User manual

Looking Forward to the Future
On the educational side, UCF staff has
received extremely positive feedback from
faculty members, elaborating, “The new
classrooms are in high demand because the
systems are very reliable and easy to work
with. And the standardization makes using a
different classroom a snap.” On the technical
side, UCF will continue to use Extron
products and work with Extron team
members on future projects. UCF staff
emphasized the cooperation requisite for
this cutting-edge classroom building.
“We worked with Extron to refine
schematics and system designs. Extron was
extremely responsive, making sure that their
products met the application’s needs.”
January/February 2001 ExtroNews 12.1 13
A professor’s laptop is hooked up to the
A/V system through the Extron RGB 158xi
computer-video interface. UCF staff
discussed why the RGB 158xi was selected:
“We chose this interface because it offers an
electrical outlet. This outlet eliminates the
expense of having an electrician install an
electrical outlet in each podium. The RGB
158xi’s electrical outlet and VGA input
connector are perfect for a laptop. Another
plus is the rack ears. They were handy for
installation, when we mounted the 158xi
through the podium, so there would be easy
access from the professor’s side of the
podium.”
The rack-mountable RGB 158xi is a
universal, analog interface with a 15-pin HD
input, buffered local monitor output,
unswitched AC outlet, and optional
Architectural Adapter Plates for cable pass-
through connectors. Offering 300 MHz
(-3dB) RGB video bandwidth, it is compatible
with VGA, SVGA, XGA, SXGA, UXGA, Mac,
Sun, and SGI signals. The RGB 158xi also
provides Advanced Digital Sync Processing
(ADSP™). ADSP compensates for the sync
processing limitations of digital displays, so
clear, stable images are produced.
Switching and Cabling
The Extron SW2 VGA DA2 A switches
between the RGB 158xi’s laptop source and
the podium PC. The professor uses the
room’s touch panel to select the current
input source. The PC monitor receives one
output of the SW2 VGA DA2 A. The other
output is routed to the Proxima projector
using Extron BNC-5 Mini HR Cable. The
Extron MAV 62 switches between the VCR,
document camera, and a third source, which
varies. This third source is input from one of
the AAPs of the RGB 158xi. From the
MAV 62, composite video output is carried to
the Proxima projector. The other composite
video output is sent to an interface module
and then to a Crestron touch panel.
The SW2 VGA DA2 A sends its balanced
audio output to the MAV 62. The MAV 62 in
turn routes the selected balanced audio
output to the classroom’s audio system. The
SW2 VGA DA2 A is a two input, two output,
combination switcher and distribution
amplifier. For computer-video, it switches two
15-pin HD computer-video sources to dual
15-pin HD outputs. For audio, the
SW2 VGA DA2 A accepts two stereo audio
sources (unbalanced) on 3.5 mm stereo jacks
and outputs one stereo audio output
(balanced or unbalanced) on a 3.5 mm
captive screw connector. Balanced audio
output is advantageous because it maintains
signal quality over long cable runs, whereas
unbalanced audio does not. The SW2 VGA
DA2 A includes detachable brackets for
under-desk mounting, and optional brackets
are available for through-desk mounting.
The MAV 62 is a six input, two output,
composite video and stereo audio matrix
switcher. The MAV 62 sends any input to
either or both outputs. This matrix switcher
allows the signal routing in a UCF classroom to
be easily controlled from one central location,
either the intuitive front panel or the Crestron
control system via RS-232 and SIS commands.
Each conductor of the SuperFlex BNC-5
Mini HR Cable is a 26 AWG, 75 ohm, coaxial
conductor, color-coded and wrapped in a
single jacket. Available in bulk lengths of 500
and 1,000 feet (153 and 305 meters), this
cable includes an internal ripcord for easy,
convenient cable stripping and sequential
numbering for quick measurement of cable
length. The BNC-5 Mini HR Cable is also
available in pre-cut lengths.
UNIQUE TECHNIQUES
The professor’s podium houses Extron’s RGB 158xi
computer-video interface, Extron’s SW2 VGA DA2 A
switcher and distribution amplifier, a permanent PC
and its local monitor, a VCR, and a touch panel for
control.