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Rear Panel Connectors
1
2
3
4
SWP123- 2
AUD I O [ VG A ]
L
L
+24V
TALK OVER
PHANTOM
THRESHOLD
POWER
ADJUST
OFF
+
R
R
INPUT 1
INPUT 2
INPUT 3
ON
MIC INPUT
VGA
INPUT 1
INPUT 2
INPUT 3
20
Figure 2-2 — Rear panel of the SWP123
Microphone input — 3-pin female XLR connector for an external
1
microphone
+24V Phantom Power On/Off — This switch turns the phantom power
2
(24V) to the microphone input connector (3-pin female XLR) on or off.
Talk Over Threshold Adjust potentiometer — This pot adjusts the talk-
3
over sensitivity at the microphone input.
Audio (VGA) input group — Eight female RCA connectors (four right and
4
four left) for audio input (numbered 1 to 4)
Audio (VGA) output — One 5-pole captive screw connector for stereo
5
output from the VGA group input
Audio (S-video) input group — Eight female RCA connectors (four right
6
and four left) for audio input (numbered 1 to 4)
Audio (S-video) output — One 5-pole captive screw connector for stereo
7
output from the S-video group input
Audio (Composite) input group — Eight female RCA connectors (four right
8
and four left) for audio input (numbered 1 to 4)
Audio (Composite) audio output — One 5-pole captive screw connector for
9
stereo output from the Composite Video group inputs
Master Audio output — One 5-pole captive screw connector for the Master
10
Audio stereo output
AC power — Standard AC power connector for a power source of
11
100 – 240 VAC, operating at 50/60 Hz
AC Fuse holder — Remove this holder to change out the AC fuses (1.6 A,
12
250 V, Time Delay).
Serial Format Select DIP switch — Allows the switcher to
13
be configured to accept RS-232 (all switches left) or RS-422/
RS-485 (all switches right) communication standard.
5
6
AU D I O [ S - V I D E O ]
L
L
L
L
L
OUTPUT
+
R
-
R
R
R
R
R
-
L
+
INPUT 4
INPUT 1
INPUT 2
INPUT 3
INPUT 4
S- V I D E O
INPUT 4
OUTPUT
INPUT 1
INPUT 2
INPUT 3
INPUT 4
19
18
The range of the pot is 3/4 of a turn, so care should be taken not to force or
over turn this pot.
To avoid electric shock, unplug power before attempting to change the
fuse.
SWP123 Presentation Switcher • Installation
7
8
9
10
AU D I O [ C O M P O S ITE]
MASTER
L
OUTPUT
L
L
L
L
OUTPUT
OUTPUT
+
+
R
R
-
-
R
R
R
R
R
-
-
L
L
+
+
INPUT 1
INPUT 2
INPUT 3
INPUT 4
M A D E I N U. S. A .
C O M P OS I T E V I D E O
INPUT 4
OUTPUT
INPUT 1
INPUT 2
INPUT 3
OUTPUT
15
17
16
14 13
100-240V
0.4A 50/60Hz
AUDIO
11
+
R
-
-
L
+
12
FUSE: 1.6A 250V
TIME DELAY
SERIAL
SERIAL
PORT
FORMAT
LISTED
C
1T23
RX+
SELECT
I.T.E.
RX-
TX+
TX-
MADE IN
GND
USA
RS232
RS4 2 2 / 4 8 5
RS-232
RS-422/485
2-3
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