Figure 4. Connecting Cable-Selected Drives - Seagate ST3655 Series Product Manual

ST3655 Family AT Drives Product Manual, Rev. A
Slave
Pin 28 is open
Master
Computer

Figure 4. Connecting cable-selected drives

Note. Early ST3655 family drives do not support the cable select option.
To use cable select on an ST3550A, your circuit board part number
must be 260058-109 or 260100- xxx . To use cable select on an
ST3390A or an ST3655A, your circuit board part number must be
260124- xxx .
Master
Slave
Pin 28 is open
Computer
19