Modemulator User Guide
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Ampersand Commands
&$ * Display Ampersand Command Help Screen:
This command will not be forwarded to the analog modem.
&C0 * CD Override
Assert the DCD signal on the RS-232 interface for DTE applications that require it.
This command will not be forwarded to the analog modem.
&C1 * CD Normal Operation (default)
The DCD signal on the RS-232 interface behaves normally. If the Modemulator is currently in a
cellular or analog connection, the DCD signal will be asserted.
AT&$
Ampersand Command Help (unrecognized commands accepted & ignored)
&C0 CD Override &I0 S/W Recv Flow Ctrl Disabled
&C1 CD Normal &I1 Xon/Xoff Signals Local & Remote
&I2 Xon/Xoff Signals Local Only
&D0 DTR Override
&D2 DTR Normal &L0 Normal Line
&L1 Leased Line
&F0 Factory (no flow)
&F1 Factory (H/W flow) &R1 Modem Ignores RTS
&F2 Factory (S/W flow) &R2 RTS Controls RXD Out
&H0 Flow Ctrl Disabled &S0 DSR Override
&H1 Flow Ctrl H/W &S1 DSR Follows CD
&H2 Flow Ctrl S/W
&W Save Settings to EEPROM
OK