IBM Personal System/2 CL57 SX - Diskette-Drive Controller

1.2.4 Diskette-Drive Controller
The controller connects to the diskette drive through two interface
connectors on the system board using a flexible cable. Both signals and
voltages are supplied through this cable. These signals and voltages can
only operate one IBM 3.5-inch diskette drive.
IBM PS/2 Model CL57 SX HMR
Diskette-Drive Controller
_ Copyright IBM Corp. 1991
1.2.4 - 1