Service manual

34 Encore — Installation and Service Manual
Section 2 — Installation
Each side of the Encore Controller frame has two screws with spacers
(
Figure 14). The openings on the rear support bracket will fit over the screw
heads. The spacers allow enough room to slide the bracket along the frame.
Adjust the bracket to fit the rack and secure with user supplied screws,
washers, and nuts.
Figure 14. Encore Rear Support Bracket
Frame Power
Frames may be powered using either an AC power source, or a 48V DC
power source. It is also possible to cable a matrix using an AC power source
and a 48V DC power source at the same time. If a matrix has both AC and
DC power sources available it will use whichever power source can meet
its power level demand. So if the AC power source fails then the DC power
source would feed the matrix, and if the DC power starts to fall the AC
power would feed the matrix. AC and DC power sources are kept separate
with no feedback, so the AC power source will not charge batteries used in
a connected DC power source.
AC Connections
The Encore System Controller frame comes with one power supply. Redun-
dancy is provided by adding an additional power supply.
8103_03_72r0
Rear Support Bracket
Screw Head
Spacer
Screw Head
Spacer