Philips FM-2, Руководство по обслуживанию

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Supported Modems
Chapter 2 - System Interfaces 15
• a MultiTech Systems MT-5600ZDX desktop modem
• a Nokia 6210GSM cellular phone modem (GSM type)
MultiTech Systems MT-5600ZDX
Modem
Default
Initialization
String
The monitor sends the following default modem initialization string:
‘ATE0X4&K0\r’
This is the first string sent by the monitor, and it is not customizable, nor is it
obvious to the user.
The monitor expects to see an “OK” come back from the modem after the
initialization string has been sent.
If an “OK” is returned to the monitor (that is, confirmation that a modem is
connected), the monitor then sends the user-customizable initialization string,
preceded by “AT” and followed by ”\r”.
The Attention characters, ‘AT’, at the beginning of the initialization string start
the command mode. The ‘\r’ at the end represents a Return, when the characters
entered in the command line and stored in the modem’s command buffer are
executed. The monitor always automatically enters the Attention (AT) and
Return (\r) characters.
Therefore, the user never needs to enter “AT” or “\r”.
The dialing also works in the same manner. The user never needs to enter the
return “\r” after the phone number. First, the monitor sends “ATD”, then the
user-entered phone number, then “\r”. “ATD” is simply the command to dial
with whichever dialing method is set as the default. (The default setting as
shipped is Tone dialing.)
If it is necessary to change the dialing method from Tone to Pulse, or vice versa,
then this is specified in the user-entered initialization string.
For example, to change to the Pulse dialing method, simply enter a P in the
modem initialization string.