So, when daisy-chaining boards together, the 5 pin power connector needs to be attached to the LAST board in the chain?
If multiple boards are being supplied with enough power, how many could be PRACTICALLY chained together?
We have not tested the firmware with chains longer than 3 boards. This is the configuration present in the Sierra product.
Practically, the limit is getting all the boards powered. If the Sierra, there are 2 PSU's, and the left side of each board is connected to one PSU, and the right sides are connected to the other. It's important that the grounding be the same on the left side to ensure reliability. This will be what ultimately limits how many you can practically chain.
-Phil