The goal is identify hot and neutral wires in a 3-way switched line-array of lights, so that the array can be controlled by an Acuity SP20 Secondary Relay Pack (bottom device):
Said line-array of lights is the only 3-way switched several line-arrays. The other line arrays are controlled by a single switch. Said switches form a
bank of switches at the building entrance.
The target line-array is located between the two switches:
Is there any reason to doubt that the wiring diagram above represents how the switches are wired? or maybe the better question is: How can I confirm that the that the diagram represents said line-array and that the hot and neutral are located at the switch
bank located at the building entrance? Diagnostic procedures that are simple / less invasive are preferable
The sub-goal is: How to identify which common terminal of the 3-way switch is connected the hot wire (left 3-way switch) vs, the
switched hot wire (right 3-way switch)