Instruction manual

switching technology, and still rely on older analog technology for

some segments), the maximum “upstream” transfer rate is limited to

a maximum of 33,600 bps between two modems; the “downstream”

rate is often within a similar range for a typical connection. Therefore,

speeds below 56,000 bps do not indicate a problem with the modem or

the IP KVM switch, but simply reﬂect the line conditions at the time the

connection is made.

Place the modem near the IP KVM switch 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 IP KVM switch.

Modem conguration

Although most connections will work appropriately with the default

settings on the IP KVM switch, manual changes can be made. To do

so:

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 IP

KVM switch’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