Extron electronic MAV 44, MAV 88 Loading firmware using an SIS command, Turn on the echo function

Remote Operation, cont’d

Loading firmware using an SIS command

Firmware can be uploaded two ways:

1. Using the Matrix Switchers 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 Matrix Switchers Control Program (see “Updating the firmware” on page 4-15) 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 MAV switcher product
	category, and determine the latest firmware that is in the proper firmware set.
	• Firmware in the version 1.xx set can be replaced only by other version
	1.xx firmware, with the file extension “.HEX”.
	• Firmware in the version 2.xx set can be replaced only by other version
	2.xx firmware, with the file extension “.s19”.
	• The higher the version number within a firmware set, the more recent the
	firmware. Choose the latest version.
	Select the appropriate firmware file to 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 will respond only to the “n”, “q”, and “ Esc upload” SIS commands.

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... , click in the Echo typed characters locally checkbox, and then click Ok twice.

Figure 4-3 — Turn on the echo function

4-10 MAV 44 / 48 / 84 / 88 Matrix Switchers • Remote Operation