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yellobrik Quick
Reference
®
LYNXTechnik AG
CHD 1812-1
HDMI to SDI Converter + Frame Sync.
Audio Inputs
USB Connection
(for yelloGUI control & updates)
Power In (12v)
SDI Fiber Output
(Option)
SDI Outputs (2)
HDMI Present
Audio Present
Warning
Class 1 Laser Product
REF Present HDMI Input
Audio Settings
REF (sync) Input
NOTE: This module will not convert HDMI
content which has embedded HDCP
copy protection.
Power / Status LED
Module LEDs
The module has several LEDs included to indicate status.
Function is described below:
HDMI and REF Present LEDs
= Valid signal connected / converted
= (out) Signal not valid or missing (or if HDMI has HDCP protection)
Audio Present LED
= Both external audio input channels are present
= Only one of the audio input channels is present
= (out) no audio present
Power / Status LED
= Power OK and no internal programmed settings are present
= Power OK and some programmed settings are active*
= One or more of module switch settings have been overwritten
with the yelloGUI application. (Operation of any local switch will
change LED status back to Yellow or Green.           
                                
= (out) Power not present
* Some additional internal settings have been made using the yelloGUI and the
LED indicates this by turning yellow. The module can be reset to factory default
using the yelloGUI application, or by using the internal reset switch on the side of
the module, which can be accessed though a hole with a paperclip (or similar)
USB Port / Firmware Updates / yelloGUI
The USB interface on the module is used for rmware updates and for
control of the module using the yelloGUI software application.
To update a yellobrik, power it and connect it to the PC or Mac running
the yelloGUI software with the provided USB cable. The yelloGUI
software will indicate if a new rmware is available for the connected
module and will guide you through the update process.
Firmware updates are always free of charge.
For more information and to download the yelloGUI application please
goto: https://www.lynx-technik.com/support/download-area/yellogui-software/
HDMI is connected but no SDI output ? - Common Causes
When two HDMI devices are connected together the EDID
communication protocol automatically determines the highest
resolution both devices support and congures the HDMI link to that
resolution. As the CHD 1812-1 supports video formats up to 1080p/60Hz
the SDI output will typically default to 1080p/60 (3Gbit/s SDI) which if
used in a standard 1.5GHz or 270Mbit SDI environment will not display
an image. If 1.5Gbit or 270Mbit SDI output is needed, then the HDMI
source device should be manually set to output the desired video
resolution. Alternatively, it is possible to use the yelloGUI application to
force the CHD 1812-1 into the desired video format.           
                           
                    
The HDMI content may have HDCP copy protection, in which case the
HDMI present LED will be OUT and the module will block the conversion
and provide a black SDI output.
Note:                                              
                                                 
                                            
                               
Still Having Problems?
Please visit the support center on our website and browse or search the
knowledge base, or open a support ticket with your specic questions
                     
