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If your hardware allows it and if your software supports it, replace the 16450 UART
with a 16550 model. With this UART installed, you may drive your serial port at 57600
bps and above.
If you are running at a high serial speed, e.g. 230.4Kbps or 460.8Kbps, on your PC, be
sure to enable the disk cache by including SMARTDRV execution in your AUTOEXEC
batch file.
Default Modem Settings for PC's
The Comet 336 factory settings are configured for operation with PC type computers
and communications software. In most cases, no additional settings will be required.
The following are some of the default settings that are used for operation with PC
computers and software:
AT Command
E1
&C1
&D2
&K4
&N0
20 Basic Modem Operation
Description
Echoes command characters
Carrier detect follows remote carrier
Modem disconnects on DTR on-to-off transition
Use both V.42 and MNP 4 error correction, and use both
V.42bis and MNP 5 data compression
Modem negotiates highest possible connection speed
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