T
ROUBLESHOOTING AND
O
NLINE
H
ELP
R
ESOURCES
121
PROBLEM
DIAGNOSIS
POSSIBLE SOLUTION
Your
communications
software is
reporting many
cyclic redundancy
check (CRC) errors
and low characters
per second (CPS)
(cont.).
Errors are
constantly
occurring in your
V.17 fax
transmissions.
RapidComm fails
to initialize the
modem.
You may be trying to
download a file to a
compressed area of your
hard disk.
Your modem initialization
string could be insufficient
for fax transmissions.
There may be a
Terminate and Stay
Resident (TSR) program
(such as a screen saver or
virus scanner) running in
the background, disrupting
data communications.
Your baud rate may be set
too high.
You may be trying to fax
a compressed file
RapidComm’s port
settings may be incorrect.
Download to an uncompressed area on your hard drive.
In terminal mode, type AT&H3&I2&R2S7=90 and press ENTER. This is
an initialization string. The standard string for faxing is AT&F1S36=0.
Disable any Terminate and Stay Resident (TSR) programs running in the
background. If you have software running as a TSR, check the software’s
manual for information about disabling its ability to operate as a TSR.
Lower baud rate to 9600, 7200, or 4800.
Open the file in the application in which it was created. Select RapidComm
as the printer and then print the file.
Make sure RapidComm’s port settings are correctly set for your modem.
