US Robotics COURIER Manuel d'utilisateur télécharger pdf (Page 228)

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U.S. Robotics I-modem Command Reference

Appendix A: Alphabetic Command Summary • Page A-21

&Sn Send the computer a Data Set Ready (DSR) signal via the EIA-232 interface.

(ÒData SetÓ is industry jargon for modem.)

&S0 DSR is always ON (override).

&S1 In Originate mode: Send DSR after dialing, on detection of the remote

deviceÕs answer tone. In Answer mode: Send DSR after sending an answer

tone.

&S2 When Carrier is lost, send a pulsed DSR signal with Clear to Send (CTS)

following Carrier Detect (CD). This option is for specialized equipment

such as automatic callback units.

&S3 Same as &S2, but without the CTS signal.

&S4 Send the computer DSR at the same time as CD.

&S5 Send DSR normally, and follow CTS with CD.

&Tn Test the I-modem.

&T0 End testing.

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US Robotics COURIER Manuel d'utilisateur Page 228

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