AL2094S Designers Guide
Doc. No. DG_2094E
Altec Electronic AG
Seite 9 / 30
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2.1 Serial DTE Interface Operation
2.1.1 Automatic Speed/Format Sensing
Command Mode and Data Modem Mode.
The modem can automatically determine the
speed and format of the data sent from the DTE. The modem can sense speeds of 300, 600,
1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800,
38400, 57600, and 115200 bps and the following data formats:
The modem can speed sense data with mark or space parity and configures itself as follows:
Fax
Modem
Mode.
In V.17 fax mode, the modem can sense speeds up to 115.2 kbps.
2.2
Establishing Data Modem Connections
2.2.1 Telephone Number Directory
The modem supports four telephone number entries in a directory that can be saved in a
serial NVRAM. Each telephone number can be up to 32 characters (including the command
line terminating carriage return) in length. A telephone number can be saved using the
&Zn=x command, and a saved telephone number can be dialed using the DS=n command.
2.2.2 Dialing
DTMF Dialing.
DTMF dialing using DTMF tone pairs is supported in accordance with ITU-T
Q.23. The transmit tone level complies with Bell Publication 47001.
Pulse Dialing.
Pulse dialing is supported in accordance with EIA/TIA-496-A.
Blind Dialing.
The modem can blind dial in the absence of a dial tone if enabled by the X0,
X1, or X3 command.
