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21905
User Manual
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Monoprice 21905 User Manual

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MONOPRICE
Blackbird™ 4x4 HDMI® Matrix/Extender with 4 Receivers
P/N 21905
User's Manual
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CONTENTS
Matrix Front Panel .................................................................................................................................................................................. 6
Matrix Rear Panel ..................................................................................................................................................................................... 6
Receivers ......................................................................................................................................................................................................... 7
Remote Control ......................................................................................................................................................................................... 8
Notice for FCC .......................................................................................................................................................................................... 13
Notice for Industry Canada ........................................................................................................................................................... 14
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SAFETY WARNINGS AND GUIDELINES
Please read this entire manual before using this device, paying extra attention to these
safety warnings and guidelines. Please keep this manual in a safe place for future reference.
This device is intended for indoor use only. Do not expose this device to water or moisture of any kind. Do not place drinks or
other containers with moisture on or near the device. If moisture does get in or on
the device, immediately unplug it from the power outlet and allow it to fully dry
before reapplying power.
Do not touch the device, the power cord, or any other connected cables with wet
hands.
Do not expose this device to excessively high temperatures. Do not place it in, on,
or near heat sources, such as a fireplace, stove, radiator, etc. Do not leave it in direct
sunlight.
Ensure that power is turned off and disconnected before making any electrical
connections.
Clean using a soft, dry cloth only. Do not use chemical cleaners, solvents, or
detergents. For stubborn deposits, moisten the cloth with warm water.
This device has no user serviceable parts. Do not attempt to open, service, or
modify this device.
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INTRODUCTION
Thank you for purchasing this Blackbird™ 4x4 HDMI® Matrix/Extender! This matrix/extender
allows you to connect up to four HDMI video source devices and distribute them to four
local HDMI displays and four remote displays at the same time. It can extend 1080p@60Hz
video signals to distances up to 164 feet (50 meters) over a single Cat6 Ethernet cable. It
supports the Power over Cable (PoC) feature, allowing the remote receivers to receive
their power over the Ethernet cable. It can be controlled using the front panel buttons, the
included IR remote control, an internet browser using the TCP/IP control option, or a
computer using the RS232 control option. It supports IR extension so you can control the
source devices from the remote locations.
FEATURES
Distributes any of four HDMI® source devices to any of four pairs of outputs Simultaneously supports local displays and displays connected to remote receivers Supports video resolutions up to 1080p@60Hz Can extend 1080p video signals to distances up to 164 feet (50 meters) over a single
Cat6 Ethernet cable
Supports wide band IR extension for control of source devices from the remote
locations or the remote displays from the source location
Delivers up to 4.95 Mbps bandwidth Includes smart EDID management Fully compliant with the HDMI 1.3, HDCP 1.1, and DVI 1.0 standards Can be controlled using the front panel controls, the included IR remote control, an
internet browser using the TCP/IP control option, or a computer using the RS232
control option
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CUSTOMER SERVICE
The Monoprice Customer Service department is dedicated to ensuring that your ordering,
purchasing, and delivery experience is second to none. If you have any problem with your
order, please give us an opportunity to make it right. You can contact a Monoprice
Customer Service representative through the Live Chat link on our website
www.monoprice.com during normal business hours (Mon-Fri: 5am-7pm PT, Sat-Sun: 9am-
6pm PT) or via email at support@monoprice.com
PACKAGE CONTENTS
Please take an inventory of the package contents to ensure you have all the items listed
below. If anything is missing or damaged, please contact Monoprice Customer Service for a
replacement.
1x Blackbird™ 4x4 HDMI® matrix/extender
4x Receivers
1x AC power adapter (12 VDC, 2.5A)
4x Wideband IR transmitters
5x Wideband IR receivers
2x Mounting brackets
1x RS232 cable
1x IR remote control
1x User's manual
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PRODUCT OVERVIEW
Matrix Front Panel
1. DISPLAY LEDs: A series of four numeric LEDs that indicate which sources are
assigned to each output, plus the IR "eye" for the included IR remote control.
2. CONTROL BUTTONS: Three buttons to control matrix switching. Repeatedly press
the OUT button until the desired output LED is illuminated. Next, repeatedly press
the IN button until the desired input is displayed. Finally, press the ENTER button to
assign the displayed input to the selected output.
Matrix Rear Panel
1. OUTPUTS: Four pairs of HDMI® and RJ45 video outputs. Connect a local display to
the HDMI port using an HDMI Cable or connect a remote receiver using a Cat6
Ethernet cable, or both.
