Extron Electronics RGB 203 Rxi User Guide User Manual
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BNC output connectors — Connect a coaxial cable between the display (projector or
monitor) and the rear panel BNC connectors, as shown in the figure at right.
For RGBHV (separate H and V sync) output, connect the cables to five
BNCs.
For RGBS (composite sync), connect the cables to four BNCs.
For RGsB (sync on green, SOG), connect the cables to three BNCs. Also
select the SOG option on the rear panel DIP switch (see
on page 8).
f
Remote connector — Connect an RS-232 device (control system or PC
computer) for remote switching between inputs and remote centering control to this
9-pin D female connector (see figure below for wiring details).
Pin
RS-232
Contact closure
Function
1
—
In#1
Input #1
2
TX
—
—
Transmit data (-)
3
RX
Receive data (+)
4
—
In#2
Input #2
5
Gnd
Gnd
Signal ground
6
—
In#3
Input #3
7
—
—
—
8
—
—
—
9
—
—
—
Female
5
1
9
6
Figure 4.
Wiring for 9-pin D connector
Software for RS-232 control is included with the interface. See
Connect a contact closure remote control device to this 9-pin D female connector for
remote switching between inputs.
The rear panel Remote connector also provides a way to select an input to the interface
using a remote contact closure device. Contact closure control uses pins on the
Remote connnector that are not used by the RS-232 interface. The contact closure pin
assignments are shown in the table in figure 4.
To select a different input number using a contact closure device, momentarily short the
pin for the desired input number to logic ground (pin 5). To force one of the inputs to be
always selected, leave the short to logic ground in place. The short overrides front panel
input selections.
NOTE: Shorting the contact closure pin to override the front panel selection does
not work if the interface is in auto switch mode (the rear panel
is set to On).
RGBHV
RGBS
RGsB
R
H
G
V
B
S
R
G
S
B
V
H
S
R
G
B
V
H
RGB 203 Rxi • Rear Panel Cabling
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