Spectra TFinity User Manual page 37

Chapter 1 — Library Overview
Component
Drive Bay
Assemblies (DBAs)
LCM and RCM
24 VDC Robotics
Power Supply
Modules
November 2020
Description
A main or drive frame can have either three or six DBAs installed.
Each DBA provides the electrical and internal interface connections for up to
four full‐height drives. See Tape Drives on page 55 for information about the
drives used in the library. Each DBA also includes a controller bay for a RIM or
EtherLib switch to the right of the drives.
Notes:
 Any drive or controller bays that do not contain components must have
covers installed to maintain proper air circulation throughout the library and
to protect internal components.
 The library does not support placing an LTO drive in Drive Bay Assembly
position 1 if there is a TS11xx technology or T10K drive in Drive Bay
Assembly position 2, or in Drive Bay Assembly position 3 if there is a TS11xx
technology or T10K drive in Drive Bay Assembly position 4.
Dedicated on‐board library control modules run the BlueScale software that
controls all aspects of library operation. Depending on where the module is
installed, it functions as the Library Control Module (LCM) or the Robotics
Control Module (RCM). To learn more, see Spectra Library Control Modules
(LCM and RCM) on page 50.
Drive expansion frames only have an RCM, they do not include an
Note:
LCM. A cover over the opening maintains proper air circulation throughout the
frame. Media frames do not have either module.
Two 24 VDC power supply modules in the main frame provide redundant power
for the library robotics and motors, the fans, and the interior LED light bars.
DC power
status
Figure 4 The 24 VDC power supply LEDs.
Each 24 VDC power supply module has two indicator LEDs, one for DC power
status and one for AC power status. The color of the LED indicates the power
supply status:
 Green — The power is on and functioning normally.
 Orange — The power supply has a fault condition.
 Off — The power is not on or the power supply module is not functioning
normally.
Notes:
 Drive expansion frames do not include 24 VDC power supply modules.
 If the second 24 VDC power supply module is not installed, a cover over the
opening maintains proper air circulation throughout the frame.
Main and Drive Expansion Frame Rear Components
AC power
status
User Guide—Spectra TFinity Library
37