Black Box VX-HDMI-4KIP-TX User manual

24/7 TECHNICAL SUPPORT AT 1.877.877.2269 OR VISIT BLACKBOX.COM
MEDIACENTO
IPX 4K
VX-HDMI-4KIP-TX, VX-HDMI-4KIP-RX
USER MANUAL
SET
RESET
EDID
USB
Select
V.Profile
SFP
Link
Serial over IP
Video Channel
CH+
CH-
USB
IR
Receiver
IR
Emitter
SET
RESET
EDID
Select
V.ProfileSFP
Link
Serial over IP
Video Channel
CH+
CH-
USB
IR
Receiver
IR
Emitter

2
TABLE OF CONTENTS
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1. SPECIFICATIONS........................................................................................................................................................................... 4
2. OVERVIEW...................................................................................................................................................................................... 6
2.1 Introduction...............................................................................................................................................................................................6
2.2 Features ....................................................................................................................................................................................................6
2.2.1 Basic Features ....................................................................................................................................................................................................6
2.2.2 Advanced Features............................................................................................................................................................................................7
2.3 What’s Included........................................................................................................................................................................................7
2.4 Hardware Description..............................................................................................................................................................................8
2.4.1 Transmitter ..........................................................................................................................................................................................................8
2.4.2 Receiver..............................................................................................................................................................................................................12
3. CONNECTIONS............................................................................................................................................................................ 15
3.1 One-to-One Mapping Extension............................................................................................................................................................15
3.2 Multicasting............................................................................................................................................................................................15
4. NETWORK SETUP AND HARDWARE SWITCHING ................................................................................................................... 17
5. HARDWARE OPERATION............................................................................................................................................................ 18
5.1 EDID Update by Buttons.........................................................................................................................................................................18
5.1.1 “EDID Update” for HDMI Sink Device on TX or RX Side ............................................................................................................................18
5.1.2 “EDID Update” to be Factory Default.............................................................................................................................................................18
5.2 Audio Over IP Extension ........................................................................................................................................................................18
5.3 Video Profile ........................................................................................................................................................................................... 19
5.4 Hotkey Video Channel Switch on RX Side ...........................................................................................................................................20
6. ACCESS TO WEB UI..................................................................................................................................................................... 21
7. OPERATION FOR WEB UI ............................................................................................................................................................ 23
7.1 Configuring IP Mode...............................................................................................................................................................................23
7.2 Device Mode of Extension Application.................................................................................................................................................24
7.2.1 How to Change to Extender Mode................................................................................................................................................................24
7.2.2 How to Change to Matrix Mode.....................................................................................................................................................................27
7.3 Jumbo Frame Requirement for the Link Between TX and RX............................................................................................................28
7.4 Automatically Copy EDID of RX Display ...............................................................................................................................................29
7.5 Output Video Scaling in RX....................................................................................................................................................................30
7.6 Last Image Output Time for Source Content Lost ..............................................................................................................................31
7.7 Output Video Rotation in RX..................................................................................................................................................................32
7.8 Serial (RS-232) Over IP Extension.........................................................................................................................................................33
7.9 USB Over IP Extension ...........................................................................................................................................................................35
7.10 Matrix Connection Management with Displaying TX’s Source Content..........................................................................................35
7.11 Video Wall..............................................................................................................................................................................................37

3
CHAPTER 1: HEADLINE
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APPENDIX A. FIBER MODULES AND CABLES.............................................................................................................................. 42
APPENDIX B. REGULATORY INFORMATION ................................................................................................................................ 43
B.1 CE and RoHS2.........................................................................................................................................................................................43
B.2 NOM Statement .................................................................................................................................................................................... 44
APPENDIX C. DISCLAIMER/TRADEMARKS ................................................................................................................................. 45
C.1 Disclaimer...............................................................................................................................................................................................45
C.2 Trademarks Used in this Manual..........................................................................................................................................................45

