Total Control MP/16, Руководство оператора

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D-10 AT Command Reference
computers, older equipment, or software that cannot handle
flow control and other features. Loads with a data format of
7-1-Even and a DTE rate of 9600 bps.
&F1 Hardware flow control template . Default. This template sets
the modem to hardware flow control, a fixed serial- port rate,
and the highest level result codes (if result codes are
enabled). It is identical to the NVRAM factory default
settings.
&F2 Software flow control template . This template sets the modem
to all of the &F1 defaults except hardware flow control.
Instead, it substitutes software flow control (XON/XOFF).
Use if your software, serial cable, or computer does not
support hardware flow control.
&F3 Reserved
&F4 MNP10 Cellular template. Cellular modems only. See
Cellular
section, Chapter 4.
&F5 ETC Mobile Cellular template. Cellular modems only. See
Cellular
section, Chapter 4.
&F6 ETC Fixed site template. Cellular modems only. See
Cellular
section, Chapter 4.
&G n
Guard Tone. This setting applies only to overseas calls at 2400 or
1200 bps. British phone switching systems require the modem to
send an 1800 Hz guard tone after it sends an answer tone. Some
other European phone networks require a 550 Hz guard tone.
Guard tones are not used in the United States or Canada.
&G0 No guard tone. This is used in the U.S. and in Canada.
Default.
&G1 This sets a 550 Hz guard tone, and is used in some European
countries.
&G2 This sets an 1800 Hz guard tone, and is used in the U.K. and
some Commonwealth countries. &G2 requires the B0
setting.
&H n
Transmit data flow control is for data transmitted to the modem by
its attached com puter or terminal. The modem monitors its buffer
as data comes from the computer or modem. If the buffer
approaches 90% capacity, the modem signals the computer or
terminal to stop transmitting. When the modem has sent enough
data over the link to half empty the buffer, it signals the computer
or terminal to resume transmitting.