ADTRAN 336048VUR-2, XRT Chapter Installing an Analog Modem, External Analog Modem Application

Chapter 3. Installing an Analog Modem

Chapter 3

Installing an Analog Modem

An external or internal analog modem can be connected to the Express XRT to access an Internet provider, BBS, or host server that does not support ISDN.

EXTERNAL ANALOG MODEM APPLICATION

In order to connect an external analog modem to the Express XRT, the following items are necessary:

•External analog modem

•RS-232 serial cable

•RJ-11 to RJ-11 telephone cable

Incoming calls must use ISDN phone number 2 for external analog applications.

In addition to the RS-232 cable connecting the Express XRT to the PC, a separate RS-232 cable is required to connect an external analog modem to the Express XRT. This RS-232 cable is not supplied.

Figure 3-1 illustrates an external analog modem connected to the Express XRT. This setup requires only one PC COM port, and supports DTE rates of up to 115.2 kbps.

61200.153L1-13 Express XR/XRT Quick Start Guide 27