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CHAPTER 1: SPECIFICATIONS
TABLE 1-1. SPECIFICATIONS
SPECIFICATION DESCRIPTION
Connectors
Transmitter
Video Output: (1) HDMI female
Serial Control Port (RS-232): (1) DB9 female
Video Input: (1) HDMI female
Network Port: RJ-45 Ethernet
Audio + IR + RS-232 + USB Extension over IP)
Fiber Port: SFP Ethernet
USB interface: (1) USB Type B female
Audio: 2-way analog audio, (1) Line IN, (1) Line OUT
Receiver
Console Connection:
Video Output: (1) HDMI female
Serial Control Port (RS-232): (1) DB9 male
Network Port: RJ-45 Ethernet
Audio + IR + RS-232 + USB Extension over IP)
Fiber Port: SFP Ethernet
USB interface: 2-way analog audio: (1) Mic IN, (1) Line OUT
Audio Support
Transmitter and Receiver
Supports high-definition audio (HD) 5.1/6.1/7.1 surround sound:
Dolby TrueHD, DTS-HD Master Audio
LPCM channels up to 7.1 channels 192 kHz
User Controls
Hardware Switches
Set/Reset: Pushbutton
Function Selection: Pushbutton
Video Channel: Pushbutton (CH+/CH-)
Infrared Remote Bidirectional, through 20 to 60 kHz, two-way passthrough
Indicators
Transmitter
Status LEDs:
Power (blue), Link (blue)
Function Selection LEDs:
EDID Copy (blue)
SFP Status (blue)
Video Profile Selection (Video or graphic mode) (blue)
Receiver
Status LEDs:
Power (blue), Link (blue)
Function Selection LEDs:
EDID Update (blue)
SFP Status (blue)
Video Profile Selection (Video or graphic mode) (blue)
USB Link (upstream) (blue)

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CHAPTER 1: SPECIFICATIONS
TABLE 1-1 (CONTINUED). SPECIFICATIONS
SPECIFICATION DESCRIPTION
Additonal Specs
DDC Supported DDC, DDC2, DDC2B
Extension Cable Type and Length Ethernet, CAT5e/6 up to 328 ft. (100 m)
Fiberoptic (SFP module), single-mode, up to 30 km
Maximum Video Resolution Up to 4096 x 2160 @ 30 Hz
Power
Power Supply (1) 5-VDC, 3-A power supply
Power over Ethernet (PoE)
Complies with IEEE 802.3at standard, Class 4;
Power: Normal input: 48 VDC;
Input Range: 36 to 57 VDC;
Consumption: 10.5 W, CAT6, 328 ft. (100 m)
Environmental
Operating Temperature 32 to 122° F (0 to 50° C)
Storage Temperature -4 to +140° F (-20 to +60° C)
Humidity 0 to 80% relative humidity
Mechanical
Dimensions 1.25"H x 3.58"W x 7.34"D (3.2 x 9.8 x 18 cm)
Weight Transmitter: 1.034 lb. (470 g)
Receiver: 1.036 lb. (471 g)
Housing Material Metal Chassis
TABLE 1-2. COMPATIBLE SFPS
PART NUMBER DESCRIPTION
LFP411 SFP, 1250-Mbps Fiber with Extended Diagnostics, 850-nm Multimode, 550 m LC
LFP412 SFP, 1250-Mbps Fiber with Extended Diagnostics, 1310-nm Multimode, 2 km LC
LFP413 SFP, 1250-Mbps Fiber with Extended Diagnostics, 1310-nm Single-Mode, 10 km LC
LFP414 SFP, 1250-Mbps Fiber with Extended Diagnostics, 1310-nm Single-Mode, 30 km LC
LFP418 SFP, 1250-Mbps Fiber with Extended Diagnostics, 1550-nm Single-Mode, 80 km, LC
NOTE: Also should support most gigabit fiber SFP modules

