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    HDA-1931 / HDA-3931: Dual 3G/HD/SD SDI Distribution Amplifier (DA) Datasheet (GVB-1-0389G-EN-DS) File size: 571.2 KB, posted Mar 18 2016
    The HDA-1931 and HDA-3931 from Grass Valley, a Belden Brand, are dual 3G/HD/SD SDI video distribution amplifiers (DAs) that support a variety of compressed and uncompressed serial digital video signals.

    The HDA-1931 and HDA-3931 provide up to eight reclocked outputs with automatic equalization for up to 150 meters (492 feet) of cable using Belden 1694A at 1.5Gb/s and up to 90 meters (295 feet) at 3 Gb/s.

    The HDA-1931 and HDA-3931 offer fiber connectivity, making it ideal for longer cable lengths.

    The HDA-1931 and HDA-3931 share the same feature set and specifications, except that HDA-1931 is a 2 RU card built for the Densité 2 frame while the HDA-3931 is a 3 RU card made for the Densité 3 frame series.
    Each product has its specific rears as illustrated in the Key Features section and in the ordering information.