ADTRAN Express XRT manual Internal Analog Modem Application, Terminal Emulation Modem Disable

Chapter 3. Installing an Analog Modem

Terminal Emulation Modem Disable

When using HyperACCESS or other terminal emulation packag- es, issue the AT command AT_L0 (followed by Enter). Figure 3- 6 illustrates a HyperACCESS session disabling an external analog modem.

Figure 3-6

HyperACCESS: Disabling an External Analog Modem

If carrier detect (CD) is active (a call is connected) on the external analog modem when attempting to disable it, the Express XRT will not switch control from the modem port. The call must be hung-up (disconnected) to deactivate CD.

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 on page 36 shows how to connect an internal modem to the Express XRT.

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