1x4 SD/HD/3G SDI distribution amplifier

 Part No: 9132 0001 

DA4-3GSDI is a multirate one Input/four Output serial distribution amplifier. Input equalization provides compensation for 140m (3G-SDI)cable loss, while Outputs are reclocked and independently buffered.Front panel LEDs gives quick information about the device status:power, data rate and PLL lock. The unit has a built-in power supply and housed in a metal enclosure for long term reliability and tough environment operation. DA4-3GSDI supports Level A, Level B Dual Link(B-DL) and Level B Dual Stream (B-DS).


  • Rental and staging
  • Military and GIS
  • Medical
  • Scientific visualizations


  • 3G, HD, SD data rates
  • Cable compensation:
    SD-SDI – 400 m
    HD-SDI – 200 m
    3G-SDI – 140 m
  • Internal, built-in power supply
  • Metal enclosure
  • Rack mountable
Data rates: SD (270 Mb/s); HD (1.48 Gb/s); 3G (2.97 Gb/s)
Input cable compensation: SD max. 400 m; HD max. 200 m; 3G max. 140 m*
Power: 110 / 230 V, 3 VA
Power consumption: 1.7 W (typ) 2.1 W (max)
Dimensions: 110 W x 181 D x 42 H mm
Weight: 890 gramms
Compliance: CE
Warranty: 3 years

*Measured with Belden 1694A cable.

Input: 1 x BNC*
Outputs: 4 x BNC*
Power: IEC

*75 Ohm termination.

SDI Comparison Chart
Name Standard Bit rates (data transfer rate) Sample video formats
Standard Definition SDI
  • 270 Mpbs (most common)
  • 360 MBps (widescreen)
  • 143 Mbps, 177 Mbps (NTSC/PAL)
480i, 576i, 625i widescreen270 Mpbs supports 525-line interlaced video at a 59.94 Hz field rate (29.97 Hz frame rate) and 625-line, 50 Hz interlaced video. Highly compatible with NTSC and PAL-B/G/D/K/I systems.
Enhanced Definition SDI
  • 540 Mbps
  • Dual-link 270 Mpbs
480p, 576p, 525p, 625p
High Definition SDI
  • 1.485 Gbps
  • 1.485/1.001 Gbps (supporting frame rates of 59.94 Hz, 29.97 Hz and 23.98 Hz to be compatible with NTSC systems)
Commonly collectively referred to as nominal bit rate of 1.5 Gbps
1080/60i, 1080/59.94i
1080/50i, 1080/30p
1080/29.97p, 1080/25p
1080/24p, 1080/23.98p
720/60p, 720/59.94p
720/50p, 1080psf
3 Gbps SDI
This single cable link will replace
dual-link HD-SDI in future
  • 2.970 Gbps
  • 2.970/1.001 Gbps
Commonly collectively referred to as nominal bit rate of 3 Gbps
1080/60p, 1080/59.94p, 1080/50p

 product brief  front view
back view cad drawing
accessories compatibility table
 CE DoC csg quick start guide


Optional accessories
Rack shelf
The 1U high rack shelf provides mounting holes for fastening two half-rack or four quarter-rack sized units.


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