AT&T 3B2/300 Technical Reference Manual page 545

FUNCTIONAL D E S C R I P T I O N - - - - - - - - - - - - - - - - - - - - - - - - - -
60-Megabyte Cartridge Tape Drive
Figure 3-92 is a functional block diagram of a 60-megabyte cartridge tape drive. The cartridge tape
drive interfaces with the host computer using the Small Computer System Interface (SCSI) industry
standard. The cartridge tape drive circuits include the following:
• Drive Motion Control
• Data Formatting Control
• Read/Write Control
• Buffer
• Sensor Group
• Head Stepper
• Capstan Drive Motor
• Read/Write Head.
The cartridge tape drive circuits combine to do the following:
• Decode, generate, and emulate drive control signals
• Position the read/write head to the selected stream
• Monitor and control tape speed
• Read/write data from/to the media.
3-292 TECHNICAL REFERENCE MANUAL