Sabio 2010D, Operation Manual

Page: 105 / 182

Serial Communications Page 7-3
_________________________________________________________________
Configuring the Modem
Before connecting the Model
2010D
to a modem, the modem must be
configured to answer the phone and act as a "dumb" modem. If
the modem has DIP switches, this can usually be done by setting
the switches appropriately. Many of the newer modems, however,
have no switches, but must be set up via software. This can be
accomplished by attaching the modem to a PC or terminal and
entering the instruction codes as described below. Once the
settings have been entered, they must be saved to the modem's
non-volatile memory. Following is a brief description of the
commands that should be entered in order to configure a Hayes
compatible modem for proper auto-answer operation with the Model
2010D
.
AT&C1 Enable Carrier Detect:
The carrier detect line is used to
inform the Model
2010D
when a carrier tone is detected.
AT&S1
Enable DSR Control:
When DSR is enabled, the DSR line
will be controlled by the modem. DSR will be low when
the modem is in command mode and high when the modem is
on-line. When this line is dropped, the Model
2010D
automatically terminates the remote session. When it
is brought high, the Model
2010D
presents a log-in
message.
AT&D3
Disconnect when DTR Drops:
When a remote communications
session is terminated or times out, the Model
2010D
will drop the DTR line. This modem command instructs
the modem to disconnect and reset itself when DTR is
dropped.
ATA Auto-Answer:
This command causes the modem to go off-hook
and answer when the phone rings.
ATE0 Disable Command Echo:
This prevents command characters from
being echoed.
ATQ1 Disable Result Codes:
This prevents command result codes (e.g.
"OK" when a command is accepted) from being sent
to the Model
2010D
.
AT&W0 Save Configuration:
Saves the settings to non-volatile
memory. NOTE: Though most modems support this
command, not all modems contain non-volatile memory.
If the modem does not have non-volatile memory, all
settings will revert to factory defaults when the
modem is reset or power fails.