ADTRAN Express XRT manual Installing an Analog Modem, External Analog Modem Application

Models: Express XRT

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Chapter 3 Installing an Analog Modem

An external or internal analog modem can be connected to the Ex- press 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 ap- plications.

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 an- alog modem to the Express XRT. This RS-232 cable is not sup- plied.

Figure 3-1 on page 28 illustrates an external analog modem con- nected to the Express XRT. This setup requires only one PC COM port, and supports DTE rates of up to 115.2 kbps.

61202.153L3-1

Express XRT User Guide

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ADTRAN Express XRT manual Installing an Analog Modem, External Analog Modem Application