HP MSL6000 Series - Manual (Page 22)

Introduction 22
Power Supplies
MSL Series tape libraries support one or two power supplies depending upon the model (see
Figure 4 ). These auto-ranging power supplies are capable of using any nominal AC voltage
between 100 VAC and 240 VAC power, at 50 Hz or 60 Hz.
Power to the library is supplied through AC connectors at the rear panel of each power supply
receiver. Library power is normally controlled from the graphical user interface (GUI) touch screen;
however, a manual power disconnect switch is located at the rear of each power supply.
CAUTION: The power supply is generally not to be removed by the operator. Hazardous voltage is
present in the cavity if the power cord is not removed. If a faulty power supply exists, contact your
authorized service provider.
For the four-drive models, two power supplies are supported to provide redundancy for mission
critical operations. Both power supplies share the load under normal operating conditions, but if
one of the power supplies fails, the remaining power supply assumes the full load (see Figure 4 on
page 22). For the two-drive models, only one power supply is supported.
Figure 4 Library power supplies
NOTE: For the four-drive models, the left AC power receptacle is for the bottom power supply. The
right AC power receptacle is for the top power supply.
1 Power Switch
2 Power Supply
3 AC Power Cord(s)