Product manual
52 Barracuda 2LP Product Manual, Rev. D
8 Unit active LED pin (–)
9 Enable SCSI terminator (ST31250W
and ST32550W drives)
10 Ground
11 (+) 5 volts
12 No connection
13– 20 Reserved
J5 1 & 2* SCSI ID bit 0
3 & 4* SCSI ID bit 1
5 & 6* SCSI ID bit 2
7 & 8* SCSI ID bit 3
9 & 10 Remote unit active LED connector
Pin 9 = cathode (–), pin 10 = anode (+)
11 & 12 Spindle sync connector
Pin 11 = SSREF (+), pin 12 = ground (–)
*See Figure 20 to set the SCSI ID.