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4261D 3G-HD-SD Quad AES Audio Embedder

4261D 3G-HD-SD Quad AES Audio Embedder

The 4261D 3G-HD-SD quad AES audio embedder inserts four balanced AES audio streams (8 audio channels) into the ancillary data space of an SDI signal. Audio can be inserted into any two embedded audio groups. AES inputs can be sample rate converted to a 48kHz rate synchronised to the video. Conversion may be bypassed for compatibility with Dolby® streams. Two units can be cascaded to enable embedding into all four available groups (16 audio channels).

The unit automatically detects whether the SDI input is 3G, HD or 270Mb/s SD SDI. There is automatic input cable equalisation and two re-clocked SDI outputs are provided.

The unit requires an external power supply or a rack mounting frame. Please see MiniBlox Accessories.

Key features

  • Automatic 3G, HD, or SD SDI standard detection
  • Inserts four balanced AES audio streams into any two groups
  • Internal sample rate converters for 48kHz AES synchronous with video input
  • LEDs show group status and input signal presence
  • Automatic input cable equalisation
  • 2 re-clocked SDI outputs
  • Compact and rugged design
  • Optional XLR breakout cable (BNC to XLR adaptors available for unbalanced AES inputs)
  • Optional external power supply
  • Optional rack mounting frames with central power supplies

Technical Specifications
Video Specification
Video input
3GSMPTE 424M & 425M-AB (2.97 & 2.967Gb/s)
HDSMPTE 292M (1.485 & 1.435Gb/s)
 1080i 60/59.94/50
 1080p/psf 30/29.97/25/24/23.98
 720p 60/59.94/50/30/29.97/25/24/23.98
SDSMPTE 259M-C (270Mb/s)
 625i 50
 525i 59.94
ASIDVB-ASI at 270Mb/s
Connector75 Ohm BNC
Return loss>15dB to 1.485GHz
 >10dB 1.5 to 2.97GHz
Cable equalisation3G to 140m, HD to 230m, SD to 250m
 (Belden 1694A)
Video outputs
StandardsAs input
FormatAs input
Connectors75 Ohm BNCs
Jitter<0.2ui peak-to-peak
Return loss>15dB to 1.485GHz
 >10dB 1.5 to 2.97GHz
StandardsSMPTE 299M & 272M-C
Audio specification
Audio inputs
InputsBalanced AES digital audio
ConnectorFemale 15pin sub-D
TypeTransformer coupled
Sample rate32-96kHz
Sample rate conversionAES converted to 48kHz synchronous with video
(selected by dipswitch)
Impedance110 Ohms
Input level3.5v p-p ±5%
Electrical Specification
ConnectorLocking 2.5mm jack (centre +ve)
Control specifications
Setup6 way dip switch
Other Specifications
LEDsPower, input presence & group status
Size (mm)63.5 x 84 x 30 plus connectors
Temperature5°C to 40°C
Humidity80% max (non condensing)
Description      Each:
Price Qty
DTL 4261DMiniBlox 3G-HD-SD quad AES audio embedder£621.00
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