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Description
The ADX-1842 is a high-quality disembedder designed to
extract up to four AES 24-bit 48kHz digital audio signals
from a single HD/SD serial digital video signal. A unique
feature is its ability to extract time code, a serial RS-422
data signal and two GPI status signals from the video
signal. The module supports signal presence detection,
remote reporting, and local or remote configuration and
control, and features a built-in audio tone test signal.
The ADX-1852 has all of the features of the ADX-1842,
excluding the HD/SD-SDI loop through outputs, plus it
provides an analog audio monitor output for one selectable
stereo pair of signals.
The ADX-1842 and ADX-1852 are designed for use in the
DENSITÉ frame, with the appropriate double-width rear
panel.
Video - Features
Serial HD/SD-SDI input with automatic equalization for
up to 110m/250m of cable
Automatic detection of video input format
Two pass-through HD/SD-SDI video outputs (ADX-
1842 only)
Audio - Features
AES outputs: either 110 Ω balanced or 75 Ω
unbalanced, depending on rear panel in use
FUNCTIONAL BLOCK DIAGRAM
ADX-1852 HD/SD 4 AES Disembedder w. Analog Audio Monitor
ADX-1842/1852
Disembedding Other Signals - Features
SPECIFICATIONS
VIDEO INPUT
Video Signal:
Cable Length:
Return Loss:
AUDIO AES-3id OUTPUT
Signal:
Level:
Impedance:
AUDIO AES3 OUTPUT
Signal:
Level:
ADX-1842/1852
ADX-1842 HD/SD 4 AES Disembedder
Guide to Installation and Operation
Selectable audio delay of up to 3 frames in ½ 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 switch
bridge (MSB) and analog, stereo audio output (ADX-
1852 only)
Analog monitor output muting for non-linear PCM AES
signals
Linear Time Code (LTC) output translated from
Ancillary Time Code (ATC) data or Digital Vertical
Interval Time Code (DVITC)
RS-422 serial data output signal reconstructed from
ANC data inserted by the embedder
Two opto-isolated GPI data output signals
reconstructed from ANC data inserted by the embedder
HD/SD-SDI SMPTE 292M/SMPTE
259M (see list of supported formats
below)
Embedded audio as per SMPTE
299M/SMPTE 272M
Embedded ATC/DVITC as per SMPTE
RP 188/SMPTE 266M
Embedded RS-422 & GPI as per
SMPTE 291M (with proprietary Type-1
DID)
up to 110m/250m of Belden 1694A
>15 dB, 5 MHz to 1.5 GHz/270MHz
AES-3id (SMPTE 276M)
1.0 Vp-p ±10%
75 Ω unbalanced
AES3
3.0 Vp-p ±10%
M682-9400-101
February 2005
Page 1 of 10

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Summary of Contents for Miranda DENSITE Series

  • Page 1 ADX-1852 HD/SD 4 AES Disembedder w. Analog Audio Monitor ADX-1842 HD/SD 4 AES Disembedder Guide to Installation and Operation M682-9400-101 February 2005 ADX-1842/1852 Description • Selectable audio delay of up to 3 frames in ½ frame The ADX-1842 is a high-quality disembedder designed to steps extract up to four AES 24-bit 48kHz digital audio signals •...
  • Page 2: Processing Performance

    ADX-1852 HD/SD 4 AES Disembedder w. Analog Audio Monitor ADX-1842 HD/SD 4 AES Disembedder Guide to Installation and Operation SPECIFICATIONS(cont’d) PROCESSING PERFORMANCE Impedance: 110 Ω balanced Signal Path: 10-bit video / 24-bit audio ANALOG AUDIO OUTPUT (ADX-1851 only) Audio Processing 875 µs (combined embedding and Quantizing: 24 bits...
  • Page 3: Installation

    ADX-1842 or ADX-1852. If any of the following items are The ADX-1842 or ADX-1852 has multiple audio and video missing, contact your distributor or Miranda Technologies outputs, and making space for all the necessary Inc.
  • Page 4 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 and ADX-1852 Menus Resolution affected by input NO REAR/ NO SIGNAL/ 720p50/ 720p60/ 720p59.94/ 1080p24/ 1080p24sF/ STATUS 1080p23.98/ 1080p23.98sF/ 1080p25/ 1080i50/ 1080p29.97/ 1080i59.94/ 625/ 525 AUDIO GROUPS NONE / 1234 EMBEDDED TC...
  • Page 5 ADX-1852 HD/SD 4 AES Disembedder w. Analog Audio Monitor ADX-1842 HD/SD 4 AES Disembedder Guide to Installation and Operation MONITOR OUT ** SOURCE [ AES OUT 1, AES OUT 2, AES OUT 3, AES OUT 4 ] LEVEL 0 (This option is accessible on [ +12 dBu, +13 dBu, …, +18 dBu, …, +24 dBu ] dBFS ADX-1852 only)
  • Page 6: User Preset Menu

    ADX-1852 HD/SD 4 AES Disembedder w. Analog Audio Monitor ADX-1842 HD/SD 4 AES Disembedder Guide to Installation and Operation USER PRESET menu LEVEL 0dBFS: the output level is adjustable in 1 dB steps for an output level of +12 dBU to +24 dBU at full scale LOAD: Selects which predefined parameter settings will be amplitude.
  • Page 7: Status Bar

    Factory tab begins on page 9. The ADX-1842 and the ADX-1852 can be operated using Miranda’s iControl system. This section describes and Info: shows information on the ADX-1842 or the ADX-1852 explains the control panel associated with the ADX-1842 or and allows entry of some data.
  • Page 8 ADX-1852 HD/SD 4 AES Disembedder w. Analog Audio Monitor ADX-1842 HD/SD 4 AES Disembedder Guide to Installation and Operation Audio The Audio tab shows the audio groups detected and provides resources for managing the audio processing of the ADX-1842 or the ADX-1852. Group Detected: indicates embedded audio groups in the ADX-1842 or the ADX-1852 HD/SD-SDI input.
  • Page 9: Monitoring Output

    ADX-1852 HD/SD 4 AES Disembedder w. Analog Audio Monitor ADX-1842 HD/SD 4 AES Disembedder Guide to Installation and Operation Metadata The Metadata tab offers setting options for the output LTC signal for the embedded time code, RS-422 signal, GP1 and GP2. Using the Audio Select drop down menu, select the AES output source for the stereo analog audio conversion.
  • Page 10: User Presets

    This equipment has been tested and complies with the limits in accordance with the specifications in: FCC Part 15, Subpart B; CE EN50081-1:1992; CE EN50082-1:1992. CONTACT MIRANDA For technical assistance, please contact the Miranda Technical support centre nearest you: Americas Asia Europe, Middle East, Africa, UK France (only) Telephone:...

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Adx-1842Adx-1852

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