ADTRAN 1200153L2, 3360.9VU01, 1200153L1, 336048VUR-2, XRT Internal Analog Modem Application

Chapter 3. Installing an Analog Modem

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.

COM	Rear View
Port
	of PC
RS-232 Cable	Dial Line Jack Internal Analog Modem
	RJ-11 to RJ-11
	Telephone Cable

AC Outlet

POWER RS232 MODEM

OFF

ON

2 1 ISDNU

RJ-45 to RJ-11 Telephone Cable

ISDN Telephone

RJ-11 to RJ-11Wall Jack

Telephone Cable

AnalogTelephone

Figure 3-7

Internal Analog Modem Application

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 Express XR/XRT Quick Start Guide 37