2. INPUT: Four HDMI inputs for connecting video source devices and four 3.5mm IR
outputs for connecting an IR transmitter for remote control of each video source
device.
3. PC CONTROL: An RJ45 Ethernet jack for connecting to an existing Ethernet network
or for direct connection to a PC using an Ethernet cable, plus a DB9 connector for
connecting to a PC's COM port for RS232 control.
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4. IR EXT: 3.5mm jack for connecting one of the included IR receivers in case the front
panel IR "eye" is obstructed.
5. EDID: Four DIP switches for setting the EDID behavior.
6. POWER: DC barrel connector for connecting the included AC power adapter.
7. POWER SWITCH: Toggle switch for turning the matrix on or off.
Receivers
1. IR IN: 3.5mm jack for connecting one off the included IR receivers for controlling the
source devices from the remote location.
2. POWER LED: The LED illuminates when the receiver is receiving power over the
Ethernet cable.
3. CAT: RJ45 jack for connecting the Cat6 Ethernet cable from the matrix/extender.
4. LINK LED: The LED illuminates when the receiver is receiving a stable HDMI® signal
over the connected Ethernet cable.
5. HDMI OUT: HDMI port for connecting a video display.
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Remote Control
1. STANDBY BUTTON: Press the button to put the
matrix/extender into standby mode or to turn it on.
2. SELECTION BUTTONS: Four sets of six buttons for
selecting which inputs are assigned to each of the
four outputs. For direct selection, press the number
corresponding to the desired input in the desired
output section. You can also use the two arrow
buttons to cycle to the next or previous input.
EDID MANAGEMENT
Prior to installing the matrix/extender, you need to set the EDID DIP switches to control
the EDID information that will be sent to your source devices. EDID is an acronym for
Extended Display Identification Data, which is the method by which the display reports its
maximum resolution and audio capabilities to the source device, so that it can output the
proper resolution and audio type. If the source device outputs a resolution too high for the
display, the display will be blank. Similarly, if it tries to output too many audio channels,
you will only hear part of the audio signal.
Normally, the source device is connected directly to the display and this operation takes
place automatically without you even noticing it. However, since this matrix allows
connection of up to eight displays, each of which may have different capabilities, the
sources have no way of knowing which resolution and audio settings to use. The EDID DIP
switches solve this dilemma by providing each source with a fixed capability, so it always
know which resolution and audio types to output.
Perform the following steps to set the EDID switches on the matrix/extender, prior to
installing the system.
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1. Check the user's manuals for each display you will be connecting to the matrix to
Video Resolution
Audio Type
DIP Switches
720p/1080i
2-channel
0 0 0 0
720p/1080i
5.1-channel Dolby/DTS
0 0 0 1
720p/1080i
HD
0 0 1 0
2D 1080p
2-channel
0 0 1 1
2D 1080p
5.1-channel Dolby/DTS
0 1 0 0
2D 1080p
HD
0 1 0 1
3D 1080p
2-channel
0 1 1 0
3D 1080p
5.1-channel Dolby/DTS
0 1 1 1
3D 1080p
HD
1 0 0 0
DVI 1024x768
2-channel
1 0 0 1
DVI 1920x1080
5.1-channel Dolby/DTS
1 0 1 0
determine its maximum video resolution and audio capabilities. Write them down
so you can remember what they are.
2. Once you have determined the capabilities of each display, examine the list and
determine the lowest video resolution and the lowest quality audio type.
For example, say you have the following three displays:
4K television with 5.1-channel audio
1080p television with 2-channel audio
720p/1080i television with 7.1 channel audio
Based on this information, you would need to set the EDID for 720p/1080i video and
2-channel audio.
3. Locate the row on the following table that matches the minimum capabilities of
your displays and set the DIP switches accordingly. Note that the DIP switch down
position is 0 and the up position is 1.
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DVI 1920x1200
HD
1 0 1 1
Copy from HDMI OUTPUT A
1 1 0 0
Copy from HDMI OUTPUT B
1 1 0 1
Copy from HDMI OUTPUT C
1 1 1 0
Copy from HDMI OUTPUT D
1 1 1 1
INSTALLATION
Perform the following steps to install the matrix/extender system.
1. If you have not already done so, set the EDID DIP switches on the rear panel to
match the minimum capabilities of the displays you will be connecting.
2. Ensure that all equipment to be connected is powered off and unplugged from its
power source.
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3. Place the matrix/extender, the receivers, and the video displays in their desired
locations.
