XEISDNU5 Ver la hoja de datos (PDF) - Xecom
Número de pieza
componentes Descripción
Fabricante
XEISDNU5 Datasheet PDF : 10 Pages
| |||
AT Command Configuration
The most basic configuration technique is through AT commands. The user interface is similar to that of
an analog modem with an extended command set. The user communicates this information to the module
through the RS-232E ready* serial port. A PC running standard VT100 compatible serial communications
software is typically used for this purpose. The AT command set of the XEISDNU5 is designed to enable
configuration and testing for both the remote switch and the terminal adapter.
Like an analog modem, the XEISDNU5 operates in two modes: data mode and command mode. In data
mode the device sends all data received at its data ports down the ISDN link. In command mode the TA
interprets these inputs as configuration and setup commands and processes them locally. Commands are
communicated to the TA via its RS-232 ready* serial interface from the local host processor. The TA enters
command mode upon power-on, any time the Escape command “+++” is received, or when a call is
terminated.
The commands for TA configuration are modeled on the standard set used for analog modems with
extensions for the new ISDN functions. Commands for remote switch configuration and the unique ISDN
functions required of the terminal adapter have been added. The XEISDNU5 firmware contains an AT
Command Help listing which can be displayed by typing “AT&H” while in command mode. The module will
respond with a listing of AT commands with brief definitions of each. The complete command set listing
appears in the Configuration Guide along with examples of configuration profiles for typical applications.
Menu Configuration
The second configuration method uses a group of Setup Menus built into the XEISDNU5 firmware.
These menus are accessed by entering the command “@SETUP” while the module is in Command Mode.
Keyboard commands from a PC in VT100 terminal emulation mode allow the user to move through the
complete set of configuration choices, enter variable data, and store the results. Operation of the Setup
Menus are explained in the Configuration Guide.
Stored Configurations
A complete set of configuration parameters must be in place each time the XEISDNU5 places a call.
However the current parameters are held in volatile memory and are lost when the host equipment power
is interrupted. Also, once a working configuration has been established for a particular ISDN line, terminal
equipment set, and service type there is no need to change it for each call. To speed up and/or automate
the call setup process stored configurations are provided in the XEISDNU5.
Two types of stored configurations are provided: factory defaults and user defined configurations.
Factory defaults are stored in Flash memory while user defined sets are stored in EEPROM. The factory
default configuration sets provided represent setups for common applications. Descriptions of these are
contained in the Configuration Guide. There are provisions for two user defined configuration sets. In
addition the settings associated with switch parameters are stored and accessed separately to help prevent
accidental changes. Extended AT commands are provided to store and load these configuration sets upon
power up or separately. These commands are detailed in the Configuration Guide.
Page 8 of 10
XEISDNU5
Share Link: 