Power Requirements - Spectra TFinity Site Preparation Manual

Chapter 2 — Site Requirements

Power Requirements

This section provides an overview of the power requirements for the
library. All electrical cabling must be completed before beginning the library
installation.
Failure to meet the cabling and power specifications could damage your library,
Caution
result in data loss, or both.
Power Input The main frame, the drive expansion frames, and the service
frames include dual AC power inputs. When using a redundant power
configuration, connect each input to a separate branch circuit, which
supports failover in the event of a power failure in one of the circuits.
To prevent problems switching between two AC power sources in a
redundant AC power configuration, make sure each frameʹs AC inputs are
both on the same phase. Different frames can be on different phases.
If the power sources for the dual AC inputs for a frame are not on the same phase,
Caution
damage to the library could result.
Also, the voltages of the two AC power sources must be the same within a
few volts. To ensure that this requirement is being met, measure the
voltages between the pins of the two input cables (IEC 60320‐C19).
Line voltage exists at these connectors.
WARNING
Only qualified personnel should attempt to conduct this test.
Use extreme caution when taking measurements.
March 2015
3.5 in.
(8.9 cm)
1.3 in.
(15.2 cm)
(3.3 cm)
1.25 in. (3.2 cm)
Figure 8 Floor cable access for main, drive expansion, and
service frames.
Site Preparation Guide—Spectra TFinity Library
29 in. (73.7cm)
6.0 in. 6.0 in.
(15.2 cm)
4.25 in.
(10.8 cm)
1.25 in. (3.2 cm)
Physical Requirements
6.0 in.
(15.2 cm)
23