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FEATURES (Cont.)
n Quad-standard decoder– The System 4LDxi is
compatible with all standard video formats
including NTSC 3.58, NTSC 4.43, PAL and
SECAM.
n Built-in line doubler– The System 4LDxi
includes a built-in line doubler which eliminates
scan lines on video images by doubling the num-
ber of lines displayed. The input video (15.7
kHz) is converted to a 31.5 kHz RGB line dou-
bled analog signal.
n Three-line adaptive comb filter– A built-in three-
line adaptive comb filter helps provide crisp, sta-
ble output from the System 4LDxi .
n Motion mode compensation– The System 4LDxi
line doubler has motion mode compensation to
eliminate the "jaggies” which are commonly
associated with enhanced video such as line
doubling.
n Universal inputs– The System 4LDxi has four
universal inputs capable of accepting all computer
RGB signals, composite video and S-Video
standard signals (NTSC, PAL and SECAM). No
optional modules are needed for each input signal
type. Looping capabilities allow for up to 22
inputs.
n Balanced/unbalanced stereo audio inputs– Every
System 4LDxi is capable of switching up to four
balanced or unbalanced stereo audio signals.
Input through professional captive screw termi-
nals, audio can be switched to follow any video or
RGB input signal or “broken away” for maximum
flexibility.
n Triple Action Switching
™
(
RGB delay switching)–
Exclusive to Extron, this unique delay switching
feature in the System 4LDxi makes it possible to
have “seamless” switching for all projector models.
This is done by a triple-action switch. When an
input is selected (either by front panel or RS-232),
the RGB video is turned “off” and sync is left on,
then sync is switched to the new source and final-
ly, RGB video is turned back “on.” This makes
“glitch free” switching possible with every projec-
tor on the market.
n
LCD menu-driven picture and programming controls–
The System 4LDxi has an LCD menu that makes
set-up and programming of its many features or
functions simple. An alpha-numeric display allows
for any of the line doubler controls such as color,
hue, contrast and detail to be adjusted and stored in
memory for each input.
n Sync polarity programming– The output sync polar-
ity of the System 4LDxi may be programmed to be
either positive or negative going for both horizontal
and vertical sync signals, ensuring that any projector
will differentiate the line doubler’s output from a
640 x 480 VGA or 31.5 kHz computer signal.
n Universal projector control– Extron’s System 4LDxi
is fully compatible with all digitally controlled pro-
jectors. Using the projector-brand remote control,
the System 4LDxi can be made to switch inputs,
power “on” or “off” the projector, mute the audio or
video signals and switch the four inputs. This may
also be accomplished by using the System 4LDxi
front panel controls or through a third party control
system via RS-232, in order that the switcher is able
to “talk” to the projector.
n Universal compatibility– The System 4LDxi com-
municates using the projector manufacturer's remote
control with all digitally controlled projectors on the
market today such as Ampro, Barco, Electrohome,
Hughes/JVC, Mitsubishi, NEC, Panasonic, Runco,
SELECO, Sony and Toshiba as well as the
Mitsubishi XC Series monitors.
n RS-232 control– The System 4LDxi has built-in
RS-232 control for third party control of any of its
features or functions. Extron has also developed a
free Windows
®
based control program which allows
the 4LDxi to be controlled with a remote PC.
n 300 MHz (-dB) RGB video bandwidth– The 300
MHz bandwidth of the System 4LDxi allows for the
connection of video signals and super high resolu-
tion computers such as SUN, Silicon Graphics,
VESA, M
AC/Quadra, SuperVGA, PowerMAC, Power
PC, HP, NCD, Chromatics and DEC workstations.
This ensures the highest resolution possible for any
application.
n RGBS or RGBHV output– The System 4LDxi con-
verts all video inputs to an RGB output. This one
output (RGBS or RGBHV) makes the System
4LDxi easy to connect all video signals to any pro-
jector brand through one cable.
FEATURES