"allisonp@world.std.com" "Allison J Parent" wrote:

> < To Allison,  The bus that drives an RA-81, how fast can you push this?
>
> I know they are fast but I don't know the details.  I think in excess of
> 14m bytes/sec, could be higher.  Also depends if they are CI connected or
> Massbus and all that.

The SDI bus be clocked at up to 22Mbits/sec or so with a max cable length of
maybe 80 feet (plus some allowance in the start and end cabs). The RA81
(introduced in 1982?) has a peak transfer rate of 17.4Mbits/sec and a capacity
of 456MB. By way of contrast the RA92 (1.5GB) runs at a peak transfer rate of
22.16Mbits/sec.

Antonio