RGB 160xi and RGB 164xi • Controls and Installation
Controls and Installation, cont’d

2-10

4. Before connecting audio, determine whether your audio
system is unbalanced or balanced. Connect an audio
device, such as powered speakers, to the rear panel stereo
audio output connector for balanced or unbalanced audio
output. Following the wiring guide (figure 2-13), insert
the wires into the appropriate openings in the captive
screw connector. Tighten the screws on top to fasten the
wires, then insert the wired audio connector into the audio
output connector on the interface rear panel.
Unbalanced Stereo Output
Tip
NO GROUND HERE.
Sleeve(s)
Tip
NO GROUND HERE.
Balanced Stereo Output
Tip
Ring
Sleeve(s)
Tip
Ring
L R
L R
Left
Right
Left
Right

CAUTION

For unbalanced audio, connect the sleeve(s)
to the center contact ground. DO NOT connect
the sleeve(s) to the negative (-) contacts.
Figure 2-13 — Captive screw connector wiring for
audio output
Setting the DIP switches
Four DIP switches on the rear panel and two DIP switches on
the front panel of the interfaces configure the interface. The DIP
switches control:
• Sync on green output
• Digital display sync processing
• Serration pulses
• ID bit termination
To set the sliding-type DIP switches, use a
Tweeker or small screwdriver to slide the switch
to the on/closed or off/open position.
Rear panel switches
SOG (sync on green output)
On — If this switch is set to on (up), the
interface outputs a composite sync signal
on top of the green video signal via the G
output connector (RGsB).
Off — If the SOG feature is set to off (down),
output is RGBS or RGBHV, depending on
how the interface and projector are cabled.
3 4
12
34
1 2
SOG
DDSP
SERR
SPARE
RGB 160xi and 164xi • Controls and Installation

2-11

DDSP™ (digital display sync processing)
On — If this switch is set to on (up), the interface does not
perform sync processing. This may be necessary
for digital display devices, such as LCD (liquid
crystal display), DLP (digital light processor) and
plasma displays.
Off — If this switch is set to off (down), the interface
performs sync processing operations, such as
horizontal shift, using Extron’s ADSP™.
Turning on the DDSP feature disables the horizontal
shift control.
SERR (serration pulses)
Many display devices, such as LCD and DLP projectors and
plasma displays, must not have serration pulses present in the
sync signal in order to display images properly. Flagging or
bending at the top of the video image is a sign that the serration
pulses should not be present.
On — When this switch is set on (up), serration pulses are
present with sync signal output.
Off — When this switch is set off (down), serration pulses
are not present with sync signal output.
Front panel switches
The RGB 160xi and RGB 164xi have two pin termination
DIP switches to provide proper ID bit termination for a
laptop computer that is not attached to a local monitor.
No Monitor
On — Set both pins to on (up) if you are using the
interface with a laptop computer that is not
connected to a local monitor.
Off — Set both pins to off (down) if you are connecting a
local monitor to the interface.
ON
NO MONITOR
NO MONITOR