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Phantom Consisting and 2-Digit Throttles

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  • Member since
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  • From: Baltimore, MD
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Phantom Consisting and 2-Digit Throttles
Posted by CSX_road_slug on Thursday, July 10, 2008 8:00 AM
I just found an old Digitrax UT1 throttle in a forgotten corner of my trainroom.  But it can only handle 2-digit addresses.  My question is, if I wanted to use it to control a switcher with the number 9115, could I 'hide' the 4-digit-address loco in a consist with a phantom Top loco numbered 15*?   [*Assuming there is no other loco #15 on the layout]

-Ken in Maryland  (B&O modeler, former CSX modeler)

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  • From: Westchester NY
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Posted by retsignalmtr on Thursday, July 10, 2008 8:57 AM
if you change the loco's 4 digit address to 2 digit one it would work. if you are going to mu it with a 2 digit loco you could mu it with a dt400 with the 2digit loco as the top address then dispatch the mu set and select the 2 digit address with the old throttle. if you use 15 as an address the loco with 9115 should not run. but i'm not too familiar with the old digitrax throttles so i may be wrong. 
  • Member since
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  • From: Christiana, TN
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Posted by CSX Robert on Thursday, July 10, 2008 10:33 AM
 CSX_road_slug wrote:
I just found an old Digitrax UT1 throttle in a forgotten corner of my trainroom. But it can only handle 2-digit addresses. My question is, if I wanted to use it to control a switcher with the number 9115, could I 'hide' the 4-digit-address loco in a consist with a phantom Top loco numbered 15*? [*Assuming there is no other loco #15 on the layout]


This would work, but there is also another option. You can dispatch engine 9115 with a throttle that can handle 4 digit addresses, and then you can select it on the UT1 by selecting address 99.
  • Member since
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  • From: Baltimore, MD
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Posted by CSX_road_slug on Thursday, July 10, 2008 11:19 AM

 retsignalmtr wrote:
... if you are going to mu it with a 2 digit loco you could mu it with a dt400 with the 2digit loco as the top address then dispatch the mu set and select the 2 digit address with the old throttle.  ...

That's what I had in mind.  If I create a consist on my DT400R with the two-digit number on top, then dispatch it, I could then acquire loco #15 with the UT1 and it wouldn't even need to know there's a loco #9115 in the consist...am I correct?

-Ken in Maryland  (B&O modeler, former CSX modeler)

  • Member since
    June 2006
  • From: Baltimore, MD
  • 1,726 posts
Posted by CSX_road_slug on Thursday, July 10, 2008 12:41 PM
 CSX Robert wrote:
This would work, but there is also another option. You can dispatch engine 9115 with a throttle that can handle 4 digit addresses, and then you can select it on the UT1 by selecting address 99.
That seems like an interesting trick Robert, never heard that one before!  Q: How would it know to select 9115 and not some other random 4-digit-address loco?

-Ken in Maryland  (B&O modeler, former CSX modeler)

  • Member since
    February 2007
  • From: Christiana, TN
  • 2,134 posts
Posted by CSX Robert on Thursday, July 10, 2008 1:26 PM
 CSX_road_slug wrote:
... Q: How would it know to select 9115 and not some other random 4-digit-address loco?


Only one address is marked as dispatched at a time. When you dispatch a locomotive, it is marked as dispatched and available to be acquired until it is either acquired, or another locomotive is dispatched. When you tell a throttle to acquire the dispatched address, it acquires control of which ever one is marked as dispatched. The procedure for acquiring the dispatched locomotive on a UT1 is to select address 99. There is more information on this on page 42 of the DT400 manual.
  • Member since
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  • From: Baltimore, MD
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Posted by CSX_road_slug on Thursday, July 10, 2008 1:41 PM

 CSX Robert wrote:
Only one address is marked as dispatched at a time. ... The procedure for acquiring the dispatched locomotive on a UT1 is to select address 99. There is more information on this on page 42 of the DT400 manual.

OK...thanks!  I'll check it out when I get home.

-Ken in Maryland  (B&O modeler, former CSX modeler)

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