HP Integrity NonStop H-Series - Manual (Page 33)

Section 1: General Information
Chapter Six
6.1 Cabling Limitations
Maximum total allowable cable length for a differential SCSI interface is 82 feet (25 meters). This distance
must be measured from the controller to the last device on the bus. Cables must be 110 ohm twisted pair. If
you are using a cable of unknown composition, replace it with the one provided by HP. When ordering,
reference one of these part numbers:
519-001W
424360-001 1 meter (3 foot) SCSI Cable 68-pin to 68-pin
519-003W 424361-001 3 meter (10 foot) SCSI Cable 68-pin to 68-pin
519-015W 424362-001 15 meter (50 foot) SCSI Cable 68-pin to 68-pin
519-020W 424917-001 20 meter (67 foot) SCSI Cable 68-pin to 68-pin
519-023W 424363-001 23 meter (77 foot) SCSI Cable 68-pin to 68-pin
6.2 Differential Devices
The 5242 and 5242-ACL tape drives support a high voltage differential SCSI-3 interface.
6.3 Cooling Fan and System
The cooling system provides excellent heat dissipation at critical locations, such as read/write heads, where
excess heat results in higher data failure. A unique airflow design directs cool air over these critical locations
within the chassis.
6.4 Specifications
This section provides technical specifications for the tape drives.
6.4.1 Electrical
Specifications
6.4.1.1 External AC power:
• V115/230 1.0/0.5A 50/60 Hz
6.4.1.2 AC power outlet (to be used for stacking units only)
• V115/ 230 7.0/3.5A 50/60 Hz
6.4.1.2 Internal DC power:
• 5242: +5, +12 volts 25 watts
• 5242-ACL: +5, +12 volts 65 watts
6.4.2 Display Unit
• 32 characters in 4 lines of 8 characters each
• Supertwist LCD technology
• Extra-wide viewing angle
• Full LED back lighting
HP StorageWorks DAT 72 (Models 5242 and 5242-ACL) User's Guide 26 HP Part Number 528296-03 July 2005