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CHAPTER 2: OVERVIEW
2.1 INTRODUCTION
The MediaCento IPX 4K extends HDMI, USB, Audio, RS-232, and IR over IP via CATx or single-mode fiberoptic cable. The extender
consists of two units: one transmitter and one receiver.
NOTE: You can link the transmitter and receiver together via one CATx cable or one single-mode fiberoptic cable, but not both types of cable
at the same time.
Multicasting supports multiple transmitters (TX) and receivers (RX) that can be arranged in a crosspoint matrix architecture.
The extender supports 7.1 CH audio, 3D video, and USB 2.0/1.1.
You can use the built-in web user interface (UI) for configuration and operation.
2.2 FEATURES
2.2.1 BASIC FEATURES
Uses one UTP/STP CATx cable OR one single-mode fiberoptic cable between each transmitter/receiver link
Supports a visually lossless compression algorithm
Extends HDMI Digital Audio/Video up to 330 feet (100 meters) between Transmitter and Receiver (point-to-point) using CATx cable
or up to 6.2 miles (10 kilometers) between Transmitter and Receiver over single-mode fiberoptic cable using a standard SFP (Small
Form-factor Pluggable) module.
Compatible SFPs include Black Box part numbers LFP411, LFP412, LFP413, LFP414, and LFP418. Also should support most gigabit
fiber SFP modules
Supports Ultra HD video 4096 x 2160 @ 30 Hz and 1920 x 1200 @ 60 Hz (reduced blanking)
Supports all 3D image formats
Provides repeating/distributing/matrix extension through a Gigabit Ethernet Switch with a transceiver installed that is compatible
with both Transmitter and Receiver units and video wall
Compatible with USB 2.0 devices at data rates up to 480 Mbps and backward with USB 1.1. The transmitter uses one USB Type B
host interface and the receiver uses four USB Type A device interfaces.
Can map different transmitter sources or create a grouping loop for each receiver that corresponds to a video channel
Wall-mount housing design with rack mountable bracket enables easy and robust installation
Audio supports 7.1CH LPCM, DTS, Dolby, analog LINE-IN/LINE-OUT
Supports Interlaced and Progressive Display Modes
Provides DDC/DDC2B, Hot-Plug Detection (HPD) and complies with HDCP standards
Supports Default EDID and EDID copy function for optimal PC-to-Screen performance
Uses a bidirectional Infrared Remote (IR) signal and RS-232 control communication (Transmitter and Receiver)
Transmitter has a 4K HDMI local loopback output
Uses a 7-segment LED display for video channel indication
Includes IR remote control for video channel setting
Operates as a PoE powered device (PD) using IEEE 802.3at PoE+

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CHAPTER 2: OVERVIEW
2.2.2 ADVANCED FEATURES
Web UI shows the linking connection status for all Transmitter (TX) and Receiver (RX) units
Switches TX-RX connections via web UI, pushbuttons, IR remote control or keyboard hotkey
Can upgrade firmware via web UI
Visualizes video wall configuration
Transmitter (TX) unit monitors HDMI-in and synchronizes HDMI-out
If a firmware update fails, the MediaCento IPX 4K recovers redundant Flash ROM
Two-digit LED display indicates current transmitting and receiving channel
Supports 99 selectable channels to transmit or receive
2.3 WHAT’S INCLUDED
Your package should include the following items. If anything is missing or damaged, contact Black Box Technical Support
at 877-877-2269 or [e-mail]
MediaCento IPX 4K Transmitter (VX-HDMI-4KIP-TX) includes:
(1) MediaCento IPX 4K Transmitter
(1) 5-VDC, 3-A power supply
(1) IR blaster cable
(1) USB 2.0 cable
(1) Audio/mic cable
This user manual
MediaCento IPX 4K Receiver (VX-HDMI-4KIP-RX) includes:
(1) MediaCento IPX 4K Receiver
(1) 5-VDC, 3-A power supply
(1) IR receiver cable
(1) IR remote control
This user manual

