300 BPS Internal Modem  (250-1017)  Features           Faxback Doc. # 4944

Your new PLUS 300 Baud PC Modem lets you add a built-in 300 bits/second modem
to your computer.

The Modem accepts data from a computer, converts the data into two-frequency
tones and then sends the tones over telephone lines to another modem.  Con-
versely, the Modem accepts tones from telephone lines and changes those tones
into data that your computer understands.

This direct-connect, Bell 103-type modem is not only designed with standard
automatic dial, answer and disconnect features, but also a wide range of 
system configuration enhancements as well.  Its microprocessing unit (MPU) 
provides operation in both Tandy and Hayes protocol modes -- each selectable 
at the flip of a DIP switch.

In the Hayes protocol mode, your Modem is AT-compatible and capable of run-
ning with Hayes software.  Special command instructions and registers in
Hayes protocol allow you to program the Modem from your computer keyboard 
for the same operational modes used in Tandy protocol.

For example, you can set the Modem for manual originate or manual answer
mode, in which you manually dial the telephone number or answer an incoming
call when you are contacting a remote computer.  Or you can program the Modem
for auto-originate or auto-answer mode and let the Modem dial the telephone
number of a remote computer or answer an incoming call.

Another feature of the Modem is a built-in monitor speaker which enables you
to monitor audibly the dialing and data communication progress.  The situa-
tion is reported visually on your display with messages called result codes.

(css 07/28/93)