Hi,
today was the first time that i had a few resistor networks in my hand and of course i ran into the orientation trap. I thought "resistors, direction won't matter". Well, I've learned my lesson

But there is one thing i don't understand yet.
In the project there are Bourns 102 circuit resistor networks (isolated) and 101 circuit bussed resistor networks with a common pin.
From my beginner understanding the orientation of the resistor array should only matter on the 101 version with the common pin, but why does the 102 one has the little dot to mark pin 1 as well? Why does it matter if they don't have a common pin?
Thanks in advance