Epson Equity 286 PLUS - Manual (Page 178)

8. Looking at the subassembly, locate one of the power supply
cables that lead from the power supply (behind the
horizontal drive bays). The cables are labelled Pl, P2, or P3.
You can use any of the three cables. As shown below, the
end of the connector has two notched comers.
The power supply socket on the back of the drive is next to
the ribbon cable connector. The socket also has two
notched comers, as shown below.
power supply cable power supply socket
notched
corners
notched
corners
You must connect a power supply cable to each drive you
install in your system. If you’ll be reinstalling a hard disk
drive in the vertical mounting position, connect the power
supply cable to this drive first. If not, connect the power
supply cable to the drive you just installed in the lower
horizontal drive bay.
Installing
and Removing Disk Drives
B-39