Epson 500 Series - Manual (Page 55)

If you have a fax/modem, your package also includes BitCom
data communications software and WinFax LITE fax transmission
software already loaded on your hard disk drive. See the
documentation that came with these applications for details on
how to use them.
Appendix B provides a summary of the modem's features and
internal command set. You need to use the fax/modem's built-in
set of commands only if you are not using the telecommunications
software package. Each communications programs provides its
own set of commands that you will use to control the modem
instead of the built-in set.
Note
Be sure to read the modem FCC information at the back of this
manual to avoid electrial interference problems.
Adding Memory Modules or a Numeric
coprocessor
The sections below describe how to add memory to your
computer and install a numeric coprocessor. To access the sockets
for these options, you need to remove the keyboard.
Caution
It is best to have your Authorized EPSON Servicer install the
memory module or a numeric coprocessor for you because they
can be damaged easily if installed incorrectly. If you prefer to
install them yourself, carefully follow the instructions in this
section. If you have any question at all, please contact your
Authorized EPSON Servicer or call the EPSON Connection.
4-10
Connection Optional Devices