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Topics - ON28

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RailPro Discussion & Help / RP circuit breaker compatibility
« on: Today at 02:34:49 PM »
Hello group--

Asking if the RP CB-1 is compatible with other makes of circuit breakers. I have a quintet of PSX breakers from DCC Specialties, will the CB-1 daisy-chain with these for my RP/NCE layout? Same question about the reverse loop module. RP claims no delay in crossing insulated blocks at low speed, I recently saw a video showing how to adjust a CV to eliminate loco hesitation when moving from the PSX-AR block to a PSX block, I'd rather not deal with that if I don't have to. Thanks!

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RailPro Discussion & Help / Unusual speed number display
« on: July 03, 2020, 04:39:08 PM »
Was running today and noticed a smaller type, whole number in the same box and below the speed number. It was the decimal speed as a whole number -- 1% for speed 0.1-1%, 2% for 2.0-2.9%, etc. It was not the brake percentage, which is below the speed number box. Anyone know what this is? It occurred in the lead unit of a three-unit consist running on NCE power at 14.25v.

RailPro Discussion & Help / HC won't turn on
« on: June 04, 2020, 12:17:06 PM »
Hello all--

Tried to power on my HC, I got the home page briefly before it shut down. The power button would not turn it back on. It was fully charged and last used a week ago. Any help is greatly appreciated.

I have a Roundhouse EMD Model 40 critter that has insufficient space for a module. Can I control the loco by connecting the module to a given segment of track instead of directly to the engine? This would be for an industrial plant electrically insulated from the rest of the layout. There is a small TCS DCC decoder to fit the 8-pin plug in this loco but I'd rather go RP.
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General Discussion / All about iPhone speakers for MRR sound
« on: May 04, 2020, 06:22:54 PM »
Kaylee Zheng's excellent recent NMRA clinic on installing iPhone speakers for sound. She also talks about other cellphone speakers. I use iPhone speakers for my locos, they're cheap and easy to install.

RailPro Installations / Atlas GP7 with keep-alives
« on: April 27, 2020, 02:14:33 PM »
Hello all. This is an upgrade of my previous install. I installed keep-alives in two RailPro locos, the difference in performance is startling. Like having the convenience of a battery without the inconvenience of a battery. I used TCS KA4s, which are about the size of a sugar cube and wire directly into the RailPro module without a bridge rectifier. Here's a photo of the Atlas GP7 install, I located the KA4 with double-side tape on a styrene strip under the cab.I had to bend brass wire conductors for the headlight around the keep-alive as it was the easiest way to correctly position the LED behind the headlight lens. Amazing how the loco crawls through my unpowered Atlas C100 and 83 frogs, and -- bonus! -- because RailPro modules "talk" to each other the non-KA locos run better in MU configuration!

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RailPro Discussion & Help / Consisting questions
« on: February 24, 2020, 04:14:20 PM »
First, thanks to Bill for hosting this board, very helpful. I am a new user, and have a mix of LM2s and 3s in an HO consist of (older) Intermountain F3, Atlas/Kato GP7 and Proto-2000 BL2. I tore down and cleaned up the drive trains of each, then installed the LMs (see photos on other threads). All LMs and HC are up to date. My question is, just how well are these locos supposed to MU together? The Proto unit seems for the most part best run alone. All have lights, the Geep and F3 have sound. I'll add that the Kato drive is far superior to the others, and I added bronze phosphor wipers to the Proto. How much of the differences among these units is supposed to be ameliorated by RP's MU function? Because RP seems to promise a much better MU experience than the tedious process of fiddling with CVs in traditional DCC, but actual results are short of perfection. Do I expect too much? 

RailPro Installations / Intermountain F3 install
« on: December 04, 2019, 09:32:52 AM »
Sharing this, an LM-3S in an HO 8-pin DCC-ready Intermountain F3. I first tore down and cleaned up the drive components, a process which is essential for most efficient performance, since I acquired this loco second-hand. Stiff pickup wires caused the original trucks to derail -- a known issue -- Intermountain provided replacements. I retained the factory light board for plug-in convenience and added a Yelo-Glo Miniatronics LED headlight, mounted on a styrene base that will also support crew figures. The LM is at the rear, with an iPhone 4S mounted on top, and both fit with no frame or shell modifications. I downloaded a generic diesel sound which offers more bass rumble than the ULT 567-16. An older model that's nicely-detailed and a good runner with RailPro.

