select button to switch to the next source device,
the corressponding input LED will light up.
Auto Switching
Press and hold down the Select button for at least 3
seconds to enable auto-switching mode. The operating
parameters are shown below.
• TheSplitter/Extenderwillswitchtothefirstavailable
active input starting with HDMI In 1
• New Input: When a new source device is detected,
the Splitter/Extender will automatically switch to it
• SourceRemoved:When an activesourceisremoved,
theSplitter/Extenderwillswitchtothe first available
active source
• Power Off: The Splitter/Extender saves the last
configuration before powering off. If the last
switching mode is auto switching, the splitter will
automatically enter auto switching mode when it is
restarted. Then if the last selected source input is
still available, the Splitter/Extender will switch to
it. Otherwise, it will switch to the first available
active source input.

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IR Control
Provides IR control of the connected devices. The IR
feature is bi-directional so either the source device or the
display device(s) can be remotely controlled.
Controlling the Source Device
1. Connect an IR Emitter Cable to the IR Out port of the
Splitter/Extender.
2. Point the IR Emitter Cable's IR eye in line with the
source device's IR window.
3. Connect an IR Receiver Cable to the IR In port on
each CAT 6/7 Receiver.
Figure 5: Source Device IR Control Connection Diagram

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Controlling the Display Device(s) using IR In
Allowsyou to remotelycontrol each displayindividually.
1. Connect an IR Receiver Cable to the IR In port of the
Splitter/Extender.
2. Connect an IR Emitter Cable to the IR Out port on
each CAT 6/7 Receiver.
3. Point the IR Emitter Cable's IR eye in line with the
display's IR window.
Figure 6: Display Device IR Control Connection Diagram

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Controlling the Display Device(s) using IR All In Port
Allows remote controlling of all of the display devices
simultaneously.
1. Connect an IR Receiver Cable to the IR All In port of
the Splitter/Extender.
2. Connect an IR Emitter Cable to the IR Out port on
each CAT 6/7 Receiver.
3. Point the IR Emitter Cable's IR eye in line with the
display's IR window.
Figure 7: Display Device IR Control Connection Diagram
Note:
The IR All In will relay the received IR signal to all the
CAT6/7outputswhereas the IR INconnectorsassociated
with each CAT 6/7 output will only relay the IR signal to
its respective CAT 6/7 Receiver. The IR All In can also be
connectedtotheIRLoopOutofanotherSplitter/Extender
when two or more units (up to a maximum of five) are
connected in a cascade mode while using only a single IR
detector at the start of the cascade connection.
The IR Out connector will output the IR signals received
from any of the CAT 6/7 Receivers, so as to allow control
of a source from any of the remote CAT 6/7 Receivers.

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EDID Management
EDID is used by the source device to match the video
resolution to the connected display(s). The source device
obtains its EDID from the 1st connected display as default
setting. However,sincedisplayswithdifferentcapabilities
are often connected to the Splitter/Extender, the EDID
DIP switch can be used to set the EDID to a fixed value to
offer the best compatiblity accross all connected displays.
Front Panel EDID Switch
L. RES
The Extender/Splitter reads EDID from all
connected displays, and then the source device
will automatically use the EDID from the display
with the lowest resolution
Default The factory default EDID is 4K@60Hz, deep
color, stereo audio
H. RES
The Extender/Splitter reads EDID from all
connected displays, and then the source device
will automatically use the EDID from the display
with the highest resolution

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Resolution Downscaling
The Splitter/Extender supports 4K resolution
downscalingforcompatibility with 1080pdisplay devices
shown in the table below.

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RS232 Control
Connect the control PC's RS232 serial port to the Splitter/
Extender's RS232 port using the included RS232 cable.
RS232 Control Software
Works with most serial command and monitoring
software such as CommWatch.
• Download CommWatch or the serial command
software of your choice
• Installation: Copy the control software files and
paste them to the hard drive of your PC
• Uninstallation: Delete all control software files
from the PC
Basic Settings
1. Connect all input and output devices as needed,
then connect the PC to the Splitter.
2. Double click the software icon to run the control
software. The icon is shown below.
The examples shown on this page and the following page
are from CommWatch serial command software.

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Control Software Interface
Set the COM port, Baud rate, data bit, stop bit, and parity.
Enter commands into the Command Sending Area.

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RS232 Commands
System Commands
Signal Switching Commands
The splitter and compatible receivers features RS232 ports
to transmit RS232 signals from computer to control far-end
third-party devices by using 3-pin to DB9 cable and a
RS232 control software, such as docklight. After installing
the RS232 control software, please set the parameters of
COM number, bound rate, data bit, stop bit and the parity
bit correctly. Compatible receivers must be able to
communicate at 9600, 19200, 38400, 57600, or 115200 baud.
The splitter requires the following communication protocol
parameters: Baud rate: 9600 (default) Data bit: 8 Stop
bit: 1 Parity bit: none
Note:
All commands need to be ended with “<CR><LF>”.
In the commands, “[”and “]” are not needed to be typed
in actual operation.
Type the command carefully, it is case-sensitive.

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Signal Switching Commands Cont'd

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Signal Switching Commands Cont'd
CEC Commands