Technical data

Detailed Explanation of the “Modem Setup” Options
The “Modem Setup” Web Page
This configuration option will allow you to configure specific features in the modem if needed. For most applications, the
default settings are ok. The options are as follows:
Scan for New Modem button: When clicked, the AcquiSuite will begin searching for the best modem to use. It first scans
any USB devices and then looks for an onboard modem (on a daughtercard, A8812 only).
While the scan is in progress, a message is displayed. This scan usually takes around 5 seconds but can take up to 60 seconds
with certain USB cellular modems because the modem must register itself with the cellular network after being powered on.
Modem type: This shows the type modem detected, or "No-Modem" if none was detected or the modem was not recognized
as a supported modem.
Supported Modems
Vendor Model # Description
dial-up (POTS) modems
Multitech MT3400SMI dial-up modem, daughtercard, A8812 only
Multitech MT5600SMI dial-up modem, daughtercard, A8812 only
Multitech MT5656SMI dial-up modem, daughtercard, A8812 only
Multitech MT5692SMI dial-up modem, daughtercard, A8812 only
U.S.Robotics USR5637 dial-up modem, USB version
Radicom V92HU-E2 dial-up modem, USB version
GSM cellular modems
Multitech MTSMC-G
GSM cellular modem, daughtercard, A8812 only
Multitech MTCBA-G-U-F4
GSM cellular modem, USB version;
Note: will appear as "MTSMC-G, connected via USB"
The “Modem Setup” Page -- Options for All Modems
Max serial port speed: This feature allows you to specify the maximum speed at which th modem can communicate at. The
default is 115.2kbps. This is useful in diagnosing noisy phone lines, you may be able to get a more reliable connection by
slowing down the maximum rate of data transfer.
Setup string: This option allows the use of specialized modem setup strings. The default "AT" is sufficient for most
applications.
Modem speaker enabled: This option sets whether the speaker is on or off. The older AcquiSuite A8811-1 (rev C) does not
contain a speaker. Newer models manufactured after September 2005 include a modem speaker. (Dialup modems only).
Debug PPP messages: Checking this option will allow the system debug log to show a complete report of the PPP
connection status. This will include the PPP session negotiation for an IP address and other connection parameters. You
must click the "start log" button on the system/log files page to record this information.
Debug modem chat: Checking this option will record information about the modem setup and call summary. This includes
modem line quality and setup parameters. You must click the "start log" button on the system/log files page to record this
information.
PPP MTU: MTU, or Maximum Transfer Unit, allows reducing the maximum size of IP packets sent over dialup/PPP
connections. This option should only be changed under the direction of Tech Support.
Modem Diagnostics: This button will run a diagnostic test on the modem to verify that it is working and report the modem
firmware version number.
Page 29 USB Modem Addendum