3Com 56k User Manual page 22

Installation of the Message Modem with Windows 3.x
Plug one end of the phone lead into the TELCO
4.
socket. Plug the other end into a phone wall
socket.
The phone socket you use must be for an
ANALOGUE phone line. Most office phones are
wired through DIGITAL lines. Be sure you know what
type of line you have. The modem will be damaged if
you use a digital phone line.
5. If you wish to use your modem and phone
through the same phone wall socket, plug your
phone's lead into the modem's phone socket. Use
an adapter cable if necessary.
You cannot use the modem and phone at the same
time if they are sharing a line.
There is no phone socket on the modem in some
countries.
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6. Turn on your modem.
7. Turn on your computer and peripherals.
8. Start Windows 3.x.
Turn to "Software Installation" (page 19) for
information about installing communications
software.
Congratulations!
You are ready to start using your
3Com U.S. Robotics Message Modem.