Connect-Tek Over IP
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beneficial to your application depends on whether you consider the modem connection to be mission-critical,
the quality of your telecom infrastructure, and your budget for implementing this solution. The model of
modem attached is essentially transparent to the
CTIP-01
.
It is important to note that modems that offer “56K” (or 56,000 bps) connections often achieve connection
speeds that are far lower than their maximum capabilities. Given the limitations of telecom infrastructure
(many locations have yet to implement fully digital 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
CTIP-01
but simply
reflect the line conditions at the time the connection is made.
Front Panel (DTE Serial Port)
Rear Panel (DCE Serial Port)
The
DTE Serial
port on the front panel can be used for serial port configuration when the modem is
connected. It requires the use of a null modem serial cable.
The
DCE Serial
port on the rear panel is used to connect the modem to the
CTIP-01
and requires the use of
a straight through serial cable.
Place the modem near the
CTIP-01
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
DCE
Serial
connection on the rear panel of the
CTIP-01
.
Configuring a Modem Connection on the CTIP-01
Most connections will work appropriately with the default settings on the
CTIP-01
once the feature is enabled.
When you entered the Unlock code to enable the feature, the
CTIP-01
created a new menu option to enable
configuration of this feature.
Login to the Web interface as
Admin
. Click
Admin/Setup
from the top of the page and choose
Modem
(PPP) setup
.
You will then be presented with the
Modem Option
menu (see above). Make the following changes to
enable and configure the modem connection.
