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DataTalker Owner’s Manual
To connect the home office DataTalker to its PC, connect an RS232C cable between the DATA/
COMMAND connector on the DataTalker and an async port on the PC (typically, COM1 or
COM2). Place DIP switch position 3 on the side of the DataTalker in the OPEN (up) position to
enable the data channel.
To connect your home telephone to the DataTalker, remove the telephone cable from the wall
jack and connect it to the VOICE/FAX CHANNEL 1 FXS connector on the DataTalker. Connect a
second RJ-11 phone cable between the Dial-Up jack on the DataTalker and your wall jack.
The home office DataTalker is now ready to communicate with the main office. When you power
on the home office DataTalker, the internal MMH2834 modem dials the previously stored number
for the main office. The OH (Off-Hook) LED lights, indicating that the modem is active. After the
main office DataTalker answers, the CD (Carrier Detect) LED lights and the RD (Remote Down)
LED goes off. At this point, voice and data communication can begin.
If you do not configure the DataTalker for DTR dialing, there is an alternate way to dial the main
office computer. Connect a phone to the FXS jack and a dial-up phone line to the internal
composite link DIAL-UP jack. Pick up the receiver and listen for a dial tone, then dial the main
office number. When you hear the answer tone, press and release the Originate switch on the
DataTalker’s front panel. The OH light will come on, then the modem will handshake and connect.
Hang up the phone and data communications will proceed normally.