PureLink UHD-280 User manual

UHD-280 Owner’s Manual
2 x 8 4K HDMI Distribution Amplifier
PureLinkTM
535 East Crescent Avenue
Ramsey, NJ 07446, USA
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
www.purelinkav.com
For technical support, contact:
[email protected]

Table of Contents
1-1 Package Contents p.3
1-2 General Specification p.4
1-3 Operation and Reliability Specifications p.6
1-4 Main Features p.7
1-5 Operation Guide p.8
1-6 Mechanical Specification p.12
1-8 Warranty Information p.14
1-9 Troubleshooting p.15

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1-1 Package Contents
Please make sure all of the following items are included in the package:
1) UHD-280 Unit
2) DC 12V 3A Power supply adapter
3) Owner’s Manual
4) Remote controller
5) IR extension cable

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1-2 General Specification
Welcome!
Congratulations on your purchase of the PureLink UHD-280 2 x 8 4K HDMI Distribution
Amplifier. This manual contains information that will assist you in installing and
operating the product.
PureLink UHD-280 2x8 4K HDMI distribution amplifier is designed to distribute two
HDMI/DVI digital signals into multiple monitors without any degradation of original
signal quality or distortion of the image. In addition, a dedicated IC chipset makes UHD-
280 capable of amplifying and distributing highest quality of video signal and UHD digital
contents.
UHD-280 is compact, durable and low power consumption design makes it ideal solution
for connection for high definition video and audio signal of digital display device, such as
LCD, Plasma, LED, Projector, and etc.
In addition, UHD-280 offers quick and easy plug and play, installation for commercial or
residential system.
Item
Description
Model
UHD-280
Input type
HDMI Single Link , 2port
Output type
HDMI Single Link , 8port
Graphic Resolution
VGA / SVGA / XGA / UXGA / WUXGA
480i/p , 720i/p , 1080i/p@60hz, 4k2k@30hz, 4k2k@60Hz (YCbCr 4:2:0)
Connector type
DC Power Jack
HDMI 19 Pin Female
Serial Female
USB Female
IR extension port
Supported format
DDWG DVI 1.0
HDMI 1.4
HDCP Compliant
Yes

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Power
DC +12V , 3A
Dimension (WxDxH)
8.39”x 8.39”x 2.36”(213 x 213 x 60 mm)
Weight
2 lbs. (0.75 kg)
Frequency bandwidth: 10.2 Gbps
Supporting Graphic Resolution: Supports all standard display resolutions up to UHD
(4K2K @ 30Hz), 480p, 576i, 720p, 1080i, 1080p@60Hz
Inputs: Dual HDMI Inputs
Output: Eight HDMI Outputs
Power supply: DC 12V, 3A Adapter included
Connector Pin Assignment
Part No.
Pin No.
Description
Remarks
HDMI 19pin
1
TMDS DATA 2P
2
TMDS DATA 2 Shield
3
TMDS DATA 2M
4
TMDS DATA 1P
5
TMDS DATA 1 Shield
6
TMDS DATA 1M
7
TMDS DATA 0P
8
TMDS DATA 0 Shield
9
TMDS DATA 0M
10
TMDS Clock P
11
TMDS Clock Shield
12
TMDS Clock M
13
CEC
14
RESERVED
15
DDC Clock
16
DDC DATA
17
GND
18
+5v
19
Hot Plug Detect

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1-3 Operation and Reliability Specification
1. Operating Environment
Temperature : 32F ~ 140F (0℃~ 60℃)
Humidity : 10% ~ 80%
Altitude : 3,000m Max.
2. Transit Environment
Temperature : -13F ~ 140F (-25℃~ 60℃)
Humidity : 5% ~ 95%
Altitude : 15,000m Max.
3. Storage Environment
Temperature : -4F ~ -185F (-20℃~ 85℃)
Humidity : 5% ~ 95%
Altitude : 3,000m Max.
4. Reliability
MTBF: 90% at over 50,000 hours aging test
In compliance with LCD Monitor reliability test standard

