Dave in PA,

Yes I saw your other comment about 'where the gnd comes from'. For the AIU
with respect to the Tortoise, it is the first pin of the connector with the
other 7 inputs. While the gnd on both connectors are likely connected
internally, I would make the effort to keep the pins used stay with their
side of the AIU. More for consistency sake but following those sorts of
ideas is safest without knowing all the internal details of a board. I
follow that logic with all nodes of many types.

-Ken Cameron, Member JMRI Dev Team
www.jmri.org
www.fingerlakeslivesteamers.org
www.cnymod.org
www.syracusemodelrr.org

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Thanks Dave for chiming in. ?The AIU board Gnd is connected to the Separate Accy Power Bus, on the ?“-“ side of the power supply. So am attaching Pin 5 also to the same Gnd on the Accy Power Bus, which is also the AIU Gnd.

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It seems am having a problem understanding where the AIU GND should come from to start with, if not like like I have it.?

The positive side of the wall wart goes to my + connection on the BD20’s, in case I even decide to use it and the + side on the external power supply for the Switch8 MK2. No positive goes to the AIU, from the wall wart

If wrong, I have way to much invested in burning equipment up.?

Where is the suggested GND, for these panels, suggested to be obtain?

WOW. Thank you. I will try that tomorrow. That would be great. Thanks again.?
Frank in Houston?

Thanks Ken,
I thought that was what I was doing. But maybe I muddied water with the wrong term. AssyBus

Thanks
Dave
In PA

Sent from iPhone Xs Max

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Thank Dave for the link and further advise. ?The GND in question has no relationship to the layout, since it’s powered by a wall wart only.?

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Hello All

I have learned that I cannot program any engines w/ JMRI on my program track.? JMRI works fine when I program on the main.
I believe my PS14 power supply (with a Power Pax) is to low

Can someone suggest an 18volt power supply to try?

Thank You
Frank

This is the 18v P/S I got for my PR3.? With it I could program everything but a BLI Paragon 2 N-Scale PRR M1a/b.? I had to go to a SPROG 3 for that.? I could program ESU, Digitras, Lenz, NCE, TCS and Soundtraxx Sound Value Decoders (Bachmann).? I did have a Soundtraxx Tsunami or other decoders.? Nor a QSI or MRC.

Specifics:
Input Voltage: AC 100-240V (Worldwide AC Input)
Input Frequency: 50-60Hz
Input Connecter Standard: 2 Pin US Plug
Output Voltage: DC 18V 1A
Connecter Size: 5.5*2.5mm As the pictures shown
Cable Length: 4ft
Color: Black

-- 
John H. Reinhardt
  PRRT&HS  #8909
  C&O HS  #11530
  N-Trak   #7566 

I just finished installing a TSU-PNP GE, and have run across a strange problem.? When I try to add a new loco in DecoderPro, it fails to correctly identify the decoder.? If I manually select the correct decoder from the list, I cannot read or write any CVs to the decoder.? As soon as I try to read CVs, the startup sound starts playing from the decoder, and I continually get "no locomotive detected (301)".? Has anyone else run across this?

I did just get a new computer, but I do not believe that to be the issue, as I have been able to identify and read a TSU-2200 Alco, and a TCS WOWSound steam.

Thanks in advance for any advice!

Shawn

I think a good way to explain this is to insure the current that flows out
to the contacts on the Tortoise flows back to the same spot and takes the
same route. This is the best way to insure things like noise has the best
chance to cancel itself.

Now if the gnd at the AIU is internally part of the board is also tied to a
more system wide common should not change this. You want the current to
follow the same paths within a circuit and not some detour. I think of it
more like a balancing condition, you don't borrow electrons from somewhere
else, you keep each board using only the ones that passed through it, not
another board.

-Ken Cameron, Member JMRI Dev Team
www.jmri.org
www.fingerlakeslivesteamers.org
www.cnymod.org
www.syracusemodelrr.org

Bob,
Thank you for the help.
Please let me know when to download the new JMRI.