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CHAPTER 2: OVERVIEW
2.4 HARDWARE DESCRIPTION
The MediaCento IPX 4K consists of a Transmitter unit and a Receiver unit.
2.4.1 TRANSMITTER
Figure 2-1 shows the front panel of the transmitter. Table 2-1 describes its components.
1 2 3 4 5 6 7 8 9 10 11
FIGURE 2-1. TRANSMITTER FRONT PANEL
TABLE 2-1. TRANSMITTER FRONT PANEL COMPONENTS
NUMBER IN
FIGURE 2-1 COMPONENT DESCRIPTION
1 Serial over IP: RS-232 extension port Connects to source device’s RS-232 port
2a Power On status LED Lights steady when power on sequence is completed
2b Link LED for LAN link status
• Goes out when LAN link between Transmitter and Receiver/Gigabit Ethernet Switch is off
• Blinks when LAN link between Transmitter and Receiver/Gigabit Ethernet Switch is on
and there is no image data stream on the LAN link
• Lights steady ON when LAN link between Transmitter and Receiver/Gigabit Ethernet
Switch is on and there is an image data stream on the LAN link
2c SFP LED for fiber link status
• Lights steady ON when Transmitter is powered on
• Blinks when there is an image data stream on the fiber link between Transmitter and
Receiver
3a Set/Reset button
Press to set a function, reset system, or reset to default
• Short press for setting the following functions
- EDID: Update EDID stored in Transmitter with EDID of display connecting to Transmitter
- Video Profile: Configure video profile with video or graphic mode
- Video Channel: Select video channel
• Long press (3 sec) for System Reset when no above functions selected to be set
• Longer press (6 sec) for Reset to Default when no above functions selected to be set

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CHAPTER 2: OVERVIEW
TABLE 2-1 (CONTINUED). TRANSMITTER FRONT PANEL COMPONENTS
NUMBER IN
FIGURE 2-1 COMPONENT DESCRIPTION
3b Select button
Select EDID, video profile, or video channel
• Press to cycle through setting EDID / Video Profile / Video Channel / Quit “Select” in sequence
• Slow blink in the related LEDs when selecting EDID or Video Profile
• Slow blink in 7-segment LED display when selecting Video Channel
• Lights steady ON EDID LED indicator, Video Profile LED indicator and 7-segment LED display when quitting
“Select”
4a EDID LED
Indicates EDID update status
• Blinks when EDID update is ready to be set
• Press SET/RESET button to set/clear EDID update
• Lights steady ON when EDID stored in Transmitter is updated with EDID of displayconnected to Transmitter
• Not lit when EDID is not being updated
4b V. Profile LED
Indicates video/graphic mode
• Blinks when Video Profile is ready to be set
• Press SET/RESET button to set Video Profile to video/graphic mode
• The short OSD pops up on Receiver’s display to show the setting result of video/graphic mode
• Lights steady ON when Video Profile is set to video mode
• Not lit when Video Profile is set to graphic mode
5 Video Channel LED
7-segment LED display for Video Channel indication
• Blinks when Video Channel is ready to be set
• Press CH+ or CH- button to change video channel
• Press SET/RESET button to set the video channel change
6 CH+/CH- pushbuttons Press to change video channel
7IR Emitter Connector used for emitting signal of IR extension over IP
8 IR Receiver Connector used for receiving signal of IR extension over IP
9 Audio connector Connector for analog audio output of audio extension over IP (speaker)
10 Audio connector Connector for analog audio input of audio extension over IP (microphone)
11 USB Type B connector Links to host source device for USB extension over IP

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CHAPTER 2: OVERVIEW
Figure 2-2 shows the back panel of the transmitter. Table 2-2 describes its components.
FIGURE 2-2. TRANSMITTER BACK PANEL

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CHAPTER 2: OVERVIEW
TABLE 2-2. TRANSMITTER BACK PANEL COMPONENTS
NUMBER IN
FIGURE 2-2 COMPONENT DESCRIPTION
1 SFP cage Fiberoptic SFP module for link between transmitter and receiver installs here
2 RJ-45 connector Used for LAN Link between transmitter and receiver/Gigabit Ethernet switch
3 HDMI In connector Connects to HDMI source for the source signal of HDMI extension over IP
4 HDMI Out connector Loops back the source signal to Transmitter’s connected display
5 5-VDC jack Links to 5-VDC power supply

