Miranda DENSITE Series Manual To Installation And Operation

Description

The ADX-1841 is a high-quality disembedder designed to
extract up to four AES 24-bit 48kHz digital audio signals
from a single SMPTE 259M HD 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-1851 has all of the features of the ADX-1841,
excluding the HD-SDI loop through outputs, plus it provides
an analog audio monitor output for one selectable stereo
pair of signals.
The ADX-1841 and ADX-1851 are designed for use in the
DENSITÉ frame, with the appropriate double-width rear
panel.

Video - Features

•
Serial HD-SDI input with automatic equalization for up
to 110m of cable.
•
Automatic detection of video input format
•
Two pass-through HD-SDI video outputs (ADX-1841
only)

Audio - Features

• AES outputs: either 110 Ω balanced or 75 Ω
unbalanced, depending on rear panel in use
FUNCTIONAL BLOCK DIAGRAM
ADX-1851 4-Channel HD AES Digital Audio Disembedder
ADX-1841 4-Channel HD AES Digital Audio Disembedder
ADX-1841/1851
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Disembedding Other Signals - Features

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SPECIFICATIONS
VIDEO INPUT
Video Signal:
Cable Length:
Return Loss:
AUDIO AES-3id OUTPUT
Signal:
Level:
Impedance:
AUDIO AES3 OUTPUT
Signal:
Level:
ADX-1841/1851
w. Analog Audio Monitor
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 HD-SDI video input
Left/Right channels swappable for each AES outputs
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-
1851 only)
Analog monitor output muting for non-linear PCM AES
signals
Linear Time Code (LTC) output translated from
Ancillary Time Code (ATC) data
RS-422 serial data output signal reconstructed from
ANC data samples inserted by the embedder
Two opto-isolated GPI data output signals
reconstructed from ANC data samples inserted by the
embedder
HD-SDI SMPTE 292M
(see list of supported formats below)
embedded audio as per SMPTE-299M
embedded ATC as per SMPTE RP188
embedded RS-422 & GPI per SMPTE
291M (with proprietary Type-1 DID)
up to 110m of Belden 1694A
>15 dB, 5 MHz to 1.5 GHz
AES-3id (SMPTE 276M)
1.0 Vp-p ±10%
75 Ω unbalanced
AES3
3.0 Vp-p ±10%
M682-9900-101
January 2004
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