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Miranda AMX-1881

Interface & Distribution




[Image: Miranda AMX-1881]


8 AES HD/SD Embedder with AFD

The AMX-1881 is a high-quality embedder which embeds up to eight (8) AES 24-bit 48 kHz digital audio signals into a single HD/SD serial digital video signal. The module offers audio and video signal presence detection and reporting, and local or remote configuration and control. A unique feature is its ability to embed Time Code, a serial RS-422 data signal (including Dolbytm Metadata) and two GPI status signals into the video signal. The card also serves as a VLI and AFD inserter for an SD or HD signal. The card has built-in audio tone, Time Code and video color bar test signals. The AMX-1881 is designed for use in the DENSITÉ 2 frame.
FEATURES

  • HD/SD-SDI inputwith automatic equalization for up to 110/250 meters of cable.
  • Automaticdetection of video input format
  • Automaticdetection of input video loss and switchover to local black forcontinuity of embedded audio.
  • VLI & AFDinserter for SD signals and WSS for 625 signals
  • Active FormatDescriptor (AFD) insertion for HD signals1
  • AES inputs:either 110 ?¸ balanced or 75 ?¸ unbalanced, depending onrear panel in use
  • Sample rateconversion for asynchronous AES inputs
  • Audio inputchannel gain selectable from -96dB to +12dB by 0.5dB steps
  • Audio groupsinsertion/pass-through/delete
  • Selectable audiodelay of up to 3 frames in 1/2 frame steps
  • Left/Rightchannels swappable for each AES input


  • Automatic mute onAES error
  • Selectablerouting of AES signals to audio groups
  • DolbytmE compatible (48kHz synchronous)
  • 24-bit digitalaudio embedding
  • Monitor selectorfor Densité frame monitoring switch bridge (MSB)
  • Linear Time Code(LTC) embedding
  • RS-422 serialdata input for embedding as ANC data.
  • Dolbytmmetadata insertion using proprietary DID
  • Sampling of twoGPI inputs for embedding as ANC data.



    1Standardproprietary to Miranda and proposed to SMPTE


VIDEO INPUT

VIDEO SIGNAL: HD/SD-SDI, SMPTE 292M /SMPTE 259M (see opposite page for list of supported formats)
CABLE LENGTH: up to 110/250 meters ofBelden 1694A
RETURN LOSS: >15 dB, 5 MHz to 1.5 GHz

AUDIO AES-3ID INPUT

SIGNAL: AES-3id (SMPTE 276M)
LEVEL: 0.2 to 2.0 Vp-p
IMPEDANCE: 75 ? unbalanced
CABLE LENGTH: >400 m

AUDIO AES SIGNALS

SAMPLING RATE: 48kHz synchronous orasynchronous (32 kHz – 96 kHz)
DOLBY-E RATE: 48kHz synchronous
BITS: 24-bit

LTC SIGNAL

SIGNAL: LTC per SMPTE 12M
IMPEDANCE: < 10k? (bridging 600?)unbalanced
LEVEL: 0.3 to 5Vp-p

VIDEO OUTPUT

VIDEO SIGNAL: HD/SD-SDI (SMPTE 292M /SMPTE 259M) Audio embedded per SMPTE 299M / SMPTE 272M LTC embedded asATC/DVITC (SMPTE RP188/SMPTE 266M) RS-422 and two GPIs embedded as ANCdata per SMPTE 291M (Proprietary type 1 DID)


RETURN LOSS: >15 dB up to 1.5 GHz
WIDEBAND JITTER: < 0.2 UI p-p

ANC SERIAL DATA INPUT

SIGNAL: RS-422
LEVEL: 300 mVpp (min)
RATE: 38.400 or 115.200 bauds

ANC GENERAL PURPOSE INTERFACE (GPI) OUTPUT

SIGNAL (2): Contact closure(opto-isolated), common ground
LEVEL: True = 0 to 0.8 V (max.) Maximuminput voltage = ±5.5 V
RATE: DC to 250 Hz

PROCESSING PERFORMANCE

SIGNAL PATH: 10-bit video / 24-bit audio
VIDEO DELAY: HD: 4.5µs / SD: 11.5 µs
AUDIO PROCESSING DELAY: 875 µsaudio insertion delay1
AUDIO DELAY: Up to 3 video frames (1/2frame steps)
LTC DELAY: Up to 3 video frames (oneframe steps)
RS-422 PROCESSING DELAY: max 500 µs1
GPI PROCESSING DELAY: 4 video lines1
TEST SIGNALS:
VIDEO: color bars 100%
AUDIO: 1 kHz tone (R steady, L pulsed) 18dBFS (EBU R49, R68)
LTC: 10 second loop starting at 23:59:00:00
POWER: 7 W

1Note: Applicable to combinations ofthis card and ADX-1881
ORDERING INFO

AMX-1881 8 AES HS/SD Embedder

Choose one of the following rear connector panels:

  • AMX-1881-75-DRP Double Rear ConnectorPanel (75 ?)
  • AMX-1881-110-DRP Double Rear ConnectorPanel (110 ?)
  • AMX-1881-E-75-DRP Extended rear forAMX-1881-75-DRP. (Provides inputs 5-8, GPI & LTC In)
  • AMX-1881-E-110-DRP Extended rear forAMX-1881-110-DRP. (Provides inputs 5-8, GPI & LTC In)
  • DENSITE-EXT-MOUNT Mounting plate forextended rear modules. (1 plate can hold 10 extended rear modules)
  • ADX-AMX-1881-BOC-6 6' cable (requiredto link AMX rear module to extended rear module).
  • ADX-AMX-1881-BOC-3 3' cable (requiredto link AMX rear module to extended rear module).
Housing: Densité 2 RU frame

Remote Control:

  • iControl Remote Control Software
  • iControl Solo Remote Control Software(single user, run on a PC)
  • RCP-100 Hardware remote control panel




[DOCUMENT:PDF]

  
Miranda AMX-1881
Interface & Distribution

 

Item#

 

AMX-1881CALL0.00

Miranda AMX-1881
  

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