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CHAPTER 2: OVERVIEW
2.4.2 RECEIVER
Figure 2-3 shows the front panel of the receiver. Table 2-3 describes its components.
1 2 3 4 5 6 7 8 9 10 11 12
FIGURE 2-3. RECEIVER FRONT PANEL
TABLE 2-3. RECEIVER FRONT PANEL COMPONENTS
NUMBER IN
FIGURE 2-3 COMPONENT DESCRIPTION
1 Serial over IP: RS-232 extension port Connects to sink device’s RS-232 port
2a Power On status LED Lights steady when power on sequence is completed
2b Link LED for LAN link status
• Goes out when LAN link between Transmitter and Receiver/Gigabit Ethernet Switch is off
• Blinks when LAN link between Transmitter and Receiver/Gigabit Ethernet Switch is on
and there is no image data stream on the LAN link
• Lights steady ON when LAN link between Transmitter and Receiver/Gigabit Ethernet
Switch is on and there is an image data stream on the LAN link
2c SFP LED for fiber link status
• Lights steady ON when Transmitter is powered on
• Blinks when there is an image data stream on the fiber link between Transmitter and
Receiver
3a Set/Reset button
Press to set a function, reset system, or reset to default
• Short press for setting the following functions
- EDID: Update EDID stored in Transmitter with EDID of display connecting to Receiver
- USB: Link or unlink USB extension
- Video Profile: Configure video profile with video or graphic mode
- Video Channel: Select video channel
• Long press (3 sec) for System Reset when no above functions selected to be set
• Longer press (6 sec) for Reset to Default when no above functions selected to be set

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CHAPTER 2: OVERVIEW
TABLE 2-3 (CONTINUED). RECEIVER FRONT PANEL COMPONENTS
NUMBER IN
FIGURE 2-3 COMPONENT DESCRIPTION
3b Select button
Select EDID, video profile, or video channel
• Press to cycle through setting EDID / Video Profile / Video Channel / Quit “Select” in sequence
• Slow blink in the related LEDs when selecting EDID or Video Profile
• Slow blink in 7-segment LED display when selecting Video Channel
• Lights steady ON EDID LED indicator, Video Profile LED indicator and 7-segment LED display when quitting
“Select”
4a EDID LED
Indicates EDID update status
• Blinks when EDID update is ready to be set
• Press SET/RESET button to set/clear EDID update
• Lights steady ON when EDID stored in Transmitter is updated with EDID of displayconnected to Transmitter
• Not lit when EDID is not being updated
4b USB Link Status :LED
Indicates USB link status
• Blinks when USB link is ready to be set
• Press SET/RESET button to set USB link/unlink
• The short OSD pops up on Receiver’s display to show the setting result of USB link/unlink
• Lights steady ON when USB link is set
• Not lit when USB unlink is set
4c V. Profile LED
Indicates video/graphic mode
• Blinks when Video Profile is ready to be set
• Press SET/RESET button to set Video Profile to video/graphic mode
• The short OSD pops up on Receiver’s display to show the setting result of video/graphic mode
• Lights steady ON when Video Profile is set to video mode
• Not lit when Video Profile is set to graphic mode
5 Video Channel LED
7-segment LED display for Video Channel indication
• Blinks when Video Channel is ready to be set
• Press CH+ or CH- button to change video channel
• Press SET/RESET button to set the video channel change
6 CH+/CH- pushbuttons Press to change video channel
7IR Emitter Connector used for emitting signal of IR extension over IP
8 IR Receiver Connector used for receiving signal of IR extension over IP
9 Audio connector Connector for analog audio input of audio extension over IP (microphone)
10 Audio connector Connector for analog audio output of audio extension over IP (speaker)
11 (2) USB Type A
connectors Links to USB devices for USB extension over IP (USB 2.0)
12 (2) USB Type A
connectors Links to USB keyboard/mouse for USB extension over IP (USB HID)

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CHAPTER 2: OVERVIEW
Figure 2-4 shows the back panel of the receiver. Table 2-4 describes its components.
FIGURE 2-4. RECEIVER BACK PANEL
TABLE 2-4. RECEIVER BACK PANEL COMPONENTS
NUMBER IN
FIGURE 2-4 COMPONENT DESCRIPTION
1 SFP cage Fiberoptic SFP module for link between transmitter and receiver installs here
2 RJ-45 connector Used for LAN Link between transmitter and receiver/Gigabit Ethernet switch
3 HDMI Out connector Connects to HDMI source for the sink signal of HDMI extension over IP
4 5-VDC jack Links to 5-VDC power supply

