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Chapter 3. Installing an Analog Modem
Rear View of PC
AC Outlet
External
Analog
Modem
Connecting an External Analog Modem
To connect an external analog modem to the Express XRT use the
following procedure:
1. Ensure the Express XRT is connected to the PC. See the section
Connecting the Express XRT on page 6 for detailed instructions.
2. Ensure the modem power is OFF before connecting it to the
Express XRT.
3. Connect one end of the RS-232 serial cable to the external ana-
log modem.
4. Connect the other end of the same RS-232 serial cable to the Ex-
press XRT port labeled MODEM. An illustration of a modem
is positioned above the modem port.
5. Connect one end of the RJ-11 to RJ-11 telephone cable to the
telephone jack labeled 2 on the Express XRT. Positioned above
the jack is an illustration of a telephone above a modem.
28
RS-232 Cable
OFF
ON
1
2
3
4
POWER
RS232
MODEM
2
RS-232 Cable
RJ-11 to RJ-11
telephone cable
Dial Line Jack
Analog Telephone
External Analog Modem Application
Express XRT User Guide
COM Ports
RJ-45 to RJ-45
Cable
NT1
ISDN Telephone
Wall Jack
1
ISDNU
Express XRT
Figure 3-1
61202.153L3-1
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