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ADX-1852 HD/SD 4 AES Disembedder w. Analog Audio Monitor 

ADX-1842 HD/SD 4 AES Disembedder  

Guide to Installation and Operation

 

 

 

ADX-1842/1852 

Page 9 of 10 

 

Metadata 

 
The 

Metadata

 tab offers setting options for the output LTC 

signal for the embedded time code, RS-422 signal, GP1 
and GP2. 
 

 

 
The 

LTC Output

 window allows the user to select the 

source of the time code appearing at the LTC output (ATC, 
DVITC). For an HD-SDI input, using the 

HD ATC Select 

drop down menu, select the ATC signal to be disembedded 
(first ATC or second ATC). 
 
For an SD-SDI input, using the 

SD DVITC line

 drop down 

menu, select the desired line to be disembedded. If the 
input DVITC is in a 525 format, the available selections will 
be auto or lines number 10 to 20. If the input DVITC is in 
625 format, the Auto option remains, but the line numbers 
vary from 7 to 22. 
 
The delay drop down menu allows the user to add delay to 
the extracted time code while translated to LTC. The delay 
is selectable from none to 3 frames. 
 

 

 
The 

Status 

tab shows the detection of input embedded 

time code, RS-422, GPI 1 and GPI 2 signals. When 
present, the status icons turn to green. 
 

Monitoring Output 

 
The 

Monitoring Output

 tab is only available on the ADX-

1852. It allows the conversion of AES digital audio to 
stereo analog audio signals. 

 

 
Using the 

Audio Select

 drop down menu, select the AES 

output source for the stereo analog audio conversion. 
 
The 

OdBFS Level

 drop down menu allows the user to 

adjust the output level in 1 dB steps for an output level 
range of +12 dBU to +24 dBU at full scale amplitude. 
 
The 

VBit

 drop down menu allows the user to block 

monitoring of invalid AES outputs according to the validity 
(V) Bit status. The V-Bit can have two values: 

ƒ

 

‘0’, AES output is valid and can be converted into an 
analog audio signal.‘1’, AES output is invalid and 
cannot be converted into an analog audio signal. 

By selecting 

mute

 in the 

VBit

 drop down menu, the AES 

outputs flagged as invalid by the V-Bit will not be 
converted, while the data flagged as valid will pass through 
and be converted. By selecting 

pass

, the user ignores the 

V-Bit status and forces the conversion. 
 

Test 

 
The 

Test

 menu allows the user to enable test signals on 

the AES and LTC outputs for troubleshooting purposes. 
 

 

 

Factory 

 
Clicking the 

Load Factory

 button will restore all of the 

adjustable parameters to a factory-preset state. Those 
preset settings are indicated by an underline in the 

ADX-

1842 and ADX-1852 menus

 on pages 4 and 5 of this 

manual. 

Enables a test tone (1 KHz, R-steady, 
L-pulsed, at-18 dBFS) in each of the 
four AES outputs individually 
 
 
 
 
 
 
 
 
Enables an output LTC test loop (10 
second loop starting at 23:59:00:00)  

Содержание ADX-1842

Страница 1: ...s either 110 Ω balanced or 75 Ω unbalanced depending on rear panel in use Selectable audio delay of up to 3 frames in frame steps 24 bit digital audio disembedding Audio silence output on loss of video input Left Right channels swappable for each AES output Selectable routing of audio groups to AES outputs Co phased audio outputs Dolby E compatible Monitor selector for Densité frame monitoring swi...

Страница 2: ...oop through Video Signal HD SD SDI SMPTE 292M SMPTE 259M Return Loss 15 dB up to 1 5 GHz 270MHz dB Wideband Jitter 0 2 UI p p PROCESSING PERFORMANCE Signal Path 10 bit video 24 bit audio Audio Processing Delay 875 µs combined embedding and extraction Audio Delay Up to 3 video frames 1 2 frame steps ATC DVITC Delay None 1 2 or 3 frames before translation to LTC RS 422 Processing Delay 500 µs max co...

Страница 3: ...in the frame whose SELECT button has been pushed Status Monitor LED The status monitor LED is located on the front card edge of the ADX 1842 and the ADX 1852 modules and is visible through the front access door of the DENSITÉ frame This multi color LED indicates module status by color and by flashing steady illumination according to the following chart which also indicates fault reporting for this...

Страница 4: ...N I 2 CHANNEL 1 CHANNEL P S STEREO CONSUMER PROFESSIONAL GROUP 1 GROUP 2 GROUP 3 GROUP 4 x OFF ON OFF ON x x x x NONE 1234 NONE PRESENT NONE PRESENT AUTO 7 8 22 AUTO 10 11 20 Same as AES OUT 1 MODE EMPHASIS LOAD SAVE AES OUT 2 Same as AES OUT 1 Same as AES OUT 1 AES OUT 3 AES OUT 4 Same as AES OUT 1 1 2 3 4 5 1 2 3 4 5 USER PRESET AES OUT 2 AES OUT 3 AES OUT 4 AES OUTPUT AES OUT 1 2 LTC OUTPUT FRO...

Страница 5: ...OUT 3 OFF TONE OFF TONE OFF TONE GREEN YELLOW RED FLASH RED MUTE PASS AES OUT 1 AES OUT 2 AES OUT 3 AES OUT 4 ALARM REPORT ALARM REPORT OFF TONE OFF LOOP x x x x x x x x ALARM REPORT ALARM LEVEL ALARM LEVEL ALARM LEVEL NO AES 1 2 NO AES 3 4 FACTORY DEFAULT CONFIG ALARM NO SIGNAL VERSION ADX 18x2 XXX RESTORE TEST MODE V BIT TEST AES OUT 1 This option is accessible on ADX 1852 only LEVEL 0 dBFS MONI...

Страница 6: ...code is translated to LTC The delay is selectable between NONE and a number of video frames 1 to 3 MONITOR OUT menu ADX 1852 only SOURCE Selects AES OUT 1 2 3 or 4 for stereo analog audio conversion LEVEL 0dBFS the output level is adjustable in 1 dB steps for an output level of 12 dBU to 24 dBU at full scale amplitude VBIT Selects the action if the AES channel status V Bit is set Select MUTE to mu...

Страница 7: ... factory preset settings A complete description of the Factory tab begins on page 9 Info shows information on the ADX 1842 or the ADX 1852 and allows entry of some data A complete description of the Info tab begins on page 10 User Presets Allows the creation of user profiles for a personalized configuration of the ADX 1842 or ADX 1852 A complete description of the User Presets begins on page 10 Th...

Страница 8: ...nels The Delay tab allows the user to set the delay of the AES audio as it passes through the disembedder The delay is selectable between none and a number of video frames 0 to 3 frames in 0 5 frame steps The Disembedding tab allows the user to select which embedded audio group will appear at the indicated AES outputs The Status tab monitors some of the information carried in the AES outputs chann...

Страница 9: ...onversion of AES digital audio to stereo analog audio signals Using the Audio Select drop down menu select the AES output source for the stereo analog audio conversion The OdBFS Level drop down menu allows the user to adjust the output level in 1 dB steps for an output level range of 12 dBU to 24 dBU at full scale amplitude The VBit drop down menu allows the user to block monitoring of invalid AES...

Страница 10: ... contents of the selected user preset into the ADX 1842 or the ADX 1852 All parameter settings and values will be replaced by the contents of the selected user preset Click Save to store the current parameter settings and values from the ADX 1842 or the ADX 1852 into the selected user preset The existing contents of the preset will be overwritten COMPLIANCE Radio Frequency Interference and Immunit...

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