Extron electronic MVX 88 Series ユーザーズマニュアル

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4-11
MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Remote Operation
PRELIMINAR
Y
Loading firmware using an SIS command
N
  Firmware can be uploaded two ways:
 
1.  Using the Matrix Switchers Control Program.
 
2.  Using the 
E
upload SIS command entered via a communications utility 
such as HyperTerminal.
 
Extron recommends that you upload firmware using the Matrix 
Switchers Control Program (se
e “Updating the firmware” on p
age 4-16) and 
reserve this SIS procedure for correcting firmware that has been corrupted 
and unable to respond to the Matrix Switchers Control Program.
Firmware can be loaded using SIS commands as follows:
1
Visit the Extron web site, www.extron.com, select the MVX 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.
N
  If you are performing this procedure to recover from corrupted firmware, the 
switcher will respond only to the “n”, “q”, and “
E
upload” SIS commands.
N
  The firmware upload can take several minutes.  If HyperTerminal’s echo 
function is turned off, you will have no indication that the upload is progressing.  
If desired, turn on the echo function as follows (figure 4-3):  Click 
File
 > 
Properties
 > Settings > ASCII Setup..., check the Echo typed characters 
locally
 checkbox, and then click Ok twice.
 
Figure 4-3 — Turn on the echo function
3
Depress the keyboard’s Esc key and then type 
upload.  The computer 
responds with the “Go” prompt.
4
Click Transfer > Send text file... .
5
Click the Files of type: drop box and select All files (*.*).