2-9
PVS 204SA Switcher • Installation
PVS 204SA Switcher’s
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.
Tx Rx IR +12 V
A B C D E
IR in
+12 VDC
Ground ( )
C
PVS 204SA Switcher Rear Panel
L
R
AUX/MIX IN
DO NOT GROUND
OR SHORT
SPEAKER OUTPUTS!
1B
1A
I
N
P
U
T
S
O
U
T
P
U
T
S
2B
2A
4
3
RS-232 MLC/IR
DC VOL
4/8 Ohms
AMPLIFIED OUTPUTS
VOL/MUTE
Tx
A B C
Rx IR
12V
10V
POWER
12V
3A MAX
US
LISTED 17TT
AUDIO/VIDEO
APPARATUS
®
RGB
VIDEO
RGB
VIDEO
Ground ( )
+12 VDC
50 feet (15.2 m) maximum
IR out
E
To Projector
F E D C B A
+12 V
B = Gnd
A =
IR in
D = IR Gnd
C =
IR out
F = (Tx) Projector
E =
B/D
MLC 52 RS
rear panel IR port
A
E
D
NOTE
The MLC 52 must be
configured with a driver to
be used with a PVS 204SA.
Tx
IR OU
T
GND
IR IN
GND
+ 12V
MLC 52
PROJECTOR
PC
VIDEO
OFF
MLC 52 RS front and rear panel
HIGH
PASS
FILTER
ON
STEREO
DUAL
MONO
OFF
ON
VOL
VOL
F
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 port
of a computer or
control system
PVS 204SA
Switcher’s
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.
Tx Rx IR
+
12V
A B C D E
RS-232/MLC/IR
Host Computer
Control System
or
Transmit (Tx)
Receive (Rx)
3
2
PVS 204SA Switcher Rear Panel
L
R
AUX/MIX IN
DO NOT GROUND
OR SHORT
SPEAKER OUTPUTS!
1B
1A
I
N
P
U
T
S
O
U
T
P
U
T
S
2B
2A
4
3
RS-232 MLC/IR
DC VOL
4/8 Ohms
AMPLIFIED OUTPUTS
VOL/MUTE
Tx
A B C
Rx IR
12V
10V
POWER
12V
3A MAX
US
LISTED 17TT
AUDIO/VIDEO
APPARATUS
®
RGB
VIDEO
RGB
VIDEO
Ground ( )
Transmit (Tx)
B Receive (Rx)
A
HIGH
PASS
FILTER
ON
STEREO
DUAL
MONO
OFF
NOTE
Connect a
ground wire
between the switcher and the
computer or control system.
Figure 2-11 — Connecting a computer or control system
