Setup Guide
38 SMX System MultiMatrix Switcher • Reference Material
Mounting the SMX
Use two screws on each side of the 
SMX to attach the front panel to a 
rack. See the SMX User Guide for 
other mounting considerations 
(www.extron.com).
Installing New Boards
NOTE:  All boards are hot-swappable, and can be installed 
without shutting down the SMX or removing the power.
1.  Take note of how many slots your board needs to occupy.
a.  If necessary, remove as many blank panels as needed.
b.  If the new board is replacing an existing board, remove all 
cables from the currently installed one and loosen the two 
outer screws to remove the board.
2.  Slide the I/O board into the open slot, carefully aligning it with 
the plastic slides and the power source in the frame. Push it firmly 
into place.
3.  Tighten the screws on each end of the board.
NOTE:  Use a tool to fully tighten the screws after initial 
installation and subsequent removal and replacement 
of the boards.
4.  Set the plane address with the rotary encoder (see Setting Plane 
Addresses on page 4).
RESET
RS232/RS422
REMOTE
LAN
ACT
LINK
50-60Hz
100-240V 1.3A MAX.
US
LISTED 17T T
AUDIO/VIDEO
APPARATUS
®
1
5
tx rx
tx
3
tx rx
7
tx
2
6
tx rx
tx
4
tx rx
8
tx
PLANE ADRESS
DIGITAL VIDEO
SDI / HDSDI OUTPUTS
8
7
1
4
5
6
3
2
SDI / HDSDI INPUTS
8
7
1 4
5
6
3
2
PLANE ADRESS
INPUTS
1
2
3
4
OUTPUTS
1
2
3
4
PLANE ADRESS
COMPUTER IN
5
6
7
8
1
2
3
4
COMPUTER OUT
5
6
7
8
1
2
3
4
PLANE ADRESS
VIDEO OUTPUTS
16
15
9 12
13
14
11
10
VIDEO INPUTS
16
15
9
12
13
14
11
10
16
15
9 12
13
14
11
10
16
15
9 12
13
14
11
10
S-VIDEO
Y
C
Y
C
Y
C
IN
PLANE ADRESS
9
10
11
12
13
14
15
16
L
R
L R
L R
L
R
L
R
L R
L R
L R
L
1
R
L
2
R
L
3
R
L
4
R
L
5
R
L
6
R
L
7
R
L
8
R
I
N
P
U
T
S
I
N
P
U
T
S
9
10
11
12
13
14
15
16
L R
L
R
L R
L R
L
R
L R
L R
L
R
L
1
R
L
2
R
L
3
R
L
4
R
L
5
R
L
6
R
L
7
R
L
8
R
O
U
T
P
U
T
S
O
U
T
P
U
T
S
Optional 
Board
(audio shown)
Figure 30. SMX Frame Rear Showing Board Installation
New output boards are autodetected and take approximately 
20 seconds to initialize. If the unit is connected by RS-232 or RS-422, 
Telnet, or LAN, a Reconfig notice is shown.
Any new boards are now ready for cabling and configuration.










