Chapter 2—Site Requirements Physical Requirements
February 2019 Site Preparation Guide—Spectra T950B Library
28
Grounding Requirements
Due to electromagnetic interference (EMI) filtering in each dual AC power
module, the leakage current for main frames and drive frames is such that
they require a secure connection from the chassis of the unit to an earth
ground.
Use one or more of the following methods for securing a ground
connection when installing a main frame or drive frame:
Notes: Cord lock brackets and cords with locking connectors are not
compatible and cannot be used simultaneously.
Expansion Frame Power Modules do not require locking
cords or special grounding.
Add cord lock brackets (Spectra Logic part number 5497) to all main
and drive frames. See “Installing Cord Locks” in the Spectra T950
Library User Guide for more information.
Use a cord with locking connectors at both ends, such as L6-20P to
locking C19 (Spectra Logic part number 9594).
Power Outlet Location The twist lock supply-end connector is considered
the power disconnect for the unit. The outlet must therefore be installed in
an accessible location near the library.
Power Receptacles The power receptacles for the main frame and the
drive expansion frames are located in the lower right-hand corner of the
frame as you face the back of the library (see Figure 3 on page 16).
The following table shows the number of power receptacles on each frame
type.
Power Consumption and Cooling Requirements
The power and cooling requirements for the library depend on the number
and type of drives installed. The following table provides the maximum
power consumption and heat load for the base library and for each
additional component added to the base library. Use this information to
calculate the total maximum power consumption and heat load values,
which can be used to build a power budget for the library.
Frame Type Number of Power Outlets
Main Frame 2
a
a. The second connection is the redundant or failover connection.
Drive Expansion Frame 2
a
Media Expansion Frame 0
Bulk TAP Media Frame 0
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