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MRC AutoReverse Wiring

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  • Member since
    April 2003
  • 305,205 posts
MRC AutoReverse Wiring
Posted by Anonymous on Wednesday, July 21, 2004 5:14 PM
I'm building a new layout after a move and use an MRC autoreverse module. This is kind of embarrassing but I can't find the instruction sheet and forgot which wires go where or if it matters. Do the red wires connect to track power and the yellow to the reversing section?

Thanks in advance
  • Member since
    February 2002
  • From: US
  • 517 posts
Posted by jwmurrayjr on Thursday, July 22, 2004 11:34 AM
Yes, the yellow wires connect to the reversing section.

http://www.trainweb.org/silversanjuan/Page3/Page14.html

[:)]
  • Member since
    September 2002
  • From: Nova Scotia, Northumberland Shore
  • 2,479 posts
Posted by der5997 on Sunday, July 25, 2004 1:39 PM
Wow! That was short and sweet!
Can I piggy back on this topic now the questions' been answered?
I have a loop to loop dogbone layout (A reversing loop at each end.) The loops are powered through the same Atlas Twin switch. By luck rather than care, the system is working so that when the polarity is set for the main going into one loop, the same is true for the other. So, I don't REALLY need polarity indicator lamps, but I would like to put them on.
I've experimented with a bi-color LED, but can't get consistent results.
Could someone please point me to a web page (I have no good access to back issues of magazines) where the wiring for reversing loop polarity indicators is shown.
Thanks .

"There are always alternatives, Captain" - Spock.

  • Member since
    January 2002
  • 1,132 posts
Posted by jrbarney on Sunday, July 25, 2004 7:47 PM
QUOTE: Originally posted by der5997

. . . .
Can I piggy back on this topic now the questions' been answered? . . . .
So, I don't REALLY need polarity indicator lamps, but I would like to put them on.
I've experimented with a bi-color LED, but can't get consistent results.
Could someone please point me to a web page (I have no good access to back issues of magazines) where the wiring for reversing loop polarity indicators is shown.
Thanks .

Der,
Don't have a reference for the polarity indicator lamps, but once someone cites one, you do have access via photocopies of MR articles from:
customerservice@kalmbach.com
and, you can get photocopies of back issue articles from MR and most other RR magazines from the NMRA's Kalmbach Memorial Library:
http://www.nmra.org/library/
for a reasonable fee, even if you're not a member. Admittedly, we can't control the speed of the snail mail.
Bob
NMRA 0543
"Time flies like an arrow - fruit flies like a banana." "In wine there is wisdom. In beer there is strength. In water there is bacteria." --German proverb
  • Member since
    September 2002
  • From: Nova Scotia, Northumberland Shore
  • 2,479 posts
Posted by der5997 on Monday, July 26, 2004 8:01 AM
Thanks Bob, I'll bookmark those. Good to know. John.

"There are always alternatives, Captain" - Spock.

  • Member since
    April 2003
  • 305,205 posts
Posted by Anonymous on Monday, July 26, 2004 11:43 AM
Thanks jw.

Both for the answer and the link, Great Web Site!
  • Member since
    September 2002
  • From: Nova Scotia, Northumberland Shore
  • 2,479 posts
Posted by der5997 on Monday, July 26, 2004 2:48 PM
You are entirely welcome, especially as it was really jrbarney [:D]

"There are always alternatives, Captain" - Spock.

  • Member since
    September 2002
  • From: Nova Scotia, Northumberland Shore
  • 2,479 posts
Posted by der5997 on Monday, July 26, 2004 2:49 PM
OOPs, sorry wrong jw. [:I]

"There are always alternatives, Captain" - Spock.

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