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2. Communicating with the Internal Modem

In order to invoke AT commands manually, you must communicate directly with the SRM's internal

modem. The Modem Command mode is only available via the Console Port or the serial modem port;

inbound callers cannot communicate directly with the modem. To send AT commands to the SRM's

internal modem proceed as follows:

1. Via Console Port: Access the SRM command Mode as described in the Section 5.1.1. In the

SRM-100 User's Guide.

a) When the "SRM>" command prompt appears, type /U and press [Enter] to display the SRM

Utilities Screen.

b) When the Utilities Screen appears, type 8 and press [Enter] to activate the Pass-Through mode.

When the Pass-Through Mode is active, the device connected to the Console Port can send AT

commands directly to the SRM's internal modem.

c) To exit the Pass-Through Mode, type /X and press [Enter], the unit will return to the "SRM>"

command prompt.

2. Via Modem Port: The device connected to the SRM's Modem Port can also issue AT commands

to the SRM's internal modem. Go to the secure device and start your communications program (e.g.

ProComm). Make certain that the communications program is configured to use the same COM

port that is connected to the SRM.

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Multitech MT2834ZPX Guía de usuario Pagina 4