Reply to "Lionel Fastrack Command Control Switch wired to a 153 block signal"

cjackOGR Forum Member DIGITAL SUBSCRIBER

Originally Posted by gunrunnerjohn:

Don't forget the diodes.

The diode is for? The signal comes from the yellow wire...and goes to the relay opto coupler...is the opto ok for minus 5? Does the opto just have an led as its input and not short the minus 5 so it will still light the red led?...I. Know that some of them have a reverse diode at the input. just wondering...have to look up what opto it uses.

3/15/1410:59 AM

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