3-4 Netopia ISDN Modem User’s Guide
Connecting to a Macintosh computer
To connect the Netopia ISDN Modem model 412 to a Macintosh
computer:
1. Turn off the computer and ensure that the Netopia ISDN
Modem is not plugged in.
2. Connect the 25-pin male end of the ISDN modem’s serial cable
to the port labeled RS-232 on the ISDN modem’s back panel.
3. Connect the other end of the serial cable to the printer or
modem port on the back of the Macintosh computer. For more
information about serial ports, see the “Steps 3 to 6: Selecting
the serial port options” section on page 5-2.
Connecting to the Netopia ISDN Modem
4. Connect one end of the ISDN cable to the RJ-45 port labeled
ISDN U on the ISDN modem’s back panel.
Netopia
ISDN
Modem
Wall
Outlet
ISDN
Wall Jack
FAX
Computer
RESET
9 VDC
.6A MAX RS-232 ISDN U
1 2