On the job

 Today on the job, we encountered an eight wire system on a commercial visit to a client..
That eight wire system was connected to what is known as a plug-and-play shown below.

The former receptacle from the plug-and-play blew out and malfunctioned.
The old one was immediately removed carefully from live at the box from the wall.

 When voltages our poor checked all voltages read on each of the wires 15 V. That is except for the black wire which was 125 V . Using two parts of a circuit breaker finder. Backspace,  The circuit breaker that ran from this was easily able to be found through deduction and observation  initially after voltages were checked they were wire netted the lights will turn on from the plug-and-play but the receptacle ran it for  15 V. After using the circuit breaker finder in order for the receptacle and the lights to word  pink wire that ran to the lights was united with the hot wire or black wire that return to the receptacle in this parallel connection both could receive power.  In this way the pink and black wires that ran to their reset respective receptacles and lights  in this way the pink and black wires that ran to their reset respective receptacle in lights receive power from the block  both receive power from the black wire that came from the panel with the exception of the pink wire that came from the panel which was noted alone the other wires or wire netted with their name same colors.