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Chapter 3. Installing an Analog Modem

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

Terminal Emulation Modem Enable

An alternative method is to use a terminal emulation package

such as HyperACCESS. In order to determine if an external

analog modem is properly connected to the Express XRT, issue

the AT command AT!Z (followed by Enter). If an external

analog modem is properly connected to the Express XRT, the

Express XRT responds with the message MODEM FOUND

(shown in Figure 3-4).

The AT!Z command is directed to the Express XRT not the

analog modem itself. An ERROR occurs if the command is sent

while the external analog modem is enabled.

If the external analog modem is not properly connected to the

Express XRT, the Express XRT responds with the message NO

MODEM FOUND.

Figure 3-4

HyperACCESS: Verifying External Modem Connection

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Adtran XRT Manual de usuario Pagina 46