Dave,
It would be best if your Tortoise pin 5 'GND' connection ONLY connects to one of the two 'GND' terminals on the same AIU that is reading the data. That would put it closely parallel with your two position data lines and make it noise resistant. If you ground it anyplace else then any noise between layout grounds (and there always will be) shows up as noise on the data lines.
Dick :)
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On 9/14/2019 8:09 AM, Video7105 wrote:
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.
Does that make my drawing correct or wrong?
Thanks
Dave in PA
Sent from iPhone Xs Max
On Sep 14, 2019, at 07:27, Dave Heap <dgheap@...> wrote:
Dave
On 14 Sep 2019, at 2:54 PM, Video7105 <video7105@...> wrote:
I would like to know, in the scenario shown in the link below, would detection of the switch alignment, show in Panel Pro, using the tortoise¡¯s internal switches, connected to NCE accessories as noted.
JMRI (PanelPro) certainty supports the NCE AIU board, which connects to the Cab Bus (not the DCC Accessory Bus).
The Switch-8 connects to the DCC Accessory Bus.
There is one error in your diagram:
- Pin 5 of the Tortoise needs to go the the GND terminal of the AIU board (Cab Bus ground). It does not connect to the Switch-8 in any way.
Dave in Australia
