Extron Electronics RGB 168xi - Manual (Page 20)

RGB 168xi xi xi xi xi • Installation and Operation
Installation and Operation, cont’d
2-10
• If the jumper is placed on pins 1 and 2, output
H and V sync polarities are forced to negative.
• If the jumper is placed on pins 2 and 3, output
sync polarities follow input sync polarity: the
output sync signals’ polarity are the same as
the input polarity.
This is the default setting.
J-40: Vertical sync width jumper — This jumper
adjusts the vertical sync pulse width. Some
digital display devices have very specific
requirements for incoming sync pulse width. If
no picture displays, the picture cuts in and out,
or the picture is scrambled, try adjusting the
vertical sync pulse width or switching from
ADSP to DDSP.
• If the jumper is placed on pins 1 and 2, the
output vertical sync pulse is
short (narrow).
• If the jumper is placed on pins 2 and 3, the
output vertical sync pulse iswide. This is the
default setting.
5 . Replace and fasten the enclosure cover, reversing step 2.
If adapter plates will be installed next, this step can be
omitted.
Installing Adapter Plates
The RGB 168xi offers the ability to incorporate a variety of
optional architectural adapter plates for pass-through audio
and/or video connections. Each interface’s front panel can
hold up to four (4) input adapter plates. The rear panel can
hold up to two (2) output adapter plates.
Blank plates (three double height) are included with the
interface to cover unused spaces. Other adapter plates
must be ordered separately.
The input plates attach to the front panel. Output cables,
attached to the rear of each plate, pass through the interface
enclosure and rear panel and are held in place by clamps or,
where an output plate is installed, may be wired directly to
the rear output plate connectors. Some adapters require
cables to be soldered to the input/output plate connectors.
Adapter plates should be attached to the output cables and
interface before the interface is installed in a rack or in
furniture. The screws for installing the adapter plates are
built into the plates, so no additional screws are needed.
Wide
Short
1