Film-Tech Forum ARCHIVE: Question about the sensing cable between a DA20 and CP65

This is topic Question about the sensing cable between a DA20 and CP65 in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Jeremy Weigel (Member # 4208) on 02-05-2009, 09:10 PM:

What is the black module(adapter?) that connects directly into the CP65 then the ribbon cable plugs in to? Can this module be purchased from an electronics store or is it proprietary?

Posted by Tony Bandiera Jr (Member # 2365) on 02-05-2009, 09:27 PM:

Jeremy, it is propreitary to Dolby, it was used as a buffer for the automation pulses to help the reversions from digital to analog and back.

I have extras, if you need one send me a PM and we'll work out the details.

Posted by Jeremy Weigel (Member # 4208) on 02-05-2009, 09:55 PM:

Thanks for the quick reply Tony. I just sent you a PM.

Posted by Tony Bandiera Jr (Member # 2365) on 02-05-2009, 10:07 PM:

You're welcome and PM reply sent. [Smile]

Posted by Steve Guttag (Member # 268) on 02-06-2009, 06:20 AM:

The Cat 410 sped up the reversion process for the CP65/55 by lowering the debounce time on the Cat 443 when the DA20 was sending pulses. Since the DA20 did not need a debounce, the transition time could be shortened considerably.

However, with normal mechanical switches/relays, debouncing is necessary for the logic in the CP65 (or most any other logic switch).

Steve