Grass Valley SMS-6000 Series - Manual (Page 23)

1-6
Section 1 — Introduction
AES/EBU Digital Audio Routing
The AES/EBU digital audio matrix is capable of handling signals in the
following formats:
■ 32KHz broadcast standard; NICAM
■
44.1KHz compact disk
■
48KHz AES/EBU standard
It can be supplied equipped for 16x16 or 32x32.
Inputs
The audio inputs are transformer-coupled and normally terminated in
110
Ω
.
The audio signal passes through an input receiver circuit which locks an
oscillator to re-clock the signal so that the correct pulse widths and timings
are regenerated. The circuit automatically sets to any of the standards
mentioned above. The phase-locked loop is designed to minimize the jitter
on the signal.
Inputs 1–16 are installed on the main matrix module and Inputs 17–32 on
a submodule.
Crosspoints
A single crosspoint chip has the capacity to switch 32 inputs to the 32
outputs.
Outputs
The output drivers are normally arranged to drive 110
Ω
lines.
The module has the capability of 32 outputs, but for systems with 16
outputs it is installed with only 16 output stages.