User`s guide

TECHNICAL REFERENCE
69
&Cn Controls Carrier Detect (CD)
signal
&C0 CD override
&C1 Normal CD operations
&Dn Controls Data Terminal Ready
(DTR) operations
&D0 DTR override
&D1 DTR toggle causes online
Command mode
&D2 Normal DTR operations
&D3 Resets on receipt of DTR
&Fn Loads a read-only (non-
programmable) factory
configuration
&F0 Generic template
&F1 Hardware flow control template
&F2 Software flow control template
&Gn Sets Guard Tone
&G0 No guard tone, U.S. and
Canada
&G1 550 Hz guard tone, some
European countries, requires B0
setting
&G2 1800 Hz guard tone, U.K.,
requires B0 setting
&Hn Sets Transmit Data (TD) flow control,
see also &Rn
&H0 Flow control disabled
&H1 Hardware flow control, Clear to
Send (CTS)
&H2 Software flow control, Xon/Xoff
&H3 Hardware and software flow
control