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CHAPTER 3: CONNECTIONS
3.1 ONE-TO-ONE MAPPING EXTENSION
FIGURE 3-1. ONE-TO-ONE MAPPING EXTENSION
Use this to pair a single set of TX and RX. The default video channel on each unit is 1. This can also be adjusted on multiple RXs to
match a single TX, then press the “SET/RESET” button on the RX unit(s).
Fiber
Copper
OR
NOTE: The TX-RX link can use fiber
OR copper cable, but not both at
the same time.
FIGURE 3-2. ONE-TO-ONE CONNECTION
3.2 MULTICASTING
Multicasting enables you to install a matrix of TX and RX units for use as an extender matrix system over an IP network. A multicasting
application requires a Gigabit/1000-Mbps network switch.
For multicast-matrix installation, the Gigabit Managed Switch or Gigabit Smart Switch must support the IGMP V2 querier function and
Jumbo Frame (at least 8K) is required.
For each Transmitter (TX), set a unique video channel number ranging from 01–99 to avoid channel conflict. Each Receiver’s (RX) video
channel must correspond to the Transmitter’s (TX) video channel whose video content will be displayed on RX’s display. Press the “ SET/
RESET ” button of the RX unit to implement extension linking.
A multicasting application diagram is shown on the next page.

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CHAPTER 3: CONNECTIONS
FIGURE 3-3. TYPICAL MULTICASTING APPLICATION

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CHAPTER 4: NETWORK SETUP AND HARDWARE SWITCHING
1. Power on the Gigabit Switch and enable Jumbo Frame (8k) and IGMP v2.
2. Connect all transmitters and receivers to the Gigabit Switch using CATx cables.
3. Connect all transmitters with video sources, and all receivers with Display/TV using HDMI cables.
4. Connect an IR emitter cable to the transmitter’s or receiver’s IR Emitter Jack, and point the IR emitter to transmitter’s or receiver’s
connected device’s IR receiver window that you want to control.
5. Connect an IR Receiver cable to the transmitter’s or receiver’s IR Receiver Jack, and point the IR receiver to the transmitter’s or
receiver’s connected device’s IR remote.
6. Connect an RS-232 cable to the transmitter and receiver where a RS-232 controller or Display/TV/device can take RS-232
command.
NOTE: If the transmitter’s or receiver’s RS-232 port and the device’s RS-232 port are different genders, use a gender changer.
7. Plug-in a DC power adapter to all transmitters and receivers. The units power on.
8. Power on all Video Sources and start playing video.
9. Power on all Displays/TVs and select HDMI input. All displays/TVs show video depending on the video channel selected.
10. To assign different video channels (sources), use an IR Receiver cable or the 99-channel IR remote controller on the receiver side
to switch the source channel, or change the receiver’s video channel by using pushbuttons on the receiver.
11. Select the video channel by using pushbuttons (CH+/CH-) on every transmitter/receiver based on the link mapping, and set it up
by pressing the “Set/Reset” button. The 7-segment LED display (Video Channel) will stop blinking when the setting is completed.
12. To use the 99-channel IR remote controller, follow steps A through C below.
A. Press “CH+” or “CH-“ to scroll to the next or previous available video channel.
B. Press the number key “1” – “0” and “ENTER” to directly change to the specific video channel.
C. Press “OSD” to show the status information of the transmitter and receiver in the same link on the top left corner of the display
connected to the receiver. The status information includes:
Transmitter’s IP
Receiver’s IP and MAC address
Firmware version of this receiver
Device mode setting of this receiver (Extender or Matrix)
Current receiving video channel
Current video resolution
FIGURE 4-1. REMOTE CONTROL