Ken

I'll chip in with my PowerPax history. I came before the PTB-100 was
available, maybe before the PR3 too. But it came with an 18V supply. I've
been using it successfully for at least 6 years now, maybe more. Right now,
only the new Tsunami 2's need me to bypass the PowerPax. That's running with
a DCS200 and I think that's about when I got the PowerPax was when the
DCS200 came out.

-Ken Cameron, Member JMRI Dev Team
www.jmri.org
www.fingerlakeslivesteamers.org
www.cnymod.org
www.syracusemodelrr.org

Hi there, I have had similar problems with my PR4. Can anyone suggest the best product to use as the power supply and the PS14 jack on the PR4?
Or alternatively an adaptor between standard chargers and the jack on the PR4?

Regards Alex

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Thomas,

On 17 Sep 2019, at 3:45 AM, Tom Cain <atsf93@...> wrote:

My DCC command station is the NCE PH Pro 5 amp system. I purchased a Power Pax to program the newer sound decoders and it seemed to do the job for a while, but eventually I put it away and purchased the Soundtraxx PTB-100 and it works just fine. Buying the Power Pax which was a little cheaper was my way of hoping to save a little money but that did not work out.

My experience with the NCE Power Pro, PowerPax and PTB-100 was similar. The PowerPax did not work as well as the PTB-100 with my Power Pro.

Dave in Australia

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Since the switches inside the tortoise are isolated, where is the GND Loop supposively happening at?

Hi P?r,

I have uploaded a script example that will hopefully be helpful.

/g/jmriusers/files/VSD/SensorListener.py

You have to open the LocoNet Monitor to see the transponding messages.
Open the sensor table (Tools >> Tables >> Sensors) and click on an sensor state.

Regards
Klaus


Am 16.09.2019 um 12:23 schrieb P?r Ekstrand:

Frank:

The suggested solution to the Android change is to operate in Airplane mode. This turns the phone system radio off so we're not trying to connect to the net over that network.

Jim Albanowski

On Sun, Sep 15, 2019 at 05:47 PM, Roger Merritt wrote:

Dave,

How are you loading JMRI since I've been downloading just the image file?

Roger

Roger,

Downloading a new image from Steve seems a drastic way to upgrade JMRI when all you need to do is download a linux version of JMRI and extract it.
If you checked all the links Steve provide, he has one that goes to a page where he has a full write up on how to upgrade JMRI


--
Peter Ulvestad

JMRI Users Group Moderator - ( )
Tam Valley Group Moderator - ( )
Sprog-DCC Group Moderator - ( )
Edmonton Model Railroad Association -

Hi,

I am using JMRI for a shelf layout I have. I run my trains using scrips and
I am using decoders, sensors etc from a Swedish company? mollehem.se

My layout is N-scale and I would like to use VSD for the loco sounds.

I am trying to figure out what LocoNet messages to send in my scripts
to mimic the messages sent by the Digitrax Transponding system to
report loco possitions.

Since I only run my trains with scripts I thought that I could put in LocoNet
messages in the scripts that will tell the position of the trains to VSD when
I get a message from the corresponding sensor that the train is located there.

Is there someone that could help with the how a LOcoNet message like that should look like ?

Best Regards
P?r Ekstrand
Stockholm

Bradley: Turning off auto connect removes one potential problem but the other is that your phone may be looking for an internet connection - and there isn't one on your layout router I presume. There should be a setting somewhere in your phone to force it to ignore internet connectivity when connecting to a wifi network.

Rather than fiddling with your phone settings you can automate all of this with the free WifiPrioritizer app. It allows you to fine tune when to connect to which networks and to ignore or consider internet connectivity separately for each. In your case, you could have your phone set up exactly as it used to be but then lock on to your layout router whenever it is active.

Jan