7490 and 7490E
Technical Data

7490

7490E

Tape Speed

2 m/s (79 inch/s)

Recording Density

38.000 bytes inch

76.000 bytes inch

Number of Tracks

18

36

Buffer Storage

4 MB per control unit

8 MB per control unit

Data Transfer Rate (MB/s)

1.5 - 4.5 optional: 6.0 or 9.0

BMPX: 1.5 - 6.0
ESCON: 9.0

Rewind Time

32 s

32 s

(no rewind full cartridge)

Number of Channels BMPX

max. 8 per control unit

Number of Channels ESCON

2 per control unit

4 per control unit

Capacity of Automatic Cartridges Changer

12 cartridges