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Daisy-chaining OTC's

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  • Member since
    September 2006
  • 32 posts
Daisy-chaining OTC's
Posted by fastrackjonnie on Tuesday, December 5, 2006 8:43 PM

For my FasTrack layout, I prewired my two OTC's in daisy-chain fashion, according to the Lionel manual.  My intention was to use the first OTC for operating tracks and the second for uncoupling.  I coded the first to "98" to reflect its use for operating tracks and coded the first wired position as "1".  After I was able to get it operating, I wired up the uncoupling track and coded the second OTC to "99" to reflect its use for uncoupling.  I also coded its first wired position as "1".

Unfortunately, the second OTC doesn't uncouple; instead it operates as another operating track controller, responding to position "2".

Should I have disconnected the second OTC from the daisy-chain before I programmed the first OTC in order to avoid inadvertently programming both? 

  • Member since
    July 2006
  • From: Plymouth, MI
  • 1,615 posts
Posted by chuck on Tuesday, December 5, 2006 8:58 PM
Whenever you program a TMCC device, only pull one jumper for programming.  If you pull both, both devices will be programmed exactly the same way.
When everything else fails, play dead

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