Setup Guide — MSW 4V rs & 4SV rs
This guide provides basic instructions for
an experienced installer to set up and
operate the Extron MSW 4V rs & 4SV rs.
Installation
Step 1
Turn all of the equipment off and
disconnect it from the power source.
Step 2
Select your mounting option, install
the appropriate brackets, and mount
the MSW. Otherwise, install the four
rubber feet (included) and place the
mini video switcher on a desktop. A
mounting example is shown in figure 1.
See “Installation” in the MSW 4V rs and
MSW 4SV rs Series User’s manual
for more mounting options.
Step 3
Connect the video input cable(s). Using
video inputs 1 through 4, connect video
inputs to the MSW using the connectors
(4-pin mini DIN [
e
] or BNC [
f
])
and signal type (composite or S-video)
appropriate for your model.
Step 4
Attach the video output cable(s).
Connect up to two video output devices
to the MSW using the connectors (4-pin
mini DIN [
d
] or BNC [
a
]) and signal
type (composite or S-video) appropriate
for your model. Refer to figure 2 or see
“Rear Panel Connections” in the user’s
manual for more information.
N
Outputs A and B output an
identical signal.
Step 5
If the MSW is to be used as a remote
control for a computer or host controller,
connect a 9-pin HD connector to a
computer, then connect a 5-pole captive
screw connector to the RS-232 port (
b
) on
the mini switcher. Protocol for this port is
9600 baud, 8 data bits, 1 stop bit, no parity.
Wire the connector as follows: Pin 2 = Tx,
Pin 3 = Rx, Pin 5 = Gnd. Refer to figure
3 or see “Serial Communication” in the
user’s manual for more information.
(2) 4-40 x 3/16" Screws
Use 2 mounting holes on
opposite corners.
1U Rack Shelf
1/4 Rack Width False Front
Face Plate
A/V SWI
TCHE
R
A
U
T
O
S
W
IC
H
M
O
D
E
N
O
R
M
A
L
A
U
T
O
1
2
3
4
A/V SWI
TCHE
R
A
U
T
O
S
W
IC
H
M
O
D
E
N
O
R
M
A
L
A
U
T
O
1 2
3
4
A/V
SWITCHE
R
A
U
T
O
S
W
IC
H
M
O
D
E N
O
R
M
A
L
A
U
T
O
1
2
3
4
A/V SWIT
CHER
M
O
D
E
N
O
R
M
A
L
A
U
T
O
A
U
T
O
S
W
IT
C
H
1
2
3
4
MSW 4SV rs
CONTACT
1
2
3
4
1
2
3
4
A
B
RS-232
Tx Rx
I
N
P
U
T
S
O
U
T
P
U
T
S
POWER
12V
.5A MAX
MSW 4V rs
CONTACT
1
2
3
4
RS-232
Tx Rx
A
B
1
2
3
4
I
N
P
U
T
S
O
U
T
P
U
T
S
POWER
12V
.5A MAX
1
1
6
4
5
2
2
If you use cable that has a
drain wire, tie the drain wire to
ground at both ends.
Connect a ground wire between
the switcher and the computer or
control system.
To Computer
Rear Panel RS-232 Port
Tx Rx
A S
9 pin HD
Connector
Ground
Tr ansmit
Rx
Receive
Tx
Green
Orange
Red
Tr ansmit (Tx)
Receive (Rx)
3
2
5
1
96
Figure 1 – Rack shelf mount
Figure 2 – MSW 4SV rs/4V rs rear panel
Figure 3 – RS-232 pin assignments
Setup Guide — MSW 4V rs & 4SV rs, cont’d
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Inside USA / Canada Only
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+800.7339.8766
Inside Asia Only
+65.6383.4400
+65.6383.4664 FAX
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+81.3.3511.7655
+81.3.3511.7656 FAX
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+400.883.1568
Inside China Only
+86.21.3760.1568
+86.21.3760.1566 FAX
Extron Middle East
+971.4.2991800
+971.4.2991880 FAX
© 2009 Extron Electronics. All rights reserved.
Step 6
Power up the input and output devices.
Distribute power to the mini video switcher
by assembling the external power supply
cable (refer to figure 4) and connecting it
to the power port. Once plugged in, the
switcher automatically turns on. See
“Rear Panel Connections” in the user’s
manual for more details.
Operation — Connecting an input to the output
Step 1
Determine the necessary operation mode
for the MSW (the default is normal).
Choose Autoswitch (press
c
and
e
simultaneously) to automatically switch
to the highest numbered input with active
sync pulses. Choose Normal (press
d
and
e
simultaneously) to manually change
the input. Refer to figure 5 or see “Mode
selection” in the user’s manual for more
information on how to change modes.
Step 2
• If using normal mode, choose the desired input by pressing and releasing its input
button (
b
). The LED (
a
) for the selected input lights.
To switch to a different input, press a different input button.
• If using autoswitch mode, no action is necessary. The mini video switcher
automatically switches to the highest-numbered active input.
68-1267-50
Rev. A
08 09
A/V SWITCHER
MODE NORMAL
AUTO
AUTO
SWITCH
1
2
3
4
2
1
5 4 3
Figure 6 – Example of a typical MSW 4V rs and 4SV rs application
Power Supply
Output Cord
Captive Screw
Connector
3
5
SECTION A–A
Ridges
Smooth
A A
Tie Wrap
Extron
MSW 4SV rs
A/V Switcher
S-VHS VCR
DVD
Projector
Monitor
MSW
4SV rs
P
O
W
E
R
12V
.5A MAX
CONT
ACT
1
2
3
4
A
A
B
1
2
3
4
I
N
P
U
T
S
O
U
T
P
U
T
S
RS-232
Tx
Rx
Extron
MSW 4V rs
A/V Switcher
Camcorder
VCR
VCR
MSW 4V rs
POW
E
R
12V
.5A MA
X
1
2
3
4
C
O
N
TA
C
T
1
2
3
4
A
B
A
B
1
2
3
4
I
N
P
U
T
S
O
U
T
P
U
T
S
R
S-
232
T
x
R
x
Control System
Control System
Figure 4 – Power connector
wiring
Figure 5 – MSW 4SV rs/4V rs
front panel
/
