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Old 12-07-2012, 07:42 PM
Wave D Wave D is offline
Join Date: Jul 2006
Posts: 7
Default Not recognizing optical inputs 17-24(Profire 2626). Help needed.

Hey guys,

I wanted to record 24 inputs for a quick demo this weekend w/ my Profire 2626 so I borrowed two of my friends Motu 8pre's to run into my Profire 2626 via ADAT ports A and B to get myself there.

My connections are as followed

Profire ADAT A out ---> MOTU(1) ADAT 1-8 in(clock synced to external no issues)
MOTU(1) ADAT 1-8 out ---> Profire ADAT A in

Profire ADAT B out ---> MOTU(2) ADAT 1-8 in(clock synced to external no issues)
MOTU(2) ADAT 1-8 out ---> Profire ADAT B in

All of the units are synced and I can see any input lighting up and I can monitor any one of them in on the Profire 2626 dsp mixer

In pro tools the default inputs were 16 so I created 8 more to give me 24 and I had the set up as this.

Analog 1-8
Optical 9-24

The issue is that I'm seeing no signal in pro tools from the optical inputs 17-24, which would be the 2nd Motu 8pre in the chain.

Now I can see levels on the Motu and I can even monitor and hear the signal on the internal dsp mixer..but nothing comes into pro tools.

Any help or suggestions is appreciated.
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Old 12-08-2012, 12:59 AM
crizdee's Avatar
crizdee crizdee is offline
Join Date: Dec 2004
Location: Brighton, UK
Posts: 10,696
Default Re: Not recognizing optical inputs 17-24(Profire 2626). Help needed.


Just a few things to check, but I'm not sure how the profile works in relation to the hardware setup, but check...

make sure the various inputs 1-8 / 9-16 / 17-24 are all assigned to the desired analogue or adat inputs.

Check if anything here needs to be selected as digital adat for the 17 - 24 inputs to work.

Setup/ I/O all inputs have been created and assigned to the right inputs on the hardware.

The boxes are ticked for the inputs to be active.

PT MAC Troubleshooting... http://duc.avid.com/showthread.php?t=54888

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Old 12-20-2012, 01:06 PM
The Dougfather The Dougfather is offline
Join Date: Sep 2005
Location: UK
Posts: 3,199
Default Re: Not recognizing optical inputs 17-24(Profire 2626). Help needed.

Pro Tools is a PIA for this and it's a real gotcha.

Go in to the i/o window and under the input and output tabs press 'Default'.


If you regularly change interfaces then you need to almost do this as a matter of course, saving some custom i/o setups is always a good thing too!
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