Sierra Video Yosemite - Manual (Page 41)

INSTALLATION
35
Audio Frame Mounting
Carefully inspect the frame to ensure that there has been no shipping damage. Make sure all modules
are seated completely in the frame.
Each of the Yosemite audio routing switchers described in this manual can be rack mounted in a standard
19" (RU) EIA rack assembly and includes rack "ears" at the ends of the front of the frames.
Ventilation
Yosemite Family audio frames use horizontal airflow and may be mounted adjacent to other equipment.
Do not obstruct the cooling holes on the left side of the frame. Do not obstruct the fan discharge on the
right side of the frame. If you are mounting an audio frame with a Yosemite video frame, be sure to allow
at least 1RU of space between the two frames and please follow the ventilation spacing requirements as
indicated in the video installation section of this manual.
AC Power Connection
The power supplies in the audio routing switcher frames are universal AC inputs. Voltage selection is not
necessary because the power supply senses the correct AC input automatically. When redundant power
supplies are used, two AC power cords should be connected to separate AC lines or circuit breakers to
maximize the benefits of the having two power supplies. The real purpose of the dual supply is to protect
the router from loss of power at it source.
Turn on power to the frame ONLY AFTER all audio and control connections have been completed as
described below
Note: The redundant supply option can not be added in the field: it must be ordered as part of the original
system or sent back to the factory for installation.