ADTRAN XRT Terminal Emulation Modem Enable, HyperACCESS Verifying External Modem Connection

Chapter 3. Installing an Analog Modem

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

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