Internal Modem Application - ADTRAN XR Quick Start Manual

INTERNAL ANALOG MODEM APPLICATION
In order to connect an internal analog modem to the Express
XRT the following items are necessary:
• Internal analog modem
• RJ-11 to RJ-11 telephone cable
Figure 3-7 shows how to connect an internal modem to the
Express XRT.
RS-232 Cable
AC Outlet
POWER
When using an internal analog modem and the Express XRT,
two COM ports are assigned on the PC. Both COM ports are
configured independently. See the manufacturer's documenta-
tion for internal analog modem configuration.
61200.153L1-13
Chapter 3. Installing an Analog Modem
COM
Port
Dial Line Jack
OFF
ON
1
RS232 MODEM
RJ-11 to RJ-11
Telephone Cable
AnalogTelephone
Internal Analog Modem Application
Express XR/XRT Quick Start Guide
Rear View
of PC
Internal Analog Modem
RJ-11 to RJ-11
Telephone Cable
RJ-45 to RJ-11
Telephone Cable
2 3 4
2 1 ISDNU
ISDN Telephone
Wall Jack
Figure 3-7
3 7