Electrical and environmental requirements
Electrical fit
Power requirements
NOTE:
SAS drives do not have a regular 4-pin power connector and must be powered through the SAS
connector.
The following are the PSU requirements for FC and SAS half-height drives:
Voltage Typical Current Maximum Steady State Current
5V 4.0A 4.0A
12V 1.0A 1.10A
See also details in Chapter 3, Electrical Requirements in Ultrium LTO-8 Tape Drives Technical Reference
Manual Volume 4 Specifications Guide.
The drive is specified to operate at 5V ±5% and 12V ±10%.
Voltage and current requirements
Voltage and current requirement are as follows:
Half-height drives
FC Drives SAS Drives
Specification 5V 12V 5V 12V
Max voltage 5.25V 13.2V 5.25V 13.2V
Min voltage 4.75V 10.8V 4.75V 10.8V
Peak Instantaneous Current
< 1ms
4.5A 4.0A 4.5A 4.0A
Max noise/ripple 100 mVpp 125 mVpp 100 mVpp 125 mVpp
Airflow requirements
HPE LTO Ultrium drives require forced airflow to ensure that components never exceed critical
temperatures. The following requirements and the operating temperature specification will keep the
internal temperature around the media to less than 45°C and ensure reliable operation.
The airflow will circulate or move from front to back at 3.0 cfm and does not require filtering if the air
contamination specifications are met. See Climatics in Chapter 5, Environmental in Ultrium LTO-8 Tape
Drives Technical Reference Manual Volume 4 Specifications Guide.
Electrical and environmental requirements 7
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