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PVS 204SA Switcher's
rear panel RS-232/MLC/IR port
Tx Rx IR
+12 V
A B C D E
NOTE
If you use cable that has a drain
wire, tie the drain wire to ground
at both ends.
E
+12 VDC
+12 VDC
D
Ground ( )
Ground ( )
IR in
C
To Projector
F
50 feet (15.2 m) maximum
MLC 52 RS
rear panel IR port
NOTE
An MLC 52 RS controller must be used for this configuration. The MLC 52 RS will
control the projector via RS-232, and the PVS 204SA by hardwired IR. An IR driver
for the PVS 204SA is available on the Extron website.
Figure 2-10 — Connecting an MLC 52 RS series controller
N Connection of an MLC 52 VC follows the same setup as the MLC 52 (see
figure 2-10), with the exception that speaker volume can be controlled with the
rotary potentiometer on the front panel of the MLC 52 VC.
RS-232/MLC/IR
Tx Rx IR
12V
+
PVS 204SA
Switcher's
A B C D E
rear panel
RS-232/MLC/IR port
NOTE
If you use cable that has a
drain wire, tie the drain wire
to ground at both ends.
Ground ( )
B Receive (Rx)
Transmit (Tx)
A
Transmit (Tx)
Receive (Rx)
NOTE
Connect a ground wire
between the switcher and the
computer or control system.
Figure 2-11 — Connecting a computer or control system
RGB
1A
I
N
P
POWER
U
T
S
12V
1B
3A MAX
PVS 204SA Switcher Rear Panel
A
B/D
IR out
E
F = (Tx) Projector
E =
IR out
D = IR Gnd
C =
IR in
B = Gnd
A =
+12 V
F E D C B A
RGB
VIDEO
1A
2A
3
I
N
P
POWER
U
T
S
12V
1B
2B
4
3A MAX
PVS 204SA Switcher Rear Panel
3
2
RS-232 port
of a computer or
control system
PVS 204SA Switcher • Installation
VIDEO
RGB
AMPLIFIED OUTPUTS
2A
3
LISTED 17TT
US
AUDIO/VIDEO
®
DO NOT GROUND
APPARATUS
OR SHORT
O
SPEAKER OUTPUTS!
U
ON
STEREO
L
T
P
RS-232 MLC/IR
HIGH
U
Tx
Rx IR
12V
PASS
T
FILTER
S
DUAL
OFF
AUX/MIX IN
A B C
2B
4
MONO
VIDEO
PROJECTOR
ON
OFF
PC
VOL
VOL
VIDEO
MLC 52
MLC 52 RS front and rear panel
NOTE
The MLC 52 must be
configured with a driver to
be used with a PVS 204SA.
RGB
AMPLIFIED OUTPUTS
LISTED 17TT
4/8 Ohms
US
AUDIO/VIDEO
®
DO NOT GROUND
APPARATUS
OR SHORT
O
SPEAKER OUTPUTS!
U
T
L
R
ON
STEREO
RS-232 MLC/IR
P
U
Tx
Rx IR
12V
DC VOL
HIGH
T
PASS
S
FILTER
DUAL
AUX/MIX IN
A B C
10V
OFF
VIDEO
MONO
VOL/MUTE
or
Host Computer
Control System
4/8 Ohms
R
DC VOL
10V
VOL/MUTE
2-9
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