Power Lead Strain Relief
The module has a small hole in
the case located above the
power connection. To prevent
the power lead being
accidentally pulled out, use the
supplied tie-wrap and secure
the lead as shown opposite.
Reset (hole)
yellobrik
®
LYNXTechnik AG www.lynx-technik.com
We are constantly adding additional yellobrik modules.
Please visit our website for the latest product updates.
www.lynx-technik.com
Connections and Adjustments
All connections and adjustments are clearly indicated on the module
and self explanatory. Settings can be changed with the module
powered on or o. The ber SDI output is optional and can be added at
any time if needed using the socket provided (plug in SFP module).
Basic Operation
The CHD 1812-1 will auto-detect the connected HDMI input and the
HDMI Present LED will illuminate when a valid signal is detected. The
HDMI is converted to an SDI signal in its native resolution (no scaling).
Two identical electrical SDI outputs (not dual link) are provided as well as
an optional ber SDI output. Any audio present on the HDMI signal will
be automatically embedded into the SDI outputs.
Frame Synchronizer
The CHD 1812-1 includes an internal frame synchronizer which can
syncronize the converted HDMI signal to studio reference. (With no
reference connected the synchronizer is bypassed). When a valid
reference signal is detected the REF Present LED will illuminate and both
the video and audio signals are synchronized to the connected reference
signal. Frame Sync timing is adjustable using the yelloGUI software
application. (Only available when reference is connected)
The frame synchronizer is fully cross lock compatible meaning it can
cross lock between dierent standards. If the frequency of the reference
and HDMI inputs are dierent the module will perform a simple frame
rate conversion by dropping or adding frames.
Audio
The CHD 1812-1 has two external analog audio inputs (stereo) which can
be embedded into a selected AES channel on the SDI outputs. When
audio is present the Audio Present LED is illuminated. The analog inputs
can be balanced (professional) or unbalanced (line, or consumer). Use
the “Audio Levels” rotary switch to select the correct audio level for the
audio input. Full scale level for balanced and Line level for consumer
inputs. 1/4 inch jack plug to RCA plug adapters are provided for line level
consumer audio inputs.
Audio Embedding
Up to 8 channels of audio present on the HDMI input are automatically
embedded into the SDI outputs (AES channels 1, 2, 3, 4). If an external
audio input is connected then the audio can be inserted into any of the
8 available AES channels of the SDI outputs. The channel is selected
using the “Audio Select” rotary switch.
Note: One AES channel = two channels of audio (left and right)
The HDMI audio is not modied or decoded. If encoded audio is present
such as Dolby Digital then this encoded stream will be embedded
(transparently) into the SDI output. The module automatically disables
the sample rate converters if encoded audio is detected. However, if the
Frame Synchronizer is active (Reference connected) then encoded audio
streams may be repeatably disturbed or corrupted. (Note: PCM audio
content will always be free from disturbances).
NOTE: External audio will overwrite any audio present on the HDMI
input if AES channel 1, 2, 3, 4 is selected.
Fiber Output (Optional)
A SDI ber output is provided via a removable SFP ber stick. This can be
a standard SDI Transmitter (1310nm) or if needed CWDM versions are
also available (18 wavelength choices). Please contact LYNX Technik for
more details on the ber options compatible with this module.
HDCP Copy Protection
The CHD 1812-1 WILL NOT convert any HDCP encrypted content. If a
HDMI source is connected and the “HDMI present” is then the OUT
HDMI content is most likely protected with HDCP.
yelloGUI Software Tool
The CHD 1812-1 is fully compatible with the yelloGUI software
application. This provides access to a variety of additional internal
settings and features. (Including setting 3D conversion mode, setting
frame sync delay and audio conguration)
HDMI Input 3D compatible input using type A connector
For a detailed list of supported formats please refer to the article in our knowledge base
( www.lynx-technik.com > support > tech.support )
Up to 8 channels embedded audio in HDMI is passed transparently or
replaced with external analog audio input
Reference
Input
SDTV: Analog 525 or 625 bi-level sync, black burst or colorbars
HDTV: All tri-level sync standards (exceptions 1080p 50/59.94/60Hz)
Cross lock compatible. SMPTE 274M, SMPTE 296M
SMPTE 274M, SMPTE 296M - 75 Ohm BNC connector
Frame
Synchronizer
Functional if valid reference is detected, otherwise operates in free run
(asynchronous) mode. External audio and HDMI input are frequency
locked to external reference, fully cross lock compatible across standards.
SDI Outputs
Audio Inputs Left and right analog audio using 1/4 inch jack plugs
10k Ohm dierential balanced input mode with 24,22,20,18,15,12 dBu
full scale (selectable)
Unbalanced mode with (line level) at -10 dBV
(1/4 inch Jack Plug to RCA connection adapters supplied)
Selectable AES channel for audio embedding (1 through 8)
(Overwrites any HDMI embedded audio present in selected channel)
Frequency response: <+/- 0.2dB 20Hz to 20KHz
48KHz A/D sample rate (free run or frequency locked to ref input)
Power +12VDC @ 4.7W nominal - ( supports 10 - 14VDC input range )
2 x SDI video, 75 Ohm BNC. (both have the same signal - NOT dual link)
SMPTE 424M, SMPTE 292M, SMPTE 259M
3G Level A & B-DL & B-DS according to SMPTE ST 425-1 and ST 425-2 (3D) with
image formats 1280 x 720 and 1920 x 1080
For a detailed list of supported formats please refer to the article in our knowledge base
( www.lynx-technik.com > support > tech.support )
Electrical Return Loss: >15dB from 5MHz to 1.5GHz, >10dB from 1.5GHz to 3GHz

Produktspecifikationer

Varumärke: Lynx Technik
Kategori: Inte kategoriserad
Modell: Yellowbrik CHD 1812-1

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