Remote Control, cont’d
MMX 32 VGA A • Remote Control MMX 32 VGA A • Remote Control
Loading firmware using an SIS command
Firmware can be uploaded two ways:
1. Using the Universal Switcher Control Program.
2. Using the
Esc
upload SIS command entered via a
communications utility such as HyperTerminal.
Extron recommends that you upload firmware
using the Universal Switcher Control Program (see
Updating the firmware on page 3-12) and reserve
this SIS procedure for correcting firmware that has
been corrupted and is unable to respond to the
Universal Switcher Control Program.
Firmware can be loaded using SIS commands as follows:
1. Visit the Extron Web site, www.extron.com, select the
MMX switcher product category, select the latest firmware
file for download, and copy it to your computer. Note the
folder to which you save the firmware file.
2. Start a communications utility such as HyperTerminal.
Select the Comm port that is connected to the switcher’s
RS-232 port. Use 9600 bits per second, 8 data bits, “none”
parity, 1 stop bit, and “none” flow control.
If you are performing this procedure to recover from
corrupted firmware, the switcher responds only to the
“n”, “q”, and “
Esc
upload” SIS commands.

Command ASCII Command Response Additional description

(host to switcher) (switcher to host)
Executive mode
Lock front panel 1 X/x Exe1 Enable executive mode.
Unlock front panel 0 X/x Exe0 Disable executive mode.
Lock status X/x
X
9
Executive mode status (0 = off and 1 = on).
Reset to factory defaults
System reset (factory default)
Esc
ZXXX Zpx Clear all ties and reset audio to 0dB.
Unmute RGB/Audio (all mutes)
Esc
ZZ Zpz Unmute all.
View ties and output mute
View RGB output tie
X
3
%
X
2
Example:2%3 Output 2 video tied to input 3 video.
View audio output tie
X
3
$
X
2
Example:1$2 Output 1 audio tied to input 2 audio.
Output mute
X
3
VM
X20
Output mute
X20
(0 = no mute, 1 = video mute,
2 = audio mute, 3 = video and audio mute).
Information requests
Information request I/i V1*
X
2
•A1*
X
2
•V2*
X
2
•A2*
X2
•Vmt1*
X
9
•Amt1*
X
9
•Vmt2*
X
9
•Amt2*
X
9
Example: i V1*1•A1*1•V2*2•A2*2•Vmt1*0•Amt1*0•Vmt2*0•Amt2*0
Request part number N/n xx-xxx-xx 60-565-01=MMX 32 VGA A switcher.
Query software version Q/q
X19
Software version number.
Commands can be made back-to-back with no spaces. Example 1*1!02!03*03!...
The matrix switcher supports the 2-digit numeric format (01*02).
3-73-6