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Slink-e / CDJ Discussion Archive #2

Re: Control-S question

Posted By: Colby Boles <cboles@s...>
Date: Monday, 12 October 1998, at 11:39 a.m.

In Response To: Control-S question (James)

>>Is Control-S "send only"?

My experience has been that Control-S is a unidirectional protocol, but it is conceivable that it could be made to work bidirectionally in some Sony equipment. Control-S is basically a wired version of the IR signals sent by Sony remotes. The waveforms are identical, only the carrier has been removed. In fact to send out Control-S on the Slink-e, one simply takes a Sony IR type device file and sets the carrier to 0.

If not, will the Control-S port on the slink-e recieve commands from the control-s

as well as send commands to it?

Yes, the Slink-e has 8 general purpose "IR" ports for receiving and transmitting data. If you wanted to receive Control-S data, you would just need to make up and additional 1/8" jack connector which connected to one of the IRRX ports. You would also want to reverse the input polarity of this port in the Slink-e settings using slinkeserv. This is because Control-S is "active-high" instead of "active-low" like the standard IR receiver modules I supply.

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