Power structure of the TS4500 tape library
This section introduces the power structure that is provided by the TS4500 tape library.
Frame control assembly (FCA)
What is included in the FCA?
For models L25, D25, L55, and D55, the library offers the TS4500 frame control assembly power structure, which combines drive power, library power, and AC power cord capabilities. Each Lx5 and Dx5 frame comes with two Back Plane Cards (BPCs) and two power supplies. Model Sx5 frames do not have their own power supply. They share power with either an Lx5 or Dx5 frame.
Redundancy provided by two or more frames with an FCA (control system)
For two or more frames that have an FCA control system, failure or repair of a particular part
does not cause the entire system to fail. Nor does it require scheduled downtime for maintenance.
For example, the replacement of any single failed power supply can be accomplished without affecting
the operation of the library. The two redundant power supplies are fed directly by independent AC
power cords that support only 220 V AC (110 V AC is not supported).
Note: AC power cords do not come
standard with models L25, D25, L55, and D55. You must specify what type of AC power cord is to be
shipped with the frame control assembly.