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?
The AIU GND is connected to the NCE Cab Bus ground and hence to the case of the Power Pro.
No connection is to be made between the AIU GND pins and anything else except the ground returns of all sensors going to AIU pins.
All sensor ground returns must return directly to the AIU GND pins of the AIU that particular sensor is connected to.
In your diagram, that means that Tortoise pin 5 must be connected directly to the GND terminal of the AIU that pins 6 & 7 are connected to. No other connection is to be made to pin 5 of the Tortoise, or to the AIU GND (except pin 5 of other Tortoises).
No connection is to be made between your ACCY bus GND and any pin of the Tortoise or the AIU.
Your external ACCY power DC supply GND is to go to the sleeve of the coaxial DC socket on each Switch-8 Mk2.
Your external ACCY power positive DC supply is to go to the tip of the coaxial DC socket on each Switch-8 Mk2.
Your external ACCY power DC supply must not in any way connect to any other NCE product except the DC sockets on each?each Switch-8 Mk2.
Dave in Australia