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1-4 Main Features
1. High Quality Picture - No Signal Loss and Digital Noise Free
Our Distribution Amplifiers are built to deliver the highest quality picture preserving
the native resolutions of the video sources without any signal loss. At the same time,
the digital noises that may affect the picture quality will be eliminated. Due to the
nature of the digital signals and passing through multiple stages of connection when
using distribution amplifiers, it is important to eliminate the digital noises and boost
the signal strength to preserve/enhance the video signal quality.
2. Signal Amplification for signal reliability and long length signal transmission
Our 12V power adapter supplies adequate power to amplify the video signals from
the video source. This is necessary as the overall length from the video source to the
displays is longer when using the distribution amplifiers (distance from the video
source to the distribution amplifier + distance from the distribution amplifier to the
display). In most cases, the overall distance that the HDMI signal will need to travel is
over 10ft. Due to the nature of HDMI signals, amplification is necessary to warrant
the video quality and reliability. (Without amplification, there may be occasional
blackouts or blinking effects) With this amplification feature, your video display can
be extended up to 2300ft using our fiber optical HDMI cables.
3. 4K/UHD support
UHD-280 is consisting of HDMI input and output ports, and it is conforms to HDMI 1.4
standard.
Support Full 3D and 4K2K@60Hz (YCbCr 4:2:0) video, and 12 bit deep color & Full HD
4. HDCP (High-bandwidth Digital Content Protection) Compliant
Our HDMI distribution amplifiers are fully HDCP compliant. Many video sources such
as DVD players and Satellite/Cable Receivers are HDCP encrypted. For these video
sources to be displayed correctly, HDCP compliant devices (e.g., TV, HDMI Switch,
distribution amplifier) are required.
5. 3 ways to control
- Front panel buttons
- RS232C
- IR
6. EDID management (EDID library & emulation)
- Easy and fail safe EDID management

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1-5 Operation Guide
Hardware Connection
1. Turn off the whole system before connecting.
2. Connect your video source’s HDMI output port to the UHD-280’s HDMI input port
using standard HDMI cables (not included).
3. Connect your HDMI display’s HDMI input port to UHD-280’s HDMI output port.
4. Plug the 12V power supply to UHD-280
5. Plug the 12V wall mount power supply into the wall outlet.
6. Turn on UHD-280
7. Turn on your monitor
8. Turn on your video source
Input Switching
Two active sources can be connected to the UHD-280 at the same time. All outputs
image will be mirrored output of one of the input at a time. There are three ways to
switch inputs.
1. Front panel buttons
Button 1 to switch to input 1
Button 2 to switch to input 2
2. IR remote
Input 1 button for input 1
Input 2 button for input 2
3. RS232 command
Description
Command
Input 1 select
SC0\x0d\x0a
Input 2 select
SC1\x0d\x0a
* RS232 communication setting:
Baud rate –57600
Data bits –8
Parity –none
Stop bits –1
Null modem (Crossed) RS232 cable

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EDID Management
PureLink UHD-280 provides Auto EDID management system; easy and fail safe way to
handle EDID, via pre-loaded factory default 1080p 2ch and EDID emulation.
What's EDID?
Extended Display Identification Data (EDID) is an information set that digital display
provides to describe its capabilities to a Video source. Video source will know what
kinds of displays are connected and it will determine which resolution to Output
according to the EDID information received from the display.
The EDID normally includes manufacturer name and serial number, sets of capable
resolution including native resolution, supported timing, pixel mapping data (for digital
displays only) and etc.
In a digital connectivity environment; in order to support the maximum resolution of
connected monitor, EDID handshake is a critical because improper EDID handshake
between sources to the display will result in no image on the display.
EDID handshake may sound simple; however, with multiple peripheral devices within
the chain, display's EDID information easily get lost or blocked while it is traveling to the
source device.
UHD-280 provides Auto EDID management system to meet today’s sophisticated digital
connectivity integration environment. EDID can be set via front panel buttons, IR
remote, or RS232 commands.
Function #
Description
F1
Analyze EDIDs of connected displays and create an intersection EDID
F2
Same as F1 with maximum capable audio EDID instead of intersection
F3
Emulate EDID from output #1 connected display
F4
Analyze EDIDs of connected displays and create and union EDID

