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Instruction Manual
49
Place the modem near the SV441DUSBI and an available telephone jack.
Connect the modem to the telephone jack, data cable, and power source
according to the instructions in its documentation. The opposite end of the
modem’s data cable should be a DB9 female serial connection. Connect
that end of the cable to the Serial connection on the rear panel of the
SV441DUSBI.
Modem conguration
Although most connections will work appropriately with the default set-
tings on SV441DUSBI, manual changes can be made. To do so:
Login to the Web interface as Admin. Click Modem, listed on the left side
of the main page. You will then be presented with the Modem Option
menu (see above). Make the following changes to enable and configure
the modem connection.
Enable modem connections (PPP) via serial port/modem:• select
Enabled.
Baud rate to use (affects connection between us and the modem •
only): select 115200.
Init string:• leave as ATE0S0=1&K3 (see below).
The baud rate dictates the connection speed between the SV441DUSBI’s
serial port and the modem, and does not affect the connection speed
between the local and remote modems, as they will negotiate their own
connection speed when a connection is made. It is highly recommended
that this setting be left at the default for best performance.
The initialization (“init”) string is the command (using the standardized
Hayes AT command set) that the SV441DUSBI will send to the modem to
activate it. The string included should work with the majority of modems
and configures the following connection properties: answer incoming
calls on the first ring, enable hardware flow control, and lock the connec-
tion speed. Your modem’s documentation will describe other potential init
strings that you can use to alter the connection properties. For instance,
you could commit the settings to the modem’s non-volatile memory