Paradyne COMSPHERE 3830 Quick Reference page 12

AT COMMANDS (continued)
Z3 Loads contents of Active (Saved) into
Active (Operating) and performs a reset.
Z9 Performs a full modem reset.
&Cn LSD Control
&C0 Forced On. Forces LSD ON at all times.
&C1 Standard RS232. LSD is ON when the
remote modem's carrier signal is
detected. LSD is Off when carrier
signal is not detected.
&C2 Wink When Disc. LSD, normally forced
ON, turns Off for approximately 1 to 2
seconds upon disconnect.
&C3 Follows DTR. State of LSD follows state
of DTR.
&C4 Simulated Control Carrier. State of LSD
follows state of remote modem's RTS.
&C5 =DTR/DiscOff. State of LSD follows
state of DTR except upon a disconnect
where DTR remains ON and LSD turns
Off. DTR must then toggle Off and ON to
turn LSD ON. Required for AT&T
DATAKIT dial-out applications.
&C6 Bridge Retrain. LSD behaves as in
Standard RS232, except that it is turned
Off when retrain lasts longer than 10
seconds, and ON when no retrain is
detected for 10 seconds.
&Dn DTR Action
&D0 Ignore. Modem ignores the DTR (Data
Terminal Ready) signal and treats it as
always ON.
&D1 Off=Command Mode. Modem enters
online Command mode when DTR is
lowered.
&D2 Standard RS232. DTR signal is
controlled by the DTE.
&D3 Off=Reload Straps. Modem loads Active
(Operating) area with Active (Saved)
area when DTR is lowered.
&D4 Controls On-Hook. Modem does not
disconnect until DTR lowered by DTE.
&Fn Loads Factory Configuration
&F0 Loads Async Dial factory configuration
options into Active (Operating)
configuration area.
&F3 Loads UNIX Dial factory configuration
options into Active (Operating)
configuration area.
&F5 Cellular (Mobile). Valid only if ETC is
installed.
&F6 Cellular (PSTN). Valid only if ETC is
installed.
&Gn V.22bis Guard Tone
&G0 Disables guard tone.
&G1 Sets guard tone to 550 Hz.
&G2 Sets guard tone to 1800 Hz.
AT COMMANDS (continued)
& I n Dial Transmit Level
& I 10 –10 dBm.
& I 11 –11 dBm.
& I 32 –32 dBm.
& I 99 ETC 1.0 (Cellular). Valid only if ETC is
installed.
& I 100 ETC 1.1 (Cellular). Valid only if ETC is
installed.
&Jn Dial Transmit Level Type
&J0 Modem sets dial transmit level to
Permissive mode at –9 dBm.
&Ln Leased-Line Mode
&L0 Disables leased-line operation.
&L1 2-wire originate leased-line operation.
&L3 2-wire answer leased-line operation.
&Mn,&Qn Async/Sync Mode and DTE Dialer Type
&M0,&Q0 Modem operates in Asynchronous
mode and uses AT command protocol.
&M1,&Q1 Modem operates in Synchronous mode
and uses AT command protocol.
&M2,&Q2 Modem operates in Synchronous mode
and dials telephone number stored in
directory location 1 when DTR signal
turns Off and then ON.
&M3,&Q3 Modem operates in Synchronous mode
and uses AT command protocol.
&Q4 Modem operates in Asynchronous mode
and uses AT Command protocol; Hayes
AutoSync is enabled.
&M231, &Q231 Modem operates in Asynchronous
mode; the DTE Dialer Type is disabled.
&M232, &Q232 Modem operates in Asynchronous
mode; V.25bis Async dialing is enabled.
&M233, &Q233 Modem operates in Synchronous
mode; V.25 Bisync dialing is enabled.
&M234, &Q234 Modem operates in Synchronous
mode; V.25bis HDLC dialing is enabled.
&M235, &Q235 Modem operates in Asynchronous
mode; AT&T Exclusive dialing is enabled.
&M236, &Q236 Modem operates in Synchronous
mode; the DTE Dialer Type is disabled.
&Rn RTS Action
&R0 Standard RS232. RTS action is
controlled by DTE.
&R1 Ignores RTS. Modem ignores RTS
signal and treats it as always ON.
&R2 Simulated Control Carrier. State of RTS
follows state of LSD.
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