Multitech MultiModem ZBA MT9234ZBA Guide de l'utilisateur télécharger pdf (Page 30)

30 Multi-Tech Systems, Inc. MT9234ZBA-Series User Guide

Your modem is controlled by firmware, which is stored in flash memory. Firmware is nonvolatile; it remains

stored in memory when the modem is turned off. However, it can be changed by either the manufacturer or the

user as bugs are fixed or new features are added.

Since the firmware in your modem is stored in flash memory, you can upgrade it yourself in a few minutes by

using the following procedures.

Identifying the Modem Firmware

You must know the model number and firmware version of your Multi-Tech modem to know whether or not you

should update it.

1. Run your favorite terminal program. If you are using Windows 95 or above, you can use Windows

HyperTerminal.

2. In the program’s terminal window, type AT&F. Even if you cannot see the AT&F command on your screen,

be sure to type it completely, and then press Enter. If the modem does not respond with OK, repeat the

AT&F command.

3. Now type ATI, press Enter, and record your results. The model number and firmware version should appear

similar to that shown below.

Agere OCM V.92 MT9234ZBAV Serial Data/Fax/Voice Modem Version 1.02i

Identifying the Current Firmware Version

Identify the current version of the firmware at the Multi-Tech Web site. If your modem already has the current

firmware, there is no need to update it.

1. Using your favorite Web browser, go to http://www.multitech.com/en_US/SUPPORT/Updates/Firmware/.

2. Scroll down to your modem model number.

3. Look at the firmware version number for your modem.

4. If the firmware version number matches the firmware version number found in “Identifying the Modem

Firmware” you have the current firmware version and do not need to be update.

5. If the firmware version number is greater than the firmware version number found in “Identifying the

Modem Firmware” your modem has an older firmware version. Continue with “Downloading the Upgrade

File.”

Warning: The first digit of the new firmware must match the first digit of the old firmware, or the modem

may not work properly; e.g., if your current firmware version is 4.16, replace it only with 4.xx

firmware, not 6.xx firmware.

Downloading the Upgrade File

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Multitech MultiModem ZBA MT9234ZBA Guide de l'utilisateur Page 30