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F5
Factory EDID library 720p@50/60Hz, 2 Ch PCM audio
F6
Factory EDID library 1080i@50/60Hz, 2 Ch PCM audio
F7
Factory EDID library 1080p@50/60Hz, 2 Ch PCM audio
F8
Factory EDID library 4K@30Hz, 2 Ch PCM audio
How to set EDID? There are three ways.
1. Front panel buttons
For F1 –F4,
- Press and hold F button for 3 seconds
- FE2 and FE3 will blink and it is ready for EDID setting
- Press 1 –4 for F1 –F4 EDID settings
- Blue LED will turn on selected EDID setting (FE1 –F1, FE2 –F2, FE3 –F3, FE4 –F4)
- EDID setting is completed
For F-5 –F8,
- Double click F button
- FE1 and FE4 will blink and it is ready for EDID setting
- Press 1 –4 for F5 –F8 EDID settings
- Blue LED will blink on selected EDID setting (FE1 –F5, FE2 –F6, FE3 –F7, FE4 –F8)
- EDID setting is completed
2. IR remote
Press F button and press F1 –F8 buttons for F1 –F8 EDID settings
3. RS232 commands
Function #
Command
F1
SF0\x0d\x0a
F2
SF1\x0d\x0a
F3
SF2\x0d\x0a
F4
SF3\x0d\x0a
F5
SF4\x0d\x0a
F6
SF5\x0d\x0a
F7
SF6\x0d\x0a
F8
SF7\x0d\x0a
* RS232 communication setting:
Baud rate –57600
Data bits –8
Parity –none
Stop bits –1
Flow control –none
Null modem (Crossed) RS232 cable

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Command Line Operation
This section is designed for programmers who wish to create their own control
programs using the command code. UHD-280 provides a simple character stream
control used by external control devices attached to a PureLink device. Command codes
are used primarily for control, during system installation, setup, and for diagnostic
purposes.
Command code is a set of alphanumeric characters that combine to form control
commands. Command code strings are entered into a terminal emulation program (such
as windows HyperTerminal) running on an external control device. The control device
(PC, third-party controller) sends the commands to the system. Control devices must be
able to send and receive ASCII or HEXA code via an RS-232.
* RS232 communication setting:
Baud rate –57600
Data bits –8
Parity –none
Stop bits –1
Flow control –none
Null modem (Crossed) RS232 cable
Protocol
Description
Command
Feedback
Power Off
SPO\x0d\x0a
Power On
SP1\x0d\x0a
Power Status
SP2\x0d\x0a
Input 1 select
SC0\x0d\x0a
Input 2 select
SC1\x0d\x0a
Input selection status
SC2\x0d\x0a
EDID F1
SF0\x0d\x0a
EDID F2
SF1\x0d\x0a
EDID F3
SF2\x0d\x0a
EDID F4
SF3\x0d\x0a
EDID F5
SF4\x0d\x0a
EDID F6
SF5\x0d\x0a
EDID F7
SF6\x0d\x0a
EDID F8
SF7\x0d\x0a
EDID setting status
SF8\x0d\x0a
Temperature check
ST0\x0d\x0a
Firmware version check
S?V\x0d\x0a

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1-6 UHD-280 Mechanical Specification
UHD-280 Dimension: 8,39” x 8.39” x 2.36”(213 x 213 x 60 mm), 2 lbs (0.75 kg)
<Angle View>
<Front View>
- Power Status Indicator
F –Function button
1 –Input 1 select button & used for EDID function
2 –Input 2 selection button & used for EDID function
3 –For EDID function
4 –for EDID function
SYNC –Input and output signal sync status LED
HDCP –HDCP status LED
Input 1 & Input 2 –Input selection status LED
FE1, FE2, FE3, and FE4 –Function status LED

