1.3.2 Dual Shelf Power Configuration
In the dual shelf power configuration, shown in Figure 1–5, a single primary
power source and CDU (A) are used to supply ac power to two ac power supplies
(A and B) in each shelf. If either power supply fails, the shelf remains powered
by the other supply. This configuration provides shelf power supply redundancy
to the shelf’s peripheral devices. The cabinet supports a maximum of six shelves
in the dual shelf power configuration.
Figure 1–5 Dual Shelf Power Configuration
AC POWER
SUPPLY B
AC POWER
SUPPLY A
CXO-3938A-MC
PRIMARY
AC POWER
(BLACK OR
GRAY CABLE)
SBB SHELF
PRIMARY
AC POWER
SOURCE
CDU A
PRIMARY
AC POWER
(BLACK OR
GRAY CABLE)
1–8 Introduction
