3.3 Power Requirements
3-20
501604 Rev. 07-01-19
XLS models equipped with the redundant power input module come supplied with two
power cords. The cords are three-conductor 14 AWG SJT PVC-jacketed cords terminated
with an IEC 60320 C-19 type connector at the XLS end.
Table 3-12
lists the power cords
that are available for redundant power input module equipped libraries.
Country
Volts/Amps
Qualstar
Part Number
Power Cord Description
North America
and Japan
100
–125V
15A
664-0107-6
PVC-jacketed cord terminated with a
NEMA 5-15P type plug
Other
230
–240V
16A
664-0200-9
PVC-jacketed cord terminated with the
European CEE7 Standard VII type plug
United Kingdom
200-240V
13A
664-0201-7
PVC-jacketed cord terminated with the
United Kingdom BS 1363A standard
type plug
Table 3-12
Available redeundent power input module equipped XLS power cords
3.3.2
Power Consumption
Power consumption varies with the number of tape drives installed, the number of tape
drives operating simultaneously, and the occurrence of robotic motion.
Table 3-13
lists
the power requirements for typical system configurations as well as for a single tape drive
or MEM. You can use these number to determine the actual power needs of any system
configuration..
System configuration
Consumptrion
watts
BTUs/hr
1 base, 4 tape drives
525
1,793
1 base, 16 tape drives
1,102
3,764
1 base, 32 tape drives, 1 MEM
2,081
7,106
1 base, 8 tape drives, 2 MEMs
1,138
3,887
1 base, 32 tape drives, 2 MEMs
2,291
7,824
Each tape drive adds
48
164
Each MEM adds
210
717
Table 3-13
Approximate XLS power consumption based on LTO tape drives
The current drawn from the power line (mains) is equal to the watts indicated in
Table 3-13
divided by the AC voltage available.
If your system has a large number of tape drives, connect it to a 208- to 240-volt source to
reduce the peak AC input current. The integral circuit breaker will trip at 20 amps. In
general, Qualstar recommends 220-volt input power. Using a 220-volt source will prevent
input power from being an issue during upgrades.
