User guide
Control/remote — switcher host ports
Serial host control port ...................   1 bidirectional RS-232 or RS-422, rear panel female 9-pin D connector 
1 bidirectional RS-232 front panel 2.5 mm mini stereo jack
Baud rate and protocol
 ...................  9600 (default), 19200, 38400, 115200 baud (rear port only), adjustable; 8 data bits, 
1 stop bit, no parity
Serial control pin configurations
9-pin female D connector
RS-232 ...............................   2 = Tx, 3 = Rx, 5 = GND
RS-422 ...............................   2 = Tx-, 3 = Rx-, 5 = GND, 7 = Rx+, 8 = Tx+
Mini stereo jack
RS-232
 ...............................   Tip = Tx, ring = Rx, sleeve = GND
Ethernet control port ......................   1 female RJ-45
Ethernet data rate (for network communication) 
10/100Base-T, half/full duplex with autodetect
Ethernet protocol
 ...........................   ARP, ICMP (ping), IP, TCP, DHCP, HTTP, SMTP, Telnet
Ethernet default settings ................   Link speed and duplex level = autodetected 
IP address = 192.168.254.254 
Subnet mask = 255.255.0.0 
Default gateway = 0.0.0.0 
DHCP = off
Web server
 .....................................   Up to 200 simultaneous sessions 
7.0 MB nonvolatile user memory
Program control
 .............................   Extron control/conguration program for Windows
® 
Extron Simple Instruction Set
™
 (SIS
™
) 
Microsoft
®
 Internet Explorer
®
 ver. 6 or higher, Telnet
General
Power supply ..................................   Internal, with or without redundant power supply 
Input: 100-240 VAC, 50-60 Hz
Power consumption .......................   15.0 to 180 watts, depending on configuration
Temperature/humidity ....................   Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing 
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
Cooling ..........................................   Fan, left to right (as viewed from front panel)
Thermal dissipation, full load ..........   50 to 620 BTU/hr, depending on conguration
Mounting
Rack mount .............................  Yes
Enclosure type ................................  Metal
Enclosure dimensions .....................   (Depth excludes connectors. Width excludes rack ears.)
SMX 200 Frame .......................   3.5" H x 17.0" W x 12.0" D (2U high, full rack wide) 
(8.9 cm H x 43.1 cm W x 30.5 cm D)
SMX 300 Frame .......................   5.25" H x 17.0" W x 12" D (3U high, full rack wide) 
(13.3 cm H x 43.2 cm W x 30.5 cm D)
SMX 400 Frame .......................   7.0" H x 17.0" W x 12" D (4U high, full rack wide) 
(17.8 cm H x 43.2 cm W x 30.5 cm D)
SMX 500 Frame .......................   8.75" H x 17.0" W x 12" D (5U high, full rack wide) 
(22.2 cm H x 43.2 cm W x 30.5 cm D)
SMX System MultiMatrix Switcher • Reference Information 122