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<Rear View>
HDMI In –HDMI 1 - 2 inputs
HDMI Out –HDMI 1 –8 outputs
RS232 –for RS232 control
USB –for firmware update
EXT.IR –IR extension port

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1-8 Warranty
3 (three) Year Warranty
Dtrovision warrants this PureLink UHD-280 to be free from defects in workmanship and
materials, under normal use and service, for a period of two (3) year from the date of
purchase from Dtrovision or its authorized resellers.
If a product does not work as warranted during the applicable warranty period,
Dtrovision shall, at its option and expense, repair the defective product or part, deliver
to customer an equivalent product or part to replace the defective item, or refund to
customer the purchase price paid for the defective product.
All products that are replaced will become the property of Dtrovision.
Replacement products may be new or reconditioned.
Any replaced or repaired product or part has a ninety (90) day warranty or the reminder
of the initial warranty period, whichever is longer.
Dtrovision shall not be responsible for any software, firmware, information, or memory
data of customer contained in, stored on, or integrated with any products returned to
Dtrovision for repair under warranty or not.
Warranty Limitation and Exclusion
Dtrovision shall have no further obligation under the foregoing limited warranty if the
product has been damaged due to abuse, misuse, neglect, accident, unusual physical or
electrical stress, unauthorized modifications, tampering, alterations, or service other
than by Dtrovision or its authorized agents, causes other than from ordinary use or
failure to properly use the Product in the application for which said Product is intended.

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1-9 Troubleshooting
Problem
Solution
Distribution Amplifier
does not operate
Make sure the 12V power is plugged in the back of the unit.
Check to see if the power LED light is on.
No picture(or signal)
Or Poor picture
1. In case your video source is HDCP enabled, make sure
your video display (HDTV) is HDCP compliant.
2. If you are using copper based HDMI cable, overall length
of the cables (length of the cable from video source to
switch and length of the cable from switch to display)
should not exceed 20ft. Exceeding 20ft. with copper based
cables will result in no or poor picture quality. To extend
beyond 20ft, please use fiber optical HDMI extension cables
such as PureLink EZ series.
3. Use high quality HDMI cables.
4. If you are using computers, try other refresh rate
settings. Most HDTV’s have refresh rate of 48Hz and
computer’s video cards are usually set at higher refresh
rate. Try lower refresh rates.
5. Make sure all HDMI connectors are tightly secured to all
HDMI ports. Loosened screws on the HDMI connectors will
result in no or poor picture.
6. Turn off all equipment (video source, switch and HDTV)
and restart all equipment.
Incorrectly sized picture
/resolution or No picture
Please remember that your video source will only transmit
one resolution setting. To connect varying resolution
displays (1920x1200 resolution display and 1024 x 768
resolution display) the resolution setting of your video
source must be set to the lowest resolution setting (1024 x
768).

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1.1 FCC/CE Statement
This device complies with part 15 of FCC Rules and EN 55022/55024/61000-3 for CE
certification. Operation is subject to the following two conditions: (1) this device may
not cause harmful interference, and (2) this device must not accept any interference
received, including interference that may cause undesired operation. This equipment
has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 and 2 of FCC Rules and EN 55022/55024/61000-3 for CE
certification. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and. if not installed
and used in accordance with the instruction guide, 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:
Re-orient or relocate the receiving antenna.
Increase the separation between the equipment and the receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult a service representative for help.
Properly shielded and grounded cables and connectors must be used in order to comply
with FCC/CE emission limits. Changes or modifications not expressly approved by the
party responsible for compliance could void the user s authority to operate the
equipment.
1.2 UL Statement
This device has completed a UL Commercial Inspection and Testing Services for the
multimode HDMI cable complied with VW-1 under UL 758. it is validated by the UL file
number SV2038 and project number 04CA05353.