AT&T 3B2/300 Technical Reference Manual page 209

- - - - - - - - - - - - - - - - - - - - - - - - - - - EQUIPMENT DESCRIPTION
Cartridge Tape Drive Equipment Characteristics
Physical.
Tape
Tracks
Tape Speed
Recording Density
Formatted Size
Height
Width
Depth
Operational.
Interface
Transfer Rate
DC600A cartridge tape ( or equivalent)
6
78 inches per second
6400 bits per inch (nominal)
45,541 blocks (512-byte blocks) total
45,539 blocks (512-byte blocks) accessible
3.25 inches
5.75 inches
8.0 inches
SA450 (34-pin connector)
500 kilobits per second
EQUIPMENT DESCRIPTION 2-185