———-[Mobile IO Clock]———–
The old clock could be up to 50 ppm or so in practice(and it is actually only spec’ed to 100ppm) off in frequency accuracy.
The new 2D clock is speced to +/- 10ppm and in practice is generally within +/- 5ppm.
The Legacy clock had higher intrinsic jitter at 44.1k than at 48k (and multiples).
On legacy boxes, the 44.1 and mutiple clocks are generated via PLL from the 48k master crystal clock and the jitter is higher as a result of the PLL (the PLL oscillator has intrinsically higher jitter than the crystal reference).
In 2D clocking it is the same at all sample rates.
A BNC T adaptor cannot be used to split the MIO Word Clock because the unit is internally terminated. To chain Word Clock loop from the In to the Out on the rear of the MIO unit.