3-2 Netopia ISDN Modem User’s Guide
Connecting to a PC To connect the Netopia ISDN Modem model 612 to a PC:
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 a serial (COM) port
on the back of your PC.
Note: Most COM ports are labeled COM, SERIAL, or RS-232. If
the COM port has a DB-25 connector, use a DB-9–to–DB-25
adapter, which you can purchase from your local computer
parts dealer.
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
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