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CHAPTER 5: HARDWARE OPERATION
5.1 EDID UPDATE BY BUTTONS
The MediaCento IPX 4K features EDID Management. In each video link of a transmitter unit (TX) and a receiver unit (RX), before
outputting the video (and/or audio) data, the source device connecting to the TX reads the EDID first to define the specification of
the video data it should support to output. The EDID can be the factory default, the display connecting to the TX or the sink device
(e.g. display, amplifier,….etc) connecting to RX, and be set up to one of these three types by pressing the “EDID Update” button
based on the application.
By default, the internal HDMI EDID (stored in the transmitter unit) is used. However, the EDID of the receiver’s HDMI output
connected device such as the display, amplifier,…etc, can be obtained and stored in the transmitter. It can support multi-channel
audio and 3D function from the device connecting to the receiver.
5.1.1 “EDID UPDATE” FOR HDMI SINK DEVICE ON TX OR RX SIDE
1. Press the “Select” button to make “EDID” LED blink in order to select the EDID Update function.
2. Press the “SET/RESET” button to set up the EDID Update function.
3. The “EDID” LED lights steady on when the EDID Update is completed.
4. In Extender device mode for TX/RX link, EDID Update will automatically perform when the video connection is established every
time or when the display connecting to Receiver unit is changed.
5.1.2 “EDID UPDATE” TO BE FACTORY DEFAULT
1. Make sure there is no function setting for “EDID”, “USB”, “V. profile” or “Video Channel” to be selected.
2. Press the button for 6 seconds to Reset to Default.
3. Do the above two steps for the transmitter and receiver of the same link.
5.2 AUDIO OVER IP EXTENSION
1. A computer has a Mic-In jack, as part of the sound card. To access this jack from the Receiver/RX unit, connect the microphone
to the Mic-in jack on the Receiver/RX unit.
2. To get the audio from the microphone into the computer, connect a 3.5-mm-to-3.5-mm stereo cable from the Line out jack on the
Transmitter unit to the Line in jack on the computer.
WARNING: DO NOT connect the cable from the Line out jack on the TX unit to the Mic In jack on the computer. Doing it will result in
audio “clipping” and may cause damage to the sound card.
NOTE: HDMI audio will always be passed through to the HDMI out connector on the Receiver unit. However, if a 3.5mm stereo cable
is connected to the Line in jack on the TX unit, the embedded HDMI audio is switched off. This allows the audio signal from Line in
jack (TX unit) to be received on the Line out jack (Receiver/RX unit).

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When using a microphone, the audio behavior will differ between the device modes of Extender and Matrix,
Matrix Mode: The Mic- in jack is disabled in matrix mode. However, if an audio source is connected to the Line in jack on a
Transmitter/TX unit, the audio signal will be distributed to all Receiver/RX units that are set to the same video channel. Each
Receiver/RX unit will have a separate pair of power speakers connected to the Line out jack.
Extender Mode: In extender mode, separate microphones can be connected to each Receiver (RX) unit. The audio signal coming
from the microphone will be sent to the Transmitter (TX) unit on the same channel as the Receiver (RX) unit.
5.3 VIDEO PROFILE
The MediaCento IPX 4K provides two video profiles: Video mode and Graphic mode.
1. On the transmitter or receiver unit, press the “Select” button to make the “V. Profile” LED blink in order to select the Video Profile
function.
2. Press the “SET/RESET” button to set the Video Profile to Video/Graphic mode.
3. “V. Profile” LED lights steady ON when the Video Profile is set to Video mode.
4. “V. Profile” LED is not lit when the Video Profile is set to Graphic mode.
By default, the units are set in “Video Mode.” If the High-Definition signal is a video source, it will be displayed in optimal quality.
FIGURE 5-1. VIDEO MODE

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If the High-Definition signal is a Graphic Source (e.g. images, pattern generator, etc.), press the Video Mode button on the rear
panel of Receiver (RX) until “Graphic Mode” is displayed in the foreground on the graphic image. Set the MediaCento IPX 4K to
Graphic Mode to maintain the sharpest possible image.
FIGURE 5-2. GRAPHIC MODE
5.4 HOTKEY VIDEO CHANNEL SWITCH ON RX SIDE
In addition to pushbutton, IR remote and Web UI, you can also use a keyboard connected to the receiver unit to switch the video
channel in matrix mode.
Press “Scroll Lock” twice within 1 sec, and then type in the channel number to which you would like to switch the channel. The
channel of RX is switched accordingly. For instance, press “Scroll Lock” twice within 1 sec, and then type in “99”. The channel of RX
is switched to channel 99.
NOTE: The keyboard MUST be connected to RX’s USB port with keyboard/mouse symbol only.
NOTE: K/M over IP function of RX must be enabled.