User Guide Manual
SMX System MultiMatrix Switcher • Introduction 2
The table below gives a list of available I/O boards, the number and type of connectors, and 
the number of slots used by any given board. For example, from the first row, the SMX 84 V 
is an 8x4 (8 inputs by 4 outputs) composite video board. It takes up one slot, and has BNC 
connectors.
Board Type I/O Connector
Board Names
Board Sizes (Slots Used) 
Composite 
Video 
BNC
SMX 84 V 
8x4 (1)
SMX 88 V 
8x8 (1)
SMX 1616 V 
16x16 (2)
S-video BNC 
SMX 84 YC 
8x4 (2)
SMX 88 YC 
8x8 (2)
SMX 1616 YC 
16x16 (4)
SDI and 
HD-SDI 
BNC
SMX 44 HD-SDI 
4x4 (1)
SMX 84 HD-SDI 
8x4 (1)
SMX 88 HD-SDI 
8x8 (1)
SMX 1616 HD-SDI 
16x16 (2)
Ultra 
Wideband
BNC 
SMX 84 WB 
8x4 (1)
SMX 88 WB 
8x8 (1)
SMX 1616 WB 
16x16 (2)
Sync BNC 
SMX 88 
SYNC (H or V) 
8x8 (1)
SMX 88 H+V 
8x8 (2)
SMX 1616 
SYNC (H or V) 
16x16 (2)
Stereo Audio
Captive 
screw
LR
SMX 84 A 
8x4 (1)
SMX 88 A 
8x8 (1)
SMX 1616 A 
16x16 (2)
DVI
DVI-I 
(digital)
SMX 44 DVI 
4x4 (1)
SMX 48 DVI 
4x8 (2)
SMX 84 DVI 
8x4 (2)
SMX 88 DVI 
8x8 (2)
DVI-Pro 
SMX 44 
DVI Pro 
4x4 (1)
SMX 48 
DVI Pro 
4x8 (2)
SMX 84 
DVI Pro 
8x4 (2)
SMX 88 
DVI Pro 
8x8 (2)
S-video 
Boards
mini DIN
SMX 84 SV 
8x4 (1)
SMX 88 SV 
8x8 (1)
SMX 1616 SV 
16x16 (2)
HDMI HDMI
SMX 44 HDMI 
4x4 (1)
SMX 48 HDMI 
4x8 (2)
SMX 84 HDMI 
8x4 (2)
SMX 88 HDMI 
8x8 (2)
Wideband 
VGA 
15-pin HD
SMX 84 VGA 
8x4 (2)
SMX 88 VGA 
8x8 (2)
SMX 1616 VGA 
16x16 (4)
Fiber Optic 
(singlemode)
Optical 
(SFP)
SMX 88 
FOX 4G SM 
8x8 (1)
SMX 1616 
4G SM 
16x16 (2)
Fiber Optic 
(multimode)
SMX 88 
FOX 4G MM 
8x8 (1)
SMX 1616 
4G MM 
16x16 (2)
USB
USB B 
input
USB A 
output
SMX 44 USB 
4x4 (1)
SMX 84 USB 
8x4 (1)
The 2U frame has 4 single board slots, the 3U frame has 6 board slots, the 4U frame has 
8 slots, and the 5U frame has 10 slots. Each slot supports power and control connections 
to the I/O boards. When a board is installed into a slot it may use more than one slot. For 
example, the SMX 1616 VGA board uses four slots. The slots that a board covers are not 
available for other I/O board installation until that multi-slot board has been removed (see 
Installing the I/O Boards on page 10 for details).
NOTE:  To customize the SMX unit, use the SMX Configurator program, available at 
www.extron.com, or contact Extron Customer Support (see back cover for contact 
numbers).










