It is possible to send and receive digital audio via Alesis' 8-channel ADAT LightPipe optical format in CNMAT's main room from various sources, for instance:
MOTU 2408
"Visiting" audio devices such as Rimas Boxes and MOTU 828s connected
to laptops
In order to avoid manually repatching the ADAT LightPipe connections for these
devices, CNMAT has installed a Midiman DigiPatch 12x6 digital audio patch bay
in the rack in the main room. All the ADAT LightPipe connections in the main room go through the DigiPatch
The DigiPatch 12x6 digital audio patch bay has 6 optical inputs and 6 optical
outputs (plus 6 coaxial inputs and outputs that we don't use). In any given
"program", each output (aka "target") takes its input from exactly one input (aka "source"). There is an internal memory to save and recall programs. Making a new program consists of going through each target and choosing a source for it.
Since each LightPipe-using device at CNMAT has both inputs and outputs, we
use the same numbering scheme in both directions. Here's the list of what's
plugged into the DigiPatch:
Not connected (formerly connected to O2R slot 2)
MOTU Bank C (from the MOTU 2408 connected to ReFuzzed)
Ridji Bank B (not connected when Ridji is not in the main room)
Rimas Box (two long LightPipe cables that are reserved for connections to
and from a Rimas Box (or any other interface) on a "visiting" laptop)
Programs 1-8 on the DigiPatch simply route the corresponding input to all of
the outputs. For example, in program 2, the output from MOTU Bank C goes to
output 1 (formerly the input of the Yamaha 02R), the input of MOTU Bank C, the input of Ridji Bank B, and the input of the Rimas Box. In program 4, the output from the Rimas Box goes to all those inputs.