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RailPro Installations / Proto BL2 install
« on: November 17, 2019, 04:49:36 PM »
My second install, pulled the light board and hard-wired an original late-issue BL2 with an LM-2. I left in the plastic board to mount the module and lights. The headlight and rear light are Miniatronics 3mm YeloGlo LED with resistors, shrouded in heatshrink. I added heatshrink tubing to cover solder joints and other bare wire. For neatness, I removed unused wires from the JST plug. The crew figures got some detail paint, as well. Still have some work to do to seal light leaks in the cab, and to add phosphor wire pickups to the trucks. Interestingly, this loco runs better in a consist than alone.

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RailPro Installations / Atlas GP7 install
« on: November 14, 2019, 11:14:56 PM »
Thought I'd show my install -- my first sound and light job for any loco. I retained the factory light board for plug-in convenience of the LM-S3, with the board's protruding pegs clipped off. I wired a pair of shortened iPhone 4s speakers in series, for greater amplitude, mounted on .030 styrene super-glued to the chassis towers. I got the speakers from Kaylee Zheng of Tom's Trains in Connecticut ( The lights are Miniatronics YeloGlo LEDs, shrouded with shrink tubing, mounted near the stock lightbars with the tube extension clipped off. I use masking tape to hold things down, easier to manipulate than Kapton tape.

RailPro Discussion & Help / Model Railroad Planning and RP
« on: November 14, 2019, 09:24:23 PM »
Large O scale layout featured in MRP, noting in the Table of Contents and high up in the story that it runs deadrail on battery. Only later in the text does it briefly mention RailPro installed by Remote Control Systems of New England. All well and good, but this is one reason why, when I tell other hobbyists I am using RP, they say, "Oh yes, that's a battery system." Only when I demo and explain that it runs on constant voltage like DCC do they warm to the subject.

RailPro is (and is perceived as) a fringe system, and that's a shame for the all good things it brings to the table. 

RailPro Discussion & Help / LM2S behavior
« on: October 31, 2019, 02:00:19 PM »
Hello board,

I hard-wired an LM2S in a Life-Like Proto BL2. It runs fine except for occasional stalls on dead spots, such as frogs, which causes the module to switch direction and I have to change it back. Also, a stall will sometimes unlink a consist, forcing a re-linking. Is this normal behavior for the module? I am using Atlas metal frog C100 and 83 switches without supplementary feeds. Thanks!

RailPro Discussion & Help / Proto 2000 BL2 install
« on: September 19, 2019, 04:07:53 PM »
When I plugged in a tested LM-3S to my working-on-DC DCC-ready Life-Like late release BL2, I could hear power to the motor but nothing moved. Couldn't do the auto current test, either. I had removed the factory light board and disconnected the factory light bulbs. Second try I disconnected the motor wire to the frame but I can see now that was a mistake as the motor is already isolated from the frame. Again, the loco worked fine on DC and the LM worked fine on another unit. Any ideas here are appreciated.

RailPro Discussion & Help / LM-3S over voltage question
« on: September 15, 2019, 11:55:43 AM »


I recently bought a used LM-3S. I tested it in my Atlas Classic GP-7, which I have been running for several months fine with another 3S. I set the max voltage on the "new" module but when I tried to throttle up, it returned an Over Voltage warning. I tried resetting to default settings and performing another max voltage test, but the test failed, too. I removed the module and tested a number of other modules, which worked OK. Any suggestions here? Thanks!

RailPro Discussion & Help / MU LM-3S and LM-2
« on: August 11, 2019, 02:42:47 PM »
Are there any issues consisting a loco with an LM-3S and another with an LM -2? Separately, do I have to add resistors if I swap out bulbs for LEDs with either the LM-3 or -2, or are they configured to accommodate LEDs without a resistor? Thanks!

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