4. Using a High Speed HDMI® Cable (not included), plug one end into the HDMI input
on one of your remote displays, then plug the other end into the HDMI OUT port on
the corresponding receiver. Repeat for up to three additional remote displays and
receivers.
5. Using a High Speed HDMI Cable (not included), plug one end into the HDMI input
on one of your local displays, then plug the other end into the desired HDMI
OUTPUT on the matrix/extender. Repeat for up to three additional local displays.
6. Using a High Speed HDMI® Cable (not included), plug one end into one of the HDMI
ports in the INPUT section on the matrix/extender, then plug the other end into the
HDMI output on one of your video source devices. Repeat for up to three additional
source devices.
7. (Optional) If you want to control the source devices from the remote display
locations, plug one of the included IR receivers into the IR IN jack on each receiver,
then position the IR "eye" where it can receive signals from the remote control.
Alternatively, if you want to control the remote displays from the source location,
plug each of the included IR receivers into the IR OUT jacks on the matrix/extender,
then position the IR "eyes" where they can receive signals from the remote controls.
8. (Optional) If you want to control the source devices from the remote display
locations, plug each of the included IR transmitters (aka IR blasters) into the IR OUT
jacks on the matrix/extender, then position the IR emitter where it can transmit IR
signals to the IR "eye" on the corresponding source device. Alternatively, if you want
to control the remote displays from the source location, plug one of the IR
transmitters into the IR IN jack on each receiver, then position the IR emitters where
they can transmit IR signals to the IR "eyes" on the remote displays.
9. (Optional) If you are installing the matrix/extender in location where the IR "eye" on
the front panel would be obstructed, such as inside a closet or cabinet, plug one of
the included IR receivers into the IR EXT jack on the matrix/extender, then position
the IR "eye" where it can receive IR signals from the included remote control.
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10. (Optional) If you want to control the matrix/extender using the web browser on
your computer, plug one end of an Ethernet cable (not included) into the TCP/IP
RJ45 jack on the matrix/extender, then plug the other end into your router or
network switch. Alternatively, you can connect directly to the Ethernet port on your
PC, but you will need to configure your PC's network settings to communicate with
the matrix/extender. Alternatively, if you want to control the matrix/extender using
a third party RS232 software on your computer, plug one end of a DB9 serial cable
into the RS232 port on the matrix/extender, then plug the other end into an
available COM port on your PC.
11. Using a Cat6 Ethernet cable (not included), plug one end into the CAT RJ45 jack on
one of the receivers, then plug the other end into one of the UTP OUTPUTS on the
matrix/extender. Repeat for up to three additional remote receivers.
12. Ensure that the POWER SWITCH on the matrix/extender is in the OFF position (0).
13. Plug the DC barrel connector on the included AC power adapter into the POWER
connector on the matrix/extender, then plug the other end into a nearby AC power
outlet.
14. Plug in and power on the video source devices.
15. Flip the POWER switch on the matrix/extender to the ON position (I).
16. Plug in and power on each display.
17. Start video playback on each source device, then verify that each video source can
be viewed on each display.
18. If you are using the IR extension feature, ensure that you can control the desired
equipment using their native remote controls.
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SPECIFICATIONS
Model
21905
Video Inputs
4x HDMI®
Video Output
4x HDMI, 4x Ethernet
Maximum Video Resolution
1080p@60Hz
Maximum Video Bandwidth
4.95 Mbps
Input Power
12 VDC, 2.5A
AC Adapter Input Power
100 ~ 240 VAC, 50/60 Hz
Maximum Power Consumption
23 watts
Operating Temperature
+32 ~ +104°F (0 ~ +40°C)
Storage Temperature
-4 ~ +140°F (-20 ~ +60°C)
Operating Humidity
20 ~ 90% RH, non-condensing
Dimensions
17.3" x 7.9" x 1.8" (440 x 200 x 45 mm)
Weight
4.0 lbs. (1820g)
REGULATORY COMPLIANCE
Notice for FCC
This device complies with Part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired
operation.
Modifying the equipment without Monoprice’s authorization may result in the equipment
no longer complying with FCC requirements for Class B digital devices. In that event, your
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right to use the equipment may be limited by FCC regulations, and you may be required to
correct any interference to radio or television communications at your own expense.
This equipment has been tested and found 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 in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Notice for Industry Canada
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
Blackbird™ is a trademark of Monoprice Inc.
HDMI®, the HDMI Logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.
Blu-ray Disc™, Blu-ray™, and the logos are trademarks of the Blu-ray Disc Association.
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