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AT%S DSR Override
The %S command allows you to determine the state of the DSR signal.
This command is intended to replace the DSR switch if your modem does not have one (eg.
Pocket & Rack Modems).
If your modem has a DSR option switch, the switch setting will take preference to %S. %S1
overrides any &S setting.
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The %S command does not revert to the default setting after an ATZ, AT&F or
modem power off is performed.
Options
AT%S0 ■ DSR is not overridden
AT%S1 DSR mimics the state of the DTR signal (only reset by &F.)
Range
0-1